The average price of electricity sold on the Indian Energy Exchange rose to Rs 3.22 per unit in December even as volumes remained mostly flat in the same month.
The day-ahead market saw trading of 2,409 million units of electricity last month almost similar to that witnessed in November 2013, according to IEX.
In December, the total purchase bids stood at 3,800 million units while the sale bids touched 3,812 million units.
"The average (market clearing) price for the month of December remained at Rs 3.22 per unit, reflecting an increase of 16 per cent over the price last month," IEX said in a statement today.
In November, the price stood at Rs 2.78 per unit of electricity.
"Transmission congestion, especially in the Southern corridor remained severe across the month adversely impacting the quantum of power traded in the short-term power market via exchanges," the statement said.
Last month, on an average 1,091 participants traded in the day ahead spot market.
IEX is a leading power exchange in the country.
