Understanding the potential of renewable energy as one of the responses to mitigate greenhouse gas emission and to cope with climate change. Knowledge of the different sources of renewable energy and its application in small-sized installations. This type of small plants are particularly useful for rural areas where the national energy distribution network is not available. The use of improved biomass stoves can reduce deforestation caused by burning wood for cooking food. Improved biomass stoves can also enhance the by-products of agri-food sector and the residuals of the maintenance of public green area.