Overview
ISO-NE's published Monthly 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-06-01 04:00:00.000000 | 4008 | .Z.NEMASSBOST | ∅ | 57.11 | 45.57 | 51.21 | 56.29 | 46.79 | 51.43 | 2026-08-01 07:00:14.199443 |
Coverage
3.3% complete2,798 gap days95 days with data
Show coverage history ▾
Coverage: 3.3%Days with data: 95Gaps: 2,798
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