Technology & Innovation

Power plant operators of flexible capacity can cash in on differentials between real-time electricity prices and day-ahead prices, triggered by the rising penetration of intermittent renewable energy sources, says Thomas Graves, senior development manager at Burns & McDonnell Engineering.

Improved combustion technology at Alstom's GT 26 gas turbine can cope with an expanding range of fuel compositions while maintaining emissions and reliability, says Alexander Bill, Service Manager at Alstom's Power Division.

Doors are opening to POWER-GEN International at the Orange County Convention Centre in Orlando, Florida, today. More than 20,000 attendees are expected to visit the exhibition and attend conference sessions.

The U.S. Department of Energy's Advanced Research Projects Agency (ARPA-E) will grant Pratt & Whitney Rocketdyne funding worth $5 million for three cost-sharing projects set to improve efficiency and reduce costs of gas turbines in commercial-scale power plants.

The resemblance between Montana, a state in north-western United States and European countries like Spain, Denmark or Germany is striking. 
"What we are seeing in Montana and also here in Europe is that our FT8 SWIFTPAC aeroderivative gas turbines are being used to maintain adequate power flows in the grid to counterbalance fluctuating wind energy," says Swift Tarbell, Pratt & Whitney Power Systems Area Director for Europe.

Two of GE's Jenbacher gas engines have been installed to power the first LNG-fuelled drilling rigs in the Marcellus Shale region of Pennsylvania. Seneca Ressources Corp. converted the power plants of two existing diesel-powered rigs to use cleaner-burning LNG in GE's 1-megawatt Jenbacher J320 turbocharged natural gas engines.

The GT26 and GT24 gas turbines offer greater flexibility to suit today's dynamic power markets like the UK. Improved fuel flexibility, flexible operation modes, and unique low load operation capability are achieved through sequential combustion, says Alexander Bill, service manager at Alstom's Power Division.

Deployment of carbon capture storage (CCS) technology will allow for more coal and gas to be used than without CCS, Sean McCoy, analyst at the International Energy Agency (IEA) told Gas to Power Journal.

"More than two thirds of today's fossil fuel reserves would have to remain un-burnt and in the ground in the absence of CCS," he said referring to the IEA's World Energy Outlook 2012.

Norwegian oil and gas major Statoil has selected Siemens' PostCap process for phase-3 in the technology qualification program for the carbon capture and storage (CCS) plant at the combined-heat and power plant at the refinery in Mongstad. The final phase of the qualification process will come to an end in April 2013.

With abundant availability of natural gas from conventional and shale resources in the US, there is no economic incentive to develop gas hydrate resources, as a further source of gas supply for power plants and industrial use, says the US Department of Energy (EIA).

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.

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News in Brief

China seen overtake Japan as worlds’ largest LNG buyer by 2025

July 15 – The International Energy Agency (IEA) expects China to overtake Japan as the world’s biggest LNG buyer with imports of 128 Bcm a year by 2025, equivalent to around 174 million tonnes. However, IEA analysts cautioned this scenario is “highly dependent on China’s future policy direction” and whether that includes an ongoing push for coal-to-gas switching for industry, residential heating and power generation.

IEA stages Clean Energy Transitions Summit

July 14 – Ministers from dozens of countries, accounting for over 80% of the world economy, have participated in the first Clean Energy Transitions Summit organised by the International Energy Agency (IEA). Dr Fatih Birol, the IEA’s Executive Director, said there “clearly is momentum” behind a sustainable recovery from the economic impacts of the Covid-19 pandemic. Participants agreed to reconvene in mid-2021.

Siemens Energy to exit coal

Jul 13 – Newly formed technology company Siemens Energy wants to phase-out any operations and technology to related to coal-fired power generation, CEO Joe Kaeser said, without giving a specific timeline. Siemens had been harshly criticised earlier this year for participating in the Adani coal mine project in Australia.

Statkraft, GE enhance GB grid stability

July 10 – Statkraft and GE Power Conversion are working together to stabilise Britain’s power grid. To that end, GE will manufacture and install two Rotating Stabiliser synchronous machines at Statkraft’s site in Keith, Moray. Statkraft was awarded four stability contracts (two at Keith and two at Lister Drive) by National Grid ESO (NGESO) earlier this year.

Siemens Energy spin-off approved

July 9 – A large majority of Siemens shareholders have voted to approve the spin-off of the company’s energy business. The spin-off was approved by 99.36 percent of capital stock represented at today’s extraordinary shareholders’ meeting.

Central Hudson links solar farms to VPP

July 9 – Central Hudson Gas & Electric Corp has established its distributed generation program within the broader context of New York State’s energy plan. Together with Sensus and their Remote Telemetry Module (RTM-III), the Central Hudson will monitor decentralized solar PV backed up by flexible gas gensets.

Siemens and GREEN Solar turn German town CO2-free

July 8 – GREEN Solar and Siemens Energy are jointly developing a concept for making Herzogenrath CO2-free. The plan is to provide an energy-efficient and economical combination of solar power plants, wind turbines, batteries, CHP and combined cycle power plants, as well as heat and hydrogen storage. The hybrid system will be built on the grounds of Nivelsteiner Sandwerke and will be large enough to cover the city’s entire energy demand with zero CO2 emissions by 2030.

Denmark paves the way for Nord Stream 2

July 7– Denmark on late Monday gave the Nord Stream 2 consortium permission to utilize pipe-laying vessels with anchors in Danish waters, paving the way for the Gazprom-led consortium to complete the interconnector. Construction of the 1,230-kilometre pipeline is nearly complete, except for a final stretch of about 120-kilometers in Danish waters. The project was halted in December when the Swiss-Dutch pipe-laying company Allseas suspended works over threats of U.S. sanctions.

EPRI tests early warning system

July 6– The Electric Power Research Institute (EPRI) is conducting trial tests with multiple utilities across the United States of an early warning system. It can detect an off-gassing event as a precursor to thermal runaway up to 30 minutes prior to a cascading failure. This gives plant operators time to mitigate the problem or shut down the system.

KKR buys stake in First Gen

July 3 – Valorous Asia Holdings, owned by KKR investment funds, has bought a 11.9% stake in First Gen through a voluntary tender offer. First Gen, one of the Philippines’ largest independent power producers with 3,492 MW installed capacity, is owned by First Philippine Holdings which is controlled by the Lopez family. KKR’s acquisition of the First Gen stake is worth nearly $192.3 million.

Gazprom’s ‘BBB’ rating affirmed

July 2 – S&P Global Ratings, Moody's Investors Service and Fitch Ratings have affirmed Gazprom's long-term credit ratings as part of their annual reviews. The ‘BBB’ ratings for Gazprom from S&P and Fitch are in line with the sovereign credit rating of the Russian Federation, while Moody's ‘Baa2’ rating is a notch higher.

MHIEC to refurbish WtE plant in Kushiro

July 1 – Mitsubishi Heavy Industries Environmental & Chemical Engineering Co (MHIEC) has received an order from the Kushiro Wide-Area Federation to repair and improve the core equipment at the local Waste-to-Energy plant in Takayama. The WtE plant has a capacity of 240 tonnes per day (tpd). Renovation will increase the energy efficiency of the fluidized bed type gasification and ash melting furnace facility, reducing emissions by around 15% annually. Works are due completed in September 2023.

Nigeria: Only two of six power projects on target

June 30 – Nigeria’s Bureau of Public Enterprises has disclosed that only two out of six privatized power plants were delivered on target. Only Transcorp Power Ltd and Geregu Power Ltd out of the six privatised electricity generation companies (GENCOs) were said to have met their performance targets since taking over.

German investors prefer solar over wind

June 29 – Energy infrastructure investors are keen to build solar power projects in Germany, but shun wind parks. In the latest solar power auction, investors offered to build almost 450 MW of capacity – more than four times the 96 MW of volume on offer– with the average successful bid at 5.27 cents per kilowatt-hour (ct/kWh). The wind auction, in contrast, was undersubscribed: The German network agency  (BNetzA) tendered around 826 MW, but successful bids only totalled 464 MW, at an average price of 6.14 ct/KWh.

MAN ventures into synthetic fuels

June 26 – MAN Energy Solutions has entered the hydrogen economy with the recent pro rata acquisition of H-TEC SYSTEMS, an electrolysis tech firm. The German OEM also committed itself to upgrading its gas turbines to run on 100% hydrogen by 2030.

Varegro starts using Cummins gas genset

June 25 – Belgian-based horticultural company Varegro, has started to use a Cummins HSK78G gas generator to power its greenhouses in Oostrozebeke, West Flanders. Varegro said it selected the Cummins HSK78G genset to produce combined heat and power (CHP) on its premises at a competitive cost for use in energy-intensive greenhouse facilities.

GE names Deloitte as independent auditor

June 24 – GE’s audit committee has selected Deloitte as the company’s independent auditor for the 2021 fiscal year, replacing KPMG. The selection of Deloitte concludes GE’s latest audit tender process.

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