ASHRAE 90.1 FREE DOWNLOADNot only financial crises can shake up the whole world. The energy crisis of 1973 badly affected the countries of Europe and the United States. The refusal of OPEC countries to sell oil to these countries caused the highest increase in prices for oil, which has led to huge consequences.
Therefore, the United States authorities urgently need to take any measures on the issue of supplying and consumption of electricity. Thus in 1975, ASHRAE was adopted. It is a document which defines standards that provides minimum requirements for energy efficient designs for buildings except for low-rise residential buildings. Thereafter document was complemented a bit, but in its essence has not changed. Also, this document has been adopted in many other countries, such as effective way to minimize the cost of electricity.
For familiarizing with ASHRAE 90.1, you can download it from the link below.