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power plant

Siemens Finland has created a new business to expand its virtual power plant activity: Vibeco (Virtual Buildings Ecosystem) is an innovative approach to increase the benefits of increasingly decentralized energy systems. The heart of the virtual power plant is a software platform, operated by Siemens, that intelligently balances electrical loads from buildings that have been connected in a microgrid,
incorporating renewable energy and energy storage.

The new virtual power plant (VPP) service platform – a digitized demand-response system – makes it possible for the first time to combine the small electrical loads of buildings or industrial sites, so that building operators can sell energy back to the reserve market, with the ultimate goal to increase the flexibility of the electricity market as a whole.

We are shaping a new market at the grid edge with this technology,” explained Cedrik Neike, Chief Executive Officer Siemens Smart Infrastructure. “Together with the State of Finland, we are pioneering a model for decentralized energy systems to benefit utilities, business and society. The complexity of balancing loads across buildings, the grid and even with eMobility infrastructure requires deep domain expertise in the demand and supply areas.

The VPP service helps balance power consumption, to decrease the need for reserve power and, consequently, cutting carbon dioxide emissions. The Finnish national grid operator, Fingrid, compensates property owners when the VPP feeds energy into the public grid. Finland’s Ministry of Economic Affairs and Employment is providing a grant of 8.4 million euros for the required technology investments.

Siemens already has two pilot customers for its VPP approach: Finnish Railways will connect the iconic Helsinki Central Station as well as two train depots in a microgrid to create a virtual power plant.

Renewable energy is challenging the entire energy system. We want to prepare for these changes now,” says Juha Antti Juutinen, Director of Real Estate at Finnish Railways.

Lappeenranta, a city of 75,000 inhabitants close to the Russian border, will kick off with nine public buildings, scaling up to connect 50 more buildings to a city microgrid.

The virtual power plant service decreases the environmental impact of the city and provides additional income,” says Markku Mäki-Hokkonen, development manager of the City of Lappeenranta.

Siemens’ VPP platform leverages the company’s successful energy optimization project at Sello shopping mall, a property of 100.000 m2 space located in the suburbs of Helsinki. Sello’s microgrid combines energy efficiency, storage, optimization of peak loads, and its own electricity production. In addition, supplying extra energy to the reserve market has led to annual income of around 650,000 euros annually for the Sello property owners.

Source: Siemens

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Rolls-Royce has signed a contract with EPC contractor TTS Martin, s.r.o. for the supply of a 28 MWe power plant for state-owned utility Martinska teplarenska, a.s. in Slovakia. The plant will be equipped with three Rolls-Royce Bergen B35:40V20AG2 natural gas engines and four hot-water boilers, replacing their entire existing coal operation. As well as electricity, the engines and boilers will supply over 28 MW of heat to most of the 60,000 population of the cities of Martin and Vrutky.

Martinska teplarenska heating plant is currently using mainly low-quality lignite for heat production – which is both low-output and non-ecological. Especially in the conditions prevalent in the Martin region – which is surrounded by mountains and unable to dispel pollution – it is crucial to look for the most effective, most ecological solutions for heat and power production.

The upgrade of the district heating plant is part of Martinska teplarenska’s strategy towards green, sustainable power supplies and the winding-down of their coal operations. They made a strategic decision to invest in gas-fuelled reciprocating engines and gas boilers as a more long-term solution than exhaust gas aftertreatment systems to reduce the emissions given off by coal-fired power plants. The B35:40 gas series meets the increasingly stringent emissions requirements, with exceptionally low emissions of NOx, CO and UHC combined.

The new Martinska teplarenska plant is planned to go into commercial operation at the beginning of 2020, and will be Rolls-Royce’s second power plant using B35:40 Bergen gas engines in Slovakia. The first will under commissioning in May 2019, generating a total of 37 MWe of heat and power for district heating company Teplaren Kosice, a. s.

Rolls-Royce medium-speed engines are designed flexibly for different operating modes, and can be used to generate base-load, peak power or operate in combined cycles. By utilizing hot water from the engines, the plant will be used for district heating in the surrounding area. Heat from the engines can also be used to produce steam in the heat recovery steam generators in order to supply industrial customers if required.

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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

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Rolls-Royce has signed a contract with C-Energy to extend their power plant installed capacity with further 23 MWe. The delivery includes two gas-fired gensets based on the new 20 cylinder Rolls-Royce medium speed V-engine, B36:45, that was launched at the Power Gen Asia in September this year. Rolls-Royce will also be supplying long term services for the new engines.

The new B36:45 engine series set a new standard in power and efficiency with exceptionally low fuel consumption and emissions of NOx, CO2, SOx and particulates. At 600 kW per cylinder it offers a 20 per cent increase in power per cylinder compared to its predecessor, the B35:40. The V20 is the largest variant available with an electrical output of 11,8 MWe.

The existing 60 MWe power plant of C-Energy was reconstructed in the beginning of 2015 with four B35:40V20 gas engines. At this time, this was the first natural gas power plant based on medium-speed gas engines in the South Bohemian Region prepared to supply heat and power to the local grid. Due to low coal prices however, electricity and heat in the region is still predominantly generated by coal-fired plants. Hence, the extension of the gas fired plant is considered as an additional step forward towards a green future for the region and country.

With the extension, the power plant will, from the end of 2019, deliver a total of 83 MWe electricity and heat for companies and homes in the nearby town of Tabor/Sezimovo Ústí roughly 100 kilometers southeast of the capital Prague.

Delivery of four Rolls-Royce engines among other investments helped to transform the old coal fired central heating plant into a modern power plant in 2015. Nowadays the plant not only supply power to the grid and heat to industrial customers and municipalities but also provide auxiliary services to the high voltage grid. The supply of brand new Rolls-Royce engines will enable the plant to increase its flexibility, to provide wider range of services and hence remain competitive on the pan European energy market.

The Rolls-Royce medium-speed engines will enable C-Energy to operate the plant efficiently, both in terms of cost and time. Both the B35:40 and the new B36:45 medium speed gas engines are flexibly designed for different operating modes. They can be used to generate base-load or peak power or can operate in combined cycle. The heat from the engines can be used to generate steam in the heat recovery steam generators, and the steam is supplied to industrial customers for their technological needs. The power plant can also be used for district heating by utilizing hot water from the engines.

The engines quick-start capability means the engines can ramp up to their rated load within five minutes, giving the plant access to the amount of power and heat needed within just a short space of time. In addition the new engines will be certified to provide primary and secondary grid regulation.

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GE’s Power Services business announced the completion of an aeroderivative gas turbine exchange at COMETA’s Talosa plant in Soria, Spain. COMETA, owned by Grupo LOSAN, is a major European producer of wood-based panels and faced the need to modernize its natural gas-fired plant to keep its industrial processes competitive globally.

At our Talosa facility, we power our industrial process and sell the extra electricity produced by the turbine. Also, the exhaust gas is used to supply heat to the wood and chipboard factory and to a heat recovery steam generator that produces steam—delivering an additional 3,000 kilowatt-hours,” said José Luis Lázaro, deputy general manager, Losán Group, COMETA. “We needed an upgrade that provided us with more flexibility to balance the intermittent nature of the power grid. GE’s engine exchange with a new turbine was the best and most cost-effective solution for greater flexibility, reliability and performance to support our many industrial processes. Furthermore, the financing and leasing options included in GE’s exchange program met our requirements without impacting our own financing capacity.”

For the project, COMETA decided on a new GE LM2500 Base SAC aeroderivative gas turbine rather than a second overhaul of its existing engine, which had already reached 100,000 running hours. GE’s solution of a new engine rather than an overhaul for a third life cycle reduces the shutdown period and offsets the cost of a replacement engine. The new engine will result in an output increase of at least 2 percent, a heat rate improvement of at least 3 percent and increased electrical efficiency by at least 1 percent. The deal includes a multiyear service agreement through the end of 2023.

This project marks our continuous commitment in supporting customers with holistic service solutions, whether it be maintenance, repair, overhaul or engine exchange,” said Martin O’Neill, general manager of Aeroderivative Gas Turbines and Gas Turbine Cross-Fleet solutions for GE’s Power Services business. “GE’s engine exchange program is vital for companies like Grupo LOSAN with aging fleets that have the need to increase efficiency and output. This program is crucial—especially in Europe where flexible power and reliability are needed to ensure continuous industrial operations and balance the intermittency of the grid.

GE’s aeroderivative engine exchange program is specifically made for customers that seek to reduce overall life cycle costs and provide a lower-cost method for maintaining unit availability. Customers can improve site availability by leasing equipment from GE when their own equipment is at a depot for repair or when their equipment is being repaired on-site.

GE can exchange existing engines with a new engine, a refurbished engine or a partial-life engine on-site, which would require only a two-to-three-day outage. As the original equipment manufacturer, GE not only has the largest engine exchange pool available, but also has a steady supply of new engines that provide the latest and greatest technology improvements. Additionally, GE can offer fully refurbished engines as a lower-cost alternative.

Source: GE

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Wärtsilä, for the duration of the 10-year agreement, will provide advisory and maintenance services that help ensure reliable power generation for the plant, which is primarily used to meet peak loads. The fast-response power plant increases flexible power generation and supports Hawaii in reaching its target of 100 percent renewable energy by 2045.

The Maintenance and Operational advisory agreement between Wärtsilä and Hawaiian Electric Co. was executed in May 2018. It responds to a variety of Hawaiian Electric Company’s needs, ranging from maintenance support, technical support, and reduced outage time while helping to control cost.

The agreement covers operational support, maintenance planning, major maintenance, quarterly site audits, ICS (Industrial Control Systems) cyber security patching services, and scheduled OEM spare parts.

The plant is operated on biodiesel with ultra-low sulfur and diesel as a secondary fuel and has the ability to use biogas or natural gas in the future. The plant will also provide “black start” capability, which improves resilience in the event of natural disasters such as hurricanes or tsunamis.

On Oahu, the installed capacity of solar PV systems is the highest per capita in the United States. Therefore, it is crucial to have fast- starting generation capability that can respond to changes in wind and solar power generation. Hawaii’s renewable portfolio standards require the utilities generation to be 30 percent renewable by 2020, 40 percent by 2030, 70 percent by 2040, and 100 percent by 2045. The Wärtsilä facility will help the utility achieve those benchmarks.

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MAN Energy Solutions has won the order from Oman Liquefied Natural Gas LLC (Oman LNG) to equip a new power plant with nine MAN 51/60 gas engines. The power plant will be located in Qalhat, southeast of Muscat on the Gulf of Oman, and will provide 120 MW of power to the existing LNG facility of Oman LNG. It will replace an existing gas-turbine plant. In fact, this market segment has been completely dominated by gas turbines in the past, so this is a pioneering installation that will show MAN 51/60 gas engine is the ideal fit for this application.

The new power plant needs to be capable of using a variety of differing gas compositions and methane numbers with limited gas conditioning or blending. To master this, MAN Energy Solutions has developed control strategies to ensure that the engines adapt to the prevailing gas configuration in real time for optimum performance.

As fuel, the new plant uses gases derived from the liquefaction process, which can contain high inert components in the fuel and, therefore, may have much lower calorific values. Thanks to their customized design, the engines will nevertheless be able to provide the required power, even at ambient temperatures of up to 48 °C.

Compared to the existing plant, MAN engines will significantly reduce fuel consumption and GHG emissions of Oman LNG’s Power Plant , while the modular-design approach guarantees top-of-the-line overall availability.

Source: MAN Energy Solutions

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Rolls-Royce Power Systems subsidiary Bergen Engines has signed contracts for the delivery of two power stations to Bangladesh with a contract value of 133 million Euro. The consignments to Confidence Power Rangpur Limited are destined for a power station in Rangpur with an output of 112 Megawatts electrical power. It will be supplied this year. A second, similar power station is set for delivery in 2018. This 150 MW power plant intended for Midland East Power Ltd will be located in Ashuganj. Within the contracts are also spare parts deliveries over 15 years.

These contracts are part of the Bangladesh government’s ambitious plan to more than double national power generation capacity to 38,000 MW to meet a forecast demand of some 33,000 MW by 2030. Meeting this goal will require a substantial increase of a good 9,000 MW over the next four years alone – and this is where the medium-speed engines come in. A power plant based on internal combustion engines is easily built within just one year, whereas other alternatives can take as long as seven years to realize.

 

We are delighted to have been chosen to help develop the power sector in Bangladesh,” comments Jeff Elliott, Managing Director at Bergen Engines. Bergen Engines delivered its first Rolls-Royce genset engine to Bangladesh way back in 2001, and has since built power stations covering over five percent of the country’s overall power supply.

Source: Rolls-Royce

MAN Diesel & Turbo successfully commissioned eight type 18V48/60 engines in the new “Planta MAN 140” power plant in Los Brasiles, Nicaragua and handed them over to the operator, Alba Generación. The company was also responsible for engineering and delivery of the engines and equipment, steel structure, piping and electrics. With a generation capacity of 140 MW, Planta MAN 140 is the largest and most cutting-edge thermal power plant in Nicaragua and has a share of around 12% of the total capacity nationwide.

In close proximity to the capital city, Managua, Planta MAN 140 replaces older and less efficient diesel power plants and balances fluctuations in the generation of electricity from renewable sources. The engines run on heavy fuel oil (HFO).

 

Nicaragua has ambitious plans with regard to power generation. It is aiming to produce 90% of electrical power from renewable sources by 2020. Renewable sources, primarily wind power and hydropower, already account for 57% of the country’s electricity demand. Wind levels, however, are subject to considerable fluctuations.

Engine power plants are ideal as a back-up for renewable energies,” explains Thorsten Dradrach, Head of Sales for Power Plants on the American continent at MAN Diesel & Turbo. “Not only can the engines be started up and reach full load in 3-5 minutes, they also operate efficiently at partial load. In the event of low wind levels or even no wind at all, the MAN48/60 engines generate energy reliably and in a highly flexible manner in order to compensate for fluctuations in the power network.”

Transporting the engines 156 kilometres from the port of Corinto to Los Brasiles was a highly logistical challenge. At temperatures of up to 40 °C and under increased volcanic activity, each of the eight 320-ton engines had to cross more than 60 bridges, many of which first had to be bridged with fly-over ramps.

Alba Generacion is a subsidiary of Alba Nicaragua, which is owned by the Bolivarian Alliance for the Peoples of Our America. Alba is an economic and political alliance of nine countries in Latin America and the Caribbean, including Nicaragua. Alba’s aim is to achieve greater independence from the USA and Europe by means of economic cooperation between the countries in Latin America and the Caribbean. The energy sector has a particularly important part to play in this mission.

Source: MAN Diesel & Turbo

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Siemens will supply the key components for the Attarat steam power plant in Jordan. The customer China Energy Engineering Group Guangdong Power Engineering Co. Ltd. will build the facility as general contractor for the operator of the plant, the Attarat Power Company. Siemens’ scope of supply comprises two SST5-5000 steam turbines, two air-cooled SGen5-1200A generators, and the turbine control system. The condenser is air cooled to address the lack of water at the site. This can be seen as a global trend for dry areas where water is mainly used for households, farming and ecosystem. The power plant will start operation in mid-2020 and will feed up to 470 MW to Jordan’s power grid.

The Attarat facility will supply enough electricity to cover up to 15 percent of the country’s annual power demand. Jordan is one of the most water-scarce countries in the world. The air cooled condensers will save up to 90 percent of the water needed for the plant’s operation compared with the use of a wet cooling system. Siemens will supply low-pressure turbines which are able to withstand the high back pressure caused by the condensers. The SST5-5000 is the most compact steam turbine generator consisting of one combined high- / intermediate pressure and one low pressure module ever built for a steam power plant. This will provide a small footprint and highest possible performance.

 

Jordan is considered one of the driest countries in the world, and 14 percent of the country’s power capacity is used for water treatment and distribution. The power plant will be built in the desert at Attarat Um Ghudran, 100 kilometers southeast of the Jordanian capital Amman and away from the country’s natural water supplies. The efficient use of scarce resources, especially water, is a critical challenge to provide a reliable power supply for the local population and economy.

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