ID#2297 made on
EAc2 - On-site renewable energy
LEED BD+C: New Construction, LEED O+M: Existing Buildings, LEED BD+C: Core and Shell, LEED BD+C: Schools
Our community college campus includes an existing 1.06mW solar field that backfeeds two existing metered services. Additional metered services on the campus are serviced by the utility company campus...
Our community college campus includes an existing 1.06mW solar field that backfeeds two existing metered services. Additional metered services on the campus are serviced by the utility company campus 'loop', but are not fed directly by the solar array. The solar array currently accounts for 25% of power provided to the existing campus (documentation available). Two new buildings are under construction on campus. Building A is a new 60,000 s.f., 3-story Office and Administration building, which is fed by one of the two metered electrical services tied directly to the solar array. Building B is a 77,000 s.f., two-story Fine Arts facility, which will require a new metered service from the utility company campus 'loop', but are not fed directly by the solar array. A CIR Ruling dated 08/13/2007 implies that an existing PV array may be applied to new construction on a campus, therefore we would like to pursue EA credit #2 for both projects. Our intent is to provide documentation to express the anticipated annual energy use of each new building as a percentage of the overall energy use on campus, and to apply the same percentage of the power generated by the solar array towards this credit.
The project team is requesting clarification on whether or not EAc2 can be pursued for new campus projects when a solar PV array previously exists. Under the LEED Application Guide for Multiple Buildings and On-Campus Building Projects (https://www.usgbc.org/ShowFile.aspx?DocumentID=1097) it states: In the case where the renewable energy equipment is not physically located on the applicant building(s), provide data for each building showing the projected energy consumption and the percentage to be met with their prorated or dedicated share of renewable energy. The owner should also submit a certification letter acknowledging that the renewable energy from a central system will apply only to the submitted project(s) and will not be applied to subsequent buildings for any future LEED certifications. Thus, both projects can pursue EAc2, provided a previously undedicated share of renewable energy generated is allocated to each building project.
Update April 15, 2011: Please note that all 2009 projects in multiple building situations must follow the 2010 Application Guide for Multiple Buildings and On-Campus Building Projects, located here: https://www.usgbc.org/ShowFile.aspx?DocumentID=7987. 2009 project teams should check this document for up to date guidance on all multiple building issues. Applicable Internationally.
Related Addenda (Corrections & Interpretations)