Unintended Consequences of India's E20 Push

Gist The Union government has rapidly scaled up the retail of E20 blended petrol to reduce crude oil dependence and curb carbon emissions amid volatile global energy markets. However, empirical data indicates that the lower energy density of ethanol causes a notable drop in vehicle mileage, forcing consumers to purchase more fuel to cover the same distance and potentially increasing net tailpipe emissions. For civil services aspirants, this highlights a critical policy trade-off where an energy security initiative inadvertently triggers consumer inflation, threatens food security via crop diversion, and offsets intended foreign exchange savings. Background The Ministry of Petroleum and Natural Gas introduced the E20 blend —consisting of 20% anhydrous ethanol and 80% motor gasoline —at select retail outlets on February 6, 2023 . Ethanol blending is strategically driven by the need to buffer India against volatile global crude prices and reduce the massive foreign exchange outflow associated with oil imports. Scientifically, ethanol has a lower energy density than pure gasoline, meaning it releases less energy per litre burnt. Before this accelerated push, India primarily utilized an E10 blend ;…