For more than 30 years, the Pacific Northwest has successfully pursued state residential energy codes and building programs to create ever more efficient housing. Since its inception, the Northwest Energy Efficiency Alliance (NEEA) has played a pivotal role in aiding states to deliver more effective and efficient energy codes. NEEA contracted Ecotope to quantify the...

In 2009 the Washington State Legislature updated the legislation authorizing the Washington State Energy Code (WSEC). In the process, the legislature also set a goal that the total energy of new buildings would be reduced 70% over the performance of buildings built to the 2006 WSEC by the 2031 code cycle. To meet this ambitious...