Virtual Net Energy Metering at Multitenant Buildings

This paper describes the opportunities and challenges to establishing solar photovoltaic (PV) and other renewable energy projects that utilize virtual net energy metering (VNM) on multitenant properties in Pacific Gas & Electric’s (PG&E’s) territory, and more generally, in California. More specifically, the paper: (1) introduces the concept of VNM and its benefits, (2) describes key VNM program details, and (3) identifies challenges to implementing VNM projects. In addition, the appendix includes a review of other forms of virtual metering in California and similar policies in other states, as well as a sampling of interconnection diagrams and a fact sheet that explains VNM to rental property owners and homeowners’ associations. This material was prepared by San Francisco’s Department of the Environment under a U.S. Department of Energy SunShot Initiative Rooftop Solar Challenge grant managed by SolarTech. The paper is intended as a primer on virtual net energy metering for local governments, condominium and cooperative homeowners’ associations (HOAs), rental property owners, residential and commercial tenants, and other solar industry stakeholders.