HellBill » Bills Categories: » Energy Bill » Physics Power & Efficiency?

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: A family of five is planning to install solar panels on the roof of their home to help reduce the cost of electricity and save energy to help the environment. The family plans to install 10 panels, each with a power rating of 600 W. On average, a solar panel can produce electricity for 4.5 h daily.

a) How much solar energy will the solar panels transform into electrical energy each day?

b) Assume the cost of electricity is $0.05/kwh. How much will the family save in a year on their energy bill?

c) Each person in the family uses electrical energy at an average rate of 2 kWh per day. Will they still need to buy electricity from an electrical energy supplier? Explain

I have tried this question and my numbers seem really high. Someone please help me!
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