The Eco-Green Improving energy efficiency is the best short-term answer to today&＃39;s energy problems Until cleaner and sustainable sources of energy become available on a large scale, improving the energy efficiency of today&＃39;s systems is important to reduce CO2 emissions and overall energy consumption. And the good thing is: It also saves you money!The Eco-Green is an electronic control unit that adds intelligence to air conditioning systems and improves their energy efficiency typically achieves energy savings of up to 30% (depending on local conditions) resulting in a short payback period. is a retrofit product to upgrade existing units is engineered and manufactured in Thailand to highest quality standards.