High Tension (HT) industries here plan to approach the Appellate Tribunal for Electricity against the March 7 order of the Tamil Nadu Electricity Regulatory Commission regarding the Tamil Nadu Solar Energy Policy 2012.

An industry source here told The Hindu that the industries are studying the issues on which they plan to approach the appellate tribunal.

The HT industries already have nine per cent renewable energy purchase obligation, including 0.05 per cent from solar energy, for electricity purchased from third party or power exchange. According to the State solar energy policy, the solar purchase obligation till the end of December 2013 is three per cent for these industries and six per cent from January 2014.

Thus, the industries will have to comply with 15 per cent renewable energy obligation.

For the solar purchase obligation, they have options – they can purchase through the electricity board, have captive generation, buy from third party or purchase renewable energy certificate (REC) from solar energy generated in the State.

At present, the State does not have adequate solar energy capacity for the industries to buy from third party or the RECs.

Further, the TNERC order suggests that the six per cent solar purchase obligation is on the total consumption of energy from all sources. Hence, it will include the energy consumed by the industries from wind mills, bio-mass and co-generation plants, which are also a source of renewable energy, the source said.

These are some of the issues in the solar purchase obligation that will affect the industries. Though the units face 40 per cent power cut and more than 10 hours of load shedding a day, investments in solar systems will help meet just the lighting load. It cannot be used for production purposes, the source said.