New Delhi, June 13 -- Delhi residents are likely to see a modest increase in their electricity bills after the Delhi Electricity Regulatory Commission (DERC) on Friday allowed power distribution companies (discoms) to raise a surcharge used to recover higher power procurement costs, with the biggest impact falling on consumers in east and central Delhi served by BSES Yamuna Power Limited (BYPL). The increase relates to the Fuel and Power Purchase Adjustment Surcharge (FPPAS), a variable charge that allows discoms to recover sudden increases in the cost of buying electricity. DERC on Wednesday approved higher surcharge limits for April 2026, citing a sharp rise in power purchase costs driven by higher fuel prices and global market uncertainties. For consumers, the change is likely to translate into a modest increase in monthly bills. A household with a sanctioned load of 2 kilowatts (kW) and a monthly consumption of 600 units in a BYPL area may see its electricity bill rise by around Rs.170 - from about Rs.3,766 to Rs.3,936. In areas served by BSES Rajdhani (BRPL), the increase for a similar consumer would be about Rs.102, taking the bill from roughly Rs.3,850 to Rs.3,952. Consumers in areas served by Tata Power Delhi Distribution Limited (TPDDL), which covers much of north Delhi, are unlikely to see any significant change as the approved increase there is marginal. Officials stressed that consumers receiving Delhi government electricity subsidies will not be affected by the move because the subsidy is linked to the number of units consumed rather than the total bill amount. Electricity tariffs approved by DERC are based on projected costs of purchasing power. However, the actual cost of electricity generation can fluctuate....