"After close to four years of ongoing construction, plus three years of planning and permitting, the $2.4 billion, 550-megawatt Topaz Solar Farm — the first of this size in operation — is finally finished, and primed to sell power to California utility PG&E. The project is owned and operated by MidAmerican Energy, a subsidiary of Warren Buffett’s Berkshire Hathaway." - Todd Hoff