Daily Brief : June 16: GM bets sodium-ion, NRC extends nuclear

HEADLINE

GM Ventures invests in Peak Energy's sodium-ion grid storage as NRC clears the path for Cooper Nuclear Station to run through 2054.

THE BIG PICTURE

America's energy infrastructure is being extended and rebuilt in parallel. The NRC opened scoping today for a 20-year license extension that would run a 1970s boiling-water reactor to 2054, while GM's venture arm is backing a sodium-ion battery startup that sidesteps Chinese lithium-ion dominance in grid storage. Both moves reflect a single bet: that domestic manufacturing and supply-chain control matter more than speed to market, especially as data-center demand for grid power accelerates.

WHAT HAPPENED

GM Ventures announced on June 9 a strategic investment and partnership with Burlingame-based Peak Energy to develop and manufacture next-generation sodium-ion battery cells for grid storage at GM's Wallace Battery Cell Innovation Center in Warren, Michigan. Peak Energy, founded in 2023 and backed by a $55 million Series A from Xora Innovation in August 2024, makes passively cooled stationary batteries that eliminate the need for active cooling or fire-suppression systems. Sodium-ion chemistry swaps lithium for lower-cost, longer-lasting materials; the trade-off is larger physical size for the same stored capacity. GM has committed $900 million to commercialize new battery chemistries and expects the partnership to yield production-ready cells after 2028. Peak has already signed deployment agreements, including a $500 million Jupiter Power contract for 4.75 GWh in November 2025 and a February 2026 Energy Vault deal for 1.5 GWh aimed at data centers. GM's Kurt Kelty, VP of Battery and Sustainability, said "for grid-scale stationary storage, sodium-ion is the right solution," framing the move as an alternative to Chinese LFP dominance in the global storage market.

Today the U.S. Nuclear Regulatory Commission published its Notice of Intent to conduct scoping and prepare a supplemental environmental impact statement for Cooper Nuclear Station's subsequent license renewal. Nebraska Public Power District submitted the application on May 7, 2026, requesting a 20-year extension that would push Cooper's operating license from its current January 18, 2034 expiration to January 18, 2054. Cooper is a boiling-water reactor at Brownville, Nebraska, with a capacity of 2,419 megawatts thermal. The public comment window closes July 16, 2026; requests for hearing or intervention are due by August 10. If approved, Cooper would operate for 80 years total, setting a precedent for subsequent renewals of older U.S. reactors as baseload demand for AI infrastructure power intensifies.

WATCHING

Peak Energy's timeline to production cells in 2028 will be a key checkpoint on whether the GM partnership can deliver cost-competitive sodium-ion packs before the next round of Chinese LFP price cuts. On the nuclear side, the NRC's supplemental EIS review will take multiple years; any public opposition to Cooper's extension through Q4 2054 will surface in the July 16 comment period.