One of the most pressing questions about a plan to expand the California power grid to as many as 14 states was how much it would cost to transfer oversight of the poles and wires from a state-run nonprofit to a regional board of appointees. The California Public Utilities Commission told lawmakers the plan to redefine the way electricity is regulated would cost the agency $700,000. But according to internal documents obtained by The San Diego Union-Tribune, the price tag for the so-called regional power grid was $2.4 million when it was developed by rank-and-file analysts. Utilities commission President Michael Picker rejected that finding as too high.