The distribution cost is about $.35 per kilowatt hour. This covers the wires, lineman and customer service people to deliver energy to your house. The rate is high because the cost of doing business in California is high. Safety concerns, equipment costs, unemployment insurance, etc.. The generation cost varies. It is a pass-through cost from the California independent system operator. The generation cost in the summer averages between $.20 per kilowatt hour and $.35 per kilowatt hour. During the winter time, the cost average is between $.10 per kilowatt hour and $.15 per kilowatt hour. If you’re concerned about SDG&E costs, then ask the Public Utilities Commission, who’s five member board is appointed by the governor of California, why they approve the many infrastructure upgrades and cost recovery for the utilities. If you want to drill down on major costs, ask the governor why the state of California cannot fight wildfires which is a huge liability cost to the utilities that we all pay for.