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gas turbines

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Continuing its commitment to invest in its mature gas turbine fleets to keep them competitive in today’s dynamic energy marketplace, GE has announced the launch order for its new GT26 HE (high efficiency) gas turbine upgrade with Uniper for the utility’s Enfield Power Station in greater London.

The GT26 HE upgrade also marks other GE firsts:

• First upgrade that takes the best technologies and capabilities from GE’s industry-leading F and H class fleets to create a robust solution for GT26 power plant operators.
• First upgrade that blends both GE and Alstom’s technology and expertise across all major components of a gas turbine solution.

Key performance benefits include:

• Higher efficiency for combined-cycle power plants:
– 2+ percent base load increased efficiency, translating to as much as $4 million in fuel savings annually per unit.
– Up to 1 percent increased efficiency in part load, yielding up to $1 million in fuel savings a year per unit.
• Increased plant output from 15 megawatts (MW) up to 55 MWs per unit, improving revenue opportunities.
• Extended inspection intervals up to 32,000 hours, reducing long-term maintenance costs.

Helping revitalize Uniper’s Enfield power station

Uniper’s Enfield power plant in London will be the first site to install the new GT26 HE technology in 2020 with several significant benefits that GE expects to exceed. These benefits will include increased megawatt output, improved plant and gas turbine efficiency, and extended maintenance intervals and operating hours to enable Enfield to consistently elevate its position on the dispatch curve in the highly competitive U.K. power market and ramp up its annual operating hours.

H-Class technology infusion drives high-efficiency performance

The GT26 HE upgrade provides a leap forward in efficiency, output and maintenance interval extensions. It’s powered partly through advanced technology from GE’s flagship HA gas turbine, the largest and most efficient in the industry, with additive manufactured parts and innovations in aerodynamics, material science and combustion dynamics. It embeds technology breakthroughs across every major component of the GT26 frame—turbine, compressor and combustor—to take turbine performance to a new level, significantly decreasing fuel costs while increasing full-load output and extending maintenance intervals.

The new upgrade also features the best of GE’s research and development centers in both the United States and Switzerland, including unique engineering elements:

• A low-pressure turbine used in GE’s H-class technology.
• High-pressure turbine improvements to increase efficiency, utilizing GE’s F-class technology.
• Advanced combustor engineering incorporating additive manufactured parts to deliver high performance, reduce cooling requirements by approximately 15 percent and lower relative emissions.
• A new 3D aero-profile compressor configuration to provide best-in-class base-load and part-load performance.

Source: GE

Siemens continues to be on a successful course with its energy business in Argentina: the company has secured orders to supply a total of four turnkey industrial power plants to the country. Six SGT-A65 TR (former Industrial Trent 60) gas turbines will form the heart of two plants in the cities of Luján and Matheu in Buenos Aires Province in eastern Argentina. Siemens has also been awarded a contract to supply six industrial gas turbines of type SGT-800 for two power plants in Las Palmas and San Pedro in the cities of San Pedro and Zarate. Siemens’ customers are the two Canadian private equity companies Stoneway Capital and Araucaria Energy led by Roger Nores. They will operate the plants as independent power producers with the support of Siemens. The total order volume for Siemens is approximately USD 570 million. Siemens has also committed a USD 115 million loan to support the power plants’ construction.

These orders mark another major success for Siemens in Argentina,” explains José Aparicio, Vice President for the Sales Region Latin America in Siemens’ Power and Gas Division. “This is the first time we have sold a turnkey industrial power plant equipped with aeroderivative gas turbines, as well as long-term service. What’s more, these four power plants will help to alleviate the power shortages in Argentina and increase the security of power supplies“.

 

Siemens has also signed long-term service agreements for the four sites. These contracts include operation maintenance (OM) and long-term agreements for each location for a period of ten years and include operation and maintenance staff, remote monitoring, 24/7 helpdesk, overhauls, spare parts for stock and reliability guarantees. Siemens service and maintenance is centered on the company’s Digital Services for Energy portfolio, combining advanced data analytics with Siemens’ proven expertise to help customers fully realize the full potential of their power assets for improved reliability and profitability.

With an electrical generating capacity of 127 MW, the plant in Luján will be fitted with two SGT-A65 TR gas turbines and with two SGen5-100A-series electrical generators. The four model SGT-A65 TR turbines destined for the power plant in Matheu will provide a total electrical generating capacity of 254 megawatts (MW). The Las Palmas site will be equipped with four SGT-800 gas turbines with an electrical generating capacity of 202 MW. The other two SGT-800 gas turbines destined for the power plant in San Pedro will generate a total electrical output of 104 MW; commissioning for the four sites is scheduled for the end of 2017.

All the sites have the option to be retrofitted as combined cycle power plants in the near future. The SGT-A65 TR gas turbines are being manufactured as fast-track units at Siemens’ production locations in Mount Vernon, Ohio, in the United States, and in Montreal, Canada. The corresponding generators will be provided by the Siemens’ manufacturing facility in Erfurt, Germany. The SGT-800 gas turbines will be manufactured in Finspang, Sweden.

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Siemens is paving the way for the next level of efficiency with the development of its HL-class. In June 2017, Siemens announced the company will validate the technologies of its HL-class at Duke Energy’s Lincoln County site in North Carolina. Siemens is developing this class in an evolutionary development step derived from its proven SGT-8000H technology. The advanced Siemens HL-class gas turbines combine a series of new but already tested technologies and design features with the best of past experience – resulting in a technology carrier to the next level of efficiency and performance. The HL-class is clearing the way to efficiency levels beyond 63% with a mid-term goal to reach 65%.

Furthermore, Siemens is gaining speed to drive technological upgrades and competitiveness by transferring newly developed key technologies to its entire gas turbine portfolio. In the near future, all customers will benefit from further efficiency and performance increases. This approach is part of a series of activities to help Siemens’ customers compete in a rapidly changing market – working to significantly reduce lead and construction times through standardization and modularization.
The new Siemens HL-class consists of three engines: SGT5-9000HL, SGT6-9000HL and SGT5-8000HL. In simple-cycle operation the air-cooled SGT-9000HL gas turbine will provide a capacity of 545 MW for the 50-Hertz market and 374 MW in the 60-Hertz version. SGT5-8000HL will provide 453 MW in simple-cycle operation. All engines reach more than 63% combined cycle efficiency.

To achieve top performance, the turbines operate at high combustion temperatures. For this purpose, Siemens’ specialists have developed advanced combustion technologies, innovative multi-layer coatings, super-efficient internal cooling features as well as an optimized water-steam cycle. Furthermore, optimized sealings minimize cooling and air leakage. At the same time, evolutionary 3D-blading is enabling higher aero-efficiency for the compressor. Predefined and prefabricated solution elements as well as pre-selected vendors and products allow a significantly reduced construction time and a fast start for projects. The turbines are designed to plug in to Siemens’ digital offering for plant operators and utilities alike, incorporating connectivity to MindSphere, the cloud-based Siemens operating system for the Internet of Things. MindSphere offers access to powerful analytics from Siemens and its partners – using intuitive insights in engine operation and decision support to deliver benefits to customers.

Driven by digitalization, speed in technology development is rapidly gaining momentum in the power generation arena,” said Willi Meixner, CEO of the Siemens Power and Gas Division. “It took us 10 years from 2000 to 2010 to increase the efficiency of our combined cycle power plants from 58 to 60%, a further six years to reach 61.5% in 2016 and now we are taking the next step to 63% and beyond. That’s amazing. But we know that speed and efficiency alone are not sufficient – reliability and cost effectiveness of our solutions as well as partnership, support in financing and insurability are also key to our customers,” said Meixner.

To minimize customer risk, Siemens is following an extensive and thorough validation and testing approach. After component testing and prototype testing in Siemens-owned facilities, the company is now pursuing validation under real field conditions. “With the new HL-class our customers will be prepared for whatever digitalization brings in the future,” Meixner added.

Worldwide we see renewables are growing rapidly, but gas-fired power plants will still play a vital role in the energy mix for the next decades,” said Meixner. “With the growing share of fluctuation power from renewables, flexibility will be a key feature of gas turbines. Our HL-class offers a simple-cycle ramp-up of 85 MW per minute. Therefore, highly efficient and flexible gas turbines like our HL-class are the perfect fit to energy systems with a rapidly increasing share of fluctuating renewables,” said Meixner.

Source: Siemens

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In collaboration with the Chinese EPC partner Liyu, MAN Diesel & Turbo has won two further orders for CHP energy production in China. Based on MGT series gas turbines, the compact plants will be delivered to subsidiaries of the Chinese energy firm ENN Group.

One of the CHP plants, optimized for natural gas operation, will be used in an industrial zone in Dongguan City (Guangdong Province) and in addition to about 6 MW of electricity it will also provide 13 MW of heat. With the same performance data, the second CHP plant will supply a paper mill in Huaian (Jiangsu Province). Surplus heat from the gas turbine alternator packs will be utilized with high efficiency and will benefit the local production processes in the form of process steam.

 

MAN Diesel & Turbo now has a number of projects in the People’s Republic in which its CHP technology has replaced the former energy production based on coal. Through the changeover to natural gas fuel and efficient utilization of surplus heat, these projects are supporting the targets set by the Chinese government for increasing efficiency and reducing emissions. The success of MAN MGT gas turbines is reflected by numerous orders placed by end customers in China as well as Germany.

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Lower customer costs, regional economic growth, increased efficiency and flexibility are potential benefits of a recent agreement between Duke Energy and Siemens. Duke Energy has submitted plans to the North Carolina Utilities Commission (NCUC) for expansion of its Lincoln County Combustion Turbine (LCCT) generation site. The proposal includes Siemens as the Engineering, Procurement and Construction (EPC) contractor for the project, including supply of the advanced gas turbine unit.

Approximately 400 MW of peaking energy will be needed to meet Duke Energy customers’ needs in the Carolinas by 2024. Approval for early construction provides Siemens with an opportunity to build and test its newest gas turbine technologies in time to meet that need. Following construction, testing and validation, the new unit will be turned over to Duke Energy for operation. The proposed unit would be the most efficient combustion turbine in the Duke Energy fleet and around 25 percent more efficient than the existing Lincoln County turbines.

 

This new technology will provide Duke Energy with flexible peaking power needed to complement intermittent solar energy resources for its customers and lower emissions across its fleet.

Pending regulatory approval, construction could begin as early as mid-2018, with gas turbine testing beginning in 2020 on Duke Energy’s 746-acre site near Denver, N.C. The site currently houses 16 gas-fueled, simple-cycle combustion turbines capable of generating 1,200 MW during short periods when customers’ needs are highest.

The Lincoln County site, completed in 1995, includes existing infrastructure such as access to natural gas and transmission connections, making it suitable for expansion.

Source: Siemens & Duke Energy

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Siemens has completed extensive service operations on the gas turbines at Jebel Ali K-station in a record time of only 29 working days, a notable accomplishment for a project of this scale. The power plant is located in Dubai and owned by Dubai Electricity and Water Authority (DEWA) and in operation since 2002.

The outage featured the application of the “rotor-swap”; a pioneering concept that has been developed by DEWA to utilize a spare rotor and other critical parts, stored at the plant’s site, to maximize each unit’s availability and reduce idle time while waiting for the completion of rotor assembly work.

 

Under terms of the agreement, Siemens provided supervisory services for three of Jebel Ali K-station’s gas turbines to enable further efficient and reliable operation for approximately 100,000 hours – equivalent to about 15 years. The upgrades also increased power output by 62.6 MW and improved power plant efficiency by about 0.5 percent.

After a certain number of operating hours, all gas turbines need to be dismantled for maintenance services. Typically, an outage of this kind would take up to 45 working days to complete, involving over 100 personnel with different areas of technical expertise. By implementing a newer outage concept, Siemens was able to perform the services within just 29 working days, setting a new benchmark in the global power service industry.

Recently, Siemens and Dubai Electricity and Water Authority (DEWA) have signed an agreement to collaborate on an advanced data-driven project. Siemens and DEWA are working together to identify ways to improve thermal efficiency, provide cost-effective solutions for performance optimization, manage costs and reduce fuel consumption and emissions.

Source: Siemens

The municipality of Pesquería (Nuevo León) in the north of Mexico, has been undergoing fundamental change for years. The arrival of a range of industries, above all steelmaking, has turned it into an area of rapid industrial growth, primarily driven by the Ternium Industrial Centre which is attracting more professionals and technicians from different industries. And one element that is making Pesquería a still more attractive option is about to kick off: the Pesquería Power Plant will come on line in the next weeks, a 900 MW combined-cycle plant that will generate enough energy to supply different industrial factories. The plant incorporates efficient gas turbines from GE, however one of its distinguishing features lies in its water treatment system.

Located in the vicinity of the Ternium Industrial Centre, the Pesquería Power Plant project is one of the drivers behind the development of the municipal district after which it is named and benefits from a roads and services infrastructure essential for industry. Pesquería is in Mexico’s top ten power plants in terms of capacity. As regards its configuration, Pesquería is a combined-cycle power generation plant with three gas turbines and one steam turbine that supply power to the industrial premises of the Grupo Techint in Mexico, as well as to nearby industries, thereby supporting the region’s growth.

Present in Mexico since 1954, Grupo Techint comprises TenarisTamsa, Ternium, Techint Ingeniería y Construcción, Tecpetrol, Tenova and Exiros, leading companies at global and regional level in the steelmaking, energy, construction and technology sectors. Some of these companies have taken part in the development of this project, including Tecpetrol, TenarisTamsa and Techint Ingenería y Construcción, the latter being responsible for its construction. Read more…

Article published in: FuturENERGY October 2016

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Siemens has been awarded a 25-year long-term service agreement for the planned Umm Al Houl combined cycle power plant in Qatar. The customer is Umm Al Houl Power Q.S.C., a company established through a partnership among Qatar Electricity and Water Company (QWEC), Qatar Petroleum (QP), Qatar Foundation (QF) and K1 Energy (joint venture established by Mitsubishi Corporation and TEPCO Fuel & Power, Incorporated).

The service agreement covers the plant’s six SGT5-4000F gas turbines, four SST5-4000 steam turbines, 10 SGen5-1200A generators including instrumentation and controls service for a period of 25 years. It also provides for an electrical and a resident engineer to be located on-site.

The long-term service agreement is designed to improve the operating capabilities, flexibility and profitability of the Umm Al Houl power plant by boosting efficiency, reliability and availability throughout its entire lifecycle. The agreement will enable implementation of innovative service solutions through preventative maintenance, shortened lead times and on-site technical field assistance.siemens2

The new power plant will be located 15km south of the capital Doha, adjacent to Qatar Economic Zone. The plant will consist of two power blocks, each in a 3+2 configuration. Each block will consist of three gas turbines which will be used to generate the steam to drive two downstream steam turbines. With a total electrical output of 2.5 GW, and up to 618 million liters of drinking water per day, the plant will deliver almost one quarter of the nation’s installed power generating capacity. It will ensure adequate power and water supply to accommodate seasonal fluctuations and major events. Commissioning of the first phase is scheduled for 2017, with commissioning of the entire complex scheduled for mid-2018.

 

Source: Siemens

Siemens has signed binding agreements for a substantial expansion of three existing thermal power plants with Ende Andina SAM of Bolivia. These contracts follow a Memorandum of Understanding (MoU) from November 2015 and were signed in the presence of Bolivia’s President, Evo Morales and Joe Kaeser, President and CEO of Siemens AG. Total power generation capacity of the combined cycle power plants Termoelectrica del Sur, Termoelectrica de Warnes and Termoelectrica Entre Rios, owned and operated by ENDE ANDINA, is set to increase by more than one Gigawatt (GW).

“Siemens is supporting Bolivia’s ongoing efforts to improve access to electric power of its growing population and developing economy,” said Willi Meixner, CEO of Siemens’ Division Power and Gas. “With these binding agreements for three combined cycle power plants we have taken another important step in this direction and help Bolivia to protect its energy sovereignty,” Meixner added.

The Siemens scope of supply comprises 14 SGT-800 gas turbines, 11 SST-400 steam turbines with condensers, 22 steam generators and the instrumentation and control system SPPA-T3000. TSK, a Spanish industrial group, will be responsible for civil works, balance of plant, delivery of high-voltage substations as well as for the mechanical and electrical erection of the projects.

Termoelectrica del Sur thermal power plant in the south of Bolivia near the border to Argentina will be equipped with additional four SGT-800 gas turbines, four steam turbines and eight steam generators.

The second plant, Termoelectrica de Warnes is located in the province Warnes in Bolivia’s Santa Cruz department. It will be expanded by four SGT-800 gas turbines, four SST-400 steam turbines and eight steam generators.

For the Termoelectrica Entre Rios power plant located in Cochabamba, 220 kilometers southeast of La Paz, Siemens will supply six SGT-800 gas turbines, three SST-400 steam turbines and six steam generators.

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The fleet of Siemens H-class high-efficiency gas turbines achieved more than 200,000 operating hours in January 2016. There are currently 19 turbines in the SGT-8000H series in commercial operation, and they are setting the standard for efficiency, reliability, and availability. Siemens has sold a total of 76 H-class gas turbines worldwide to date: This makes it the most successful gas turbine in this efficiency category on today’s world market.

Since introducing this turbine onto the market in 2010, Siemens has sold 39 of the turbines on the 50-Hertz (Hz) market worldwide. The largest single order to date for the SGT5-8000H turbine has come from Egypt, where a total of 24 H-class engines are being installed in the Beni Suef, Burullus, and New Capital power plant projects. Siemens has also sold 37 turbines worldwide on the 60-Hz market. The most recent order for two H-class turbines came from Mexico in January 2016 for the CFE Empalme II combined cycle plant. The SGT-8000H turbines are manufactured in Berlin, Germany, and Charlotte, U.S. and shipped from these locations to sites around the globe.

The first SGT5-8000H gas turbine entered commercial operation in 2011 in Irsching near Ingolstadt, Germany, with the next SGT6-8000H units for the 60-Hz market following in 2013 at the Cape Canaveral power plant in Florida, U.S. and the Dangjin 3 plant in South Korea. Siemens is investing its expertise acquired from 200,000 operating hours, or roughly 23 years of operation, in the continuous development of the H-class machines.

“The SGT-8000H achieves a very high degree of efficiency and is marked by short startup times and fast load-changing capabilities,” said Theo Maas, head of Large Gas Turbines and Generators in the Siemens Power and Gas Division. “The turbines have proven themselves extensively in daily power plant operation after more than 200,000 hours of operation: The reliability of the SGT-8000H fleet is over 99 percent, and availability is over 96 percent.”

Combined cycle power plants equipped with SGT-8000H gas turbines achieve an efficiency level of over 60 percent. The Lausward combined cycle plant at the Düsseldorf port has set three new world records at once: The power plant with the SGT5-8000H gas turbine as its key component achieved a net efficiency level of about 61.5 percent, with a maximum net electrical generating capacity of 603.8 megawatts (MW). The plant is also able to provide 300 MW(th) of heat for the city of Düsseldorf’s district heating network. The installation of an H-class gas turbine in this kind of combined heat and power plant (CHP) has proven to be one of the most efficient ways to convert fuel into usable energy. The high fuel efficiency of the plant plays an important role in meeting economic requirements and reducing the environmental impact.

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