We in the HVAC industry pride ourselves on staying on top of all the latest technology–solar, geo-thermal, high-efficiency RTUs and chillers, VFDs, web-based controls, on and on. All these technologies are exciting to learn about and more exciting to apply. Some of them even fit into the “wow” category!
These technologies come with different prices and often with at-tractive rebates and incentives from your friendly utility. And, without a doubt, they all have their place and are worth studying and seeing if they have a fit on your project or in your facility.
Most of these technologies are only considered if their payback or return on investment (ROI) is reasonable. What is reasonable? Most owners/managers want, or expect, a ROI of three years or less. Maybe an owner occupied property will accept a five year or less ROI, but that is not often. I think the three years or less was born in the time when one could get 10% to 12% on their money in an investment. But, that is for another article.