Concept:Among all non-conventional energy sources, solar energy is the most important for India because of its enormous potential and round-the-year availability.
Explanation:India is a tropical country that receives bright sunshine for nearly
300 days every year.
The estimated solar energy potential of India is about
300GW, which is much higher than other non-conventional sources.
Wind power has an estimated potential of about
75GW, but it is limited to specific coastal and high-altitude regions.
Bio-gas has a potential of around
25GW, but its production is restricted by a lack of infrastructure and technology.
Geothermal energy has only about
1GW of potential and is feasible only in a few specific areas of India.
Solar energy is clean, renewable, and easily scalable, making it the best option for India's growing energy needs.
Government programmes like the National Solar Mission also give solar energy the highest priority.
Answer:Solar energy (Option A)