Over the last few years, utility energy efficiency programs and building energy codes activity have exploded in the Midwest . Since 2007, four new states have adopted new energy efficiency portfolio standards (ACEEE 2011) - a total of seven states have mandated rate-payer energy efficiency programs - while seven states have adopted the 2009 International Energy Conservation Code (IECC) for residential dwellings, ASHRAE 90.1-2007 for commercial buildings or both.
