Solar FAQs with Bill WaltonSelect a Topic Below and Go One on One with Bill Walton Share Is solar power less expensive than traditional electricity? How does solar power work at night? What happens when the power goes out? What happens at the end of my lease? What's the referral reward? How long does it take to install solar? What is the benefit of an NRG Home Solar lease? Do solar panels still work when it's cloudy or raining? What maintenance is required? How is a homeowner able to tell whether they're a good candidate for solar? How long is the lease? Do I need to insure the solar system? What happens if I sell my home?