The challenges were stark in the case of Adani Green (ADNA.NS), India's largest renewable energy company, which took nearly 3-1/2 years to strike supply deals with buyers for the entire 8 gigawatts (GW) of solar power capacity it won in a tender widely publicised as the country's biggest.

India's renewable energy output has seen growth, with solar generation reaching 115.97 TWh in 2023, up from 102.02 TWh in 2022, as per Global Data insights. However, renewables still account for only 21.6 per cent of the country’s total electricity generation, indicating that much work remains to meet the nation’s clean energy targets.

As the world shifts towards sustainable power, investing in renewable energy company stocks brings you growth potential. India, too, has entered a transition stage, and marches towards its green energy goals. Top green energy companies, with adequate support from the government, continue to be top picks for investors.