Wheelabrator Concord Facility
Merrimack County, New Hampshire · EIA plant ID 50873 · Operator: Wheelabrator Environmental Systems
Nameplate14MWSummer 12 MW
Generators1in service
Net generation93GWh12 mo to Aug 2026
Capacity factor88%other units, summer MW
Heat rate—thermal plants only
First online1989
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), other units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 105.5 | 86.0% | — |
| 2002 | 105 | 85.6% | — |
| 2003 | 103.7 | 84.5% | — |
| 2004 | 105.1 | 85.5% | — |
| 2005 | 100.3 | 81.8% | — |
| 2006 | 102.9 | 83.9% | — |
| 2007 | 100.9 | 96.0% | — |
| 2008 | 101.9 | 96.7% | — |
| 2009 | 103.1 | 98.1% | — |
| 2010 | 101.7 | 96.8% | — |
| 2011 | 101.1 | 96.2% | — |
| 2012 | 103 | 97.7% | — |
| 2013 | 102.4 | 97.5% | — |
| 2014 | 101.3 | 96.4% | — |
| 2015 | 101.5 | 96.5% | — |
| 2016 | 100 | 94.9% | — |
| 2017 | 99.4 | 94.5% | — |
| 2018 | 97.3 | 92.6% | — |
| 2019 | 99.3 | 94.5% | — |
| 2020 | 101.1 | 95.9% | — |
| 2021 | 100.6 | 95.7% | — |
| 2022 | 90.7 | 86.2% | — |
| 2023 | 92.9 | 88.4% | — |
| 2024 | 93.2 | 88.4% | — |
| 2025 | 94.5 | 89.9% | — |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| GEN1 | Municipal Solid Waste | ST | 14 | 12 | Apr 1989 | Operating | — | coming soon |
Owner / operator
Operator: Wheelabrator Environmental Systems. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Wheelabrator Environmental Systems | 100.0% | 14 MW |
Nearby plants
Within 80 km.
| Penacook Lower Falls | 5 MW | 1.5 km |
| Penacook Upper Falls Hydro | 3 MW | 2 km |
| Rolfe Canal Hydro | 4 MW | 2.6 km |
| Garvins Falls | 12 MW | 14.5 km |
| Clement Dam Hydro LLC | 2 MW | 17.2 km |
| EHC West Hopkinton | 1 MW | 17.6 km |