Ask the Grid

Overview

ISO-NE's published Zonal Load 5m source feed. This catalog page exposes the physical schema, coverage, and latest source rows without inventing a normalized grain for publisher-shaped snapshot fields. Use the documented key and event time when comparing revisions or vintages.

Use with MCP

This table is available through the signed-in, read-only Ask the Grid MCP server. Connect a market below, then use search_data or describe_data to load its query contract before calling query_data.

Schema3

Column
Type
event_timeDateTime64(6, 'UTC')
five_min_estimated_zonal_loadNullable(String)
ingested_atDateTime64(6, 'UTC')

Sample rows

event_timefive_min_estimated_zonal_loadingested_at
2026-08-14 05:30:29.436296[{"interval_begin_date": "2026-08-14T01:15:00.000-04:00", "load_zone_id": 4001, "load_zone_name": ".Z.MAINE", "estimated_load_mw": 1227.866, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T01:15:00.000-04:00", "load_zone_id": 4002, "load_zone_name": ".Z.NEWHAMPSHIRE", "estimated_load_mw": 1110.456, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T01:15:00.000-04:00", "load_zone_id": 4003, "load_zone_name": ".Z.VERMONT", "estimated_load_mw": 541.102, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T01:15:00.000-04:00", "load_zone_id": 4004, "load_zone_name": ".Z.CONNECTICUT", "estimated_load_mw": 3108.03, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T01:15:00.000-04:00", "load_zone_id": 4005, "load_zone_name": ".Z.RHODEISLAND", "estimated_load_mw": 921.129, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T01:15:00.000-04:00", "load_zone_id": 4006, "load_zone_name": ".Z.SEMASS", "estimated_load_mw": 1620.605, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T01:15:00.000-04:00", "load_zone_id": 4007, "load_zone_name": ".Z.WCMASS", "estimated_load_mw": 1721.565, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T01:15:00.000-04:00", "load_zone_id": 4008, "load_zone_name": ".Z.NEMASSBOST", "estimated_load_mw": 2801.955, "estimated_btm_pv_mw": 0}]2026-08-14 05:30:29.820845
2026-08-14 05:25:27.831736[{"interval_begin_date": "2026-08-14T01:10:00.000-04:00", "load_zone_id": 4001, "load_zone_name": ".Z.MAINE", "estimated_load_mw": 1228.351, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T01:10:00.000-04:00", "load_zone_id": 4002, "load_zone_name": ".Z.NEWHAMPSHIRE", "estimated_load_mw": 1113.537, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T01:10:00.000-04:00", "load_zone_id": 4003, "load_zone_name": ".Z.VERMONT", "estimated_load_mw": 546.52, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T01:10:00.000-04:00", "load_zone_id": 4004, "load_zone_name": ".Z.CONNECTICUT", "estimated_load_mw": 3108.238, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T01:10:00.000-04:00", "load_zone_id": 4005, "load_zone_name": ".Z.RHODEISLAND", "estimated_load_mw": 925.977, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T01:10:00.000-04:00", "load_zone_id": 4006, "load_zone_name": ".Z.SEMASS", "estimated_load_mw": 1618.841, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T01:10:00.000-04:00", "load_zone_id": 4007, "load_zone_name": ".Z.WCMASS", "estimated_load_mw": 1722.477, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T01:10:00.000-04:00", "load_zone_id": 4008, "load_zone_name": ".Z.NEMASSBOST", "estimated_load_mw": 2811.751, "estimated_btm_pv_mw": 0}]2026-08-14 05:25:28.158211
2026-08-14 05:20:29.025217[{"interval_begin_date": "2026-08-14T01:05:00.000-04:00", "load_zone_id": 4001, "load_zone_name": ".Z.MAINE", "estimated_load_mw": 1237.871, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T01:05:00.000-04:00", "load_zone_id": 4002, "load_zone_name": ".Z.NEWHAMPSHIRE", "estimated_load_mw": 1125.747, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T01:05:00.000-04:00", "load_zone_id": 4003, "load_zone_name": ".Z.VERMONT", "estimated_load_mw": 547.555, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T01:05:00.000-04:00", "load_zone_id": 4004, "load_zone_name": ".Z.CONNECTICUT", "estimated_load_mw": 3164.515, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T01:05:00.000-04:00", "load_zone_id": 4005, "load_zone_name": ".Z.RHODEISLAND", "estimated_load_mw": 935.184, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T01:05:00.000-04:00", "load_zone_id": 4006, "load_zone_name": ".Z.SEMASS", "estimated_load_mw": 1631.239, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T01:05:00.000-04:00", "load_zone_id": 4007, "load_zone_name": ".Z.WCMASS", "estimated_load_mw": 1732.05, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T01:05:00.000-04:00", "load_zone_id": 4008, "load_zone_name": ".Z.NEMASSBOST", "estimated_load_mw": 2823.81, "estimated_btm_pv_mw": 0}]2026-08-14 05:20:29.362686
2026-08-14 05:15:28.132976[{"interval_begin_date": "2026-08-14T01:00:00.000-04:00", "load_zone_id": 4001, "load_zone_name": ".Z.MAINE", "estimated_load_mw": 1244.017, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T01:00:00.000-04:00", "load_zone_id": 4002, "load_zone_name": ".Z.NEWHAMPSHIRE", "estimated_load_mw": 1125.715, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T01:00:00.000-04:00", "load_zone_id": 4003, "load_zone_name": ".Z.VERMONT", "estimated_load_mw": 544.759, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T01:00:00.000-04:00", "load_zone_id": 4004, "load_zone_name": ".Z.CONNECTICUT", "estimated_load_mw": 3164.712, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T01:00:00.000-04:00", "load_zone_id": 4005, "load_zone_name": ".Z.RHODEISLAND", "estimated_load_mw": 935.614, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T01:00:00.000-04:00", "load_zone_id": 4006, "load_zone_name": ".Z.SEMASS", "estimated_load_mw": 1640.035, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T01:00:00.000-04:00", "load_zone_id": 4007, "load_zone_name": ".Z.WCMASS", "estimated_load_mw": 1736.529, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T01:00:00.000-04:00", "load_zone_id": 4008, "load_zone_name": ".Z.NEMASSBOST", "estimated_load_mw": 2826.997, "estimated_btm_pv_mw": 0}]2026-08-14 05:15:28.503737
2026-08-14 05:10:27.082640[{"interval_begin_date": "2026-08-14T00:55:00.000-04:00", "load_zone_id": 4001, "load_zone_name": ".Z.MAINE", "estimated_load_mw": 1246.702, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:55:00.000-04:00", "load_zone_id": 4002, "load_zone_name": ".Z.NEWHAMPSHIRE", "estimated_load_mw": 1129.133, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:55:00.000-04:00", "load_zone_id": 4003, "load_zone_name": ".Z.VERMONT", "estimated_load_mw": 559.336, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:55:00.000-04:00", "load_zone_id": 4004, "load_zone_name": ".Z.CONNECTICUT", "estimated_load_mw": 3174.379, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:55:00.000-04:00", "load_zone_id": 4005, "load_zone_name": ".Z.RHODEISLAND", "estimated_load_mw": 943.624, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:55:00.000-04:00", "load_zone_id": 4006, "load_zone_name": ".Z.SEMASS", "estimated_load_mw": 1655.818, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:55:00.000-04:00", "load_zone_id": 4007, "load_zone_name": ".Z.WCMASS", "estimated_load_mw": 1762.715, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:55:00.000-04:00", "load_zone_id": 4008, "load_zone_name": ".Z.NEMASSBOST", "estimated_load_mw": 2839.664, "estimated_btm_pv_mw": 0}]2026-08-14 05:10:27.358021
2026-08-14 05:05:27.689255[{"interval_begin_date": "2026-08-14T00:50:00.000-04:00", "load_zone_id": 4001, "load_zone_name": ".Z.MAINE", "estimated_load_mw": 1251.445, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:50:00.000-04:00", "load_zone_id": 4002, "load_zone_name": ".Z.NEWHAMPSHIRE", "estimated_load_mw": 1138.992, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:50:00.000-04:00", "load_zone_id": 4003, "load_zone_name": ".Z.VERMONT", "estimated_load_mw": 553.396, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:50:00.000-04:00", "load_zone_id": 4004, "load_zone_name": ".Z.CONNECTICUT", "estimated_load_mw": 3199.387, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:50:00.000-04:00", "load_zone_id": 4005, "load_zone_name": ".Z.RHODEISLAND", "estimated_load_mw": 946.667, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:50:00.000-04:00", "load_zone_id": 4006, "load_zone_name": ".Z.SEMASS", "estimated_load_mw": 1667.761, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:50:00.000-04:00", "load_zone_id": 4007, "load_zone_name": ".Z.WCMASS", "estimated_load_mw": 1764.094, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:50:00.000-04:00", "load_zone_id": 4008, "load_zone_name": ".Z.NEMASSBOST", "estimated_load_mw": 2848.636, "estimated_btm_pv_mw": 0}]2026-08-14 05:05:28.166319
2026-08-14 05:00:30.801637[{"interval_begin_date": "2026-08-14T00:45:00.000-04:00", "load_zone_id": 4001, "load_zone_name": ".Z.MAINE", "estimated_load_mw": 1254.198, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:45:00.000-04:00", "load_zone_id": 4002, "load_zone_name": ".Z.NEWHAMPSHIRE", "estimated_load_mw": 1138.99, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:45:00.000-04:00", "load_zone_id": 4003, "load_zone_name": ".Z.VERMONT", "estimated_load_mw": 553.943, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:45:00.000-04:00", "load_zone_id": 4004, "load_zone_name": ".Z.CONNECTICUT", "estimated_load_mw": 3220.576, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:45:00.000-04:00", "load_zone_id": 4005, "load_zone_name": ".Z.RHODEISLAND", "estimated_load_mw": 947.341, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:45:00.000-04:00", "load_zone_id": 4006, "load_zone_name": ".Z.SEMASS", "estimated_load_mw": 1673.916, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:45:00.000-04:00", "load_zone_id": 4007, "load_zone_name": ".Z.WCMASS", "estimated_load_mw": 1766.053, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:45:00.000-04:00", "load_zone_id": 4008, "load_zone_name": ".Z.NEMASSBOST", "estimated_load_mw": 2861.836, "estimated_btm_pv_mw": 0}]2026-08-14 05:00:31.190491
2026-08-14 04:55:29.552365[{"interval_begin_date": "2026-08-14T00:40:00.000-04:00", "load_zone_id": 4001, "load_zone_name": ".Z.MAINE", "estimated_load_mw": 1258.328, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:40:00.000-04:00", "load_zone_id": 4002, "load_zone_name": ".Z.NEWHAMPSHIRE", "estimated_load_mw": 1150.844, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:40:00.000-04:00", "load_zone_id": 4003, "load_zone_name": ".Z.VERMONT", "estimated_load_mw": 561.423, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:40:00.000-04:00", "load_zone_id": 4004, "load_zone_name": ".Z.CONNECTICUT", "estimated_load_mw": 3237.442, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:40:00.000-04:00", "load_zone_id": 4005, "load_zone_name": ".Z.RHODEISLAND", "estimated_load_mw": 958.378, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:40:00.000-04:00", "load_zone_id": 4006, "load_zone_name": ".Z.SEMASS", "estimated_load_mw": 1689.806, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:40:00.000-04:00", "load_zone_id": 4007, "load_zone_name": ".Z.WCMASS", "estimated_load_mw": 1780.83, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:40:00.000-04:00", "load_zone_id": 4008, "load_zone_name": ".Z.NEMASSBOST", "estimated_load_mw": 2891.044, "estimated_btm_pv_mw": 0}]2026-08-14 04:55:29.916120
2026-08-14 04:50:30.647309[{"interval_begin_date": "2026-08-14T00:35:00.000-04:00", "load_zone_id": 4001, "load_zone_name": ".Z.MAINE", "estimated_load_mw": 1261.648, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:35:00.000-04:00", "load_zone_id": 4002, "load_zone_name": ".Z.NEWHAMPSHIRE", "estimated_load_mw": 1152.022, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:35:00.000-04:00", "load_zone_id": 4003, "load_zone_name": ".Z.VERMONT", "estimated_load_mw": 561.478, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:35:00.000-04:00", "load_zone_id": 4004, "load_zone_name": ".Z.CONNECTICUT", "estimated_load_mw": 3247.806, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:35:00.000-04:00", "load_zone_id": 4005, "load_zone_name": ".Z.RHODEISLAND", "estimated_load_mw": 959.3, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:35:00.000-04:00", "load_zone_id": 4006, "load_zone_name": ".Z.SEMASS", "estimated_load_mw": 1695.213, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:35:00.000-04:00", "load_zone_id": 4007, "load_zone_name": ".Z.WCMASS", "estimated_load_mw": 1779.604, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:35:00.000-04:00", "load_zone_id": 4008, "load_zone_name": ".Z.NEMASSBOST", "estimated_load_mw": 2891.224, "estimated_btm_pv_mw": 0}]2026-08-14 04:50:31.153869
2026-08-14 04:45:27.510902[{"interval_begin_date": "2026-08-14T00:30:00.000-04:00", "load_zone_id": 4001, "load_zone_name": ".Z.MAINE", "estimated_load_mw": 1267.88, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:30:00.000-04:00", "load_zone_id": 4002, "load_zone_name": ".Z.NEWHAMPSHIRE", "estimated_load_mw": 1159.047, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:30:00.000-04:00", "load_zone_id": 4003, "load_zone_name": ".Z.VERMONT", "estimated_load_mw": 566.272, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:30:00.000-04:00", "load_zone_id": 4004, "load_zone_name": ".Z.CONNECTICUT", "estimated_load_mw": 3270.023, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:30:00.000-04:00", "load_zone_id": 4005, "load_zone_name": ".Z.RHODEISLAND", "estimated_load_mw": 966.428, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:30:00.000-04:00", "load_zone_id": 4006, "load_zone_name": ".Z.SEMASS", "estimated_load_mw": 1706.576, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:30:00.000-04:00", "load_zone_id": 4007, "load_zone_name": ".Z.WCMASS", "estimated_load_mw": 1794.403, "estimated_btm_pv_mw": 0}, {"interval_begin_date": "2026-08-14T00:30:00.000-04:00", "load_zone_id": 4008, "load_zone_name": ".Z.NEMASSBOST", "estimated_load_mw": 2913.167, "estimated_btm_pv_mw": 0}]2026-08-14 04:45:27.849180
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Coverage

100.0% complete0 gap days86 days with data
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Coverage: 100.0%Days with data: 86Gaps: 0
2026
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