User Group

The GE 7EA User Group met this month in San Antonio, Texas. The event kicked off with a reliability day and a presentation on oil analysis, and some key points were made. One of the points was that the primary reasons for oil analysis failure were that the vendor takes too long doing the analysis, and user delays in sending the samples. By the time the results are in, they are meaningless as too much time has elapsed.

New generation

Black Hills Corp. utility subsidiaries Black Hills Power and Cheyenne Light, Fuel & Power recently announced that they have filed for a certificate of public convenience and necessity with the Wyoming Public Service Commission to construct and operate a new $237 million natural-gas-fired electric generation facility within Cheyenne city limits. If approved by the Wyoming Public Service Commission, construction would begin in 2012, and the facility would begin serving customers in 2014.

Wood Group

Wood Group GTS (GTS) has entered into a strategic alliance with Pratt & Whitney Power Systems (PWPS) to jointly service the GE Frame 7FA industrial gas turbine aftermarket. Under this alliance, GTS has secured an exclusive 10-year license for sale and distribution of PWPS combustion hardware, hot gas path components and high technology repair services.


Solar power generation is one of the key strategic emerging industries in China. Hanas New Energy Group (Hanas) recently commenced the construction of its integrated solar combined cycle (ISCC) trough solar power plant in Gaoshawo town, Yanchi county, Ningxia, China.  The project, launched on October 12, 2011, represents the first ISCC trough solar demonstration project in Asia.


Ocean Power Technologies, a leading wave energy technology company, has launched a new technology initiative to enhance the efficiency of the company’s PowerBuoy wave energy system, which will be first showcased in Spain.

OPT's PowerBuoy system is smart and capable of responding to different wave conditions. It extracts the natural energy in ocean waves and is based on the integration of patented technologies in hydrodynamics, electronics, and energy conversion and computer control systems.

Pratt & Whitney

APR Energy plc and Pratt & Whitney Power Systems (PWPS) have announced a strategic partnership to increase the availability of mobile turbines for temporary power solutions. This partnership has already facilitated an APR order of 100MW on a flexible delivery schedule.

Hot gas path parts

Torque Capital Group has combined its acquisitions of Triumph Precision Castings, an investment casting foundry, and Dynamic Turbine, a precision machining company, to create Triax Turbine Components. Triax is a vertically-integrated U.S. manufacturer of hot gas path parts for industrial and aero turbine engines.

The name “Triax” reflects the company’s ability to deliver turbine components in three forms: raw castings, machined castings, and finished parts.

Dresser-Rand Saudi

Dresser-Rand, a supplier of rotating equipment solutions to the worldwide oil, gas, petrochemical, and process industries, has finalized a collaborative research agreement (CRA) with King Fahd University of Petroleum and Minerals (KFUPM). The company recently participated in the 2nd Annual KFUPM Research Day to highlight activity taking place under the research agreement.

Siemens geothermal

With a rating of up to 60 MW, Siemens Energy's SST-400 GEO steam turbine for geothermal applications combines the casing and turbine-generator package (gearbox, generator and base frame) of the Siemens SST-400 steam turbine with the steam path technologies developed, tested and applied by the steam turbine service provider TurboCare. The SST-400 GEO steam turbine can be deployed in geothermal power plants with different thermal fluids.


As gas turbine technology continues to advance and fuel quality varies along with growing expectations of longer life, higher efficiency and reduced maintenance requirements, intake filter selection has become increasingly important.

Below are excerpts from the paper "Strategy for selecting optimized technologies for gas turbine air inlet filtration systems" presented by Stephen D. Hiner of GE Energy at the ASME/IGTI expo in Vancouver in 201.


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