On Friday, March 2, the Internal Revenue Service released Private Letter Ruling (“PLR”) 201809003. The PLR is not binding precedent, but it indicates that the IRS will permit a taxpayer to claim a Code Section 25D credit in respect of a residential battery installed after the solar panels to which it will be attached was installed. In the PLR, the IRS expressly states that it will treat the battery as property that “uses solar energy to generate electricity,” provided only solar energy is used to charge it.
The PLR concerns individuals claiming a credit for a residential system, but don’t stop reading. This outcome matters for C&I and utility scale projects also.