Sun Streams 2 — Plant Summary
- EIA Plant ID
- 63440
- Capacity
- 150 MW
- Primary Fuel
- Solar
- Technology
- Solar Photovoltaic
- Status
- Operating
- Location
- Maricopa, AZ
- Operating Since
- 2021
- Generators
- 1
- Operator
- Sun Streams 2, LLC
- Parent Company
- —
- Annual Generation
- 328,214 MWh
- Capacity Factor
- 24.9%
- Balancing Authority
- California Independent System Operator
- ISO/RTO
- CAISO
- NERC Region
- WECC
Sun Streams 2
OperatingSolar
Ranked #19 of 104 Solar plants in AZ#520 of 7447 nationally
150 MW Solar operating in Maricopa, AZ — California Independent System Operator
EIAGEMWD
150 MW
Nameplate Capacity
1
Generators
unit
Solar Photovoltaic
Technology
2021
Operating Since
Location
Coordinates
33.3220, -112.8178
County
Maricopa, AZ
Nearby Plants
- Sun Streams 3BESS430 MW · 1.2 km
- AgaveBESS300 MW · 2.0 km
- Arlington Valley Solar Energy IISolar129 MW · 2.4 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 | Sun Streams 2, LLC | Longroad Energy | — |
| Owner(s) | Sun Streams 2, LLC | Longroad Energy [100%] | — |
| Status | Operating | operating | — |
Ownership Chain
GEM identifies the owner as Longroad Energy [100%]
This entity is not yet in the GEM ownership database — chain unavailable.
About
Sun Streams 2 is a 150 MW solar photovoltaic power plant located in Maricopa County, Arizona. The plant, which began operating in 2021, is owned and operated by Sun Streams 2, LLC. It consists of a single generator utilizing single-axis tracking technology to maximize solar energy capture. The plant is interconnected to the California Independent System Operator (CAISO) balancing authority within the Western Electricity Coordinating Council (WECC) NERC region.
In its most recent year of operation, Sun Streams 2 generated 328,214 MWh of electricity, achieving a capacity factor of 24.9%. The plant ranks as the 13th largest solar facility in Arizona (out of 23) and 394th nationally (out of 639). Financial data is available for the plant, sourced from Lawrence Berkeley National Laboratory (LBNL) solar energy research.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
California Independent System Operator
Grid Voltage
500 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Interconnection Queue1 projectBeta
OperationalSolar150 MWWest
Generation
20.2K MWh
Latest Month
328.2K MWh
Annual Generation
24.9%
Capacity Factor
Jan 2023 – Dec 2025
Financial DataBeta
Source: LBNL Utility-Scale SolarHIGH
$34.7/MWh
LCOE (Levelized Cost)
$9.8/MWh
Energy Value
Pricing & Market Data
MEDIUM confidenceMarket Position
ISO/RTO Market
CAISO
LMP Node
RWP_GNODERHCC1ST
Pricing Hub
TH_SP15_GEN-APND
Location Type
Pricing Node
Node Source
Curated node match
News & Articles (10)Beta
General
Sun Streams 4 Solar and Storage Project, Arizona, USA
Sun Streams 4 is a 377MW solar and 300MW/1200MWh battery energy storage system (BESS) project, currently under construction in Arizona, US.
Power Technology·1 years ago
Industry·corporate
Sun Streams 4 Solar and Storage Project, Arizona, USA
Sun Streams 4 is a 377MW solar and 300MW/1200MWh battery energy storage system (BESS) project, currently under construction in Arizona, US.
Sun Streams 4 (operator)
Power Technology·1 years ago
General
Sun Streams 4 Solar and Storage Project, Arizona, USA
Sun Streams 4 is a 377MW solar and 300MW/1200MWh battery energy storage system (BESS) project, currently under construction in Arizona, US.
Power Technology·1 years ago
Industry·corporate
6,000-acre solar energy and storage facility opens near Buckeye
A 6000-acre solar energy and storage facility is now operational in the far West Valley near Buckeye. Here's what to know.
The Arizona Republic·1 years ago
Last updated 2026-03-26
View all 10 articles