conclusion for solar light and solar water heating system
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Answer:
Solar water heating (SWH) is the conversion of sunlight into heat for water heating using a solar thermal collector. A variety of configurations are available at varying cost to provide solutions in different climates and latitudes. SWHs are widely used for residential and some industrial applications.[1]
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 capacity is 472 GWth 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 capita.[3]