Storing Electricity
You can store elecricity in batteries.
You can use batteries to store electricity. The batteries you usually use are 6-9kWh batteries. The batteries are made out of lead and sulphuric acid, and are bad for the environment because when you store electricity in them, lead goes into the air. Inside of the battery are solar cells. The solar cells store electricity made from the sun. The battery releases the electricity inside of it when needed and saves the rest. While the sun is shining brightly, the battery recharges itself.