While China’s push to modernize sparked a surge in burning coal, India is turning to increasingly cheap solar to meet its booming energy needs. Though it faces big hurdles, including a rickety grid, India’s solar buildout could soon be a model for other emerging economies.

India’s rapid solar expansion is creating an unusual crisis where electricity prices on the Indian Energy Exchange briefly fell to zero in May because solar generation exceeded…

While China’s push to modernize sparked a surge in burning coal, India is turning to increasingly cheap solar to meet its booming energy needs. Though it faces big hurdles,…