Although they can initially be expensive, solar panels are a great way to offset electricity costs. However, some do wonder how much power they actually generate.
A single 400-watt solar panel contains about 60 solar cells and generates between 1.2 to 1.5 kilowatt-hours of electricity daily, depending on how much sunlight you get.
A 400-watt solar panel can power most household electronics, like TVs and laptops, but larger appliances, such as washing machines, will likely need power from multiple panels.