Life-cycle cost analysis is essential tool in energy efficiency retrofit planning
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When considering energy efficiency retrofits, building owners need to do capital expenditure (CapEx) planning that includes the what, when, and why of repairs along with cost, says Graeme Scott, a senior principal at engineering consulting firm Halsall Associates. One of the most important elements in CapEx planning is doing an energy audit, he says.
“You need to understand your upgrade options and your ECMs (energy conservation measures),” Scott said. The money spent to improve thermal values might not show a quick payback, but often when returns are tallied over the long term, it proves to be a wise expenditure, he said. A CapEx plan incorporates an agenda for renewal of building assemblies and components, including HVAC and interior finishes, as well as the building envelope.