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2. Solar water heating - Wikipedia

   en.wikipedia.org/wiki/Solar_water_heating

   The tested SWH system had about 20% of the impact of an electrical water heater and half that of a gas water heater. [50] Analysing their lower impact retrofit freeze-tolerant solar water heating system, Allen et al. (qv) reported a production CO 2 impact of 337 kg, which is around half the environmental impact reported in the Ardente et al ...

3. Solar thermal energy - Wikipedia

   en.wikipedia.org/wiki/Solar_thermal_energy

   Roof-mounted close-coupled thermosiphon solar water heater. The first three units of Solnova in the foreground, with the two towers of the PS10 and PS20 solar power stations in the background. Solar thermal energy ( STE ) is a form of energy and a technology for harnessing solar energy to generate thermal energy for use in industry , and in the ...

4. Passive solar building design - Wikipedia

   en.wikipedia.org/wiki/Passive_solar_building_design

   Passive solar building design. This image shows the characteristics of a Passive Solar home and its benefits. In passive solar building design, windows, walls, and floors are made to collect, store, reflect, and distribute solar energy, in the form of heat in the winter and reject solar heat in the summer. This is called passive solar design ...

5. Solar desalination - Wikipedia

   en.wikipedia.org/wiki/Solar_desalination

   Water production is proportional to the area of the solar surface and solar incidence angle and has an average estimated value of 3–4 litres per square metre (0.074–0.098 US gal/sq ft). [2] Because of this proportionality and the relatively high cost of property and material for construction, distillation tends to favor plants with ...

6. Solar-powered Stirling engine - Wikipedia

   en.wikipedia.org/wiki/Solar-powered_Stirling_engine

   NASA patented a type of solar-powered Stirling engine on August 3, 1976. It used solar energy to pump water from a river, lake, or stream. [1] The purpose of this apparatus is to “provide a low-cost, low-technology pump having particular utility in irrigation systems employed in underdeveloped arid regions of the earth…[using] the basic principles of the Stirling heat engine“.

7. Central solar heating - Wikipedia

   en.wikipedia.org/wiki/Central_solar_heating

   Central solar heating is a sub-class of 'large-scale solar heating' systems - a term applied to systems with solar collector areas greater than 500 m 2 . Aquifers, boreholes and artificial ponds (costing €30/m 3) are used as heat storage (up to 90% efficient) in some central solar heating plants, which later extract the heat (similar to ...