SunPower, one of the biggest national solar panel installers, has filed for bankruptcy. Here's what it means and what you need to know. In the energy industry, it's known as the solar coaster ...

The Sphere panel ... %-efficient solar cells are used in the module, some of which are Sunpower-branded. The weight of the modules is between 1.45 and 3.63 kilograms, depending on size, and ...

At $72 a month for a 4 kw Equinox home solar system, the electricity savings could equal the monthly cost of the 25-year loan, said Norm Taffe, executive vice president at SunPower. Under the loan ...