Siemens Energy has received an order from the Netherlands for turnkey construction of a combined cycle power plant. Purchaser of the 435-megawatt (MW) plant Diemen 34 in the vicinity of Amsterdam is the Dutch utility Nuon, a subsidiary of Vattenfall A.B. Siemens will also handle plant maintenance. With an efficiency level as high as approximately 59 percent, maximized operating flexibility and low nitrogen oxide emissions the gas-fired plant will supply more than 750,000 Dutch households with ecofriendly power. The Diemen 34 power plant will also be capable of supplying as many as 25,000 households in the immediate vicinity with district heat by means of steam extraction. That is equivalent to a thermal capacity of approximately 260 MW.
After the power plant projects Sloe Centrale, and MaasStroom, Enecogen and Hemweg 9, this is the fifth order secured by Siemens in the Netherlands since 2007 for a turnkey combined cycle power plant. “This new order demonstrates that we enjoy a high level of trust in the highly demanding Dutch market. With our concept for fast-start combined cycle power plants offering fast load cycling and high efficiency levels we provide solutions that optimally supplement the increasing share of renewables in the energy mix and thus ensure high grid stability together with operating economy and ecofriendliness,” said Michael Suess, CEO of the Fossil Power Generation Division of Siemens Energy.
“Siemens combined cycle power plants based on F Class gas turbine technology attain efficiency levels of over 59 percent. The possibility of district heat extraction enables the achievement of a fuel utilization factor of over 85 percent, which reduces specific CO2 emissions by approximately 20 percent,” added Suess. Diemen will thus be one of the most ecofriendly and cost-effective combined cycle plants in the Netherlands.
In addition to turnkey construction Siemens will also supply the main components –- an SGT5-4000F gas turbine, an SST5-5000 steam turbine, an SGen5-2000H generator, the entire electrical equipment and an SPPA-T3000 I&C system. Siemens will also be responsible for maintenance of the gas turbine, steam turbine and generator.
High-efficiency combined cycle power plants offering maximized operating flexibility are part of Siemens’ Environmental Portfolio. In fiscal 2009, revenue from the Portfolio totaled about EUR23 billion, making Siemens the world’s largest supplier of ecofriendly technologies. In the same period, the company’s products and solutions enabled customers to reduce their CO2 emissions by 210 million tons. This amount equals the combined annual CO2 emissions of New York, Tokyo, London and Berlin.
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