DFIC has been working on a study to reorganize the energy supply of the Mathematical-Scientific Campus of the University of Cologne. The objective was to ensure a sustainable, climate-friendly, economical and at the same time space-saving energy supply on the basis of trigeneration.
Various energy supply options based on renewable energies have been developed and compared: the options have been examined and evaluated with regard to their impact on the above mentioned targets.
In this context, DFIC performed the following services:
- Inventory of energy supply: currently over 135,000 m² GFA
- Specific analysis of a large number of different types of use and of the expansion of a further 30,000 m² GFA
- Detailed analysis and forecast of energy demand information
- Development of an energy supply concept including:
- Technical planning and plant design
- Economic planning
- Other planning
- Alternative concepts for implementation (BOO, IPP, ESCo and outsourcing models).
The DFIC approach for the study on trigeneration is characterised by the following elements:
- Optimisation regarding centralised - decentralised heating and cooling
- Use of existing district heating networks and refrigeration machines as back-up and for peak load coverage
- Storage of hot water for peak smoothing, in particular for refrigeration
- Optional addition of solar thermal energy, in particular to cover cold peaks in summer
- Two-stage procedure:
- Larger number of possible scenarios
- Workshop to identify 3 preferred supply variants which have to be examined in detail
- Optimisation / sizing of cogeneration engines.