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Siemens floating power plants will support New York's renewable energy strategy

SeaFloat power barges

Two SeaFloat power barges each equipped
with four SGT-A65 gas turbines.
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New York's demanding energy market

As New York's energy market changes, transitioning to more intermittent energy sources, New York City needs to maintain the reliability of its power supply while reducing potential emissions. The city – with more than 8.5 million inhabitants – is moving to obtain 70 percent of its energy from renewable sources by 2030. When solar and wind power can't meet the need, quick start peaking units like the Gowanus Generating Station will become even more important, especially in congested areas like Southwest Brooklyn. The new units will provide that reliability while reducing emissions and offering the flexibility to move the barges as needed. 
The four-barge Gowanus Station, with a current generation capacity of 640 MW, was originally installed in the early 1970s and is approaching the end of its service life. By replacing those barges with two modern floating power barges provided by Siemens, Astoria Generating Company will be able to retire the existing barges, reducing the total number of barges from four to two, and also retire two barges at the nearby Narrows Generating Station. Siemens will deliver eight SGT-A65 gas turbine generating sets – four on each barge – along with a Siemens control system. The turbines will run on natural gas as their primary fuel. 
"As a holistic solution, the new SeaFloat power barges will help reduce potential emissions in New York City and provide a reliable power supply by helping keep the local grid stable," said Karim Amin, CEO of Power Generation at Siemens Gas and Power. "SeaFloat combines the advantages of our high-quality proven power plant technology with the mobility and flexibility that's required in peak consumption periods."
Each SGT-A65 (Industrial Trent 60) aeroderivative gas turbine will deliver up to 76 MW for the Astoria project in simple cycle service at 41.8 percent efficiency. With its fast cold-start capability and high cyclic life, these engines can rapidly add power to the grid to compensate for fluctuating and variable renewable and other energy sources, making it an ideal solution for peaking markets. More than 115 of the SGT-A65 gas turbines have been sold worldwide with more than 1.8 million fleet hours of experience. 
Siemens and Astoria also signed a contract for a 20-year long-term service agreement that will help support the gas turbines' and generators' optimal operating efficiency. The contract includes service on parts, repairs, field services, program management, and offerings from Siemens' Omnivise Digital Services portfolio, including remote monitoring and diagnostics.
"As New York's energy market changes to rely on intermittent power sources like wind and solar, we need to ensure reliability. These state-of-the-art units will provide the quick-start energy production New Yorkers need while reducing potential emissions. And best of all, because they're on barges, they provide the needed climate adaptation, adjusting to sea-level rise and increased storm surges, and also can be moved if the power is needed elsewhere," said Mark Sudbey, CEO of Astoria Generating Company. 

Infographic: SeaFloat

Siemens floating power plants will support
New York's renewable energy strategy.
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SeaFloat solutions 

Variations of the SeaFloat power plants can be used as base load or emergency backup for existing power plants during peak loads or outages and to provide a fast power supply in the event of a humanitarian disaster. SeaFloat power plants can even be supplemented with a desalination plant to provide clean potable water that helps prevent disease. A wide range of gas turbine frames and combined cycle configurations are available so that an appropriate solution that meets specific requirements can be developed with customers.
The Siemens SeaFloat power plants use the company's proven and reliable equipment that's been adapted for application on floating devices. SeaFloat power plants can be moved to any site that's accessible by sea or major rivers and require almost no investment for land acquisition. SeaFloat has been designed to be as small as possible, and it's defined a new standard in power density. Because the plants' construction and a large portion of commissioning are performed using standardized equipment under strictly controlled conditions in the world's leading shipyards, a short lead time can be realized. Construction of the plant also doesn't interfere with any required onshore infrastructure like the installation of substations, transmission lines, and access roads. This allows for a significant reduction in the total time required for these kinds of infrastructure projects. Typical applications include the power supply for remote areas like islands, the development of industrial areas on shorelines or major rivers (for example, chemical and desalination plants), and brownfield applications.  
For further information on SeaFloat power plants, please see

For further information on Siemens Omnivise Digital Services, please see

For further information on Siemens Gas and Power, please see
Siemens Gas and Power (GP) is a global pacesetter in energy, helping customers to meet the evolving demands of today's industries and societies. GP comprises broad competencies across the entire energy value chain and offers a uniquely comprehensive portfolio for utilities, independent power producers, transmission system operators and the oil and gas industry. Products, solutions and services address the extraction, processing and the transport of oil and gas as well as power generation in central and distributed thermal power plants and power transmission in grids. With global headquarters in Houston in the U.S. and more than 64,000 employees in over 80 countries, Siemens Gas and Power has a presence across the globe and is a leading innovator for the energy systems of today and tomorrow, as it has been for more than 150 years.
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Siemens AG (Berlin and Munich) is a global technology powerhouse that has stood for engineering excellence, innovation, quality, reliability and internationality for more than 170 years. The company is active around the globe, focusing on the areas of electrification, automation and digitalization. One of the largest producers of energy-efficient, resource-saving technologies, Siemens is a leading supplier of efficient power generation and power transmission solutions and a pioneer in infrastructure solutions as well as automation, drive and software solutions for industry. With its publicly listed subsidiary Siemens Healthineers AG, the company is also a leading provider of medical imaging equipment – such as computed tomography and magnetic resonance imaging systems – and a leader in laboratory diagnostics as well as clinical IT. In fiscal 2018, which ended on September 30, 2018, Siemens generated revenue of €83.0 billion and net income of €6.1 billion. At the end of September 2018, the company had around 379,000 employees worldwide. Further information is available on the Internet at
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Susanne Weissmann

Siemens AG

Freyeslebenstr. 1
91058  Erlangen

+49 (9131) 17-37750