{ "checked": "2026-10-26T17:40:35.353521+00:00", "date": "2026-10-26", "version": "2026-10-26.1", "mode": "verified-snapshot", "grid": { "asOf": "2026-10-26T11:58:00-04:00", "actual": [ { "time": "2026-10-26T00:00:00.000-04:00", "mw": 10370.565 }, { "time": "2026-10-26T00:05:00.000-04:00", "mw": 10315.605 }, { "time": "2026-10-26T00:10:00.000-04:00", "mw": 10292.025 }, { "time": "2026-10-26T00:15:00.000-04:00", "mw": 10257.909 }, { "time": "2026-10-26T00:20:00.000-04:00", "mw": 10199.123 }, { "time": "2026-10-26T00:25:00.000-04:00", "mw": 10156.326 }, { "time": "2026-10-26T00:30:00.000-04:00", "mw": 10121.456 }, { "time": "2026-10-26T00:35:00.000-04:00", "mw": 10078.988 }, { "time": "2026-10-26T00:40:00.000-04:00", "mw": 10076.598 }, { "time": "2026-10-26T00:45:00.000-04:00", "mw": 10040.917 }, { "time": "2026-10-26T00:50:00.000-04:00", "mw": 10032.813 }, { "time": "2026-10-26T00:55:00.000-04:00", "mw": 9978.444 }, { "time": "2026-10-26T01:00:00.000-04:00", "mw": 9975.465 }, { "time": "2026-10-26T01:05:00.000-04:00", "mw": 9941.716 }, { "time": "2026-10-26T01:10:00.000-04:00", "mw": 9933.129 }, { "time": "2026-10-26T01:15:00.000-04:00", "mw": 9919.053 }, { "time": "2026-10-26T01:20:00.000-04:00", "mw": 9869.295 }, { "time": "2026-10-26T01:25:00.000-04:00", "mw": 9861.246 }, { "time": "2026-10-26T01:30:00.000-04:00", "mw": 9826.655 }, { "time": "2026-10-26T01:35:00.000-04:00", "mw": 9814.118 }, { "time": "2026-10-26T01:40:00.000-04:00", "mw": 9814.004 }, { "time": "2026-10-26T01:45:00.000-04:00", "mw": 9779.726 }, { "time": "2026-10-26T01:50:00.000-04:00", "mw": 9776.404 }, { "time": "2026-10-26T01:55:00.000-04:00", "mw": 9763.79 }, { "time": "2026-10-26T02:00:00.000-04:00", "mw": 9776.846 }, { "time": "2026-10-26T02:05:00.000-04:00", "mw": 9781.644 }, { "time": "2026-10-26T02:10:00.000-04:00", "mw": 9742.886 }, { "time": "2026-10-26T02:15:00.000-04:00", "mw": 9741.884 }, { "time": "2026-10-26T02:20:00.000-04:00", "mw": 9734.578 }, { "time": "2026-10-26T02:25:00.000-04:00", "mw": 9735.724 }, { "time": "2026-10-26T02:30:00.000-04:00", "mw": 9715.305 }, { "time": "2026-10-26T02:35:00.000-04:00", "mw": 9708.765 }, { "time": "2026-10-26T02:40:00.000-04:00", "mw": 9719.135 }, { "time": "2026-10-26T02:45:00.000-04:00", "mw": 9713.919 }, { "time": "2026-10-26T02:50:00.000-04:00", "mw": 9746.001 }, { "time": "2026-10-26T02:55:00.000-04:00", "mw": 9703.651 }, { "time": "2026-10-26T03:00:00.000-04:00", "mw": 9722.885 }, { "time": "2026-10-26T03:05:00.000-04:00", "mw": 9726.513 }, { "time": "2026-10-26T03:10:00.000-04:00", "mw": 9769.085 }, { "time": "2026-10-26T03:15:00.000-04:00", "mw": 9767.032 }, { "time": "2026-10-26T03:20:00.000-04:00", "mw": 9760.501 }, { "time": "2026-10-26T03:25:00.000-04:00", "mw": 9797.228 }, { "time": "2026-10-26T03:30:00.000-04:00", "mw": 9801.063 }, { "time": "2026-10-26T03:35:00.000-04:00", "mw": 9810.429 }, { "time": "2026-10-26T03:40:00.000-04:00", "mw": 9822.866 }, { "time": "2026-10-26T03:45:00.000-04:00", "mw": 9838.687 }, { "time": "2026-10-26T03:50:00.000-04:00", "mw": 9863.568 }, { "time": "2026-10-26T03:55:00.000-04:00", "mw": 9921.33 }, { "time": "2026-10-26T04:00:00.000-04:00", "mw": 9910.267 }, { "time": "2026-10-26T04:05:00.000-04:00", "mw": 9975.65 }, { "time": "2026-10-26T04:10:00.000-04:00", "mw": 10021.258 }, { "time": "2026-10-26T04:15:00.000-04:00", "mw": 10055.329 }, { "time": "2026-10-26T04:20:00.000-04:00", "mw": 10095.71 }, { "time": "2026-10-26T04:25:00.000-04:00", "mw": 10145.08 }, { "time": "2026-10-26T04:30:00.000-04:00", "mw": 10155.708 }, { "time": "2026-10-26T04:35:00.000-04:00", "mw": 10205.854 }, { "time": "2026-10-26T04:40:00.000-04:00", "mw": 10289.694 }, { "time": "2026-10-26T04:45:00.000-04:00", "mw": 10317.506 }, { "time": "2026-10-26T04:50:00.000-04:00", "mw": 10345.841 }, { "time": "2026-10-26T04:55:00.000-04:00", "mw": 10430.948 }, { "time": "2026-10-26T05:00:00.000-04:00", "mw": 10530.984 }, { "time": "2026-10-26T05:05:00.000-04:00", "mw": 10682.126 }, { "time": "2026-10-26T05:10:00.000-04:00", "mw": 10752.4 }, { "time": "2026-10-26T05:15:00.000-04:00", "mw": 10857.021 }, { "time": "2026-10-26T05:20:00.000-04:00", "mw": 10927.529 }, { "time": "2026-10-26T05:25:00.000-04:00", "mw": 11021.307 }, { "time": "2026-10-26T05:30:00.000-04:00", "mw": 11083.083 }, { "time": "2026-10-26T05:35:00.000-04:00", "mw": 11211.359 }, { "time": "2026-10-26T05:40:00.000-04:00", "mw": 11304.021 }, { "time": "2026-10-26T05:45:00.000-04:00", "mw": 11393.602 }, { "time": "2026-10-26T05:50:00.000-04:00", "mw": 11505.534 }, { "time": "2026-10-26T05:55:00.000-04:00", "mw": 11610.394 }, { "time": "2026-10-26T06:00:00.000-04:00", "mw": 11868.163 }, { "time": "2026-10-26T06:05:00.000-04:00", "mw": 12002.128 }, { "time": "2026-10-26T06:10:00.000-04:00", "mw": 12234.922 }, { "time": "2026-10-26T06:15:00.000-04:00", "mw": 12408.383 }, { "time": "2026-10-26T06:20:00.000-04:00", "mw": 12493.943 }, { "time": "2026-10-26T06:25:00.000-04:00", "mw": 12633.39 }, { "time": "2026-10-26T06:30:00.000-04:00", "mw": 12693.629 }, { "time": "2026-10-26T06:35:00.000-04:00", "mw": 12805.193 }, { "time": "2026-10-26T06:40:00.000-04:00", "mw": 12977.778 }, { "time": "2026-10-26T06:45:00.000-04:00", "mw": 13060.146 }, { "time": "2026-10-26T06:50:00.000-04:00", "mw": 13124.684 }, { "time": "2026-10-26T06:55:00.000-04:00", "mw": 13185.627 }, { "time": "2026-10-26T07:00:00.000-04:00", "mw": 13333.393 }, { "time": "2026-10-26T07:05:00.000-04:00", "mw": 13369.347 }, { "time": "2026-10-26T07:10:00.000-04:00", "mw": 13454.135 }, { "time": "2026-10-26T07:15:00.000-04:00", "mw": 13557.646 }, { "time": "2026-10-26T07:20:00.000-04:00", "mw": 13642.213 }, { "time": "2026-10-26T07:25:00.000-04:00", "mw": 13639.775 }, { "time": "2026-10-26T07:30:00.000-04:00", "mw": 13647.998 }, { "time": "2026-10-26T07:35:00.000-04:00", "mw": 13613.182 }, { "time": "2026-10-26T07:40:00.000-04:00", "mw": 13621.844 }, { "time": "2026-10-26T07:45:00.000-04:00", "mw": 13613.426 }, { "time": "2026-10-26T07:50:00.000-04:00", "mw": 13622.511 }, { "time": "2026-10-26T07:55:00.000-04:00", "mw": 13486.677 }, { "time": "2026-10-26T08:00:00.000-04:00", "mw": 13351.912 }, { "time": "2026-10-26T08:05:00.000-04:00", "mw": 13263.404 }, { "time": "2026-10-26T08:10:00.000-04:00", "mw": 13207.046 }, { "time": "2026-10-26T08:15:00.000-04:00", "mw": 13107.796 }, { "time": "2026-10-26T08:20:00.000-04:00", "mw": 13011.299 }, { "time": "2026-10-26T08:25:00.000-04:00", "mw": 12859.188 }, { "time": "2026-10-26T08:30:00.000-04:00", "mw": 12786.756 }, { "time": "2026-10-26T08:35:00.000-04:00", "mw": 12647.316 }, { "time": "2026-10-26T08:40:00.000-04:00", "mw": 12534.034 }, { "time": "2026-10-26T08:45:00.000-04:00", "mw": 12354.177 }, { "time": "2026-10-26T08:50:00.000-04:00", "mw": 12167.081 }, { "time": "2026-10-26T08:55:00.000-04:00", "mw": 12105.344 }, { "time": "2026-10-26T09:00:00.000-04:00", "mw": 11934.364 }, { "time": "2026-10-26T09:05:00.000-04:00", "mw": 11766.612 }, { "time": "2026-10-26T09:10:00.000-04:00", "mw": 11640.991 }, { "time": "2026-10-26T09:15:00.000-04:00", "mw": 11550.892 }, { "time": "2026-10-26T09:20:00.000-04:00", "mw": 11424.775 }, { "time": "2026-10-26T09:25:00.000-04:00", "mw": 11336.861 }, { "time": "2026-10-26T09:30:00.000-04:00", "mw": 11233.642 }, { "time": "2026-10-26T09:35:00.000-04:00", "mw": 11092.098 }, { "time": "2026-10-26T09:40:00.000-04:00", "mw": 10988.177 }, { "time": "2026-10-26T09:45:00.000-04:00", "mw": 10933.839 }, { "time": "2026-10-26T09:50:00.000-04:00", "mw": 10740.964 }, { "time": "2026-10-26T09:55:00.000-04:00", "mw": 10725.602 }, { "time": "2026-10-26T10:00:00.000-04:00", "mw": 10629.385 }, { "time": "2026-10-26T10:05:00.000-04:00", "mw": 10594.782 }, { "time": "2026-10-26T10:10:00.000-04:00", "mw": 10504.705 }, { "time": "2026-10-26T10:15:00.000-04:00", "mw": 10454.12 }, { "time": "2026-10-26T10:20:00.000-04:00", "mw": 10391.043 }, { "time": "2026-10-26T10:25:00.000-04:00", "mw": 10282.064 }, { "time": "2026-10-26T10:30:00.000-04:00", "mw": 10234.79 }, { "time": "2026-10-26T10:35:00.000-04:00", "mw": 10115.32 }, { "time": "2026-10-26T10:40:00.000-04:00", "mw": 10104.211 }, { "time": "2026-10-26T10:45:00.000-04:00", "mw": 10048.073 }, { "time": "2026-10-26T10:50:00.000-04:00", "mw": 10020.839 }, { "time": "2026-10-26T10:55:00.000-04:00", "mw": 9988.404 }, { "time": "2026-10-26T11:00:00.000-04:00", "mw": 9957.271 }, { "time": "2026-10-26T11:05:00.000-04:00", "mw": 9834.054 }, { "time": "2026-10-26T11:10:00.000-04:00", "mw": 9758.784 }, { "time": "2026-10-26T11:15:00.000-04:00", "mw": 9665.435 }, { "time": "2026-10-26T11:20:00.000-04:00", "mw": 9621.72 }, { "time": "2026-10-26T11:25:00.000-04:00", "mw": 9556.996 }, { "time": "2026-10-26T11:30:00.000-04:00", "mw": 9501.789 }, { "time": "2026-10-26T11:35:00.000-04:00", "mw": 9492.221 }, { "time": "2026-10-26T11:40:00.000-04:00", "mw": 9477.775 }, { "time": "2026-10-26T11:45:00.000-04:00", "mw": 9439.013 }, { "time": "2026-10-26T11:50:00.000-04:00", "mw": 9414.278 }, { "time": "2026-10-26T11:55:00.000-04:00", "mw": 9401.659 }, { "time": "2026-10-26T12:00:00.000-04:00", "mw": 9383.081 }, { "time": "2026-10-26T12:05:00.000-04:00", "mw": 9362.371 }, { "time": "2026-10-26T12:10:00.000-04:00", "mw": 9377.047 }, { "time": "2026-10-26T12:15:00.000-04:00", "mw": 9448.518 }, { "time": "2026-10-26T12:20:00.000-04:00", "mw": 9415.648 }, { "time": "2026-10-26T12:25:00.000-04:00", "mw": 9386.277 }, { "time": "2026-10-26T12:30:00.000-04:00", "mw": 9365.069 }, { "time": "2026-10-26T12:35:00.000-04:00", "mw": 9399.529 }, { "time": "2026-10-26T12:40:00.000-04:00", "mw": 9426.63 }, { "time": "2026-10-26T12:45:00.000-04:00", "mw": 9439.045 }, { "time": "2026-10-26T12:50:00.000-04:00", "mw": 9414.144 }, { "time": "2026-10-26T12:55:00.000-04:00", "mw": 9453.679 }, { "time": "2026-10-26T13:00:00.000-04:00", "mw": 9410.574 }, { "time": "2026-10-26T13:05:00.000-04:00", "mw": 9435.678 }, { "time": "2026-10-26T13:10:00.000-04:00", "mw": 9489.684 }, { "time": "2026-10-26T13:15:00.000-04:00", "mw": 9504.542 }, { "time": "2026-10-26T13:20:00.000-04:00", "mw": 9505.618 }, { "time": "2026-10-26T13:25:00.000-04:00", "mw": 9602.729 }, { "time": "2026-10-26T13:30:00.000-04:00", "mw": 9629.87 }, { "time": "2026-10-26T13:35:00.000-04:00", "mw": 9649.889 } ], "forecast": [ { "time": "2026-10-26T00:00:00.000-04:00", "mw": 10050.0 }, { "time": "2026-10-26T01:00:00.000-04:00", "mw": 9750.0 }, { "time": "2026-10-26T02:00:00.000-04:00", "mw": 9610.0 }, { "time": "2026-10-26T03:00:00.000-04:00", "mw": 9650.0 }, { "time": "2026-10-26T04:00:00.000-04:00", "mw": 10000.0 }, { "time": "2026-10-26T05:00:00.000-04:00", "mw": 10900.0 }, { "time": "2026-10-26T06:00:00.000-04:00", "mw": 12370.0 }, { "time": "2026-10-26T07:00:00.000-04:00", "mw": 13240.0 }, { "time": "2026-10-26T08:00:00.000-04:00", "mw": 12470.0 }, { "time": "2026-10-26T09:00:00.000-04:00", "mw": 11030.0 }, { "time": "2026-10-26T10:00:00.000-04:00", "mw": 10050.0 }, { "time": "2026-10-26T11:00:00.000-04:00", "mw": 9400.0 }, { "time": "2026-10-26T12:00:00.000-04:00", "mw": 9200.0 }, { "time": "2026-10-26T13:00:00.000-04:00", "mw": 9600.0 }, { "time": "2026-10-26T14:00:00.000-04:00", "mw": 9940.0 }, { "time": "2026-10-26T15:00:00.000-04:00", "mw": 10720.0 }, { "time": "2026-10-26T16:00:00.000-04:00", "mw": 12320.0 }, { "time": "2026-10-26T17:00:00.000-04:00", "mw": 13880.0 }, { "time": "2026-10-26T18:00:00.000-04:00", "mw": 14100.0 }, { "time": "2026-10-26T19:00:00.000-04:00", "mw": 13810.0 }, { "time": "2026-10-26T20:00:00.000-04:00", "mw": 13410.0 }, { "time": "2026-10-26T21:00:00.000-04:00", "mw": 12620.0 }, { "time": "2026-10-26T22:00:00.000-04:00", "mw": 11590.0 }, { "time": "2026-10-26T23:00:00.000-04:00", "mw": 10670.0 } ], "status": "Normal", "available": 19236, "peak": 14100, "surplus": 2998, "yesterday": 13720 }, "mix": [ { "fuel": "Batteries", "group": "Batteries", "mw": 2 }, { "fuel": "Hydro", "group": "Hydro", "mw": 220 }, { "fuel": "Natural Gas", "group": "Natural Gas", "mw": 5277 }, { "fuel": "Nuclear", "group": "Nuclear", "mw": 2111 }, { "fuel": "Other", "group": "Other", "mw": 9 }, { "fuel": "Landfill Gas", "group": "Renewables", "mw": 2 }, { "fuel": "Refuse", "group": "Renewables", "mw": 333 }, { "fuel": "Solar", "group": "Renewables", "mw": 738 }, { "fuel": "Wind", "group": "Renewables", "mw": 1251 }, { "fuel": "Wood", "group": "Renewables", "mw": 118 } ], "retail": { "Residential": [ { "area": "New England", "current": 28.31, "prior": 29.01 }, { "area": "Massachusetts", "current": 30.48, "prior": 30.55 }, { "area": "United States", "current": 18.16, "prior": 17.57 } ], "Commercial": [ { "area": "New England", "current": 22.24, "prior": 22.61 }, { "area": "Massachusetts", "current": 24.11, "prior": 23.15 }, { "area": "United States", "current": 14.47, "prior": 13.87 } ], "Industrial": [ { "area": "New England", "current": 17.56, "prior": 17.68 }, { "area": "Massachusetts", "current": 20.03, "prior": 19.17 }, { "area": "United States", "current": 9.64, "prior": 8.98 } ] }, "wholesale": [ { "id": "4008", "name": "NEMA / Boston", "today": [ { "he": 1, "lmp": 33.43, "energy": 33.02, "congestion": 0.02, "losses": 0.39 }, { "he": 2, "lmp": 31.46, "energy": 31.09, "congestion": 0.02, "losses": 0.35 }, { "he": 3, "lmp": 30.82, "energy": 30.45, "congestion": 0.02, "losses": 0.35 }, { "he": 4, "lmp": 30.83, "energy": 30.47, "congestion": 0.0, "losses": 0.36 }, { "he": 5, "lmp": 33.69, "energy": 33.28, "congestion": 0.0, "losses": 0.41 }, { "he": 6, "lmp": 35.47, "energy": 35.0, "congestion": 0.0, "losses": 0.47 }, { "he": 7, "lmp": 55.2, "energy": 54.37, "congestion": 0.01, "losses": 0.82 }, { "he": 8, "lmp": 70.2, "energy": 68.71, "congestion": 0.54, "losses": 0.95 }, { "he": 9, "lmp": 65.26, "energy": 64.07, "congestion": 0.39, "losses": 0.8 }, { "he": 10, "lmp": 42.56, "energy": 41.98, "congestion": 0.11, "losses": 0.47 }, { "he": 11, "lmp": 34.27, "energy": 33.91, "congestion": 0.0, "losses": 0.36 }, { "he": 12, "lmp": 30.08, "energy": 29.79, "congestion": 0.0, "losses": 0.29 }, { "he": 13, "lmp": 27.85, "energy": 27.57, "congestion": 0.0, "losses": 0.28 }, { "he": 14, "lmp": 29.56, "energy": 29.32, "congestion": 0.0, "losses": 0.24 }, { "he": 15, "lmp": 32.18, "energy": 31.89, "congestion": 0.0, "losses": 0.29 }, { "he": 16, "lmp": 36.62, "energy": 36.2, "congestion": 0.0, "losses": 0.42 }, { "he": 17, "lmp": 46.56, "energy": 46.1, "congestion": 0.0, "losses": 0.46 }, { "he": 18, "lmp": 56.07, "energy": 55.62, "congestion": 0.0, "losses": 0.45 }, { "he": 19, "lmp": 61.54, "energy": 61.1, "congestion": 0.0, "losses": 0.44 }, { "he": 20, "lmp": 59.58, "energy": 59.25, "congestion": 0.0, "losses": 0.33 }, { "he": 21, "lmp": 60.84, "energy": 60.57, "congestion": 0.0, "losses": 0.27 }, { "he": 22, "lmp": 45.0, "energy": 44.85, "congestion": 0.0, "losses": 0.15 }, { "he": 23, "lmp": 41.19, "energy": 40.83, "congestion": 0.0, "losses": 0.36 }, { "he": 24, "lmp": 33.1, "energy": 32.83, "congestion": 0.0, "losses": 0.27 } ], "prior": [ { "he": 1, "lmp": 36.67, "energy": 36.24, "congestion": 0.0, "losses": 0.43 }, { "he": 2, "lmp": 35.01, "energy": 34.6, "congestion": 0.0, "losses": 0.41 }, { "he": 3, "lmp": 33.17, "energy": 32.81, "congestion": 0.0, "losses": 0.36 }, { "he": 4, "lmp": 33.99, "energy": 33.62, "congestion": 0.0, "losses": 0.37 }, { "he": 5, "lmp": 34.03, "energy": 33.65, "congestion": 0.0, "losses": 0.38 }, { "he": 6, "lmp": 34.3, "energy": 33.91, "congestion": 0.0, "losses": 0.39 }, { "he": 7, "lmp": 38.87, "energy": 38.33, "congestion": 0.0, "losses": 0.54 }, { "he": 8, "lmp": 44.16, "energy": 43.54, "congestion": 0.0, "losses": 0.62 }, { "he": 9, "lmp": 34.36, "energy": 33.9, "congestion": 0.0, "losses": 0.46 }, { "he": 10, "lmp": 29.99, "energy": 29.66, "congestion": 0.0, "losses": 0.33 }, { "he": 11, "lmp": 27.48, "energy": 27.19, "congestion": 0.0, "losses": 0.29 }, { "he": 12, "lmp": 27.08, "energy": 26.84, "congestion": 0.0, "losses": 0.24 }, { "he": 13, "lmp": 25.52, "energy": 25.27, "congestion": 0.0, "losses": 0.25 }, { "he": 14, "lmp": 25.37, "energy": 25.15, "congestion": 0.0, "losses": 0.22 }, { "he": 15, "lmp": 26.92, "energy": 26.65, "congestion": 0.0, "losses": 0.27 }, { "he": 16, "lmp": 28.82, "energy": 28.49, "congestion": 0.0, "losses": 0.33 }, { "he": 17, "lmp": 39.74, "energy": 39.24, "congestion": 0.0, "losses": 0.5 }, { "he": 18, "lmp": 52.09, "energy": 51.46, "congestion": 0.01, "losses": 0.62 }, { "he": 19, "lmp": 57.0, "energy": 56.37, "congestion": 0.01, "losses": 0.62 }, { "he": 20, "lmp": 52.0, "energy": 51.46, "congestion": 0.01, "losses": 0.53 }, { "he": 21, "lmp": 35.55, "energy": 35.14, "congestion": 0.0, "losses": 0.41 }, { "he": 22, "lmp": 33.34, "energy": 33.04, "congestion": 0.0, "losses": 0.3 }, { "he": 23, "lmp": 31.44, "energy": 31.05, "congestion": 0.0, "losses": 0.39 }, { "he": 24, "lmp": 30.7, "energy": 30.32, "congestion": 0.0, "losses": 0.38 } ], "mean": 42.64, "priorMean": 35.31666666666667, "change": 20.736196319018397 }, { "id": "4006", "name": "SEMA", "today": [ { "he": 1, "lmp": 33.66, "energy": 33.02, "congestion": 0.02, "losses": 0.62 }, { "he": 2, "lmp": 31.69, "energy": 31.09, "congestion": 0.02, "losses": 0.58 }, { "he": 3, "lmp": 31.05, "energy": 30.45, "congestion": 0.02, "losses": 0.58 }, { "he": 4, "lmp": 31.06, "energy": 30.47, "congestion": 0.0, "losses": 0.59 }, { "he": 5, "lmp": 33.89, "energy": 33.28, "congestion": 0.0, "losses": 0.61 }, { "he": 6, "lmp": 35.61, "energy": 35.0, "congestion": 0.0, "losses": 0.61 }, { "he": 7, "lmp": 55.26, "energy": 54.37, "congestion": 0.01, "losses": 0.88 }, { "he": 8, "lmp": 71.49, "energy": 68.71, "congestion": 1.77, "losses": 1.01 }, { "he": 9, "lmp": 66.21, "energy": 64.07, "congestion": 1.29, "losses": 0.85 }, { "he": 10, "lmp": 42.7, "energy": 41.98, "congestion": 0.34, "losses": 0.38 }, { "he": 11, "lmp": 34.22, "energy": 33.91, "congestion": 0.0, "losses": 0.31 }, { "he": 12, "lmp": 30.04, "energy": 29.79, "congestion": 0.0, "losses": 0.25 }, { "he": 13, "lmp": 27.79, "energy": 27.57, "congestion": 0.0, "losses": 0.22 }, { "he": 14, "lmp": 29.52, "energy": 29.32, "congestion": 0.0, "losses": 0.2 }, { "he": 15, "lmp": 32.09, "energy": 31.89, "congestion": 0.0, "losses": 0.2 }, { "he": 16, "lmp": 36.46, "energy": 36.2, "congestion": 0.0, "losses": 0.26 }, { "he": 17, "lmp": 46.48, "energy": 46.1, "congestion": 0.0, "losses": 0.38 }, { "he": 18, "lmp": 56.08, "energy": 55.62, "congestion": 0.0, "losses": 0.46 }, { "he": 19, "lmp": 61.63, "energy": 61.1, "congestion": 0.0, "losses": 0.53 }, { "he": 20, "lmp": 59.63, "energy": 59.25, "congestion": 0.0, "losses": 0.38 }, { "he": 21, "lmp": 61.02, "energy": 60.57, "congestion": 0.0, "losses": 0.45 }, { "he": 22, "lmp": 45.15, "energy": 44.85, "congestion": 0.0, "losses": 0.3 }, { "he": 23, "lmp": 41.22, "energy": 40.83, "congestion": 0.0, "losses": 0.39 }, { "he": 24, "lmp": 33.19, "energy": 32.83, "congestion": 0.0, "losses": 0.36 } ], "prior": [ { "he": 1, "lmp": 36.86, "energy": 36.24, "congestion": 0.0, "losses": 0.62 }, { "he": 2, "lmp": 35.2, "energy": 34.6, "congestion": 0.0, "losses": 0.6 }, { "he": 3, "lmp": 33.37, "energy": 32.81, "congestion": 0.0, "losses": 0.56 }, { "he": 4, "lmp": 34.16, "energy": 33.62, "congestion": 0.0, "losses": 0.54 }, { "he": 5, "lmp": 34.22, "energy": 33.65, "congestion": 0.0, "losses": 0.57 }, { "he": 6, "lmp": 34.5, "energy": 33.91, "congestion": 0.0, "losses": 0.59 }, { "he": 7, "lmp": 38.91, "energy": 38.33, "congestion": 0.0, "losses": 0.58 }, { "he": 8, "lmp": 44.19, "energy": 43.54, "congestion": 0.0, "losses": 0.65 }, { "he": 9, "lmp": 34.43, "energy": 33.9, "congestion": 0.0, "losses": 0.53 }, { "he": 10, "lmp": 30.05, "energy": 29.66, "congestion": 0.0, "losses": 0.39 }, { "he": 11, "lmp": 27.58, "energy": 27.19, "congestion": 0.0, "losses": 0.39 }, { "he": 12, "lmp": 27.17, "energy": 26.84, "congestion": 0.0, "losses": 0.33 }, { "he": 13, "lmp": 25.58, "energy": 25.27, "congestion": 0.0, "losses": 0.31 }, { "he": 14, "lmp": 25.44, "energy": 25.15, "congestion": 0.0, "losses": 0.29 }, { "he": 15, "lmp": 26.99, "energy": 26.65, "congestion": 0.0, "losses": 0.34 }, { "he": 16, "lmp": 28.89, "energy": 28.49, "congestion": 0.0, "losses": 0.4 }, { "he": 17, "lmp": 39.79, "energy": 39.24, "congestion": 0.0, "losses": 0.55 }, { "he": 18, "lmp": 52.33, "energy": 51.46, "congestion": 0.01, "losses": 0.86 }, { "he": 19, "lmp": 57.28, "energy": 56.37, "congestion": 0.01, "losses": 0.9 }, { "he": 20, "lmp": 52.28, "energy": 51.46, "congestion": 0.01, "losses": 0.81 }, { "he": 21, "lmp": 35.76, "energy": 35.14, "congestion": 0.0, "losses": 0.62 }, { "he": 22, "lmp": 33.57, "energy": 33.04, "congestion": 0.0, "losses": 0.53 }, { "he": 23, "lmp": 31.59, "energy": 31.05, "congestion": 0.0, "losses": 0.54 }, { "he": 24, "lmp": 30.9, "energy": 30.32, "congestion": 0.0, "losses": 0.58 } ], "mean": 42.79749999999999, "priorMean": 35.46, "change": 20.692329385222763 }, { "id": "4007", "name": "WCMA", "today": [ { "he": 1, "lmp": 33.41, "energy": 33.02, "congestion": 0.02, "losses": 0.37 }, { "he": 2, "lmp": 31.47, "energy": 31.09, "congestion": 0.02, "losses": 0.36 }, { "he": 3, "lmp": 30.83, "energy": 30.45, "congestion": 0.02, "losses": 0.36 }, { "he": 4, "lmp": 30.84, "energy": 30.47, "congestion": 0.0, "losses": 0.37 }, { "he": 5, "lmp": 33.67, "energy": 33.28, "congestion": 0.0, "losses": 0.39 }, { "he": 6, "lmp": 35.34, "energy": 35.0, "congestion": 0.0, "losses": 0.34 }, { "he": 7, "lmp": 54.83, "energy": 54.37, "congestion": 0.01, "losses": 0.45 }, { "he": 8, "lmp": 69.16, "energy": 68.71, "congestion": 0.15, "losses": 0.3 }, { "he": 9, "lmp": 64.58, "energy": 64.07, "congestion": 0.11, "losses": 0.4 }, { "he": 10, "lmp": 42.36, "energy": 41.98, "congestion": 0.03, "losses": 0.35 }, { "he": 11, "lmp": 34.25, "energy": 33.91, "congestion": 0.0, "losses": 0.34 }, { "he": 12, "lmp": 30.08, "energy": 29.79, "congestion": 0.0, "losses": 0.29 }, { "he": 13, "lmp": 27.85, "energy": 27.57, "congestion": 0.0, "losses": 0.28 }, { "he": 14, "lmp": 29.63, "energy": 29.32, "congestion": 0.0, "losses": 0.31 }, { "he": 15, "lmp": 32.23, "energy": 31.89, "congestion": 0.0, "losses": 0.34 }, { "he": 16, "lmp": 36.53, "energy": 36.2, "congestion": 0.0, "losses": 0.33 }, { "he": 17, "lmp": 46.55, "energy": 46.1, "congestion": 0.0, "losses": 0.45 }, { "he": 18, "lmp": 56.12, "energy": 55.62, "congestion": 0.0, "losses": 0.5 }, { "he": 19, "lmp": 61.72, "energy": 61.1, "congestion": 0.0, "losses": 0.62 }, { "he": 20, "lmp": 59.86, "energy": 59.25, "congestion": 0.0, "losses": 0.61 }, { "he": 21, "lmp": 61.37, "energy": 60.57, "congestion": 0.0, "losses": 0.8 }, { "he": 22, "lmp": 45.39, "energy": 44.85, "congestion": 0.0, "losses": 0.54 }, { "he": 23, "lmp": 41.34, "energy": 40.83, "congestion": 0.0, "losses": 0.51 }, { "he": 24, "lmp": 33.27, "energy": 32.83, "congestion": 0.0, "losses": 0.44 } ], "prior": [ { "he": 1, "lmp": 36.54, "energy": 36.24, "congestion": 0.0, "losses": 0.3 }, { "he": 2, "lmp": 34.89, "energy": 34.6, "congestion": 0.0, "losses": 0.29 }, { "he": 3, "lmp": 33.09, "energy": 32.81, "congestion": 0.0, "losses": 0.28 }, { "he": 4, "lmp": 33.9, "energy": 33.62, "congestion": 0.0, "losses": 0.28 }, { "he": 5, "lmp": 33.94, "energy": 33.65, "congestion": 0.0, "losses": 0.29 }, { "he": 6, "lmp": 34.22, "energy": 33.91, "congestion": 0.0, "losses": 0.31 }, { "he": 7, "lmp": 38.61, "energy": 38.33, "congestion": 0.0, "losses": 0.28 }, { "he": 8, "lmp": 43.81, "energy": 43.54, "congestion": 0.0, "losses": 0.27 }, { "he": 9, "lmp": 34.13, "energy": 33.9, "congestion": 0.0, "losses": 0.23 }, { "he": 10, "lmp": 29.85, "energy": 29.66, "congestion": 0.0, "losses": 0.19 }, { "he": 11, "lmp": 27.38, "energy": 27.19, "congestion": 0.0, "losses": 0.19 }, { "he": 12, "lmp": 27.04, "energy": 26.84, "congestion": 0.0, "losses": 0.2 }, { "he": 13, "lmp": 25.43, "energy": 25.27, "congestion": 0.0, "losses": 0.16 }, { "he": 14, "lmp": 25.33, "energy": 25.15, "congestion": 0.0, "losses": 0.18 }, { "he": 15, "lmp": 26.84, "energy": 26.65, "congestion": 0.0, "losses": 0.19 }, { "he": 16, "lmp": 28.69, "energy": 28.49, "congestion": 0.0, "losses": 0.2 }, { "he": 17, "lmp": 39.51, "energy": 39.24, "congestion": 0.0, "losses": 0.27 }, { "he": 18, "lmp": 51.71, "energy": 51.46, "congestion": 0.01, "losses": 0.24 }, { "he": 19, "lmp": 56.65, "energy": 56.37, "congestion": 0.01, "losses": 0.27 }, { "he": 20, "lmp": 51.81, "energy": 51.46, "congestion": 0.01, "losses": 0.34 }, { "he": 21, "lmp": 35.39, "energy": 35.14, "congestion": 0.0, "losses": 0.25 }, { "he": 22, "lmp": 33.37, "energy": 33.04, "congestion": 0.0, "losses": 0.33 }, { "he": 23, "lmp": 31.35, "energy": 31.05, "congestion": 0.0, "losses": 0.3 }, { "he": 24, "lmp": 30.65, "energy": 30.32, "congestion": 0.0, "losses": 0.33 } ], "mean": 42.611666666666665, "priorMean": 35.17208333333333, "change": 21.15195526755358 }, { "id": "4000", "name": "ISO-NE Hub", "today": [ { "he": 1, "lmp": 33.38, "energy": 33.02, "congestion": 0.02, "losses": 0.34 }, { "he": 2, "lmp": 31.46, "energy": 31.09, "congestion": 0.02, "losses": 0.35 }, { "he": 3, "lmp": 30.82, "energy": 30.45, "congestion": 0.02, "losses": 0.35 }, { "he": 4, "lmp": 30.83, "energy": 30.47, "congestion": 0.0, "losses": 0.36 }, { "he": 5, "lmp": 33.64, "energy": 33.28, "congestion": 0.0, "losses": 0.36 }, { "he": 6, "lmp": 35.34, "energy": 35.0, "congestion": 0.0, "losses": 0.34 }, { "he": 7, "lmp": 54.8, "energy": 54.37, "congestion": 0.01, "losses": 0.42 }, { "he": 8, "lmp": 68.99, "energy": 68.71, "congestion": 0.05, "losses": 0.23 }, { "he": 9, "lmp": 64.36, "energy": 64.07, "congestion": 0.04, "losses": 0.25 }, { "he": 10, "lmp": 42.21, "energy": 41.98, "congestion": 0.02, "losses": 0.21 }, { "he": 11, "lmp": 34.11, "energy": 33.91, "congestion": 0.0, "losses": 0.2 }, { "he": 12, "lmp": 29.97, "energy": 29.79, "congestion": 0.0, "losses": 0.18 }, { "he": 13, "lmp": 27.74, "energy": 27.57, "congestion": 0.0, "losses": 0.17 }, { "he": 14, "lmp": 29.5, "energy": 29.32, "congestion": 0.0, "losses": 0.18 }, { "he": 15, "lmp": 32.09, "energy": 31.89, "congestion": 0.0, "losses": 0.2 }, { "he": 16, "lmp": 36.42, "energy": 36.2, "congestion": 0.0, "losses": 0.22 }, { "he": 17, "lmp": 46.42, "energy": 46.1, "congestion": 0.0, "losses": 0.32 }, { "he": 18, "lmp": 56.03, "energy": 55.62, "congestion": 0.0, "losses": 0.41 }, { "he": 19, "lmp": 61.61, "energy": 61.1, "congestion": 0.0, "losses": 0.51 }, { "he": 20, "lmp": 59.74, "energy": 59.25, "congestion": 0.0, "losses": 0.49 }, { "he": 21, "lmp": 61.14, "energy": 60.57, "congestion": 0.0, "losses": 0.57 }, { "he": 22, "lmp": 45.23, "energy": 44.85, "congestion": 0.0, "losses": 0.38 }, { "he": 23, "lmp": 41.23, "energy": 40.83, "congestion": 0.0, "losses": 0.4 }, { "he": 24, "lmp": 33.19, "energy": 32.83, "congestion": 0.0, "losses": 0.36 } ], "prior": [ { "he": 1, "lmp": 36.54, "energy": 36.24, "congestion": 0.0, "losses": 0.3 }, { "he": 2, "lmp": 34.9, "energy": 34.6, "congestion": 0.0, "losses": 0.3 }, { "he": 3, "lmp": 33.1, "energy": 32.81, "congestion": 0.0, "losses": 0.29 }, { "he": 4, "lmp": 33.9, "energy": 33.62, "congestion": 0.0, "losses": 0.28 }, { "he": 5, "lmp": 33.95, "energy": 33.65, "congestion": 0.0, "losses": 0.3 }, { "he": 6, "lmp": 34.22, "energy": 33.91, "congestion": 0.0, "losses": 0.31 }, { "he": 7, "lmp": 38.6, "energy": 38.33, "congestion": 0.0, "losses": 0.27 }, { "he": 8, "lmp": 43.77, "energy": 43.54, "congestion": 0.0, "losses": 0.23 }, { "he": 9, "lmp": 34.1, "energy": 33.9, "congestion": 0.0, "losses": 0.2 }, { "he": 10, "lmp": 29.79, "energy": 29.66, "congestion": 0.0, "losses": 0.13 }, { "he": 11, "lmp": 27.3, "energy": 27.19, "congestion": 0.0, "losses": 0.11 }, { "he": 12, "lmp": 26.96, "energy": 26.84, "congestion": 0.0, "losses": 0.12 }, { "he": 13, "lmp": 25.35, "energy": 25.27, "congestion": 0.0, "losses": 0.08 }, { "he": 14, "lmp": 25.24, "energy": 25.15, "congestion": 0.0, "losses": 0.09 }, { "he": 15, "lmp": 26.77, "energy": 26.65, "congestion": 0.0, "losses": 0.12 }, { "he": 16, "lmp": 28.6, "energy": 28.49, "congestion": 0.0, "losses": 0.11 }, { "he": 17, "lmp": 39.43, "energy": 39.24, "congestion": 0.0, "losses": 0.19 }, { "he": 18, "lmp": 51.73, "energy": 51.46, "congestion": 0.01, "losses": 0.26 }, { "he": 19, "lmp": 56.66, "energy": 56.37, "congestion": 0.01, "losses": 0.28 }, { "he": 20, "lmp": 51.82, "energy": 51.46, "congestion": 0.01, "losses": 0.35 }, { "he": 21, "lmp": 35.43, "energy": 35.14, "congestion": 0.0, "losses": 0.29 }, { "he": 22, "lmp": 33.32, "energy": 33.04, "congestion": 0.0, "losses": 0.28 }, { "he": 23, "lmp": 31.35, "energy": 31.05, "congestion": 0.0, "losses": 0.3 }, { "he": 24, "lmp": 30.66, "energy": 30.32, "congestion": 0.0, "losses": 0.34 } ], "mean": 42.510416666666664, "priorMean": 35.14541666666667, "change": 20.95579082146792 } ], "fuels": [ { "id": "henry", "name": "Henry Hub", "location": "Louisiana", "value": 2.78, "unit": "$/MMBtu", "change": -5.8, "date": "2026-10-26", "period": "Oct 26 delivery", "origin": "SNL Energy, republished by EIA", "kind": "Natural gas spot", "note": "Day-ahead natural gas price for delivery on the EIA page date." }, { "id": "wti", "name": "WTI crude", "location": "Cushing, Oklahoma", "value": 109.72, "unit": "$/bbl", "change": 5.2, "date": "2026-10-23", "period": "Oct 23 close", "origin": "Refinitiv, republished by EIA", "kind": "Crude oil spot", "note": "Wholesale spot price. This is not a front-month futures settlement." }, { "id": "brent", "name": "Brent crude", "location": "Europe", "value": 128.3, "unit": "$/bbl", "change": 2.3, "date": "2026-10-23", "period": "Oct 23 close", "origin": "Refinitiv, republished by EIA", "kind": "Crude oil spot", "note": "Wholesale spot price. This is not a front-month futures settlement." }, { "id": "diesel", "name": "NY Harbor ULSD", "location": "New York Harbor", "value": 5.16, "unit": "$/gal", "change": -2.3, "date": "2026-10-23", "period": "Oct 23 close", "origin": "Refinitiv, republished by EIA", "kind": "Low-sulfur diesel spot", "note": "Wholesale low-sulfur diesel price, not a retail pump price." }, { "id": "algonquin", "name": "Algonquin Citygate", "location": "New England", "value": 1.4, "unit": "$/MMBtu", "change": -19.5, "date": "2026-10-26", "period": "Oct 26 delivery", "origin": "SNL Energy, republished by EIA", "kind": "Natural gas spot", "note": "EIA New England regional natural gas benchmark; distinct from Henry Hub." }, { "id": "heating", "name": "NY Harbor heating oil", "location": "New York Harbor", "value": 4.91, "unit": "$/gal", "change": 1.2, "date": "2026-10-23", "period": "Oct 23 close", "origin": "Refinitiv, republished by EIA", "kind": "Heating oil spot", "note": "Wholesale heating oil price, not a delivered residential heating bill." } ], "sources": [ { "id": "iso", "name": "ISO New England \u00b7 system snapshot & demand", "url": "https://www.iso-ne.com/", "observed": "Capacity: 2026-10-26T11:58:00-04:00. Actual demand through 2026-10-26T13:35:00.000-04:00.", "frequency": "Intraday", "checked": "2026-10-26T17:40:35.353521+00:00", "notes": "Available capacity, forecast peak, surplus and yesterday\u2019s peak are copied as published. Surplus is an ISO-reported measure after operating requirements; it is not calculated as available capacity minus peak demand." }, { "id": "mix", "name": "ISO New England \u00b7 resource mix", "url": "https://www.iso-ne.com/", "observed": "Homepage mix retrieved 2026-10-26T17:40:35.353521+00:00; the source exposes no interval timestamp.", "frequency": "Intraday", "checked": "2026-10-26T17:40:35.353521+00:00", "notes": "MW values are the generation categories reported on the source homepage. Percentages use the sum of these reported categories. Imports and behind-the-meter solar are not added; this is not a complete supply balance. A fuel absent from the feed is not assumed to be zero." }, { "id": "retail", "name": "EIA \u00b7 Electric Power Monthly, Table 5.6.A", "url": "https://www.eia.gov/electricity/monthly/epm_table_grapher.php?t=epmt_5_6_a", "observed": "August 2026 and August 2025. Release: October 23, 2026.", "frequency": "Monthly \u00b7 publication lag", "checked": "2026-10-26T17:40:35.353521+00:00", "notes": "Average retail revenue per kWh by end-use sector; preliminary EIA estimates. It includes the customer electricity cost represented by reported revenues and sales, and is not a utility tariff or a quote for an individual account. Premium = (MA / comparison \u2212 1) \u00d7 100. Year-over-year change compares August 2026 with August 2025." }, { "id": "da", "name": "ISO-NE \u00b7 hourly day-ahead LMPs", "url": "https://www.iso-ne.com/isoexpress/web/reports/pricing/-/tree/lmps-da-hourly", "observed": "Operating day 2026-10-26; comparison 2026-10-25; 24 complete hours per day.", "frequency": "Daily \u00b7 hourly intervals", "checked": "2026-10-26T17:40:35.353521+00:00", "notes": "Summary is the unweighted arithmetic average of 24 hourly LMPs for each location. It is not a Massachusetts load-weighted average. HE 01 covers midnight\u20131 AM; HE 24 covers 11 PM\u2013midnight, Eastern time. The ISO-NE Hub is shown separately from Massachusetts load zones." }, { "id": "da-today", "name": "ISO-NE \u00b7 Oct 26 source CSV", "url": "https://www.iso-ne.com/static-transform/csv/histRpts/da-lmp/WW_DALMP_ISO_20261026.csv", "observed": "Operating day 2026-10-26.", "frequency": "Source file", "checked": "2026-10-26T17:40:35.353521+00:00", "notes": "All 24 hours and all four selected locations were validated against this original file." }, { "id": "da-prior", "name": "ISO-NE \u00b7 Oct 25 source CSV", "url": "https://www.iso-ne.com/static-transform/csv/histRpts/da-lmp/WW_DALMP_ISO_20261025.csv", "observed": "Operating day 2026-10-25.", "frequency": "Source file", "checked": "2026-10-26T17:40:35.353521+00:00", "notes": "Day-over-day change compares the same 24-hour arithmetic averages and the same locations." }, { "id": "fuel", "name": "EIA \u00b7 Today in Energy, Daily Prices", "url": "https://www.eia.gov/TodayinEnergy/prices.php", "observed": "EIA page 2026-10-26; petroleum close 2026-10-23; gas delivery 2026-10-26.", "frequency": "Weekdays \u00b7 daily observations", "checked": "2026-10-26T17:40:35.353521+00:00", "notes": "Spot benchmarks republished by EIA from Refinitiv and SNL Energy. Daily percentage changes are used as published and may reflect rounded source values. Futures values were unavailable on the verified page, so no futures values are substituted." }, { "id": "brand", "name": "TSK Associates \u00b7 official website", "url": "https://tskassociates.com/", "observed": "Official stacked logo downloaded from the TSK website.", "frequency": "Brand reference", "checked": "2026-10-22T12:25:41Z", "notes": "Original TSK logo is retained as downloaded. Arial typography, blue background, white type and orange accents follow the established dashboard." }, { "id": "capacity-eia", "name": "EIA \u00b7 September 2026 generator inventory", "url": "https://www.eia.gov/electricity/data/eia860m/", "observed": "September 2026 preliminary inventory. Released October 23, 2026.", "frequency": "Monthly", "checked": "2026-10-24T12:37:00Z", "notes": "Offshore wind is filtered to Balancing Authority Code ISNE (ISO New England), Technology Offshore Wind Turbine and exact Status (OP) Operating. Massachusetts solar and batteries are filtered by Plant State MA and the same operating status. These are nameplate capacities, not instantaneous dispatch. EIA generally surveys plants with at least 1 MW combined nameplate capacity." }, { "id": "capacity-eia-file", "name": "EIA \u00b7 September generator source workbook", "url": "https://www.eia.gov/electricity/data/eia860m/xls/september_generator2026.xlsx", "observed": "Operating worksheet, September 2026.", "frequency": "Project-level source workbook", "checked": "2026-10-24T12:37:00Z", "notes": "The linked CSV extract retains Plant ID, Generator ID, technology, state, balancing authority, reported status, capacities and source period. The dashboard displays aggregate capacity only." }, { "id": "capacity-eia-prior", "name": "EIA \u00b7 August 2026 comparison workbook", "url": "https://www.eia.gov/electricity/data/eia860m/archive/xls/august_generator2026.xlsx", "observed": "Operating worksheet, August 2026.", "frequency": "Monthly comparison", "checked": "2026-10-24T12:37:00Z", "notes": "Comparable totals use the same geography, technologies, operating status and nameplate fields in each month." }, { "id": "capacity-seia", "name": "SEIA \u00b7 Massachusetts state factsheet", "url": "https://seia.org/media/17877/massachusetts.pdf/", "observed": "September 2026 factsheet: 5.9 GW total solar installed.", "frequency": "Published factsheet", "checked": "2026-10-24T12:37:00Z", "notes": "The headline is retained at the source\u2019s rounded precision and covers statewide solar, including distributed installations. It is not added to the narrower EIA utility-scale inventory. The fact sheet does not state an AC/DC basis for this headline; no conversion is assumed." }, { "id": "capacity-doer", "name": "DOER \u00b7 Energy Storage Initiative reporting", "url": "https://www.mass.gov/info-details/esi-goals-storage-target", "observed": "End of 2025 installed storage: 1,621 MWh, reported by EDCs February 15, 2026.", "frequency": "Annual utility reporting", "checked": "2026-10-24T12:37:00Z", "notes": "This is the installed energy capacity reported by electric distribution companies in their territories. The separate 13,289 MWh pipeline is excluded. Its reporting coverage and date differ from EIA battery capacity; the two figures are not added or treated as a like-for-like change." }, { "id": "capacity-isone", "name": "ISO New England \u00b7 regional resource context", "url": "https://www.iso-ne.com/about/key-stats/resource-mix", "observed": "Regional grid scope for offshore wind.", "frequency": "Reference", "checked": "2026-10-24T12:37:00Z", "notes": "The offshore metric follows the ISO-NE balancing authority rather than Massachusetts geography or procurement contracts. South Fork is excluded because EIA assigns it to NYIS. Commissioning, proposed and construction records are excluded from the operating total. The regular generation chart reports all wind together and does not isolate offshore output." }, { "id": "capacity-hydro", "name": "NECEC \u00b7 large hydropower import capability", "url": "https://www.necleanenergyconnect.org/about-the-project", "observed": "1,200 MW transmission import capability.", "frequency": "Project reference", "checked": "2026-10-27T07:10:10-04:00", "notes": "NECEC is a transmission import resource, not a MA generator or real-time flow observation." }, { "id": "ppa-83c", "name": "MA Clean Energy \u00b7 Section 83c procurement", "url": "https://macleanenergy.com/83c/", "observed": "Long-term contracts filed July 31, 2018.", "frequency": "Procurement filing record", "checked": "2026-10-27T07:10:10-04:00", "notes": "Vineyard Wind 1 is the MA Section 83C PPA project identified here. The 830 MW ISO-NE EIA operating total also includes 30 MW of Block Island Wind, which is not flagged as a MA Section 83C project. This flag does not imply that every ISO-NE offshore project has a Massachusetts PPA." }, { "id": "ppa-83d", "name": "MA Clean Energy \u00b7 Section 83d procurement", "url": "https://macleanenergy.com/83d/", "observed": "Long-term contracts filed July 23, 2018.", "frequency": "Procurement filing record", "checked": "2026-10-27T07:10:10-04:00", "notes": "Large hydro is represented by NECEC import capability, not a Massachusetts generating plant. The capability value is from the project source; the Section 83D record establishes its MA procurement connection. It is distinct from instantaneous imports and regional hydro generation." }, { "id": "ppa-83e", "name": "MA Clean Energy \u00b7 Section 83e procurement", "url": "https://macleanenergy.com/83e/", "observed": "Long-term contracts filed July 2, 2026.", "frequency": "Procurement filing record", "checked": "2026-10-27T07:10:10-04:00", "notes": "As filed, these PPAs purchase environmental attributes only. The July 20, 2026 DPU notice describes agreements submitted for approval; a later approval determination has not been verified in this snapshot. Project power totals 1,118 MW, while the contracted share totals 1,068 MW. These filings are not counted as installed storage and are not added to the separate DOER 1,621 MWh installed total. MW is power; MWh is stored energy." }, { "id": "ppa-83e-notice", "name": "DPU 26-89 \u00b7 storage contract notice", "url": "https://unitil.com/sites/default/files/2026-07/D.P.U.26-89.pdf", "observed": "July 20, 2026 notice for July 2 filings.", "frequency": "DPU filing notice", "checked": "2026-10-27T07:10:10-04:00", "notes": "Environmental attributes only. Contracted share is 700 + 200 + 168 = 1,068 MW, versus project sizes 700 + 250 + 168 = 1,118 MW. Approval status beyond this notice is not verified." } ], "installed": { "checked": "2026-10-24T12:37:00Z", "observationMonth": "2026-09", "mode": "verified-snapshot", "registerUrl": "/energy/sources/capacity-source-register.csv", "historyUrl": "/energy/sources/capacity-history.json", "eia": { "offshore": { "mw": 830.0, "mwh": null, "missingEnergy": null, "generators": 2, "plants": 2 }, "solar": { "mw": 1505.2, "mwh": null, "missingEnergy": null, "generators": 572, "plants": 557 }, "battery": { "mw": 738.7, "mwh": 1598.8, "missingEnergy": 0, "generators": 133, "plants": 131 } }, "history": [ { "period": "2026-08", "totals": { "offshore": { "mw": 830.0, "mwh": null, "missingEnergy": null, "generators": 2, "plants": 2 }, "solar": { "mw": 1505.2, "mwh": null, "missingEnergy": null, "generators": 572, "plants": 557 }, "battery": { "mw": 738.7, "mwh": 1598.8, "missingEnergy": 0, "generators": 133, "plants": 131 } } }, { "period": "2026-09", "totals": { "offshore": { "mw": 830.0, "mwh": null, "missingEnergy": null, "generators": 2, "plants": 2 }, "solar": { "mw": 1505.2, "mwh": null, "missingEnergy": null, "generators": 572, "plants": 557 }, "battery": { "mw": 738.7, "mwh": 1598.8, "missingEnergy": 0, "generators": 133, "plants": 131 } } } ], "sources": [ { "id": "capacity-eia", "name": "EIA \u00b7 September 2026 generator inventory", "url": "https://www.eia.gov/electricity/data/eia860m/", "observed": "September 2026 preliminary inventory. Released October 23, 2026.", "frequency": "Monthly", "checked": "2026-10-24T12:37:00Z", "notes": "Offshore wind is filtered to Balancing Authority Code ISNE (ISO New England), Technology Offshore Wind Turbine and exact Status (OP) Operating. Massachusetts solar and batteries are filtered by Plant State MA and the same operating status. These are nameplate capacities, not instantaneous dispatch. EIA generally surveys plants with at least 1 MW combined nameplate capacity." }, { "id": "capacity-eia-file", "name": "EIA \u00b7 September generator source workbook", "url": "https://www.eia.gov/electricity/data/eia860m/xls/september_generator2026.xlsx", "observed": "Operating worksheet, September 2026.", "frequency": "Project-level source workbook", "checked": "2026-10-24T12:37:00Z", "notes": "The linked CSV extract retains Plant ID, Generator ID, technology, state, balancing authority, reported status, capacities and source period. The dashboard displays aggregate capacity only." }, { "id": "capacity-eia-prior", "name": "EIA \u00b7 August 2026 comparison workbook", "url": "https://www.eia.gov/electricity/data/eia860m/archive/xls/august_generator2026.xlsx", "observed": "Operating worksheet, August 2026.", "frequency": "Monthly comparison", "checked": "2026-10-24T12:37:00Z", "notes": "Comparable totals use the same geography, technologies, operating status and nameplate fields in each month." }, { "id": "capacity-seia", "name": "SEIA \u00b7 Massachusetts state factsheet", "url": "https://seia.org/media/17877/massachusetts.pdf/", "observed": "September 2026 factsheet: 5.9 GW total solar installed.", "frequency": "Published factsheet", "checked": "2026-10-24T12:37:00Z", "notes": "The headline is retained at the source\u2019s rounded precision and covers statewide solar, including distributed installations. It is not added to the narrower EIA utility-scale inventory. The fact sheet does not state an AC/DC basis for this headline; no conversion is assumed." }, { "id": "capacity-doer", "name": "DOER \u00b7 Energy Storage Initiative reporting", "url": "https://www.mass.gov/info-details/esi-goals-storage-target", "observed": "End of 2025 installed storage: 1,621 MWh, reported by EDCs February 15, 2026.", "frequency": "Annual utility reporting", "checked": "2026-10-24T12:37:00Z", "notes": "This is the installed energy capacity reported by electric distribution companies in their territories. The separate 13,289 MWh pipeline is excluded. Its reporting coverage and date differ from EIA battery capacity; the two figures are not added or treated as a like-for-like change." }, { "id": "capacity-isone", "name": "ISO New England \u00b7 regional resource context", "url": "https://www.iso-ne.com/about/key-stats/resource-mix", "observed": "Regional grid scope for offshore wind.", "frequency": "Reference", "checked": "2026-10-24T12:37:00Z", "notes": "The offshore metric follows the ISO-NE balancing authority rather than Massachusetts geography or procurement contracts. South Fork is excluded because EIA assigns it to NYIS. Commissioning, proposed and construction records are excluded from the operating total. The regular generation chart reports all wind together and does not isolate offshore output." }, { "id": "capacity-hydro", "name": "NECEC \u00b7 large hydropower import capability", "url": "https://www.necleanenergyconnect.org/about-the-project", "observed": "1,200 MW transmission import capability.", "frequency": "Project reference", "checked": "2026-10-27T07:10:10-04:00", "notes": "NECEC is a transmission import resource, not a MA generator or real-time flow observation." }, { "id": "ppa-83c", "name": "MA Clean Energy \u00b7 Section 83c procurement", "url": "https://macleanenergy.com/83c/", "observed": "Long-term contracts filed July 31, 2018.", "frequency": "Procurement filing record", "checked": "2026-10-27T07:10:10-04:00", "notes": "Vineyard Wind 1 is the MA Section 83C PPA project identified here. The 830 MW ISO-NE EIA operating total also includes 30 MW of Block Island Wind, which is not flagged as a MA Section 83C project. This flag does not imply that every ISO-NE offshore project has a Massachusetts PPA." }, { "id": "ppa-83d", "name": "MA Clean Energy \u00b7 Section 83d procurement", "url": "https://macleanenergy.com/83d/", "observed": "Long-term contracts filed July 23, 2018.", "frequency": "Procurement filing record", "checked": "2026-10-27T07:10:10-04:00", "notes": "Large hydro is represented by NECEC import capability, not a Massachusetts generating plant. The capability value is from the project source; the Section 83D record establishes its MA procurement connection. It is distinct from instantaneous imports and regional hydro generation." }, { "id": "ppa-83e", "name": "MA Clean Energy \u00b7 Section 83e procurement", "url": "https://macleanenergy.com/83e/", "observed": "Long-term contracts filed July 2, 2026.", "frequency": "Procurement filing record", "checked": "2026-10-27T07:10:10-04:00", "notes": "As filed, these PPAs purchase environmental attributes only. The July 20, 2026 DPU notice describes agreements submitted for approval; a later approval determination has not been verified in this snapshot. Project power totals 1,118 MW, while the contracted share totals 1,068 MW. These filings are not counted as installed storage and are not added to the separate DOER 1,621 MWh installed total. MW is power; MWh is stored energy." }, { "id": "ppa-83e-notice", "name": "DPU 26-89 \u00b7 storage contract notice", "url": "https://unitil.com/sites/default/files/2026-07/D.P.U.26-89.pdf", "observed": "July 20, 2026 notice for July 2 filings.", "frequency": "DPU filing notice", "checked": "2026-10-27T07:10:10-04:00", "notes": "Environmental attributes only. Contracted share is 700 + 200 + 168 = 1,068 MW, versus project sizes 700 + 250 + 168 = 1,118 MW. Approval status beyond this notice is not verified." } ], "items": [ { "id": "offshore", "name": "Offshore wind", "scope": "ISO-NE", "value": 830.0, "unit": "MW", "digits": 0, "date": "Sep 2026 \u00b7 EIA operating inventory", "sourceIds": [ "capacity-eia", "capacity-eia-file", "capacity-isone", "ppa-83c" ], "description": "Operating nameplate capacity in EIA\u2019s September inventory, restricted to offshore wind generators assigned to the ISO-NE balancing authority. A generator\u2019s reported operating status does not establish that every turbine is producing at the same time.", "procurementIds": [ "83c" ], "procurementBadge": "\u00a783C \u00b7 Vineyard Wind 1 PPA" }, { "id": "hydro", "name": "Large hydro", "scope": "ISO-NE import \u00b7 Massachusetts \u00a783D", "value": 1200, "unit": "MW", "digits": 0, "date": "NECEC \u00b7 import capability", "sourceIds": [ "capacity-hydro", "ppa-83d" ], "description": "NECEC\u2019s 1,200 MW transmission import capability for the Massachusetts Section 83D large-hydropower procurement. This is an import resource, not additional local installed generation or current output.", "procurementIds": [ "83d" ], "procurementBadge": "\u00a783D \u00b7 NECEC Hydro PPA", "checked": "2026-10-27T07:10:10-04:00" }, { "id": "solar", "name": "Solar", "scope": "Massachusetts", "value": 5.9, "unit": "GW", "digits": 1, "date": "Sep 2026 \u00b7 SEIA factsheet", "sourceIds": [ "capacity-seia", "capacity-eia" ], "description": "Statewide installed solar capacity as published and rounded by SEIA. EIA\u2019s separate 1,505.2 MW operating solar inventory covers larger surveyed plants and is shown separately for context, not as an additional amount." }, { "id": "storage", "name": "Storage", "scope": "Massachusetts", "value": 1621, "unit": "MWh", "digits": 0, "date": "Year-end 2025 \u00b7 DOER / utilities", "sourceIds": [ "capacity-doer", "capacity-eia", "ppa-83e", "ppa-83e-notice" ], "description": "Installed storage energy capacity reported to DOER by electric distribution companies for the end of 2025. EIA\u2019s separate September 2026 battery inventory provides power (MW) and energy (MWh) for its surveyed plants.", "procurementIds": [ "83e" ], "procurementBadge": "\u00a783E \u00b7 separate contract pipeline" } ], "procurements": [ { "id": "83c", "label": "\u00a783C \u00b7 Offshore wind PPAs", "url": "https://macleanenergy.com/83c/", "dockets": [ "18-76", "18-77", "18-78" ], "filed": "July 31, 2018", "projects": [ { "name": "Vineyard Wind 1", "developer": "Vineyard Wind LLC", "projectMW": 800, "contractedMW": 800, "termYears": null, "basis": "800 MW offshore wind project; long-term contracts filed under Section 83C." } ], "note": "Vineyard Wind 1 is the MA Section 83C PPA project identified here. The 830 MW ISO-NE EIA operating total also includes 30 MW of Block Island Wind, which is not flagged as a MA Section 83C project. This flag does not imply that every ISO-NE offshore project has a Massachusetts PPA." }, { "id": "83d", "label": "\u00a783D \u00b7 Large hydro PPAs", "url": "https://macleanenergy.com/83d/", "dockets": [ "18-64", "18-65", "18-66" ], "filed": "July 23, 2018", "projects": [ { "name": "NECEC Hydro", "developer": "CMP / HQ Energy Services (U.S.)", "projectMW": 1200, "contractedMW": null, "termYears": null, "basis": "1,200 MW NECEC transmission import capability; executed long-term contracts filed for the NECEC 100% Hydro project." } ], "note": "Large hydro is represented by NECEC import capability, not a Massachusetts generating plant. The capability value is from the project source; the Section 83D record establishes its MA procurement connection. It is distinct from instantaneous imports and regional hydro generation." }, { "id": "83e", "label": "\u00a783E \u00b7 Battery contract pipeline", "url": "https://macleanenergy.com/83e/", "noticeUrl": "https://unitil.com/sites/default/files/2026-07/D.P.U.26-89.pdf", "dockets": [ "26-87", "26-88", "26-89" ], "filed": "July 2, 2026", "projects": [ { "name": "Trimount", "developer": "Jupiter Power \u00b7 Everett, MA", "projectMW": 700, "contractedMW": 700, "termYears": 20, "basis": "100% of project environmental attributes; two agreements cover the project." }, { "name": "Energizar", "developer": "Flatiron Energy \u00b7 Chelsea, MA", "projectMW": 250, "contractedMW": 200, "termYears": 12, "basis": "80% of project environmental attributes." }, { "name": "Salt Cod", "developer": "Flatiron Energy \u00b7 Somerset, MA", "projectMW": 168, "contractedMW": 168, "termYears": 20, "basis": "100% of project environmental attributes." } ], "projectMW": 1118, "contractedMW": 1068, "note": "As filed, these PPAs purchase environmental attributes only. The July 20, 2026 DPU notice describes agreements submitted for approval; a later approval determination has not been verified in this snapshot. Project power totals 1,118 MW, while the contracted share totals 1,068 MW. These filings are not counted as installed storage and are not added to the separate DOER 1,621 MWh installed total. MW is power; MWh is stored energy." } ], "procurementChecked": "2026-10-27T07:10:10-04:00" }, "labels": { "day": "Oct 26", "prior": "Oct 25", "retail": "August 2026", "retailPrior": "August 2025", "retailRelease": "October 23, 2026", "fuelPetroleum": "Oct 23", "fuelGas": "Oct 26" }, "refreshNotes": "Capacity figures retain separately dated September 2026 EIA/SEIA and year-end 2025 DOER evidence. October 26 review: EIA September remains latest; SEIA and DOER pages could not be reverified." }