Buff Corp is considering installing a more efficient furnace. The furnace costs $150,000 to install. Buff Corp expects the furnace to generate $25,000 in energy cost savings per year for 8 years. The furnace has no salvage value. Buff Corp has a required rate of return of 12%. The town in which Buff Corp is located has proposed offering a rebate to companies installing efficient furnaces, provided immediately at the time of installation. If Buff Corp evaluates projects based on NVP, Which of the following describes the appropriate decision rule for Buff Corp (assuming there are no benefits to the installation besides those described above)? Present Value of Annuity of $1