New York Homeowner Faces Unexpected High Bill Due to Old Utility Meter After Solar Installation
A New York homeowner experienced a significant increase in their electricity bill after installing a 17.94-kilowatt solar system with a Tesla Powerwall 3 battery, despite believing they were drawing minimal power from the grid. The unexpected high bill was attributed to an old utility meter that was not configured for solar, causing it to register electricity exported to the grid as consumption rather than offsetting it. This issue arose because the system was brought online before receiving 'Permission to Operate' (PTO) from the utility company, National Grid. Older meters are typically 'forward-only,' meaning they cannot accurately measure bidirectional energy flow, leading to incorrect billing when solar panels export power. This incident highlights a critical pitfall for homeowners who energize their solar systems prematurely without proper utility configuration and approval.
