The global growth in battery this year is bonkers🔋 On paper, the batteries installed this year can every day store and release an incredible 34% of the growth in solar generation🤯 We estimate solar generation grows by 491TWh in 2026 = 1346GWh more every day than in 2025. An estimated 459 GWh of battery capacity will be installed this year, which is 34% of that daily solar generation growth. But in practice many batteries will remain underutilised due to market design shortcomings. Batteries can stack revenues across energy arbitrage, ancillary services and capacity payments. Realising this value depends on market design. Where batteries can access multiple revenue streams and co-optimise across markets, they are used more efficiently. China illustrates the challenge. Despite being the world’s largest battery market, much of its battery fleet remains underused as regulatory reforms continue to open additional revenue streams. Standalone batteries cycled an average of 299 times in 2025, up from 146 cycles in 2022 but still well below international best practice of around 350 cycles a year. Meanwhile, co-located batteries cycled even less, averaging just 199 times in 2025. Market design policy has got to catch up with reality on the ground.

The @IEA has increased its 2026 forecast --- now forecasts 29% of all cars sold will be electric... ⚡️