Solar water heating
Conversion of sunlight into renewable energy for water heating using a solar thermal collector
All edits by Kateryna Bila
A variety of configurations is available at varying cost to provide solutions in different climates and latitudes. SWHs are widely used for residential and some industrial applications.
A sun-facing collector heats a working fluid that passes into a storage system for later use. SWH are active (pumped) and passive (convection-driven). They use water only, or both water and a working fluid. They are heated directly or via light-concentrating mirrors. They operate independently or as hybrids with electric or gas heaters.[2] In large-scale installations, mirrors may concentrate sunlight into a smaller collector.
As of 2017, global solar hot water (SHW) thermal capacity is 472 GW and the market is dominated by China, the United States and Turkey.[3] Barbados, Austria, Cyprus, Israel and Greece are the leading countries by capacity per person.
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