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City-cited study: ductless all-electric systems often lower capital and operating costs in Flagstaff modeling
Summary
A city-contracted study presented to the commission found ductless all-electric systems often show lower upfront capital costs and reduced operational expenses versus mixed-fuel and ducted-electric alternatives for many modeled scenarios; results vary by building type and equipment choice.
A consultant-led study presented to the commission summarized construction and operational cost modeling for mixed-fuel and all-electric homes in Flagstaff, using interviews with roughly a dozen local builders and illustrative building scenarios.
The analysis modeled several scenarios for single-family and multifamily configurations: a mixed-fuel base case (natural gas and electricity), ducted all-electric, ductless all-electric (mini-split heat pumps), and higher-efficiency variants of each. The study found that ductless all-electric systems frequently had the lowest capital costs…
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