Southern California Edison plans to expand its air conditioning cycling program under a California Public Utilities Commission final resolution issued earlier this month. Edison will add 30,000 new remote-control devices on air conditioning units in its service territory at an estimated cost of $7.5 million. The expansion comes on top of another augmentation of the program authorized by the commission, under which the utility is adding up to 43,000 new devices this year. The commission said that Edison currently has 177,000 installed cycling devices, most of them on residences, giving the utility the capacity to reduce its peak load by up to 308 MW. The expansions will allow Edison to reduce peak load by another 42 MW. Under the program, Edison is able to shut down air conditioners during Stage 2 emergencies using a radio signal. The commission said that such automatic load-reducing measures are among the most effective demand-response measures to reduce peak loads. Edison residential customers receive a break of up to $200 on their electricity bills for agreeing to participate. Money for the latest expansion will be transferred from unspent funds in the utility's Smart Thermostat Pilot Program.