Sohar Power

Sohar

Operational Highlights

Capacity

The capacity of a plant is defined as the total electrical power (in MW) and water (in m3/day), which can be delivered by the plant under specific environmental conditions (Reference Site Conditions). The contractual capacity of Sohar plant is 585 MW and 6,250 m3/hr, constant over the 15 years period of the PWPA. 

Note : In 2015, Performance Test results on Natural Gas were derated due to HRSG#2 contamination issues,. After repairs, an Additional Performance Test in July achieved guaranteed levels.  Performance Test on Fuel Oil was not conducted

 

Availability

Availability is the amount of time the plant is technically capable of generating power and water as per specifications. Under the PWPA, Sohar plant shall be available for 100% of time in summer period; and 85% of the time for power and 87% of the time for water in the winter period.

The total power made available during 2017 was 4,682.4 GWh which works to an availability of 91.4%.  The total water made available during 2017 was 51,900,295 m3 which works to an availability of 94.8%.

 

Reliability

The reliability of the plant is the ability of the plant to deliver the declared availability, as per PWPA. Any failure to deliver the declared capacity will be treated as forced outage.  The objective of Sohar Power is to minimize these forced outages, in order to maximize its revenues. During 2017 the plant achieved reliability of 98.8% for power and 98.9% for water.

Plant Efficiency (Heat Rate)

The efficiency of the power plant is measured in terms of the amount of heat required to produce one unit of power.  The Contracted Heat Rate of the plant is 8,997 MJ/MWh for natural gas.

 

Utilization; Energy and Water Delivered

During the year 2017 the energy was delivered at a utilization factor of the power plant of 70.9%. The total water was delivered by the water plant at a utilization factor of almost 89.6%.

Evolution of statistics for power and water capacity made available by Sohar Power and amount delivered to the grid, since Commercial Operation Date of the Plant is depicted in the following charts.

Maintenance

Annual maintenance of all equipment was undertaken during the year. 

Based on their fleet experience across the world, the Original Equipment Manufacturers (“OEM”) of major equipment notify their users on various improvements or issues to be addressed in order to improve efficiency, safety or mitigate risks identified in their equipment.  SPC along with its Operator is working on a few such recommendations.

SPC and its Operator have diligently studied and rectified during the year various causes for fuel inefficiency, which led to unnecessary drain on profitability.  This is an ongoing exercise and due attention is being given to this aspect.

 

Other productivity and efficiency improvements to existing equipment, systems and processes have been implemented during the year and some others are being analyzed, jointly with SOMC.

 

Force Majeure

1.       Over the years, due to extraneous factors affecting its performance, SPC has raised Force Majeure claims on OPWP. The following have been agreed between OPWP and SPC to constitute Force Majeure events:

Sl. No.

Event

Year

Period

Affected facility

Equivalent hours

1.

Unavailability of Fuel

2006

12 days delay Oil in Stage-I & Stage-II Early Power Milestones

Entire Plant

288

2.

Cyclone Gonu

2007

June 6, 16:00 – June 7, 20:00

Entire Plant

28

3.

Red Tide

2009

a)   Jan 3, 19:00 – Jan 5, 10:00

b)   Jan 9, 00:00 – Jan 12, 19:00

Desalination Facility

99

4.

Red Tide

2009

a)   Apr 11, 06:30 – Apr 16, 06:30

Desalination Facility

107

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