Phase II of Semnan Power Plant: 1st Gas Unit Synchronized in Record Speed

MANPA MD-1 Company managed to synchronize the first gas unit of phase II of Semnan Power Plant to the national grid at a record-breaking speed.

Adding 183 MWs to the country’s national grid, the project of this unit concluded 120 days after its initiation, setting a new record in the country.

This is the first unit of the grand plan to supply 10,000 MWs to the country’s industrial section.

The contract for the development of this phase was signed between MAPNA Group and Mines and Metals Development Investment Company (MMDIC) on December 20, 2021.

Saman Semnan Power Generation Company is the client of the project and MAPNA Power Plants Construction & Development Company (MD-1) is the contractor.

The EPC deal stipulates design, engineering, procurement, installation and commissioning of two advanced gas units equipped with MAPNA’s own E-Class MGT-70(3) gas turbines with a nominal capacity of 366MW at ISO conditions.

This was the fourth unit synchronized by MD-1 in the [Persian calendar] year 1401 (March 2022-March 2023) and the 182nd unit in total.

The project also set other records as it took 27 days from the start of installing LCC to connecting power to DCS, 19 days for completion of water flushing, 6 days from the start of oil flushing to turning gear, 4 days from the start of IO check to turning gear, and 8 days from connecting power to the transformer to synchronization of the unit.    

The plant is located 10 km from Semnan on the road to Damghan. All the units of the power plant have been delivered to the client on provisional (PAC) basis.

The first phase of Semnan Power Plant comprised two gas units with a capacity of 162 MW each (324 MW in total) at ISO conditions.

MANPA MD-1 Company started construction operations of the power plant’s first phase on January 15, 2009, and the first unit of the power plant was synchronized to the grid on December 25, 2010, about two years after the launch of the project.

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