Demand for electricity on the global electrification frontier

Falling off-grid solar prices and an expanding grid are revolutionizing choices for nearly a billion people without electricity. Using experimental price variation, we estimate demand for all electricity sources in Bihar, India, during a four-year period when electrification leapt from 27% to 64%. We find that: (i) household surplus from electrification increased five-fold; (ii) both solar and the grid boost electrification but households gain more surplus from the grid; (iii) grid investments and subsidies strongly reduce demand for off-grid solar. When we extend the model to eight African countries where grid infrastructure is weaker and subsidies lower we find that off-grid solar often provides higher surplus than the grid