Published Online:February 2025
Product Name:The IUP Journal of Operations Management
Product Type:Article
Product Code:IJOM030225
DOI:10.71329/IUPJOM/2025.24.1.56-74
Author Name:Venkata Ravi Ram Pinninti and TVSK Bhanuprakash
Availability:YES
Subject/Domain:Management
Download Format:PDF
Pages:56-74
Gautami Combined Cycle Gas Turbine (CCGT) plant faced an adverse situation when after being operational for three years, gas supply was stopped due to falling volumes at the supplier-end. However, liquid fuel was available and it was required to be operated, if called upon to do so by the grid operator at a short notice. Forced into a mothballed state and with no revenues, the plant O&M team had to devise a preservation strategy. This preservation mothballed phase started in April 2013. Strategies to preserve the availability and integrity include use of dehumidifiers, blocking of parts of plant, periodic operation to conserve lubricating surfaces. The O&M team successfully took the plant out of preservation and made the asset operational. This paper discusses system-wise strategies that have been adopted in mothballing/ preserving CCGT power plants with particular focus on Gas Turbines (GT), and bringing them back online, successfully.
Increasing pressures on energy mix and reducing cost curve of solar and wind energy was pushing many Combined Cycle Gas Turbine (CCGT) plants into preservation/ mothballing.