In-house audits can fall short of the credit intent if conducted by inexperienced staff. In-house audits sometimes identify few meaningful energy conservation measures. More successful audits uncover low-cost, high-payback opportunities in the reconfiguring of operations schedules, system set-points and lighting technologies (such as adjusting or recalibrating system controls, replacement of T12s with T8s, use of low-wattage lamps, and other strategies) during the audit. Note that a very well-operated building may have already identified and implemented such measures, reducing the amount of “low-hanging fruit” available for energy savings.