Phase I consists of a conventional thermal power plant with 5x118MW steam turbines, 9×470 t/hr. steam generators, 3xwet limestone Flue Gas Desulphurization (FGD) units and 16×504 m3/hr. Reverse Osmosis (RO) trains. All steam generators and turbines are connected through one common High-High Pressure (HHP) steam header. The steam turbines are backpressure cum condensing units with High Pressure (HP), Medium Pressure (MP) and Low Pressure (LP) steam extractions feeding respective steam headers. In addition, each turbine is supplying steam to a LP feed water heater. To increase operation flexibility and cater for emergency situations, the headers can also be supplied through 100% redundant Pressure Reducing and De-superheating Stations (PRDS).
The steam generators are equipped with individual Electrostatic Precipitators (ESP) downstream the ESPs, the flue gas paths of three boilers are connected, discharging the flue gases to a wet limestone once through Flue Gas Desulphurization (FGD) plant before leaving the stack. The steam generators have a common fuel oil supply.
The reverse osmosis plant consists of sea water pre-treatment and a three-stage reverse osmosis system suitably equipped with chemical dosing. Permeate water is discharged to storage tanks, from where it is finally distributed to the consumers in PRC and in the power plant. Brine is discharged to PRC, maintain all environmental limits.
Phase II consists of 2×120 MW steam turbines, 4×470 t/hr. steam generators, 2xwet limestone Flue Gas Desulphurization (FGD) units and 8×504 m3/hr. Reverse Osmosis (RO) trains. The similar design principle as mentioned above was applied, anyhow two boilers are discharging into one wet limestone cross flow – counter flow FGD.
Phase I and Phase II are interconnected on HHP, HP and MP steam levels, as well as the main 110 kV sub-stations. These facilities allow exchange of utilities between the two plants maximizing the reliability of supplied to PRC and operational flexibility. Phase II 110 kV main sub-station is connected to the SEC national grid for the purpose and import as well as export of power. In addition, the plants are provided with an interconnection of boiler feed water and instrument air system. All interconnections together are allowing to supply back-up utilities from IWSPP phase II to PRC Phase I in order to keep the most essential PRC phase I plants in services, respectively allowing a safe shutdown in the condition that IWSPP phase I would suffer a total plant shutdown.
Total Plant Capacity