Changes in the energy market, in particular the rapid growth in generation from renewable sources such as wind and solar, present significant new challenges for the operators of coal- and gas-fired power plants.

To maintain profitability and efficiency, conventional generation must achieve increased flexibility in terms increased start-ups, reduced generation loads and fuel variability.

As an owner operator with decades of experience, we understand the impact of renewables, and of changes in the energy market and environmental legislation. We have first-hand experience of successfully implementing flexible operation in our own coal- and gas-fired plants.

A complete solution

Our Economic Flexible Operation solution offers a comprehensive range of support services in a single package focusing on economic efficiency, maximizing income and reducing risk.

We will work with you throughout the complete process of introducing flexible operation, from identifying commercial opportunities, through modifying plant procedures and avoiding component damage, to achieving economic gains by reducing maintenance costs and extending plant life.

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Coal-fired generation - Expertise based on owner operator experience

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Gas-fired generation - Independent gas plant solutions

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References

Fuel Challenge Solution Benefit
Gas Reduce start up times and costs for 4 x 355 MW GE 9 FA units Implement OpFlex VLP allowing independent control of load and exhaust temperature within gas turbine boundaries Warm start reduced by 30 minutes, efficiency increased from 26% to 37%, start-up fuel cost reduced by 33%
Coal Large temperature differentials in unit hot / warm start resulted in increased tube failures, loss of income and increased maintenance costs Implement a furnace off-load pumped recirculation system Significantly reduced temperture differentials across furnance. Corrosion fatigue and tube failures reduced
Gas Reduce low load operation at 429 MW single shaft plant Implement of CO reduction package, install 50 additional thermocouples for early detection of instabilities and ability to approach real HRSG load limit Final settings in pre-defined load range from 210 MW to 190 MW. Resulting CO emissions at 190 MW:13mg/NM3
Coal Avoid life reduction due to increasing unit starts. Avoid start-up oil consumption. Take advantage of summer and night-time opportunities. Maintain commercial operation New minimum load point determined. Test and demonstration program carried out. Boiler and turbine capabilities established. Stable operation confirmed Pmin reduced from 180 MW design to 90 MW (10%)

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John Tomlinson

John Tomlinson

UK Business Development
Ulrich Franke

Ulrich Franke

UK Business Development
Doug Waters

Doug Waters

Energy Services Global