Dutch energy company Nuon, a unit of Vattenfall, has opened two combined-cycle power plants in the Netherlands.
The new gas-fired plants, Hemweg 9 and Diemen 34, were constructed by Siemens Energy and have an efficiency of about 60%.
Both power plants have delivered their first electricity to the Dutch power grid since mid-2012.
Located in the Westport district to the west of Amsterdam's centre, the 440MW Hemweg 9 plant replaces the Hemweg 7 power plant, which was shut down in 2012.
The plant has the capacity to generate enough electricity for about 750,000 homes and reduces CO2 and nitrogen oxide emissions.
The 435MW Diemen 34 plant is located to the east of Amsterdam about 15km from Hemweg and will also supply electricity for about 750,000 households in the region.
Diemen 34 plant also has the capacity to generate thermal energy of about 260MW of district heat for Amsterdam, and will increase the maximum efficiency to 85%.
Siemens supplied each plant with an SGT5-4000F gas turbine, an SST5-5000 steam turbine, a hydrogen-cooled SGen5-2000H generator, complete electrical equipment, and an SPPA-T3000 I&C system.
The Hemweg 9 plant was designed to permit retrofitting with district heating in the future.
Siemens Energy gas turbine power plant solutions head Lothar Balling said both power plants provide customers with various economic advantages.
"Their high efficiency makes it possible to produce more electricity from the same amount of fuel," Balling added.
"The district heat extraction assures our customer of additional revenue and the extreme service friendliness of our equipment minimizes maintenance-related production losses."
Image: Hemweg 9 and Diemen 34 power plants delivered their first electricity to the Dutch power grid since mid-2012. Photo: Courtesy of Nuon.