ORLANDO, Fla. - Steve Wiggins, president of the National Environmental Balancing Bureau (NEBB), pointed out at the organization’s press conference that NEBB has actually been working on the greening of buildings for years now via its commissioning procedure and certification. And it started certification for retrocommissioning in the past year.

Existing buildings is where we can gain the greatest benefit, said Wiggins. Many existing buildings have never been commissioned properly.