The week opened with Ford and Tesla both producing LFP cells on American soil for the first time — on the same day — and closed with the US solar and wind tax credits expiring. In between, the EU adopted a binding 45 GW storage mandate, global BESS shipments hit 320 GWh, and CATL charted a technology roadmap from sodium-ion (now) through solid-state (2030) to lithium-air (long-term). The bottom line: the energy storage buildout crossed from fast to structural this week, driven by mandates, manufacturing commitments, and AI-powered demand — just as the policy framework that got it here began to crack.
The production and investment tax credits for wind and solar, first enacted in 1978 and repeatedly extended, lapse as part of budget reconciliation. Their expiration could raise project financing costs by 20-30% for new contracts absent a replacement.
Ford started producing LFP cells at BlueOval Battery Park Michigan, the first by a legacy US automaker. Tesla simultaneously began LFP manufacturing at Gigafactory Nevada for Megapack storage. Two American gigafactories producing LFP cells in the same week is a structural signal.
Battery energy storage system shipments reached 320 GWh globally in 2025, a 50% year-on-year increase, with BYD displacing Korean manufacturers from the top supplier position. No Korean firm appears in the top-10 cell suppliers.
EU member states formally adopted a 45 GW energy storage target to reduce gas import exposure — the first binding storage capacity floor the bloc has set. Twenty-two countries signed a tripartite pact committing to remove regulatory barriers and enable non-discriminatory grid tariffs.
CATL confirmed sodium-ion cells have entered mass production and can scale to 100 GWh annual capacity within three to five years. Solid-state sits at step four of nine on its internal readiness scale. The company's chief scientist named lithium-air as the long-term target, citing energy density comparable to gasoline.
Renewable sources met 57.7% of Germany's electricity demand in the first half of 2026, up from roughly 52% in H1 2025. In April alone, both wind and solar individually outproduced coal.
Four independent power producers broke ground on projects totalling 11 GWh across Europe. Scotland added another 3.6 GWh in the same period. The simultaneous launch reflects a maturing project pipeline.
Energy North submitted an environmental application for a hyperscale data-centre campus in northern Australia designed to operate entirely off-grid, backed by 16 GWh of co-located storage — an unprecedented scale of compute-and-storage integration.
LG finalised a long-term agreement to supply LFP prismatic cells exclusively for Tesla's Megapack 3 grid storage system, with a dedicated Michigan plant planned.
German researchers achieved a verified 25.5% efficiency for a perovskite-CIGS tandem cell, while Trinasolar set a commercial-format record with a perovskite-silicon panel at 907W output and 29.2% conversion efficiency.
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