Many people and authorities are taking a serious look at energy efficiency, especially where large, commercial buildings in metro cities are concerned – and rightfully so. The biggest energy users in commercial buildings are lighting and HVAC (Heating, Ventilation and Air Conditioning) – accounting for 19% of all the energy used in the United States, according to ASi Controls.
Unfortunately, there are no nationally enforced energy codes or “standards” that commercial building owners must abide by in the United States. Energy codes are agreed upon at the state and local levels. There are some guidelines, however, put out by the International Energy Conservation Code (IECC) and American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE). These two organizations focus on conservation requirements for the building envelope.