From the EPA CHP Partnership:
...The U.S. Department of Treasury has issued guidance for grants in lieu of tax credits for energy production facilities contained in the American Recovery and Reinvestment Act (ARRA) of 2009.
The Department of Treasury is not yet accepting applications. This information has been released to allow companies to prepare in advance for submitting a grant application. Applications may only be submitted after the facility to which the application relates is placed in service, or is under construction.