This is an administrative ruling posted by USGBC updating the definition of qualifying renewable energy. This ruling covers two aspects of that definition. Please note this CIR was originally posted under NCv2.1, dated 5/18/2006.
First, the LEED-NC v2.2Reference Guide First Edition (October 2005) includes a clerical error regarding the eligibility of bio-fuels. Table 3, p. 199 only references electricity production from bio-fuels, whereas it should reference all energy production from bio-fuels. Any energy produced from the eligible fuels qualifies for points in EAc2, and any energy produced from the ineligible fuels does not qualify. Second, LEED-NC v2.2 uses a broader definition of renewable energy compared to v2.1 that provides more flexibility for project teams. This administrative ruling authorizes v2.1 projects to use any of the allowable forms of renewable energy described on pp. 198-199 of the v2.2 Reference Guide. The eligible and ineligible forms of renewable energy are summarized in the following tables: Table 1: EA Credit 2 Eligible On-Site Renewable Energy Systems Photovoltaic systems Solar thermal systems