In the example Bi-Fuel energy programs above, the generators will use approximately 50,000 and 270,000 therms of natural gas per year respectively. These figures represent a significant increase in natural gas use for a facility, and will often allow the Local gas company to subsidize all or part of the Bi-Fuel conversion cost. In addition to gas company rebates for the Bi-Fuel System, the increased gas use may also "bump" the total facility gas-load up enough to get a Lower overall gas rate. In one example, a customer had a total savings of $80,000 per year with Bi-Fuel. Approximately 50% of this savings was realized from the lower gas rate that the customer was given by the utility due to the increased gas Load of the facility.