M&AClosedSeptember 18, 2025

White Tank BESS — 100 MW / 400 MWh, Maricopa County, Arizona

GridStor acquires 100 MW/400 MWh White Tank BESS from Strata Clean Energy. 20-year tolling agreement with Arizona Public Service (APS). Expected in service H1 2027. GridStor's 4th acquisition in 12 months, 2nd in Arizona.

100MW

Capacity

400MWh

Storage

BESS

Technology

AZ

Location

Deal Details

Deal Type
Project M&A
Seller / Sponsor
Strata Clean Energy
Buyer / Financier
GridStor
Deal Value
Undisclosed
Stage
Development
ISO/RTO
Western

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