Inform - IRS Private Letter Ruling Opens Floodgates for Residential Storage Retrofits

by Brett Simon

On March 2, 2018 the IRS issued Private Letter Ruling (PLR) 201809003 which permitted a customer to take the 30% solar Investment Tax Credit (ITC) for a storage system retrofitted to existing solar PV. Under the PLR, the storage system must be metered to ensure it charges 100% of its electricity from the solar system to claim the ITC. Previously, residential storage retrofits could not claim the ITC. This PLR opens the door for retrofitting storage to existing PV.

Brett Simon Analyst, Energy Storage

Brett Simon is an energy storage analyst at GTM Research, focusing on both U.S. and international energy storage markets. Prior to joining GTM, Brett earned a Master of Science degree in Sustainable Systems at the University of Michigan School of Natural Resources & the Environment. He first became interested in energy storage systems and their potential to revolutionize the energy sector through his coursework and master's project. Brett also holds bachelor's degrees in mathematics and environmental studies from New York University.

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