This new capacity will be base-loaded and is intended to replace the inefficient heavy fuel oil burning aged plants.  Jamaica Public Service Company Limited (JPS) was awarded the right to go forward with the project.  The Old Harbour 190 MW Nominal combined cycle power plant is located approximately 75.6 kilometres (47 miles) from the city of Kingston near the community of Old Harbour on the south coast. 

The plant is adjacent to JPS’ existing Old Harbour facility, which currently has 220 MW of generation and houses major transmission and distribution operation along with a privately-owned diesel power plant (Doctor Bird I & II). The new plant proposed herein will consist of one (1) power block of nominal 200MW combined cycle plant. The block’s configuration consists of 3 combustion turbine generators x 3 heat recovery steam generators (HRSGs) x1 steam turbine generator.  The combustion turbines are dual fuel capable, however, they were commissioned with natural gas as the primary fuel.  They are also capable of using automotive diesel (ADO).  Each gas turbine unit is a 40 MW class, the steam turbine is a 75 MW class, providing nominal 180200 MW block size in the 3 x 3 x 1 combined cycle configuration.  The exhaust gas from the gas turbine is led to the associated HRSG for generating the steam which in turn will be fed to a common steam turbine generator.  The HRSGs are dual pressure, non-reheat type, with duct burners, in order to obtain optimum exhaust gas energy utilization based on thermo-economic considerations.