It was a whirlwind year for energy efficiency in 2019 at the state level. Many legislatures and governors established the transition to clean energy and reduced greenhouse gas (GHG) emissions as their top priority and increased their efficiency efforts to help achieve it.

Most energy efficiency programs target only one fuel, usually electricity or natural gas. While they achieve savings, they sometimes miss opportunities by failing to address other fuels. Dual-fuel programs, on the other hand, have the potential to save more energy, reduce program costs, and improve...

While governors across the US are setting innovative energy policies, energy efficiency can help them go even farther toward meeting state goals. This toolkit provides steps for governors to increase energy efficiency in homes, businesses, and transportation. It includes foundational policies, current state practices, and...

This white paper examines the current state of zero energy codes and provides an update on avenues to achieving zero energy codes by 2030. It presents an overview of current efforts to achieve zero energy and similarly high-performing buildings, example code proposals that help move...

The 2012 International Energy Conservation Code contains 396 separate requirements applicable to non-residential buildings; however, there is no systematic analysis of the energy cost impact of each requirement. Consequently, with limited building department resources, the efforts for plan review, inspection, and training may not be...