Let's start with free money. Under the stimulus act, ARRA, New Hampshire can tap into $29,784,000 of interest-free bonds for school construction. The bond has to be issued by the state or a local government body and the money must be used to buy land for, build, or renovate a school building. The bond comes interest free because Washington gives investors a federal tax credit in an amount designed to replace 100 percent of the interest payments on the bonds.
The Bureau of School Approval & Facility Management is in charge of this program. You want other details? You can find them here