India's ambitious solar energy mission, the centrepiece of its activities to combat climate change, will aim to generate 20,000 MW of solar power by 2022, Prime Minister Manmohan Singh announced here Monday.

Launching Jawaharlal Nehru National Solar Mission "Solar India", the prime minister said: "The target of 20,000 MW of solar generating capacity by the end of the 13th Five Year Plan (2018-2022) is no doubt an ambitious target. But I do sincerely believe that the target is doable and that we should work single-mindedly to achieve it as a priority national endeavour."