In the Indian state of Gujarat, GE recently modernized the 200MW Bharat Heavy Electricals Limited (BHEL)-supplied, LMZ steam turbine (unit 4) at the 1,350-MW Ukai power station using its Advanced Steam Path (ASP) technology. The ASP modernization features high-pressure and intermediate-pressure full module upgrades and a low-pressure inner block upgrade.
Upgrade projects like these better position the country to meet future energy demands and challenges including backing up renewables. India’s New Policies Scenario project electricity demand more than tripling in the next two decades, rising by 4.9% per year on average from 900 terawatt-hours (TWh) in 2013 to almost 3,300 TWh by the end of 2040.
The Ukai project is a first-of-its-kind shaftline retrofit for BHEL 200-MW-class units in India, and is aimed at increasing power, efficiency, and reliability while also reducing emissions. Not only will the retrofit extend the unit’s life by 25 years, it will restore its output back to its original capacity of 200 MW.
Final tests at Ukai’s plant demonstrated more efficient operations that will help the plant reduce its coal consumption by more than 140,000 tons per year and reduce carbon dioxide emissions by 180,000 tons per year. These emissions reductions will provide environmental benefits equal to the amount of CO2 absorbed by approximately 732 square kilometers of forest per year (an area 35% bigger than India’s Corbett National Park) or equivalent to 162,000 Indian cars being taken off the road. In addition, reducing coal consumption will result in approximately $7 million USD savings for the utility every year.