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Largest US users of on-site renewables – EPA

The US Environmental Protection Agency (EPA) has released its list of the top 50 partner organizations using the most on-site renewable electricity, under its Green Power Partnership.

The Green Power Partnership works with more than 1300 partner organizations to voluntarily purchase green power to reduce the environmental impacts of conventional electricity use. Overall, partners are using more than 19 TWh of green power annually.

In the specialized, on-site renewables category, the top 50 list is headed by the Kimberley-Clark Corporation, which uses on-site biomass plants to supply 180 GWh per year, or around 7%, of its total electricity use. The City of San Diego uses on-site biogas, small-scale hydro and solar technologies to supply 70 GWh per year, more than a quarter of its total electricity use. Third place is taken by the US Air Force, which uses biogas, solar and on-site wind to supply 62 GWh per year, although this represents just 1% of its total electricity use.

Among the entities with the largest proportion of total electricity use sourced from on-site renewables are the Encina Wastewater Authority and the City of Tulare Wastewater Treatment Plant, which use biogas to generate 63% and 38% of their total electricity use; hair product manufacturer Zotos International, which uses on-site wind to generate 60% of its total use; and the City of Ann Arbor, which generates nearly a third of its total electricity use from biogas, small-scale hydro and solar technologies.


CHP achieves carbon savings at UK dairy facility

UK dairy products company Adams foods is achieving impressive carbon savings at its new factory in Staffordshire, thanks to CHP technology supplied by sustainable power group ENER-G, which has installed a 150 kW CHP unit as part of an environmental management programme at the factory.

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The ENER-G CHP system generates 150 kW of electricity and provides 225 kW of heat to pre-heat water for washing and cleaning. The CHP unit was acquired using ENER-G’s capital purchase scheme and features an ENER-G Premier maintenance contract that includes all services and call outs.

Adams Foods is the UK’s leading pre-packed cheese business, with a 30% share of the UK retail market. The state-of-the-art factory and office complex, in Leek, was designed to be the most efficient and environmentally friendly packing facility in Europe. The new facility employs 550 people and operates 24 hours a day.


New 800 MW cogen plant for Singapore

Sembcorp has selected Alstom to build a 800 MW gas-fired combined cycle cogeneration plant on Singapore’s Jurong Island. The plant’s construction will be carried out in two phases of 400 MW each.

The engineering, procurement and con-struction contract for both phases is worth about €500 million and includes, for each phase, the supply of the entire unit and all associated equipment, including a GT26 gas turbine, steam turbine, turbo generator, heat recovery steam generator and ALSPA Series 6 integrated control system.

With this new plant, Sembcorp will roughly double its generation capacity in Singapore to more than 1600 MW. As well as providing electricity, the new power plant will also supply steam to the petrochemical and chemical manufacturing industries that are located in the area of Jurong Island, an artificial island that covers 32 km2.


Fuel cell CHP unit for central London redevelopment project

The Quadrant 3 redevelopment project on Regent Street in central London, UK, is to host a 300 kW DFC300 fuel cell-based CHP unit from the US-based FuelCell Energy. The fuel cell is expected to help meet local clean air emission requirements and carbon reduction targets.

The Quadrant 3 project is a mixed use retail/office/residential redevelopment project by Britain’s Crown Estate. The fuel cell project designer and installer, UK-based Logan Energy, estimates the overall efficiency of the installation at 82%. The plant is expected to operate by late 2011.

The DFC300 will be inside the building, as its quiet operation and virtual lack of pollutants is suited to urban applications, says FuelCell Energy. The power generation process uses an electrochemical reaction rather than combustion to very efficiently convert fuel into clean electricity. Due to the lack of combustion, the fuel cell emits virtually no pollutants, such as NOx, SOx or particulate matter.


Siemens to supply power/desal plant in Saudi Arabia

Siemens has won a $1 billion order from Saudi Arabia to supply components for a combined cycle plant, which will power an aluminium smelting plant and a seawater desalination facility.

The company is to supply 12 gas turbines, 10 heat recovery steam generators, 5 steam turbines, and the associated auxiliary and ancillary systems for the 2400 MW Ras Az Zawr power plant. The purchaser is a consortium of Al Arrab Contracting Company, Saudi Arabia, and China’s SepcoIII Electric Power Construction Corporation. Commercial operation is scheduled from early 2014.

The plant will be about 75 km northwest of Jubail and will supply about 1 million m3 per day of drinking water to Riyadh.


Microturbines at shale gas ‘plays’ in the United States

Capstone Turbine Corporation has received an order for another 24 C65 microturbines for installation by a leading independent oil and natural gas company at its shale gas exploration sites in the US. The order follows an 18-unit C65 order in August 2010, all units of which have been commissioned by Capstone distributor Pumps & Service.

Pumps & Service has received about 12.5 MW of new orders over the past nine months from three major firms exploring large shale reserves – or plays – in the country. The US shale gas market is set to grow substantially, particularly as the US Environmental Protection Agency’s Clean Air Act imposes strict emissions controls at natural gas sites, says Capstone.

The latest order is to power central processing facilities and metering stations at remote well sites in the Eagle Ford shale play in South Texas.


Singapore’s grand hyatt hotel uses syngas to fuel trigen plant

Singapore’s Grand Hyatt has opened a trigeneration facility in which ‘waste’ synthetic gas (syngas) is turned into heat, power and cooling energy.

GE has provided a Jenbacher JMS 320 gas engine, designed for syngas, which has a high content of hydrogen but a low methane content. The syngas, unique to this region, is considered as a waste gas from the nearby crude oil refinery.

The JMS 320 has an output of 587 kW, with NOx emissions of below 500 mg/Nm3. It was sold through Navigat Energy, an authorized distributor in Indonesia for GE Jenbacher.


Siemens supplies 16 gas turbines for industrial CHP plants in Thailand

Siemens Energy has won contracts from Thailand for 16 SGT-800 industrial gas turbines for combined cycle cogeneration plants (CCCP) under Thailandà‚´s Small Power Producer (SPP) programme.

For the end customer Gulf JP, an independent power producer headquartered in Bangkok, Siemens will supply, via EPC contractor Toyo Engineering Corporation of Japan, 14 gas turbines for seven projects. Japan’s Toshiba Plant Systems & Services Corporation has purchased another two SGT-800 machines, for a CCPP as EPC for the end user Amata B Grimm Power 3.


Three US campuses win EPA’s ‘energy star’ CHP awards

Three educational campuses in the United States have been recognized by the US Environmental Protection Agency (EPA) with Energy Star Combined Heat and Power (CHP) awards. All three simultaneously produce electricity and useful thermal energy from a single energy source, such as natural gas, biomass, coal, or waste heat.

The University of Mass-achusetts Amherst, Cornell University and National Institutes of Health CHP systems achieve operating efficiencies ranging from 76% to 79%. By designing more efficient facilities, the three award winners have prevented carbon emissions equivalent to the annual emissions from more than 29,000 passenger vehicles, says the EPA.

Established in 2001, the EPA CHP Partnership is a voluntary programme that encourages the use of combined heat and power to reduce the environmental impact of power generation. The partnership works closely with energy users, the CHP industry, state and local governments, and other energy stakeholders to facilitate the development of new projects and to promote energy, environmental and economic benefits.

CHP systems can qualify for US EPA’s Energy Star CHP awards if they demonstrate considerable emissions savings – along with a reduction in fuel consumption of at least 5% – when compared with comparable, state-of-the-art separate heat and power generation.


US tool manufacturer switches to on-site CHP to curb costs

US-based 2G CENERGY has received an order for a CHP plant to supply electricity and thermal energy to Simonds International in Fitchburg, Massachusetts, said to be the oldest cutting tool manufacturer in North America.

The CHP plant is expected to produce enough energy to power, heat and cool the Fitchburg plant. The firm is making the move towards on-site energy to help combat high energy costs. The $5.5 million cogeneration system should also save 150 jobs, it says.

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CHP is set to cut bills at the Simonds plant in Massachusetts

The modular, natural gas-based cogeneration system is rated at 1.8 MW and has has 600 kWh ‘avus’ series CHP modules with MWM engines fully integrated into the 2G cogeneration package. The CHP system comes fully factory-tested and requires no civil construction or site engineering. The fully-integrated exhaust system guarantees ultra low NOx and CO emissions well below Massachusetts and local regulations, says 2G.


Biomass to fuel CHP turbine at US pulp and paper mill

A new cogeneration plant at the Nippon Paper Industries USA pulp and paper mill in Port Angeles, Washington, US, is to feature a steam turbine generator supplied by GE Oil & Gas and fuelled by residue from local timber operations. The plant will generate 20 MW of power, becoming the first biomass project in the Port Angeles region of Washington State.

The steam turbine will be manufactured at the Thermodyn unit of GE Oil & Gas in Le Creusot, France and will be shipped to the project site in February 2012, with commercial operation scheduled for later that year. The plant will produce power and steam for use in the pulp and paper mill, with excess electricity sold to local power companies.


Mexican mining giant turns to on-site power for 40% saving

GrupoMexico, Mexico’s largest mining group, has signed a $300 million agreement with the German conglomerate Siemens for the construction of an on-site gas-fired power plant that it hopes will save 40% of its energy costs.

The plant, which will have a capacity of 250 MW, will meet the energy requirements of its copper processing facility in La Caridad, Sonosa, said Xavier Garcia de Quevedo, president of Mexico Mining, a subsidiary of GrupoMexico. It will include a gas turbine, steam turbine, electric generators, heat recovery steam generator and control system.

The plant is scheduled for commercial operation in summer 2013. According to de Quevedo, GrupoMexico chose to invest in a new on-site plant because it anticipates the price of natural gas will remain competitive in the long-term.


Centrax wins four orders from France

UK-based Centrax has won significant new orders for gas turbine powered generating sets from customers in France. Three of the four Centrax CX501-KB7 packages ordered are direct replacements for earlier KB7 units, while the fourth is for a new customer.

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Two of the new Centrax packages are for the operator Semhach and will equip district heating schemes in the southern Paris suburbs of Chevilly-Larue and l’Hayles-Roses, where they replace older Centrax units. The new packages each generate 5.5 MW of electricity plus heat to supply the local community and businesses with power and hot water. They supplement a geothermal facility that draws water at around 74à‚°C from 1800 metres below ground, from which heat is recovered through heat exchangers.

The third replacement Centrax package will equip a district heating scheme in the northern Paris suburb of Gennevilliers operated by Cofely. This site is next to a school, requiring a strict low-noise specification. The new Centrax customer is the Vaulx-en-Velin power station in the north-east suburbs of Lyon, also operated by Cofely.


WINGAS to support micro-CHP in Germany

Gas supply company Wingas has launched an incentive programme worth millions of euros to promote the use of decentralized CHP technology in the German consumer market over the coming years.

The programme offers either a one-time investment grant per micro-CHP system of up to €2500, or an annual operating grant for newly installed systems until the year 2020. In the case of the latter, Wingas is doubling the special natural gas or eco-tax refund by up to 0.55 euro cents per kWh, depending on the system capacity. The incentive scheme covers systems with a capacity of up to 20 kW.

Small natural gas-powered combined heat and power systems that generate heat and electricity at the same time can attain efficiency levels of more than 90% percent and represent one of the most efficient methods of energy generation – partly because they are installed on the user’s premises and therefore avoid any transmission losses.

In recent years Wingas, established in 1993 by Wintershall Holding AG and Gazprom, has supported field tests and trials with micro-CHP systems on a wide scale, together with various utility companies across Germany and helped promote the development of this technology.

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