Blythe Mesa Solar II — Plant Summary
- EIA Plant ID
- 65053
- Capacity
- 335.6 MW
- Primary Fuel
- Solar
- Technology
- Batteries, Solar Photovoltaic
- Status
- Operating
- Location
- Riverside, CA
- Operating Since
- 2022
- Generators
- 2
- Operator
- Blythe Mesa Solar II, LLC
- Parent Company
- —
- Annual Generation
- 585,497 MWh
- Capacity Factor
- 19.9%
- Balancing Authority
- California Independent System Operator
- ISO/RTO
- CAISO
- NERC Region
- WECC
Blythe Mesa Solar II
OperatingBESSSolarHybrid
Ranked #20 of 963 Solar plants in CA#101 of 7447 nationally
335.6 MW Batteries (112 MW) + Solar Photovoltaic (224 MW) operating in Riverside, CA — California Independent System Operator
EIAGEMWD
335.6 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2022
Operating Since
Location
Coordinates
33.6027, -114.7068
County
Riverside, CA
Nearby Plants
- Blythe Energy IncNatural Gas591 MW · 2.4 km
- Solar Blythe 2Solar20 MW · 2.5 km
- Solar Blythe LLCSolar21 MW · 3.7 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 | Blythe Mesa Solar II, LLC | Intersect Power | — |
| Owner(s) | Blythe Mesa Solar II, LLC | Intersect Power | — |
| Status | Operating | operating | — |
Ownership Chain
GEM identifies the owner as Intersect Power
This entity is not yet in the GEM ownership database — chain unavailable.
About
Blythe Mesa Solar II is a hybrid solar and battery storage power plant located in Riverside County, California. The plant, owned and operated by Blythe Mesa Solar II, LLC, has a total capacity of 335.6 MW and began operating in 2022. It utilizes both solar photovoltaic technology with single-axis tracking and battery energy storage systems (BESS). The BESS component has a storage capacity of 448 MWh, providing 4 hours of duration and employing lithium-ion battery chemistry (LIB). The plant ranks 26th out of 112 solar plants in California and 120th out of 514 nationally.
The plant operates within the California Independent System Operator (CAISO) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. In its most recent year of operation, Blythe Mesa Solar II generated 585,497 MWh, achieving a capacity factor of 19.9%. Financial data indicates that the plant has a power purchase agreement (PPA) price of $11.5 per MWh.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
California Independent System Operator
Grid Voltage
220 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
30.6K MWh
Latest Month
585.5K MWh
Annual Generation
19.9%
Capacity Factor
Jan 2023 – Dec 2025
Financial DataBeta
Source: FERC Electric Quarterly Reports, LBNL Utility-Scale SolarHIGH
$11.5/MWh
PPA Price
Blythe Mesa Solar II, LLC
Contract Seller
Per-Unit Cost Trends
Pricing & Market Data
HIGH confidenceMarket Position
ISO/RTO Market
CAISO
LMP Node
CENTPD_2_BMSSX2-APND
Pricing Hub
TH_SP15_GEN-APND
Location Type
Aggregated Node
Node Source
EIA-860 direct report
News & Articles (2)Beta
Industry·other
Athos III Solar + Storage Project in California, the US
The Athos III Solar + Storage Project, also known as Blythe Mesa Solar II, is an operational renewable project located in the US state of California.
Athos III Solar + Storage Project (other)Blythe Mesa Solar II (other)
NS Energy·3 years ago
Industry·corporate
Intersect Power Reaches Commercial Operation of 310 MWp Athos III Solar + Storage Project in California
PRNewswire/ -- Intersect Power, LLC, ("Intersect Power" or "Intersect"), announced the commercial operation of its Athos III solar project...
Intersect Power (operator)Athos III solar project (other)
PR Newswire·3 years ago
Last updated 2026-03-14
View all articles