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Some Facts about Solar Water Heater (SWH)

• Solar energy (sun rays) is used for heating water. Water is easily heated to a temperature of 60-80 C.
  

• Solar Water Heaters (SWHs) of 100-300 liters capacity are suited for domestic use.
  

• Larger systems can be used in restaurants, canteens, guest houses, hotels, hospitals etc.
  

• A 100 liters capacity SWH can replace an electric geyser for residential use and may save upto 1500 units of electricity annually.
  

• The use of 1000 SWHs of 100 liters capacity each can contribute to a peak load saving of approximately 1 MW.
  

• A SWH of 100 liters capacity can prevent emission of 1.5 tonnes of carbon dioxide per year.
  

• Subsidies are provided by Government of India. Beneficiaries from all types of categories can avail loan at 5% interest on 80% of the bench mark cost.
  

• Benchmark Cost:  
  

• ETC based system: Rs 10,000 / sq.m.
  

• FPC based system: Rs 11,000 / sq.m.
  

• Usage of Solar Water Heater for any application where steam is produced using a boiler or steam generator can save 70-80% of electricity or fuel bills.
  

• A resident can save 70-80% on electricity or fuel bills by replacing its conventional water heater with a Solar Water Heater.
  

• Solar Water Heaters are known to have the fastest repayment of investment.