Google is partnering with solar panel maker SunPower to invest up to $250 million in leasing solar systems to homeowners. The Mountain View technology giant is contributing up to $100 million, and San Jose-based SunPower will invest $150 million, Google said in a blog post. The goal is to make “it easier for thousands of households across the U.S. to go solar.” “Using the fund … we buy the solar panel systems,” Google said. “Then we lease them to homeowners at a cost that’s typically lower than their normal electricity bill.”