National Defense Energy Savings Act of 2004 - Authorizes the Secretary of Defense to: (1) enter into an energy savings performance contract in order to achieve energy savings and ancillary benefits; (2) incur obligations under the contract to finance energy conservation measures so long as guaranteed savings exceed the debt service requirements; and (3) implement a pilot program to enter into up to ten energy savings performance contracts for the purpose of achieving energy savings, secondary savings, and incidental benefits, in nonbuilding applications.
Sets forth implementation guidelines, including contract terms and conditions.