Energy efficiency ratings (SEER/EER) of air conditioners and heat pumps keep rising, thanks to new technologies such as electronically commutated motors (ECMs), inverter-driven compressors, and advanced heat exchangers. These technologies have helped boost high-end cooling equipment ratings to the mid-20-SEER range, which was unthinkable just a few years ago.
So how much higher can SEER/EER ratings go? Using today’s technology, manufacturers think there is still some room to grow in all types of cooling equipment. And as technologies continue to evolve, it is likely there will be even greater efficiency gains made in cooling systems.