July opened with US clean energy's two biggest financial props -- the wind and solar tax credits -- expiring without replacement, and closed with trade walls going up around Chinese cells and inverters on three continents. In between, sodium-ion batteries completed an unusually fast trip from lab curiosity to signed grid contracts, perovskite tandem solar cells broke their own efficiency record roughly once a week, and the capital backing all of it turned distinctly institutional: a $1 billion fusion round, a $7 billion storage acquisition, whole grids clearing 50%+ renewable generation for the first time. The bottom line: energy tech's underlying economics kept improving all month regardless of what Washington, Beijing, or Brussels did to the trade and subsidy environment around it.
The federal production and investment tax credits for wind and solar, in place since 1978 and repeatedly extended, lapsed on July 4 with no emergency extension, immediately raising financing costs on unlocked projects by an estimated 20-30%.
Ford and Tesla began LFP cell production in Michigan and Nevada in the same week in early July, and by month's end Ford and the GM-LG Ultium joint venture had both started LFP lines within 48 hours of each other in Tennessee -- taking the US from zero domestic LFP capacity to several operating plants inside a month.
Across the month, sodium-ion moved from CATL confirming mass production to Peak Energy breaking ground on a US gigafactory, CATL and Alfen signing a 5 GWh European deal, HyperStrong committing to 60 GWh, and CATL publishing container-level specs pricing the chemistry near $52/kWh -- with residential entrants Unigrid and Biwatt launching alongside it.
Efficiency records fell repeatedly through July -- a German 25.5% perovskite-CIGS cell, an inverted perovskite cell at 27.3%, an indium-free tandem at 31%, and LONGi topping the field twice with a 35.5% silicon-perovskite tandem -- while India signed a 10 GW manufacturing deal to build the architecture at scale outside China.
Germany covered 57.7% of H1 electricity demand from renewables, US renewables passed 30% of generation for the first time, EU solar hit a record 25% of the bloc's power in June, and California averaged over 51% solar generation across the entire month of May.
The MIT-spinout tokamak developer closed a $1 billion round backed by pension and sovereign wealth funds, bringing its total raised to roughly 30% of all capital ever committed to the fusion sector.
Brookfield paid roughly $7 billion for storage developer Aypa Power, US battery installations hit a record 3.3 GW in Q1, and global BESS deployment grew 27% year-on-year in H1 2026, even as Chinese integrators held 76% of the world market.
China imposed its first-ever consumption tax on PV cells and batteries, the US moved to ban Chinese power inverter imports, fresh 10-12.5% tariffs hit solar and battery equipment from more than 80 countries, and oil crossed $100 a barrel for the first time since 2022 -- all inside the same two weeks.
Beta Technologies flew genuine organ-transport missions rather than demonstration flights, Dubai certified the first purpose-built commercial vertiport, and Archer, Beta, and Macquarie launched a consortium to build 250+ shared eVTOL charging sites by 2030, while Joby and Archer advanced through further FAA certification stages.
India is curtailing roughly a third of its new renewable capacity because transmission has not kept pace, with solar curtailment hitting 50-60% in Rajasthan and Gujarat, while in the US federal agencies paid offshore wind developers to cancel leases and the Pentagon froze permitting on 155 onshore wind projects over radar concerns, prompting an 18-state lawsuit.