DERC relaxes green power open access rules in Delhi, allowing businesses with 100 kW demand to buy renewables at any voltage and expand captive projects. Delhi's DERC lifts voltage limits, allowing commercial and industrial consumers with 100 kW+ load to easily access green energy, boosting renewable adoption. New Delhi, Oct 28 (PTI) Delhi's power regulator, DERC, has eased norms for commercial and industrial consumers to source green energy by lifting voltage-related limits.