---
title: Britains Largest battery is actually a lake — HIGH T3CH
url: https://hight3ch.com/britains-largest-battery-is-actually-a-lake/
date: 2018-11-05
---

# Britains Largest battery is actually a lake

Dinorwig Power Station, otherwise known as Electric Mountain, is a pumped-storage hydro station in Llanberis, Wales. And yes: it’s Britain’s largest battery. Here’s how it works, and why some of the things you think you know about TV pickups might not be so true any more.