two AC power sources -- connection? i am working on a control system for a compressed air energy storage system for a wind turbine (generates ac). the goal is to shave peak power consumption, so at night the compressor will charge (either by the wind or by the grid), and during peak hours, it would release, generate AC power (turbine->inverter), and feed into a meter. however, we are looking to optimize power delivered to the meter, so during peak times when the compressor is discharging, we want to hook the wind turbine up to the meter also. however, this is two ac sources we are trying to hook into the meter--can we add these? the easiest solution would be to connect them to separate meters, i know. but it would be great to shave more peak consumption.