Indian government has an ambitious plan to promote renewable /clean energy, but we must also consider the challenges in implementing the same. The target for renewable energy has been set at 175GW by 2022, out of which 100GW is to be by solar energy alone and the land requirement to achieve this target alone is going to be around 200,000 ha. Additional land shall also be required for 60GW wind projects. No need to say that such massive land acquisition would be quite a challenge especially in a country like India that faces a real test in feeding a population of about 1.25 billion, growing annually at 1.2%. On the other hand 100GW of solar projects would meet only 10% of the projected energy demand in 2022 since solar projects can generate energy only during daytime.reenhouse roof mounted solar projects could be a possible solution because of their multiple benefits to society and the Government.