Apr 16, 2010 | Amsterdam Nuon replaces production capacity at Hemweg location
Nuon has taken the investment decision for realisation of a new gas-fired power plant, Hemweg 9, at its existing Hemweg production location in Amsterdam. To this end, Nuon and Siemens have signed an engineering, procurement and construction contract and a long-term maintenance contract. The new power plant will replace the old gas-fired power plant Hemweg 7. Hemweg 9 incorporates the latest techniques is very efficient and environmentally friendly.
The new power plant is a CCGT (Combined Cycle Gas Turbine) unit. This type of gas-fired power plant has the highest available efficiency (circa 59%) and, among others due to the built-in unit for capturing nitrogen oxides (NOx), very low emissions.
The power plant will have a capacity of approximately 435 megawatt, equivalent to the supply of electricity to about 750,000 households. The new power plant will be prepared to supply heat, which will enable the total efficiency to be increased substantially in the future.
Siemens was selected by Nuon as the main contractor following a European tender procedure. The choice was made based on a combination of commercial and technical aspects.
It is expected that the construction of the power plant will start in June 2010 and that the plant will be operational end of 2012.
The unit to be replaced comprises a conventional part with a capacity of 511 MW which dates from 1979, and a gas turbine that was added in 1988. The conventional part of the new power plant will be closed no later than one year after the new power plant is in operation. The gas turbine will remain in operation for the supply of peak-hour capacity. On its own the gas turbine has a capacity of 145 MW. The coal-fired unit Hemweg 8, which dates from 1994, will remain in operation.
Facts
Steam and Gas (STEG) power plant Hemweg 9
435 megawatt
59% output, this is an increase of 50%
Per megawatt produced 30% fewer CO2 emissions
Per megawatt produced 80% fewer NOx emissions.
750,000 households
To be operational end 2012
The Hemweg plant comprises the coal-fired unit Hemweg 8 (630 MW) and Hemweg 7 (511 MW). The latter is to be replaced by the new STEG Hemweg 9 (435 MW) + gas turbine (145 MW). Total installed capacity: 1210 MW.
About Nuon
Nuon is an energy company whose 6,000 employees serve around 2,6 million consumers, businesses and organizations in the Netherlands and Belgium. Its key commitment is to supply energy that is reliable, affordable and as clean as possible. Nuon produces and supplies gas, electricity, heat and natural cooling and helps customers to reduce their energy use. The company is a subsidiary of Vattenfall AB.
