Overview
ISO-NE's published Weekly LMP Index 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.
Schema11
Column
Type
event_timeDateTime64(6, 'UTC')location_idLowCardinality(String)location_nameNullable(String)location_typeNullable(String)da_on_peak_lmpNullable(Float64)da_off_peak_lmpNullable(Float64)da_average_lmpNullable(Float64)rt_on_peak_lmpNullable(Float64)rt_off_peak_lmpNullable(Float64)rt_average_lmpNullable(Float64)ingested_atDateTime64(6, 'UTC')Sample rows
| event_time | location_id | location_name | location_type | da_on_peak_lmp | da_off_peak_lmp | da_average_lmp | rt_on_peak_lmp | rt_off_peak_lmp | rt_average_lmp | ingested_at |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-07-27 04:00:00.000000 | 4008 | .Z.NEMASSBOST | ∅ | 50.79 | 48.39 | 49.53 | 55.63 | 55.36 | 55.49 | 2026-08-11 06:00:08.709239 |
| 2026-07-20 04:00:00.000000 | 4008 | .Z.NEMASSBOST | ∅ | 50.1 | 41.12 | 45.39 | 52.95 | 40.06 | 46.2 | 2026-07-28 06:00:11.405300 |
| 2026-07-13 04:00:00.000000 | 4008 | .Z.NEMASSBOST | ∅ | 86.04 | 46.71 | 65.44 | 47.63 | 37.11 | 42.12 | 2026-07-21 06:00:07.941340 |
| 2026-06-29 04:00:00.000000 | 4008 | .Z.NEMASSBOST | ∅ | 175.64 | 61.16 | 115.67 | 100.72 | 51.69 | 75.04 | 2026-07-14 06:01:00.456982 |
Coverage
14.1% complete2,532 gap days416 days with data
Show coverage history ▾
Coverage: 14.1%Days with data: 416Gaps: 2,532
2026
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