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171.2 MW Conventional Steam Coal (100 MW) + Petroleum Liquids (21 MW) + Wood/Wood Waste Biomass (50 MW) out of service in Rockingham, NH — ISO New England Inc.
171.2 MW
Nameplate Capacity
4
Generators
units
Hybrid (3)
Technology
Conventional Steam Coal + Petroleum Liquids + Wood/Wood Waste Biomass
1952
Operating Since
Coordinates
43.0978, -70.7842
County
Rockingham, NH
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Granite Shore Power | Granite Shore Power | — |
| Owner(s) | Granite Shore Power | Atlas Holdings | — |
| Status | Out of service | retired | — |
The Schiller plant, located in Rockingham County, New Hampshire, has a total capacity of 171.2 MW across four generators. The plant began operating in 1952 and is owned by Atlas Holdings, with Granite Shore Power serving as the operator. The primary fuel source is bituminous coal (BIT), but the plant also utilizes petroleum liquids and wood/wood waste biomass. As a hybrid plant employing multiple fuel sources, Schiller uses conventional steam coal technology.
Schiller operates within the ISO New England Inc. balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region. The plant's latest annual generation was 697 MWh, resulting in a capacity factor of 0.0%. Schiller is ranked as the second-largest power plant in New Hampshire and 49th out of 50 nationally.
Generated from EIA, GEM, and public data sources
ISO/RTO
ISO-NE
Market
ISO/RTO Member
NERC Region
NPCC — Northeast Power Coordinating Council
Balancing Authority
ISO New England Inc. (ISNE)
Grid Voltage
115.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
0 MWh
Latest Month
697 MWh
Annual Generation
0.0%
Capacity Factor
CO₂ Intensity
0 lb/MWh
Low-utilization plant — per-MWh rate is dominated by startup/standby emissions; not directly comparable to baseload averages.
NOx
18 lb/MWh
SO₂
0.000 lb/MWh
CH₄
0.105 lb/MWh
N₂O
0.021 lb/MWh
Capacity Factor
0.0%
Annual Net Gen
1 GWh
CO₂eq
9 lb/MWh
Subregion
NPCC New England
No financial data available for this plant.
This is a small open-data project — if you have sources or want more coverage here, drop a note.
Point of Interconnection
Nearest Substation
Schiller Substation · 115 kV
Substation Distance
< 10 km
Operator
Eversource
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ISO-NE
LMP Node
4002 Z_NewHampshire
Pricing Hub
.Z.NEWHAMPSHIRE
Node Source
EIA-860 direct report
Last updated 2026-03-26
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