Solar Home System (SHS) - Climate Protection

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The potential of solar home system (SHS) to reduce green house gases has been highly discussed.

The following points below could be used to argue that SHSs could potentially reduce the green house gases:

Green House Gas (GHG) Reduction Potential

  • "Savings of 9 tonnes of CO2 equivalent GHG emissions within a 20-year period of use of one single 50 Wp SHS"; => 0.45 t CO2/year[1]
  • "Typical SHS of 10-50 Wp will directly displace roughly 0.15-0.30 tons of CO2 per year through fuel substitutions mostly of kerosene."[2]
  • "During a previous analysis of 8 case studies, it was found roughly 0.25 tons of CO2 per average system of 44 Wp per year would represent a conservative but reasonable global value. […] 70% of the analysed emission reductions were actually higher than 250 kg."[3]

Further Reading


  1. Posorski, Rolf et al.: Does the use of Solar Home Systems (SHS) contribute to climate protection?, 2002, Renewable Energy, Volume 28, Number 7, June 2003, pp. 1061-1080 (20).
  2. REPP: Steven Kaufman: Rural Electrification with Solar Energy as a Climate Protection Strategy, Research Report No. 9, 2000.
  3. Martens et al. (2001): Towards a streamlined CDM process for Solar Home Systems.