Energy efficiency program administrators can be quite conservative regarding change and innovation. I love hearing, “Bring us new ideas that have been successful in three or four other programs.” There you are! The pinch is on. Energy efficiency codes and standards have raised the bar consistently such that incremental savings from one code change to the next are exceedingly scarce. The gravy-train days of incremental widget-efficiency improvements, including lighting efficacy and heating and cooling equipment efficiencies, are quickly closing. Vehicles A nice parallel to diminishing returns on efficiency is vehicle mileage. The following chart shows fuel energy consumed per thousand…
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