i the environmental protection and management act in english available online at statutes.agc.gov.sg ii the environmental protection and management energy conservation regulations 12 pages in english . the existing environmental protection and management act and environmental protection and management energy conservation regulations will be amended to implement minimum energy efficiency standards for registrable air-conditioners and refrigerators supplied in singapore from 1 se 2011. introduction of minimum energy efficiency standards for registrable air-conditioners and refrigerators supplied in singapore. from 1 se 2011 onwards all registrable air-conditioners and refrigerators supplied in singapore must comply with minimum energy efficiency standards specified below. for casement and window type air-conditioners the coefficient of performance cop 2.50. for split type non-inverter air-conditioners with one indoor unit cooling capacity less than 7kw the cop 2.96. for split type non-inverter air-conditioners with one indoor unit cooling capacity equal to or more than 7kw the cop 2.50. for split type non-inverter air-conditioners with more than one indoor unit cooling capacity less than 7kw the cop 2.96. for split type non-inverter air-conditioners with more than one indoor unit cooling capacity equal to or more than 7kw the cop 2.64. for split type inverter air conditioners with one indoor unit cooling capacity less than 7kw the cop 2.96. for split type inverter air conditioners with one indoor unit cooling capacity equal to or more than 7kw the cop 2.64. for split type inverter air-conditioner with more than one indoor unit cooling capacity less than 7kw the cop 2.96. for split type inverter air-conditioner with more than one indoor unit cooling capacity equal to or more than 7kw the cop 2.64. for refrigerator without freezer the annual energy consumption in kwh aec 368 0.892 x vadj tot x 0.812. for refrigerator with freezer the aec 465 1.378 x vadj tot x 0.699. for refrigerator with freezer and through-the-door ice dispenser the aec 585 1.378 x vadj tot x 0.646.