The Hengam power project, also known as the Bandar Abbas power project, is a 906MW gas-fired combined-cycle power generating facility under construction in the Hormozgan Province of Iran.
Owned by Iran Thermal Power Plant Holding Company, an enterprise of the Iran Government, the project is being developed through an engineering, procurement, and construction (EPC) awarded to MAPNA Development Company Three (MD-3) consortium that comprises MAPNA Group, MAPNA International Company, and MAPNA Special Projects Construction and Development Company.
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While the main civil construction works on the £390m ($555m) project was started in October 2017, the first gas unit of the plant was synchronised and connected to the National Electricity Network of Iran in January 2021.
Location and site details
The Hengam combined-cycle power project is located in the west of Bandar Abbas city, in the Hormozgan province of Iran.
The 42-ha project site lies approximately 10km away from the Bandar Abbas road connecting the port of Shahid Rajaei on the Persian Gulf coast.
Hengam combined-cycle power plant make-up
The Hengam gas-fired power project comprises a single combined-cycle power block equipped with two SGT5-4000F gas turbines, one steam turbine, and two heat recovery steam generators (HRSGs) from Siemens.
While each F-class gas turbine of the plant has a rated power output of 307MW, the steam turbine is designed for a rated output of 292MW.
The plant will operate with 58% efficiency in combined cycle mode using a once-through, single-pass cooling system.
The project also includes main and auxiliary cooling systems, a water treatment facility, gas unit panels, final filter skid for gas processing, and a 400kV gas-insulated substation.
The main electrical and instrumentation package for the main power block consists of power control centre (PCC) containers, medium voltage (MV) Busduct, auxiliary transformers, generator circuit breaker (GCB), field instruments, cable trays, ladder, and accessories.
The balance of plant (BOP) comprises medium voltage (MV) and low voltage (LV) switchgears, battery and battery chargers, UPS and AC/DC panels, two sets of emergency diesel generators, apart from an earthing system and the fire stop equipment.
Power evacuation
The electricity generated by the Hengam combined cycle power station will be evacuated into the National Electricity Network of Iran through a 400kV power transmission line.
Contractors involved
MAPNA Development Company Three (MD-3) consortium was engaged as the engineering, procurement, and construction (EPC) contractor for the Hengam combined cycle power project. The project scope also includes design, installation, testing, and commissioning services.
Monenco Iran Consulting Engineers was subcontracted by MAPNA Special Projects Construction and Development Company for the engineering, design, vendor review, and 3-D modelling of electrical, mechanical, control and instrumentation equipment. The contract scope also included the design of ancillary systems including the balance of plant (BOP) buildings, structures, and associated facilities.
Siemens signed a five-year agreement with MAPNA Group in March 2016 for the technology transfer of F-class turbines and generators. Under the agreement, MAPNA subsidiaries Turbine Engineering and Manufacturing Company (TUGA) and Turbine Blade Company (PARTO) were responsible for manufacturing the F-class turbines.
Ghods Niroo Engineering Company was contracted for the supervision services, while Rastak Pouya Engineering Company was subcontracted by MAPNA Development Company Three in 2019 for the installation and pre-commissioning activities of the main power block as well as the balance of plant (BOP) electrical and instrumentation components.
Thielmann Energietechnik supplied four pieces of dust liquid separator (final filters) designed at 47bar with a flow rate of 85.850Nm3/h in October 2016.
Nasab Niroo Company was subcontracted for the manufacturing and supply of steel frames for the project.
