The amount of time it takes to pay back the money invested in an energy saving product is sometimes the ONLY clincher in the deal. Although everybody knows that by spending money on such items will save them money at some point there is a cut off balance between future pain and cost.
Maybe this fact is clear but certain products on the market have their own shelf life and if the pricing of them is too high they will eventually become dated and the market will dicipate as manufacturers inbuild them or improve efficiency.
This I found with commercial chillers, the clients have to consider the pay back against bills and typically need a fairly prompt pay back say within 6-24 weeks as it feels a tangible saving.
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