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Conventional power plants - Optimisation of conventional power plants

Grafik Monitor Konventionelle Kraftwerke

In an energy system that is increasingly characterised by competitive markets and the fluctuating supply of wind and solar energy, decisions on the best possible use of conventional power plants are becoming more and more complex. In addition to the mathematically sound deployment decisions, our optimisation system BelVis ResOpt supports you to identify other economic and ecological issues. These are e.g.

  • higher revenues, e.g. on the power exchanges and on the balancing power market
  • lower demand for conventional primary energies
  • lower operating costs
  • improved maintenance planning
  • lower pollutant emissions

while providing security of supply to consumers at the lowest possible overall cost.

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Optimal practical recommendations

Achieving these goals and finding the optimal way to operate a portfolio of conventional power plants becomes a complex task in the context in view of the multitude of boundary conditions. Use of optimisation systems such as BelVis ResOpt support the solution of these tasks. The software calculates suggestions for the optimal operation of the power plant portfolio based on a very detailed image / model of the reality.

BelVis ResOpt provides consistent optimisation proposals for all time horizons (long-term, medium-term, day-ahead, intraday/online taking into account all boundary conditions (e.g. purchase contract conditions, purchase costs, quantity restrictions of purchase contracts, current plant availability, compliance with supply load profiles, fulfilment of concluded OTC-, spot market- and standard service contracts). This results in practical suggestions that can even be executed fully automatically via our BelVis Workflow application.

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Your optimisation options

BelVis ResOpt finds the best among the many application alternatives and transforms the complexity of your generation park into clear statements and simple efficiency.

Let us convince you of the benefits of BelVis ResOpt deployment optimisation for your power plant fleet through a study on feasibility and financial savings potential.

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BelVis ResOpt: Functional and user-friendly

The model of a power plant portfolio, including all assets, contracts and restrictions is conveniently set up in BelVis ResOpt using the fully graphical user interface and standard components from the BelVis ResOpt toolbox. Alternatives can be derived from the basic model in order to calculate and compare different business models and time horizons. In addition, BelVis ResOpt provides functions and tools for precise load forecasting, recalculation and analysis, billing preparation, trade optimisation, OTC transactions and much more.


Our expert team will help you to find the right optimisation possibilities for your power plant portfolio.

Project example

Heat supply, electricity trading and balancing energy market in an old Hanseatic city

A centuries-old Hanseatic city in Germany with more than 200,000 inhabitants supplies its customers with state-of-the-art electricity and district heating from its CCGT power plant, combined heat and power plants and other heat generators. In addition, it obtains heat through supply contracts with a third-party power plant.

Reliable heat supply at the lowest possible cost is the focus of the management of the generation plants. For this purpose, the Hanseatic City relies on the BelVis ResOpt optimisation tool for the best possible use of its generation portfolio. The software also supports the trading processes and the optimal positioning of the portfolio on the control energy market (minute reserve).

Optimisation with BelVis ResOpt minimises the required primary energy quantities, pollutant emissions and costs and maximizes the yield.


Automated business processes

In BelVis ResOpt, the optimisation of power plants, heat generators and trading contracts is fully automated and workflow-controlled over all time horizons. For the long-term horizons, BelVis ResOpt optimises the energy quantities for procurement and supply contracts so that the Hanseatic City can conclude corresponding contracts on the markets. For the short-term horizons, BelVis ResOpt determines the schedules of the power plants as well as proposals for trading transactions on the balancing energy market, considering the quantity specifications from the long-term planning. BelVis ResOpt reacts to disruptive influences (e.g. weather, plant failure, changing intraday prices) immediately with adjusted suggestions for an optimal result.

The planning in detail:

  • Long-term planning for different temperature scenarios

Long-term deployment planning and optimisation extends two years into the future (starting from the following year). It is used to support the long-term trading strategy for the heat portfolio, which consists of the self-generated heat quantities (power plant: gas, electricity, emission allowances) as well as the heat procurement from a third-party power plant. In order to consider the influence of cold and warm years, BelVis ResOpt calculates additional alternatives of long-term planning with colder and warmer temperatures, respectively, and the associated heat forecasts.


  • Rest-of-year planning

The rest-of-year planning is used to comply with the quantity restrictions and other cross-year conditions. From the heat quantities already consumed or procured in the year, BelVis ResOpt first determines the annual residual quantities and forwards the corresponding results to the day-ahead planning. Furthermore, the rest-of year planning serves to support trading for the remaining year.

  • Day-ahead planning

The daily day-ahead planning for the following day and for a fixed number of days into the future provides precise suggestions for action for the optimal use of the generation portfolio in the markets and for the operation of the power plants (spot bidding matrix, power plant generation for schedule submission, gas use, power plant deployment plan, secondary bidding - and minute reserve).

  • Intraday planning

The intraday optimisation determines trading proposals for the purchase and sale of energy quantities in intraday trading in a 15-minute cycle. In doing so, it considers changed/new influencing variables immediately - such as changed plant availability, changed load forecasts for costumers (e.g. due to weather influences) or new marketing opportunities due to changed intraday market prices - and thus provides trading suggestions that are optimally adapted to the current situation. After the conclusion of trading transactions, BelVis ResOpt determines the corresponding power plant schedule.


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