The US Greenbuilding Council has released its beta guide for homeowners. It has information from a highly reliable source on everything you might need as a homeowner looking for answers. 
 Find a BPI Certified Contractor near you.
All the NY State Incentives all in one place. Just for private homes. 
All Federal Incentives all in one place.
NYSERDA  New York State resource for cutting energy costs.

 National Grid Customer can use their incentive programs by zip code
The new definitive USGBC homeowners guide and advice
Northeast Sustainable Energy Association
This regional organization site has very helpful resources for significantly cutting energy waste in homes and buildings.
 Tax Credits & Incentives by Zip Code
 Type your zipcode in this service to find tax and other special offers on everything from Dishwashers to windows and doors.
 
See this site for current Federal tax credits and incentives, many are in the range of 30 percent of the equipment's cost.  This is another site showing current tax credits on everything from cars to microturbines.