Tata Power is one of the three power distribution companies in Mumbai, the other two being BEST and Reliance Infra. All of them have to get their power tariffs approved from the regulatory commission. In a major tariff shock to residential consumers of Tata Power in the city, the state electricity regulatory commission on Saturday approved a 25% increase in tariff for the year FY14.

Maharashtra Electricity Regulatory Commission (MERC) has approved an average increase in tariff to Rs 5.26 from the existing Rs 4.19 for FY14 for residential consumers, which will be effective from July 1.

Tata Power is one of the three power distribution companies in Mumbai, the other two being BEST and Reliance Infra. All of them have to get their power tariffs approved from the regulatory commission.

The Commission has approved the multi-year tariff plan till 2016 of Tata Power and allowed an increase of 25 per cent for FY14, 15 per cent for FY15 and 11 per cent for FY16 for residential consumers.

For FY15, the average tariff for residential consumers has been increased to Rs 6.07 while for FY16, the Commission has approved an increase in tariff to Rs 6.74.

Tata Power had proposed an increase of Rs 6.44 for 2014-15 and Rs 7.02 for FY16.

According to the new tariff plan for FY14, consumers in the below poverty line category will have to pay 10 paise per unit, while the tariff for 0-100 units has been fixed at 26 paise, 101-300 units at Rs 1.85 and for those consuming above 500 units, the tariff has been fixed at Rs 5.91.

The wheeling charges for all the categories has been fixed at Rs 1.87 per unit.

For FY 15, the tariff will be revised to 41 paise for those consuming below 100 units, Rs 2.05 for up to 300 units, Rs 5.23 up to 500 units and Rs 7.01 for those consuming above 500 units.

The wheeling charges for all the consumer categories will be Rs 2.08 per unit.

MERC has, for the year 2015-16, increased the tariff for BPL consumers to 47 paise. For those consuming below 100 units will have to pay 81 paise per unit, while the tariff for up to 300 units has been revised to Rs 2.75, Rs 6.38 fro up to 500 units and Rs 8.46 for above 500 units.

The wheeling charges for the year has been fixed at 1.81 per unit.

The Commission has also revised tariff for low tension commercial as well as high tension consumers for the period.

The impact of cross subsidy surcharge for consumers migrating from RInfra network to Tata Power is, however, not clear in the tariff order.

The Appellate Tribunal for Electricity had recently stayed the MERC order on increasing the cross subsidy surcharge payable by Tata Power consumers migrating from RInfra's network.