(Bloomberg) — The Tesla Inc.-installed Hornsdale battery in South Australia completed an upgrade that boosted its capacity by 50%, but fell short of winning back its title as the world’s biggest ...

The world's biggest lithium-ion battery has plugged into an Australian state grid, an official said Friday, easily delivering on Tesla Inc. chief executive Elon Musk's 100-day guarantee. Musk promised ...

This story originally appeared on Inside Climate News and is part of the Climate Desk collaboration. The need for long-duration energy storage, which helps to fill the longest gaps when wind and solar ...