The massive increase in production and consumption of fossil fuels during the 20 th century was accompanied by several problems in economic, social and environmental levels. Thus, the energy as it is produced, distributed and consumed currently does not meet the requirements of sustainable development. Hence it is necessary to use RE that do not emit GHG in order to move toward the sustainable development. Since mid-1980s, Tunisia has implemented its national strategy in the field of RE. To revive the market of solar water heating, the government decided to establish, in 2005, an ambitious program called PROSOL. With the help of case study (PROSOL project), the paper shows that the contribution of RE to the economic, social and environmental dimensions of sustainable development is significant.

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