The Twin Pillars of Sustainable Energy: Synergies between Energy Efficiency and Renewable Energy Technology and Policy

Research Report E074


William Prindle, Maggie Eldridge, Mike Eckhardt, and Alyssa Frederick


This project by ACEEE and the American Council on Renewable Energy (ACORE) defines the most promising synergies between energy efficiency (EE) and renewable energy (RE), the "twin pillars" of sustainable energy policy. To reduce global greenhouse gas emissions, aggressive investments in efficiency are essential to slowing the growth of energy demand so that growing purchases of renewable energy can cut emissions and oil imports over the long run. The report examines key policy areas where efficiency and renewables work well together, contains case studies for both statewide programs and policies and at the building level, and recommends the next steps for coordinating policies and programs.