Shared solar models allocate the electricity of a jointly owned or leased system to offset individual consumers’ electricity bills, allowing multiple energy consumers to share the benefits of a single solar array.
Shared solar presents an area of tremendous potential growth for solar photovoltaics (PV), expanding the potential customer base to 100% of homes and businesses.
Options such as offsite shared solar and arrays on multi-unit buildings can enable rapid, widespread market growth by increasing access to renewables on readily available sites, potentially lowering costs via economies of scale, pooling customer demand, and fostering business model and technical innovations.
The output of shared solar arrays can be divided among residential and commercial energy consumers lacking the necessary unshaded roof space to host a PV system of sufficient size, or divided among customers seeking more freedom, flexibility, and a potentially lower price.
– Excerpt from National Renewable Energy Laboratory
U.S. Department of Energy, “Shared Solar: Current Landscape, Market Potential, and the Impact of Federal Securities Regulation” April 2015