Premium Efficiency Cooling Program
Premium Cooling Basics
Central residential air conditioning systems are rated according to their energy efficiency using two measures: EER and SEER. The EER (Energy Efficiency Ratio) is a measure of the air conditioning system's cooling output for each unit of electricity consumed at peak usage conditions. The Seasonal Energy Efficiency Ratio (SEER) identifies the energy-efficiency rating for an air conditioning unit as adjusted for climate and measured over an entire cooling season.
A higher SEER rating is a more efficient air conditioner. New, energy efficient air-conditioning systems are commonly available with SEER ratings of 14 and higher. SEER 15 units (approximately rated at 12.5 EER) meet federal minimum requirements for the 2005 Energy Policy Act tax credits.
While you may save money upfront by selecting equipment with a low SEER rating, you will pay more in the long run due to higher energy use. A typical 3.5 ton HVAC system installed in San Diego's inland valley between 1978 and 1992 is rated at 9.0 SEER. Assuming it's performing at less than optimal efficiency, it will cost roughly $335 to operate each year (at $0.14/kwh).
Replacing this unit with a new premium-efficiency air conditioner rated at 15.0 SEER could save $130 per year - almost 40% over the old system! Plus, it gives you added protection against rising home cooling costs for the lifetime of your investment and will provide reliable service when you need it most.