Aiming at a new form that electricity users are increasingly transforming into“power prosumers”, transmission and distributionrates system of California USA is analyzed and summarized. Firstly, basic content of transmission and distribution services for power pro?sumers is analyzed. Then, charging standards of interconnection process fees, interconnection facilities cost fees, and grid usage fees forpower prosumers are introduced. Next, definition, measurement rules, and charging rules for standby rates in detail are introduced indetail. Finally, the transmission and distribution rates between China and California are compared, and some suggestions are put forward.