Solar’s growing share of the energy mix is being driven by better storage capacity and attractive generation costs. Large solar parks are now competitive with most alternatives; their average cost is below 5 cents per kilowatt-hour in some developing countries. Smaller-scale solar grids are also getting more competitive, opening new paths to financing this clean energy source. With rapid improvements in energy efficient lighting, refrigeration, water pumps, and other technologies for households, solar may soon be as game-changing as mobile phones have been in the last decade.
Solar’s potential is evident from its quick growth in India, where installed capacity recently topped 20 gigawatts (GW), putting the country closer to its ambitious target of 100 GW from clean energy by 2022 (an amount comparable to total installed capacity in the United Kingdom).