Coal gas down under powers grid
Australian developer of renewable energy Envirogen has begun operating a new coal mine methane (CMM) power plant featuring 12 of GE Energy’s Jenbacher generator sets. The 12 MW plant is at Oaky Creek Colliery in central Queensland, one of Australia’s largest coal mines.
The plant not only provides power to the regional grid but, in burning the mine’s methane, will offset an estimated equivalent 2.6 million tonnes of CO2 emissions between 2008 and 2012, according to Envirogen. Methane vented from mines accounts for four per cent of Australia’s greenhouse gas emissions.
Commenting on the plant, GE vice chairman and ceo of Infrastructure John Rice said, “Envirogen’s Oaky Creek – Jenbacher engine plant is an excellent example of how customers can use GE’s broad portfolio of highly advanced, cost-effective technology for efficient power generation, using alternative energy sources.”
An original order for ten JGS 320 GS-S.L Jenbacher gensets was supplemented with two additional 1 MW units brought in from another Envirogen CMM project, to help handle the greater volume and consistency of mine gas found at Oaky Creek.
Kenyan adds temporary power
The Kenyan government has invested Sh2.5 billion ($34.6 million) in a 100 MW temporary power plant in Nairobi to avert a power crisis. A drought earlier in the year has drastically reduced hydropower production and forced a switch to more thermal power generation.
The award by Kenya Electricity Generation Company (KenGen) to supply and run the emergency power plant was made to Aggreko in April. Aggreko operated a 45 MW plant at the same location in 2000 and 2001. “With 100 MW in a single location, this is the largest temporary power plant Aggreko has delivered and is the fifth major contract it has won in East Africa in the last 12 months,” said Rupert Soames, chief executive of Aggreko.
Kenya’s installed generation stands at 1085 MW, with an available output of 960 MW, compare with demand of 916 MW. KenGen’s managing director Richard Nderitu, said, “The spare 64 MW is inadequate during maintenance and emergency breakdown times.”
Separately, Dubai-based Aggreko International Power Projects has been chosen as the ‘Fast Track Power Solution Company’ at a power awards ceremony in Hong Kong. The award particularly recognized Aggreko’s contribution to the Oyu Tolgoi Mine project in Mongolia, where it provided a fast-track temporary power plant for the sinking of an exploratory shaft within six days.
Cummins VIP treatment
Cummins Power Generation has recently completed the provision of back-up power for the new Royal Air Wing of Dubai International Airport. The special Royal Family and VIP wing is part of a $2.5 billion airport expansion aimed at expanding annual passenger numbers to 70 million and accommodating the new Airbus A380 double-deck passenger aircraft.
As part of the operation, the client needed to engage a power supplier that could guarantee that in the event of a power failure, electricity would be restored to the site within ten seconds. Cummins Middle East regional distribution centre was involved in the design, supply, supervision of installation, testing and on-site training for the project. The installation included three units of 2250 kVa for standby applications, DMC 200 (digital master controls) and additional neutral earthing board and resistor.
Cummins successfully completed commissioning and testing of the gensets and controls and has now turned the units over to the client.
Centrax order is all wrapped up
Centrax Gas Turbines has won an order to supply a CX501 – KB5 generator set package to Buchmann Karton in Germany, a specialist manufacturer of paperboard packaging for consumer food and household items. Centrax is due to supply a gas fuelled CX501-KB5 package with a 6.3kV generator by the end of the year, with commissioning due in early 2007.
Buchmann chose to install the Centrax package because the Rolls-Royce KB5 engine it uses, better fits the conditions both for the site’s electrical requirements and also in conjunction with the novel use of a high efficiency system called the “Hutter Cycle”, better than any other turbine.
The Hutter Cycle optimizes heat recovery by removing all oxygen in a proportion of the turbine exhaust flow by the use of supplementary firing, leading to approximately 90 per cent efficiency.
Deutz goes compact
Deutz UK has added two new compact engine families to its range – the D2008 and D2009 water-cooled 3 and 4 cylinder engines. These are heavy duty engines that are exceptionally quite, produce low emissions and are economical. The outputs for the five additional models cover the 10 kW to 50 kW range.
Deutz engines are used in a wide variety of markets and applications, including tractors, mowers, generators and construction and agricultural equipment. Both the D2008 and D2009 ranges offer compact, space-saving engine platforms to fully minimize any potential equipment redesign costs. These new engine ranges now join well established products such as the 909 series single cylinder air-cooled models, which provide outputs from 6 kW to 11 kW and comply with EU Stage 2 and US EPA Tier 2 emissions legislation.
Sudan success for MAN B & W
MAN B & W has signed contracts with Powerica of India to supply liquid fuel operating generating sets to the Sudan. The contracts are for a total of five 16V28/32S Gensets (pictured) to be built at MAN B & W Diesel’s Frederikshavn works and delivered in April and July 2007.
The engines are destined for two captive power plants to be built in the towns of El Fasher (10 MW) and El Genena (6 MW), meeting the power needs of the two towns. MAN B & W has delivered several generating sets for power production in many locations in Sudan since the early 1970s. Among them were five 9L28/32H gensets, which were ordered for a permanent captive power station for a crude oil fuel processing facility in Neem, delivered earlier this year.