Ameresco Delaware South
Sussex County, Delaware · EIA plant ID 56429 · Operator: AMERESCO Delaware South
Nameplate5MWSummer 5 MW
Generators5in service
Net generation23GWh12 mo to Dec 2025
Capacity factor52%other units, summer MW
Heat rate—thermal plants only
First online2006
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) |
|---|---|---|---|
| 2006 | 0.4 | 14.0% | — |
| 2007 | 30.8 | 88.0% | — |
| 2008 | 32.5 | 92.5% | — |
| 2009 | 23.2 | 66.2% | — |
| 2010 | 32.3 | 79.0% | — |
| 2011 | 38.2 | 87.3% | — |
| 2012 | 38.1 | 86.7% | — |
| 2013 | 34.9 | 79.8% | — |
| 2014 | 31 | 70.7% | — |
| 2015 | 29.7 | 67.7% | — |
| 2016 | 23 | 52.3% | — |
| 2017 | 26.1 | 59.5% | — |
| 2018 | 22.6 | 51.6% | — |
| 2019 | 28.9 | 65.9% | — |
| 2020 | 30.1 | 68.5% | — |
| 2021 | 32.2 | 73.4% | — |
| 2022 | 27.9 | 63.7% | — |
| 2023 | 29.6 | 67.6% | — |
| 2024 | 3.4 | 7.7% | — |
| 2025 | 22.6 | 51.7% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Landfill Gas | IC | 1 | 1 | Dec 2006 | Operating | — | coming soon |
| 2 | Landfill Gas | IC | 1 | 1 | Dec 2006 | Operating | — | coming soon |
| 3 | Landfill Gas | IC | 1 | 1 | Dec 2006 | Operating | — | coming soon |
| 4 | Landfill Gas | IC | 1 | 1 | Dec 2006 | Operating | — | coming soon |
| 5 | Landfill Gas | IC | 1 | 1 | May 2010 | Operating | — | coming soon |
Owner / operator
Operator: AMERESCO Delaware South. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| AMERESCO Delaware South | 100.0% | 5 MW |
Nearby plants
Within 80 km.
| Bruce A Henry Solar Farm | 4 MW | 7.8 km |
| DEC Phase II at Georgetown | 3 MW | 7.9 km |
| NL DE Taylor CSG | 3 MW | 9.7 km |
| SU165 | 2 MW | 12.6 km |
| DEL022-30423B Thorogoods Rd, LLC | — | 15.1 km |
| Indian River Generating Station | 19 MW | 17.5 km |