Major Projects

Riyadh Power Plant No.9 Combined Cycle (5,980 MW)

The combined cycle plant (PP9) has been built on a site of 3.2 million square meter about 54km east of Riyadh. This construction, together with an expansion of the existing PP 9 facility, made Riyadh the largest crude oil-fired power plant in the world. Arabian Bemco Contracting Company was awarded the project by SEC. Works Started in 1995,

Riyadh Power Plant No.10 Combined Cyle (4,600 MW)

On June 30, 2008 Arabian Bemco was awarded a S.R 11 billion (USD 3 billion) contract with SEC for a turnkey supply and installationof a 2,600 MW power geneartion plant (PP10) built on an area of 5 million square meter outside the capital of Saudi Arabia, Riyadh.This is a Greenfield project that will initially install 36 GTG simple cycle base loaded gas turbines on

Qurayyah Combined Cycle Project (4,600 MW)

On June 11, 2007, Arabian Bemco was awarded a SR 2.1 billion (USD 570 Million) contract with SEC to build the 2,500 MW Qurrayah Open Cycle Power Plant in the Eastern Province of KSA. Under the engineering, civil construction and mechanical erection package, Arabian Bemco will install gas-fired turbines at the plant supplied by

Riyadh Power Plant No.12 Combined Cycle (2,175 MW)

On May 16, 2012, Arabian Bemco signed a S.R 4.7 billion contract (USD 1.3 billion) with the Saudi Electricity Company to build a Grass Root Combined Cycle Power Plant in Riyadh, Saudi Arabia. The plant is located 100 KM West of Riyadh City. Once completed, the new grass root combined cycle power plant (PP12) will produce

Project Details
Value in SR

Project Description
THE CHILLER PLANT, the LARGEST DIRECT AIR COOLED SYSTEM IN THE WORLD has a total capacity of 21,000 tons supplied by 6 York centrifugal chillers, each with a capacity of 3,500 tons and driven by 7,000 HP, 13.8 KV, totally enclosed, water to air cooled motors .

Scope of Work

  • Bemco mechanical scope covered detailed engineering studies and coordination with the manufacturers - as every major item was custom made. The refrigerant piping was computer-analyzed for load conditions, stress levels and displacement at each support. This is followed by procurement, installation, testing and commissioning.
  • Each chiller is provided with dedicated primary pump with a capacity of 3,500 GPM and driven by 250 HP, 4160 V TEFC motor and a seventh standby pump.
  • The chilled water system is a variable flow. Primary-Secondary pumping system with the Primary pumps located inside the chiller plant and the Secondary distribution pumps located inside the Mosque pump room.
  • A 7 km. underground tunnel carries the chilled water at 42 deg.F. (5.6 deg.C.) through 36" diameter pre-insulated pipes from the chiller plant to the Mosque Secondary pumps, which distributes the chilled water on the 144 AHU's located in the Mosque basement.
  • After the pressure test (dry nitrogen 334 Psig), each system was then evacuated to less than 1,000 micron, measured by a high vacuum electronic thermocouple gauge and only then charged with R-12 refrigerant.
  • Each chiller is provided with its local automatic control panel with gauges and annunciators. A BACS panel, transmits this information to a central control room for remote monitoring of the chiller plant.
  • A separate 600 Ton "Emergency" Chilled Water System was installed to supply chilled water to the main chiller auxiliaries during initial and/or warm water start-up of the main chillers. The system is also connected to the standby power plant to cool the critical rooms in case of main power failure.

Other systems:

  • Compressed air system for plant instrumentation.
  • Halon fire protection system for electrical rooms.
  • Chemical feed systems for corrosion protection of the chilled water system.
  • Drainage Pumping systems.
  • A wetpipe hose rack for fire protection of the main plant areas.
  • A 20 MW standby power plant.
  • A BACS system to monitor all the equipment inside the plant complex.
Madinah, Saudi Arabia
225 Millions
Ministry of Finance
1986 to 1991

Relief System & Flare Gas System Qatif - Progress 2020

   Relief System & Flare Gas System Qatif - Progress 2020

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