Onyx - Allen Harim
Solar power plant · Sussex County, Delaware
Nameplate capacity
1.2 MW
Rank in Delaware
#39
of 39 plants
In service since
2017
April 2017
Details
- Primary fuel
- Solar
- Technology
- Solar Photovoltaic
- Operator
- Onyx Asset Services Group
- County
- Sussex County
- Generating units
- 1
- Share of state capacity
- 0.04%
- Rank among solar plants in Delaware
- #21 of 21
- EIA plant code
- 61206
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 10021 | Solar Photovoltaic | 1.2 MW | 1.2 MW | 2017 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Delaware
| DG AMP Solar Smyrna | Solar | 1.2 MW |
| Kent County Wastewater Treatment Solar | Solar | 1.2 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 1.2 MW solar plant and a 1.2 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Delaware power plants · What Delaware actually generates