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Moist-Electric Wallpaper for Indoor Energy Harvesting and Humidity Management

advanced.onlinelibrary.wiley.com61 points35 comments
Screenshot of Moist-Electric Wallpaper for Indoor Energy Harvesting and Humidity Management

Commenters reacted positively to the moist-electric wallpaper idea as an intriguing proof of concept, with MostlyStable calling humidity control potentially more useful than the modest power generation (suitable for small IoT sensors) and asking for serious engineering work on cost, durability, and aesthetics. bix6 and others were impressed by the reported humidity drop and curious about test conditions. westurner and RobGR connected the idea to existing infrared and humid-air systems, while roughly emphasized the climate angle - harvesting humidity could help with rising wet-bulb risks if done at scale. Several users suggested practical integrations, like reusing HVAC condensate (roughly) or treating condensate for non-potable uses (shagie, NewJazz).

Opinion splits mainly on whether widespread dehumidification would affect outdoor humidity or be a viable water source. jedberg floated becoming a “moisture farmer” and worried about regional impacts; chris_va offered a Fermi-style calculation suggesting scaling could matter, whereas RobGR, jawns, and OneDeuxTriSeiGo argued atmospheric water is vast and local reuse/disposal would return most water to the system. LarsAlereon warned condensate can be contaminated and may not be practical for potable supply without treatment, and others noted regional and seasonal variation in feasibility.

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