DISPATCH MODELLING: QUANTIFYING LONG TERM BENEFITS VIA HIGH RESOLUTION ANALYSIS


DISPATCH-MODELLING-QUANTIFYING-LONG-TERM-BENEFITS-VIA-HIGH-RESOLUTION-ANALYSIS

From Boston to Bangalore, power systems are facing a daunting list of challenges. Security of supply, affordability of electricity, environmental considerations, electrification, and industrialization are all driving change at a pace that is, to say the least, unusual for the slow-moving power sector. Emerging, modern technologies and their requirements clash with the old way of running things. Hundreds of power plants are being mothballed because the operating environment for which they were built, no longer exists.

For many system operators dispatching, the act of continuously optimising the power system, is becoming a daily nightmare. The changes underway in power systems around the world are affecting all aspects and objectives of dispatching, and are giving rise to a set of short-term challenges with long-term costs. 

Increasing variability imposes a more cyclic operating profile on dispatchable power generation, with considerable cost implications. This issue is compounded by the shortened forecasting horizon, itself a direct result of increased variability. The increased variability and shortened forecasting horizon, in turn, lead to unit commitment issues and increased costs due to unnecessary start-ups. All these issues combined make the already demanding task of minimising costs and emissions extremely intractable.



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  Christian Hultholm

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