Castle Solar, LLC — Plant Summary
- EIA Plant ID
- 64740
- Capacity
- 40 MW
- Primary Fuel
- Solar
- Technology
- Solar Photovoltaic
- Status
- Operating
- Location
- Emery, UT
- Operating Since
- 2024
- Generators
- 1
- Operator
- Castle Solar, LLC
- Parent Company
- —
- Annual Generation
- 107,994 MWh
- Capacity Factor
- 30.8%
- Balancing Authority
- PacifiCorp - East
- ISO/RTO
- —
- NERC Region
- WECC
Castle Solar, LLC
OperatingSolar
Ranked #32 of 58 Solar plants in UT#1422 of 7447 nationally
40 MW Solar operating in Emery, UT — PacifiCorp - East
EIAGEM
40 MW
Nameplate Capacity
1
Generators
unit
Solar Photovoltaic
Technology
2024
Operating Since
Location
Coordinates
39.3254, -110.9958
County
Emery, UT
Nearby Plants
- HuntingtonBit. Coal1015.5 MW · 9.3 km
- Hornshadow Solar, LLCSolar100 MW · 16.0 km
- Hornshadow Solar II, LLCSolar200 MW · 16.0 km
Ownership & Operator
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Castle Solar, LLC | DE Shaw Renewable Investments (DESRI) | — |
| Owner(s) | Castle Solar, LLC | DE Shaw Renewable Investments (DESRI) [100%] | — |
| Status | Operating | operating | — |
Ownership Chain
GEM identifies the owner as DE Shaw Renewable Investments (DESRI) [100%]
This entity is not yet in the GEM ownership database — chain unavailable.
About
Castle Solar, LLC is a 40 MW solar photovoltaic power plant located in Emery County, Utah. The plant, identified by plant ID 64740, began operating in 2024 and is owned and operated by Castle Solar, LLC. It utilizes single-axis tracking to maximize solar energy capture. The plant is interconnected to the grid within the PacifiCorp - East balancing authority, which falls under the Western Electricity Coordinating Council (WECC) NERC region.
In its latest year of operation, Castle Solar generated 107,994 MWh of electricity, achieving a capacity factor of 30.8%. According to available data, the plant ranks 31st out of 58 power plants in Utah and 1232nd out of 7108 plants nationally. Financial data is available for the plant from LBNL, though specific metrics like installed cost and PPA price are not provided in this summary.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
PacifiCorp - East
Grid Voltage
69 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
5.2K MWh
Latest Month
108.0K MWh
Annual Generation
30.8%
Capacity Factor
Financial DataBeta
Source: LBNL Utility-Scale SolarHIGH
$35.8/MWh
LCOE (Levelized Cost)
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (10)Beta
General
Gov. Cox opposes outright solar bans, calls for 'thoughtful' project placement | KOAl - Price,UT
By Aidan Mortensen | KOAL News | File photo. Gov. Spencer Cox signaled support during his monthly news conference Thursday for local solar...
Castle Country Radio·5 days ago
General
PacifiCorp to sell its Washington power plants, wind farms. Here’s why lawmakers call it a ‘good thing’ for Utah.
PacifiCorp to sell its Washington power plants, wind farms. Here's why lawmakers call it a 'good thing' for Utah.
Castle Country Radio·4 weeks ago
General
PacifiCorp to sell its Washington power plants, wind farms. Here’s why lawmakers call it a ‘good thing’ for Utah.
PacifiCorp to sell its Washington power plants, wind farms. Here's why lawmakers call it a 'good thing' for Utah.
Castle Country Radio·4 weeks ago
General
PacifiCorp to sell its Washington power plants, wind farms. Here’s why lawmakers call it a ‘good thing’ for Utah.
PacifiCorp to sell its Washington power plants, wind farms. Here's why lawmakers call it a 'good thing' for Utah.
Castle Country Radio·4 weeks ago
Last updated 2026-03-26
View all 10 articles