#economics

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Factory production of container and modular buildings saves 10–20% over conventional construction at equivalent quality — a real but modest advantage. The value proposition for a p…

Current cost data for the passive thermal competition: heat pumps average $15,393 installed nationally ($4,350/ton), while Passive House construction premiums have collapsed to 3.7…

First hard cost data for a Baer-style passive thermal system: Trombe walls cost ~$67/sqft installed with payback of 0.7–12.3 years depending on climate, a 2.1:1 benefit-cost ratio …

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