State-run discom Tamil Nadu Generation and Distribution Corporation (Tangedco), on Tuesday evening touched an all-time high in wind power evacuation.
Against an installed wind energy generation capacity of 8,300MW in TN, Tangedco evacuated 4,600MW. Total wind power consumption in the state on Tuesday was 99.46 million units. This is the highest wind energy evacuation and consumption since the state started installing windmills in the 1980s.
Along with solar power, the state on Tuesday consumed 105 million units of renewable power of a total of 313 million units. Since the commissioning of dedicated transmission lines as part of a green corridor project -from Kayathar in Tuticorin district to Kancheepuram and the western districts -wind power evacuation has increased. Wind power is available mostly in the evening and early morning. "Last evening, the demand was high as the weather was hot. As the monsoon hit Kerala, the wind speed was high in Kayathar as well as Coimbatore. So we stepped up evacuation," a senior Tangedco official said.
Owing to availability of cheap wind energy , Tangedco has stopped purchasing power from private thermal power companies and has reduced generation in its own thermal units.
"Nearly 50% of our thermal units are on standby ," the official said. "Wind power is available at less than some of the thermal units' tariff. It will help Tangedco save money ." On the flip side, though Tangedco evacuated 4,600MW, savings will not be to the full extent. "Most wind power producers supply power to us and then in turn draw power from the grid when the season ends in October. Thus our total savings is not much," he said.
Chennai city hit a new high in power demand, at 3,346MW, on Tuesday.
"Evening is when the demand increases in Chennai city. Demand shoots up by nearly 1,000MW or more during the evening hours as the weather is humid. When residents return from offices, they switch on airconditioners in their houses. Due to this, power demand increases," the official said.
"We expect the demand to increase in the coming days if the weather continues to be humid," he said.
News Source : Times of India