White Tank Reliability Project
Building Energy Reliability in Maricopa County
At every stage, from technology selection and engineering to construction, operation, and emergency preparedness, GridStor prioritizes the safety of our facilities and our neighbors.
Committed to Maricopa County
The White Tank Project will help power economic growth in Maricopa County using battery energy storage, similar to the 255 MW facility in Phoenix – built by the same construction company as GridStor is working with – and the 300 MW facility near Tonopah.
The White Tank Project has been carefully sited adjacent to existing local electric infrastructure and the communities that need it most. Once operating, the facility will increase regional grid resilience and reduce the risk of blackouts during periods of high electric demand.
GridStor is working closely via its existing service agreement with Rural Metro Fire on facility design, construction, and emergency response training before operations begin.
Construction vehicles will access the site via W. Indian School Road. Traffic control will be implemented on W. Indian School Road to maintain safe access in and out of the project site and minimize road delays during construction.
Project Key Facts
100-Megawatt (MW)
outdoor battery energy storage system
80,000 households
daily power equivalent during hours of greatest electric system demand
Careful Siting
on industrially zoned land and immediately east of Arizona Public Service Company’s Colter substation
9-acre project site
consisting of battery enclosures and substations, buffered within a 50+ acre property
2027
Expected to begin commercial operations first half 2027
50 estimated full-time jobs
during construction in an emerging technical industry created for skilled tradespeople and apprentices
$ hundreds of thousands
contributed in estimated local sales and use tax revenue
Over $5 Million
in property taxes benefiting Maricopa County and Agua Fria High School
The GridStor Guarantee
Our team of engineers, developers, safety experts, construction managers and company leaders has over 100,000 megawatts of combined experience in developing, building, and operating power generation and storage projects. Our quiet, emission-free facilities can sit next to businesses, residences, and playgrounds without disturbing neighbors. Our projects create local construction jobs and make significant financial contributions to the local tax base, supporting budgets for roads, schools, and emergency services where we operate.
Safety is our #1 priority
From technology selection and design standards to emergency preparedness, GridStor is committed to the safety of our communities, employees, contractors, partners, and neighbors.
Battery Energy Storage Explained
Held to the highest safety standards
Certified, Tier 1 Technology
