design overview: proven technology DESIGN SUMMARY The proven technology scenario combines existing, commercially available technologies. In developing this scenario, cost was not considered a primary limiting factor (though technologies that are known to be exorbitantly expensive were also intentionally avoided). In this design, some resource flows are handled in a highly distributed way (on the household level), and others are dealt with more centrally. The jetty and walkways on both sites are used to house many of the core community-level technologies, such as the wastewater purification system, heat storage, and waste digestion units. KEY FEATURES › › Technologies included in the design are available from EU, US, and Chinese suppliers. Chinese technologies are typically less expensive. European alternatives are oſten more durable. Communal infrastructure is centralized in the jetty, with flexible hook-ups for adjacent houseboats. Greenhouses are placed over each houseboat for food production, water collection, heat capture, and energy generation. This significantly reduces heat demand. › Smart Home IT systems and visual feedback of resource use plays an important role in managing resource use and reducing the demand for energy. FINANCIAL AND OPERATIONAL FEASIBILITY In this scenario, many of the suggested technologies are automated, reducing user involvement and increasing operational feasibility. Some of the suggested technologies are not cheap. High quality solar panels and batteries can be expensive. However, all of the recommended technologies are very stable. 120 / 146 Pagina 119
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