Financial Incentives...

Loans, grants, credits, abatements, and more that I found on the web or were brought to my attention:

 

May Apply Name Responsible Party / Description Incentive
       
10 Year Tax Abatement Board of Revision of Taxes Property tax remains relatively constant over a 10 year period, even during Philadelphia's tax reassessment initiative.
  Strategy to stimulate residential construction & conversion projects - that which is improved is waived from property tax for ten years.
 
The Energy Policy Act of 2005 "H.R.6" Act of Congress Numerous tax credits up to $2,000; tax form 1040 now includes a line for energy tax credits. Commercial building tax deductions up to $1.80 sq/ft via IRS Code §179D when using specific energy modeling software. Deadline end of 2007.
  1,700 pages of provisions, tax incentives, loan guarantees signed into law August 8 2005.

[tax credit vs tax deduction]
[more info at DOE website]

  Pennsylvania Energy Harvest Grant Pennsylvania's State Energy Program Average grant $250,000. Program closed July 14 2006. Taking emails for 2007 opening.
  Fund projects that promote and build markets for advanced or renewable energy technologies. It is about deployment of new and innovative technologies in the marketplace. Eligibility to County, Municipality, Authority, School District, NonProfit, Conservation District, Businesses registered with the Department of State.
 
Sustainable Development Fund's (SDF) Solar PV Grants Pennsylvania Public Utility Commission (PPUC) created The Reinvestment Fund (TRF) No longer accepting new applications. Was subsidizing 50% solar setup fee.
  Promote the development of sustainable and renewable energy programs and clean-air technologies on both a regional and statewide basis.
  Federal Historic Preservation Tax Incentives Program National Park Service in partnership with the IRS 20% tax credit for the certified rehabilitation of certified historic structures. 10% tax credit for the rehabilitation of non-historic, non-residential buildings built before 1936.
  Abandoned or under used schools, warehouses, factories, churches, retail stores, apartments, hotels, houses, and offices throughout the country have been restored to life in a manner that maintains their historic character.
 
  Historic Properties Repair Program (HPRP) Preservation Alliance for Greater Philadelphia Grant size $1,500 to $20,000.
  Assists low- and moderate-income homeowners with grants for exterior repairs to their homes so that the historic character of their neighborhoods can be maintained.