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Wire · technology

GridStor Secures $220 Million for 400 MWh BESS Project

25 September 2026 · By · Wire by Fusion42

Published

25 September 2026

Topic

technology

◆ Sectors

Climate Tech

◆ Geography

United States

◆ Source

Read at mvapulse.com →

◆ Verified

Fusion42 · 25 September 2026 · Fusion42 review

GridStor secured $220 million financing for its 100 MW/400 MWh White Tank battery energy storage project in Arizona, with a 20-year tolling agreement with Arizona Public Service and commercial operation expected by mid-2027.

This Wire brief sits within Fusion42's coverage of Climate Tech, and 2 sources have reported it between 23 Sep 2026 and 25 Sep 2026.

◆ ◆ The Wire takeaway

Utility-scale battery storage finance just reached a new benchmark with long-term utility contracts now key to closing deals. You gain access to customers needing large storage paired with stable contracts, so start targeting utility partnerships this week.

◆ Coverage

2 sources · first reported 23 Sep 2026 · latest 25 Sep 2026

◆ Related on Wire

◆ Topics

Climate Techbattery-storageutility-scalefinancingrenewable-integrationgrid-stability