Atlas IX — Plant Summary
- EIA Plant ID
- 68324
- Capacity
- 150 MW
- Primary Fuel
- Battery Storage
- Technology
- Batteries
- Status
- Under construction
- Location
- La Paz, AZ
- Operating Since
- —
- Generators
- 1
- Operator
- Atlas IX LLC
- Parent Company
- —
- Balancing Authority
- California Independent System Operator
- ISO/RTO
- CAISO
- NERC Region
- WECC
Atlas IX
Under constructionBESS
Ranked #35 of 55 BESS plants in AZ#256 of 837 nationally
150 MW BESS under construction in La Paz, AZ — California Independent System Operator
EIA
150 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
—
Operating Since
Location
Coordinates
33.5829, -113.5769
County
La Paz, AZ
Nearby Plants
- Atlas VIIBESS300 MW · 0.0 km
- ATLAS IISolar100 MW · 0.0 km
- ATLAS SOLAR IVSolar300 MW · 0.0 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Atlas IX LLC | — | — |
| Owner(s) | Atlas IX LLC | — | — |
| Status | Under construction | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
Atlas IX is a 150 MW battery energy storage system located in La Paz County, Arizona. The plant, identified by the EIA plant code 68324, is owned and operated by Atlas IX LLC. It consists of a single generator utilizing battery technology and is interconnected with the California Independent System Operator (CAISO) balancing authority within the Western Electricity Coordinating Council (WECC) region.
The plant's primary fuel source is electricity (MWH), which it uses to charge its batteries. Atlas IX is ranked as the 42nd largest power plant in Arizona out of 47, and nationally it is ranked 401st out of 514. Recent news coverage indicates three articles related to deals involving the plant.
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
Generation
−146 MWh
Net Charging
—
Annual Net Energy
—
Capacity Factor
Positive values indicate net discharge (generation exceeds station load). Negative values indicate net charging. Pure battery storage plants are typically net negative due to round-trip efficiency losses.
Financial Data
No financial data available for this plant.
Pricing & Market Data
UNKNOWN confidenceMarket Position
ISO/RTO Market
CAISO
LMP Node
—
Pricing Hub
TH_SP15_GEN-APND
Node Source
Plant coordinates only
News & Articles (3)Beta
Deals·debt financing
TransGrid Energy secures US$1.4 billion for two Arizona BESS totalling 450MW/1,800MWh
TransGrid Energy has successfully secured over US$1.4 billion in financing for two battery energy storage (BESS) projects located in Arizona, US.
TransGrid Energy (developer)
Energy-Storage.News·1 years ago
Deals·debt financing
TransGrid Secures $1.4 Billion Financing for Battery Storage Projects in Arizona
TransGrid Energy LLC, a key player in utility-scale renewable energy under Hanwha FutureProof, has successfully secured over $1.4 billion in financing.
TransGrid Energy LLC (developer)Hanwha FutureProof (other)
SolarQuarter·1 years ago
Deals·debt financing
TransGrid Energy secures $1.4 billion in financing
The capital raised will fund the development of two new stand-alone battery storage projects in Arizona.
TransGrid Energy (developer)
Hanwha Group·1 years ago
Last updated 2026-03-26
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