RESNET, or the Residential Energy Services Network, was founded in 1995. The concept grew out of a commitment to developing national standards for home energy auditing and home energy ratings.
Around the same time, the Building Performance Institute (BPI) was created. BPI also had a focus on home energy auditing. Until recently, BPI was not focused on home energy ratings. It is this piece that has helped RESNET climb to popularity.
What is a Home Energy Rating?