# How scientists turn lakes into giant batteries

- Institution: TED
- Department: TED-Ed
- Speaker: TED-Ed
- Year: 2021
- Level: For everyone
- Language: English
- Subjects: Earth and environment, Teaching and learning
- Source: [TED](https://www.ted.com/talks/ted_ed_how_scientists_turn_lakes_into_giant_batteries)
- Licence: [CC BY-NC-ND 4.0](https://creativecommons.org/licenses/by-nc-nd/4.0/) (Non-commercial use only, and no changed versions.)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

As of 2020, the world's biggest lithium-ion battery is hooked up to the Southern California power grid and can provide enough power for about 250,000 homes. But it's actually not the biggest battery in the world: a pair of lakes are. How can lakes be a battery? Explore how inventors are rethinking what a battery can be, and how these surprising solutions could help us achieve a sustainable future. \[Written by Elizabeth Cox and George Zaidan, directed by Lisa LaBracio, narrated by Jack Cutmore-Scott, music by André Aires\].

## Lectures

1. [How scientists turn lakes into giant batteries](https://invisiblenetwork.ai/learn/ted/ted_ed_how_scientists_turn_lakes_into_giant_batteries/73813aef5e63), 5 min (TED's player)