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LIPA has switched to an Expected Performance Based Buy-down (EPBB) rebate formula so to calculate the available LIPA rebates please go to the following website: for an estimate. You can still use this capacity based calculator, but it will not provide you with an accurate estimateof LIPA's rebates.

December 1, 2010 - Changes to LIPA’s Solar Entrepreneur Program

As of December 1, 2010 at 1:00PM the Solar Entrepreneur Program (for businesses, not-for-profits, schools, and municipalities) 750kW ($1.75 per watt) Block is fully subscribed. No further applications will be accepted until January 1, 2011.

December 1 Solar Pioneer (residential) Program

LIPA has updated their Solar Pioneer Program to again include rebates of $1.75 per watt for residential systems up to 10kW. The Maximum Rebate paid by LIPA per metered account will not exceed 10kW DC or 50% of the installed costs. Additional limitations may apply. Further changes may be coming on January 1, 2011. See for more information.

More information is available on the LIPA website at

Part 1: Geographical and building info
Utility Co. Long Island Power Authority (LIPA) *
Facility Home
Non-profit / School / Government

* Not from Long Island? Visit to calculate your savings!

Courtesy of DOE/NREL

Part 2: Electricity usage

Please enter either your average monthly electric bill or your annual electric use (in kWh).

Avg. monthly electric bill $ .00
-- OR --
Annual electric usage (kWh)
For the most accurate calculations, call LIPA at 800-490-0025 to get your Annual Electricity Usage. Be sure to have your account number handy.

Just want to try it out? Enter 12000 in the annual usage box (US average consumption rate).

Courtesy of DOE/NREL