Gateway Solar
Worcester County, Maryland · EIA plant ID 61794 · Operator: Constellation Solar MC, LLC
Nameplate8MWSummer 8 MW
Generators2in service
Net generation14GWh12 mo to Dec 2025
Capacity factor22%solar units, summer MW
Heat rate—thermal plants only
First online2019
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), solar 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) |
|---|---|---|---|
| 2019 | 7.9 | 15.2% | — |
| 2020 | 7.7 | 11.6% | — |
| 2021 | 9.6 | 14.4% | — |
| 2022 | 10.6 | 16.0% | — |
| 2023 | 10 | 15.0% | — |
| 2024 | 9.8 | 14.7% | — |
| 2025 | 14.4 | 21.6% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| GTWYN | Solar Photovoltaic | PV | 5 | 5 | Mar 2019 | Operating | — | coming soon |
| GTWYS | Solar Photovoltaic | PV | 2.6 | 2.6 | May 2019 | Operating | — | coming soon |
Owner / operator
Operator: Constellation Solar MC, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Constellation Solar MC, LLC | 100.0% | 8 MW |
Nearby plants
Within 80 km.
| Berlin | 6 MW | 7.4 km |
| Chaberton Solar Greyrock | 2 MW | 12.6 km |
| Chaberton Solar Blue Hen LLC | 4 MW | 13.4 km |
| Chaberton Solar Biggins Creek LLC | 4 MW | 13.8 km |
| Sussex CSG 2 LLC | 3 MW | 16.3 km |
| DEL022-30423B Thorogoods Rd, LLC | — | 21.4 km |