All industries › States › Arizona › Maricopa County
Arizona · Utility solar · Battery storage
Maricopa County, Arizona
9 utility solar and 7 battery storage projects are in development in Maricopa County, 6 of them under construction, with 57 more already operating. The solar and battery storage projects in development add up to 4,761 MW. Who is building each one, and who to call, is in the app.
By industry
What is in development in Maricopa County, and each industry’s page for Arizona.
Next to break ground
Projects here among the ones in Arizona most likely to start work next.
- Romero Energy Center IIMaricopa CountyUnder construction · 225 MW · start est. 2026 Q4Builder: not yet named
- Maricopa SolarMaricopa CountyUnder construction · 550 MW · permit filed Jan 2025Builder: in the app
In development
Every project in development in Maricopa County.
Nearest to work first: under construction, then pre-construction, financed, permitted and queued. A project on a county line is listed in each county.
| Project | Stage | Size |
|---|---|---|
| Maricopa SolarBattery storage | Under construction | 550 MW |
| Romero Energy CenterBattery storage | Under construction | 225 MW |
| Romero Energy Center IIBattery storage | Under construction | 225 MW |
| AgaveBattery storage | Under construction | 150 MW |
| Desert BloomBattery storage | Under construction | 150 MW |
| White Tank Energy StorageBattery storage | Under construction | 100 MW |
| VULCANUtility solar | Permitted | 250 MW |
| StanleyUtility solar | Queued | 1,039 MW |
| Domestic ChickenUtility solar | Queued | 559 MW |
| HARQUAHALA FLATS 2Utility solar | Queued | 411 MW |
| HARQUAHALA SUNRISEUtility solar | Queued | 309 MW |
| Desert Sand BESSUtility solar | Queued | 300 MW |
| HARQUAHALA SUNRISE 2Utility solar | Queued | 169 MW |
| Mesquite Solar 6Utility solar | Queued | 154 MW |
| Sierra Luna Energy StorageBattery storage | Queued | 150 MW |
| AGUA CALIENTE SOLAR 2Utility solar | Queued | 20 MW |
Builders, developers, construction starts and the people to call, for every project here.
Request access57 operating projects in Maricopa County
- Maricopa SolarUtility solar · 550 MW
- Sonoran Solar EnergyUtility solar · 490 MW
- Harquahala 2Utility solar · 300 MW
- Papago Energy StorageBattery storage · 300 MW
- Sun Streams 4Utility solar · 300 MW
- Beehive Energy StorageBattery storage · 250 MW
- Pediment BESS IBattery storage · 250 MW
- Sierra Estrella Energy StorageBattery storage · 250 MW
- Sun Streams 3Utility solar · 215 MW
- Catclaw SolarUtility solar · 200 MW
- WestwingBattery storage · 200 MW
- Scatter Wash 1Battery storage · 170 MW
- MESQUITE SOLAR 1 (FKA MESQUITE GENERATION)Utility solar · 165 MW
- Sun Streams, LLCUtility solar · 160 MW
- MESQUITE SOLAR 3Utility solar · 152 MW
- AgaveUtility solar · 150 MW
- Harquahala Sun Solar ProjectUtility solar · 150 MW
- Justice Energy StorageBattery storage · 150 MW
- Papago PVUtility solar · 150 MW
- SUN STREAMS SOLAR 2Utility solar · 150 MW
- Arlington Valley Solar Energy IIUtility solar · 129 MW
- Arlington Valley Solar Energy IUtility solar · 127 MW
- MESQUITE SOLAR 2Utility solar · 101 MW
- Superstition Energy StorageBattery storage · 90 MW
- Scatter Wash 2Battery storage · 85 MW
- Sun PondUtility solar · 85 MW
- Pluto Energy StorageBattery storage · 75 MW
- Mesquite Solar 5, LLCUtility solar · 60 MW
- MESQUITE SOLAR 4Utility solar · 52 MW
- El Sol BESSBattery storage · 50 MW
- Red RockUtility solar · 44 MW
- Gila Bend HybridUtility solar · 36 MW
- Queen Creek Solar FarmUtility solar · 19 MW
- Cotton Center Solar HybridUtility solar · 17 MW
- Paloma Solar HybridUtility solar · 17 MW
- Badger 1Utility solar · 15 MW
- RE Gillespie 1 LLCUtility solar · 15 MW
- Saddle Mountain Solar IUtility solar · 15 MW
- Luke SolarUtility solar · 11 MW
- AES ES GILBERTBattery storage · 10 MW
- Desert Star HybridUtility solar · 10 MW
- Lake Pleasant WTPUtility solar · 6 MW
- Mesa Carport PVUtility solar · 5 MW
- Intel - Ocotillo Campus SolarUtility solar · 4 MW
- Buckeye Union HS District 201Utility solar · 3 MW
- Macys GoodyearUtility solar · 3 MW
- TJX PhoenixUtility solar · 3 MW
- Amazon GoodyearUtility solar · 2 MW
- AZ State University - Tempe Campus SolarUtility solar · 2 MW
- Estrella Mountain PVUtility solar · 2 MW
- Gilbert Solar Facility I, LLCUtility solar · 2 MW
- Phoenix Airport Rental Car CenterUtility solar · 2 MW
- Jewish Community Center PVUtility solar · 1 MW
- Paradise Valley H.S. PVUtility solar · 1 MW
- Phoenix Airport East Economy LotUtility solar · 1 MW
- T0588 Phoenix - AZUtility solar · 1 MW
- Agua FriaUtility solar · 0 MW
Nearby in Arizona
Also in Arizona
Questions
Maricopa County, in short.
How many projects are in development in Maricopa County, Arizona?
9 utility solar and 7 battery storage projects are in development in Maricopa County, 6 of them under construction, with 57 more already operating.
Which projects in Maricopa County, Arizona are under construction?
Maricopa Solar (550 MW), Romero Energy Center (225 MW), Romero Energy Center II (225 MW), Agave (150 MW), Desert Bloom (150 MW) and 1 more.
Where does the Maricopa County data come from?
From the public records read daily for Arizona: grid interconnection queues, construction permits, county records, state siting and procurement filings, and satellite imagery. Locations are shown to a tenth of a degree; builders, developers, construction starts and work contacts are in the subscriber record.
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