To queries from presspersons at a meeting here on Wednesday, BEE Energy Economist S. P. Garnaik said though the equipment, with higher energy efficient star rating, cost more, the consumer stood to gain by way of reduced electricity consumption. In the case of split ACs, the payback period is between 2 years and 2.5 years.
The meeting was part of the efforts to create public awareness of BEE's upgraded requirements for star rating of split type room ACs. A release said that the regulation came into effect in January and raised the energy efficiency standards by about 8 per cent for split ACs for the same rating band.
Mr. Garnaik added that during such upgrade of the norms, the model with the lowest star rating, single in the case of split ACs, got phased out. On the benefits of energy labelling, he said in the last five years, the country avoided a generation capacity of 7,000 MW.
In split air conditioners for home use, standards have been hiked from January for energy efficiency rating of one to five stars. What was five-star standard last year will now qualify for four-star only and so on down the line. The lowest standard, a single star unit lost its rating and has been phased out of the market. The efficiency bar will be hiked every two years, he said.
The energy efficiency is measured as Co-efficient of Performance, an indication of cooling capacity in watts for every watt of energy used. Last year the lowest range was 2.3 to 2.49 and the highest 3.1. This year this has moved up to 2.5-2.69 at the lowest and 3.3 at the top end. In two years it will be 2.7-2.89 and 3.5.
But greater the energy efficiency, more the expense for the buyer but there are benefits, he said. A five-star unit can cost over Rs 7,000-8,000 more than a single-star rated unit. But the consumer recovers the cost on lower power consumption.
In the last five years over 7,766 MW of power generation capacity has been saved from the range of electrical items brought under star-rating. As the efficiency bar is hiked, the next five years will see a saving of more than 2,300 MW, he said.
The BEE had sought amendments making it mandatory for manufacturers to recall the products after the tests fail.