Experimentation & Results

Tupras is the biggest refinery in Turkey. It has 4 plants and an important R&D department. It produces its own power and utilities, Izmit is the plant that  experimented Crystal Industry.

The Izmit refinery experimentation aimed at using Crystal Industry in order to:

  • Better understand the dynamics and economics of their energy systems.
  • Design new energy-efficient management strategies.
  • Evaluate the economic and environmental impacts of new investment projects.

To answer the energy management needs of Izmit refinery, the following functionalities were developed within Crystal Industry:

  • detailed modeling of the physical and operational constraints of energy production assets and of their interactions; 
  • ability to replay historical strategies to enable rigorous comparison of optimized or personalized management strategies with the current operational rules; 
  • study-oriented user interface specifically designed to support efficiently energy consultants or experts that perform complex energy management studies; 
  • highly configurable simulation result views that enable detailed analysis and comparison of various strategies.

During the CitInES project, it has been shown that the sole optimization of the operational management of turbine assets can lead up to a 7% decrease of costs and CO2 emissions. This joint decrease is due to the direct impact of the usage of combustible fuels on CO2 emissions. Simple and practical management guidelines based on the optimal solution have been determined to help the refinery reach cost and emission reductions almost as high as for the optimized strategy.


The optimal use of electricity markets leads to an additional 7% reduction in costs and an additional 3% decrease in emissions.

In the part of the project dedicated to investment projects, three different types of asset additions (Gas turbine, wind turbines, solar panels) have been studied. Results show that both the investments in a gas turbine or a wind turbine are profitable in similar proportions. However, although the gas turbine does help reducing CO2 emissions, the wind turbine is much more effective in doing so (as one would expect). On the other hand, solar energy is not as efficient in terms of CO2 emissions and is far more expensive to implement compared to the corresponding generated revenues.