Prime Minister Narendra Modi said on said that given the excesses of then industrial age, the world must turn to the Sun to pwer its future.“Today, when the energy sources and excesses of our industrial age have put our planet in peril, we must turn to Sun to power our future,” Modi said while jointly launching an International Solar Alliance with French President Francois Hollande at the Conference of Parties (CoP) climate summit that got underway here.This alliance of 122 countries lying between the Tropics of Cancer and Capricorn has been formed to collectively harness the power of the Sun.“In the Indian tradition, Sun is the source of all forms of energy,” Mnodi said.He said that “convergence of economy, ecology and energy should define our future”.“India has the capacity of four gigawatts (GW) and we have set a target of adding 100 GW of solar power by 2022,” the prime minister said.