Pakistan has an abundance of sunshine throughout the year. The length of the shortest day of the year in Pakistan is about 9.5 hours. Even during the rainy season, there are very few cloudy days with continues periods of cloudy days extremely rare.
The conditions in Pakistan are ideal for the development of solar energy. However, its economic, technical and organizational problems are not easy to solve. The generation of electricity through this source is still in its experimental stage.
Based on a demonstration unit in 1974, a national Bio Gas program was launched in Pakistan in 1980-1. By 1985-6 more than 4000 biogas units were installed, but most of them are already in disuse.