Large-scale solar and wind are vital to the future of our energy network. However if we want to transition to a fully renewable grid, we need to find a way to store the excess energy we get from wind and solar, so we can keep the lights on at night. That means we need batteries, and a lot of them. But how could some of our oldest energy sources be key to unlocking the grid of the future?

Useful Resources:

• What Is Hydropower?
• How large-scale batteries can support the growth of renewables
• What to look for when buying a solar battery

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