Solar · Updated 2026-04-25
How does PSEG Long Island net metering and interconnection work?
PSEG Long Island credits residential solar exports at the full retail kWh rate (1:1 net metering) and processes most PV interconnections in 4–8 weeks; battery-paired projects take 6–10 weeks.
PSEG LI residential customers under 25 kW use the Long Island Net Energy Metering (NEM) tariff: every exported kWh offsets a delivered kWh on the same monthly bill, with annual true-up. Interconnection requires a licensed installer to file a NEM application, pass a third-party electrical Cert, and receive PSEG LI permission-to-operate before energizing.
Common follow-up questions
Is Long Island still on 1:1 retail-rate net metering?
Yes for residential PV systems ≤ 25 kW. PSEG Long Island operates outside the NY Public Service Commission's Value Stack tariff that applies to upstate utilities, so Long Island residential solar continues to be credited at the full retail kWh rate as of April 2026. Always confirm against PSEG LI's current solar tariff before signing a contract.
What does the interconnection application include?
PSEG LI's NEM application requires single-line and three-line electrical drawings, equipment cut sheets, the inverter UL 1741-SB listing, the racking UL 2703 listing, the property survey, the homeowner's signed customer authorization, and proof of Suffolk County master-electrician licensing for the installer.
Does adding a Tesla Powerwall change my net-metering treatment?
No — adding storage doesn't change the kWh credit rate, but it adds a separate Smart Inverter / Energy Storage interconnection review on top of the original PV interconnection. PSEG LI evaluates the storage system's anti-islanding and export-control settings before issuing permission-to-operate for the combined system.
By the numbers
Related services
Towns we cover
References
Need help with this on Long Island?
NovaLee Solutions is a licensed roofing, solar, and electrical contractor serving Suffolk County and all of Long Island. Our crew is GAF-certified, Tesla-Powerwall-certified, and Suffolk County master-electrician licensed.