Technology & Innovation

The F-class turbine fleet is now mature and of the right size to interest third party part and service providers, says Intergen manager for project development engineering, Kevin Baker. Intergen has terminated a maintenance support contract with an original equipment manufacturer (OEM) and tendered for a third party provider to service one of its power plants.

Carbon capture reduces the efficiency of the combined-cycle gas turbine power plant (CCGT) by 11%-point, a study by Sari Siitonen, Gasum Oy and Leena Pirhonen ÅF-Consult shows. The study analyses how the integration of pre-combustion carbon capture technology in the gas-fired combined heat and power (CHP) plant affects the efficiency, power-to-heat ratio, CO2 emissions and costs of the power plant.

Enel has taken action to increase the competitiveness of its fleet of combined cycle gas turbine (CCGT) power plants, as the operator needs to come to terms with reduced operating hours and increases number of plant start-ups and shut-downs to balance renewable energy supply.

Future gas turbine research and development (R&D) needs to focus on a 'big is beautiful' approach to developing smaller, flexible units that can run efficiently at part-load, OEM representatives from Alstom, GE, Mitsubishi HI, Siemens and Pratt & Whitney Power Systems agreed at a conference in Brussels today.

Singapore is building three new large combined cycle plants to cater for the city state's growing electricity demand.

"The selection of combined cycle plants based on GT26 advanced gas turbines for all three of these projects indicates the importance of high plant flexibility while maintaining high efficiency and low emissions in many of today's electricity markets," says Pascal Radue, regional vice president, Alstom Gas Business, Asia.

GE will supply eight gas turbine-generators for the expansion of Saudi Electricity Company's (SEC) Riyadh Power Plant 12 (PP12). Once operational in 2015, the combined-cycle plant will be the first application of GE's 7F-5 series gas turbine technology in Saudi Arabia, adding  nearly 2,000 megawatts of electricity to help  meet the Kingdom's future energy demand.

RWE's decision as to which gas turbine vendor to use for its newly opened Pembroke Power Station has been largely driven by Alstom's service agreement, according to Andy Smith, project development manager at RWE.
"In the UK, the market for building new combined-cycle plants is EPC-based and we were therefore exposed to the equipment choices that the different turbine manufacturers have on offer," he told Gas to Power Journal at a conference organised by the publication in London.

Rolls-Royce has launched the retrofit upgrade RB211-Gzero that can provide existing users of industrial RB211 aeroderivative gas turbine engines with a nominal power increase of 10 percent, depending on ambient temperature and engine type.

Toshiba Corp and GE have joined forces to sell a combined cycle power generation system that integrates GE's advanced 7F 7-series gas turbine and GE's 60Hz gas turbine with Toshiba's high efficiency steam turbines and generators.

GE has launched its new FlexEfficiency 60 power generation portfolio, saying the solution was "engineered to harness natural gas" while taking into account the rising market share of renewable energy.

ExxonMobil is adding a new cogeneration plant in Singapore as part of the expansion of its petrochemical complex in Jurong. Located on a man-made island in the south-west of Singapore, the new facility is part of an industrial and power generation hub.

Kawasaki Heavy Industries (KHI) has completed of the development of a new 30 MW gas turbine – the Kawasaki L30A. Start-up of the first L30A package, installed at a plant in Japan, is due this October.

Aggreko, a leading provider of temporary power generation services, has opened its first service centre in Walvis Bay, Namibia, to meet to power demand of the country's rapidly growing mining industry. Located next to the Port of Walvis Bay, the facility is also well positioned to supply backup power generation to Namibia's shipping and fishing industries.

Alstom has developed a MXL2 upgrade for GT26 gas turbines, offering power plant operators to adapt production hours of their plants to fluctuating demand and to significantly extend inspection intervals and increase availability – key features in markets with a large share of intermittent wind generation such as Spain, says Leone Tessarini, product manager at Alstom's gas turbine services.

GE Energy Management has announced the launch of Multilin™ Intelligent Line Monitoring System -  an end-to-end overhead line monitoring solution, enabling utilities for improving the reliability and efficiency of their networks.