Dr. Alex Hobé

In this project we will develop a methodology to increase the synergies between top-down and bottom-up energy optimization tools with the aim of assessing the potentials of large-scale seasonal thermal energy storage (TES) in Switzerland.
The top-down approach carried out with Energy Scope will be used to assess the transition path and the…

Heat storages can assist in the rational dimensioning and operation of thermal networks. They can smooth out peak loads and eliminate the need for fossil-fuelled peak load boilers. Heat surpluses can be stored temporarily. Decentralised storage systems can relieve the load on individual sections of the grid or enable grid densification and…

This project aims to develop an advanced energy management system based on model predictive control (MPC) to optimize the operation of so-called “SolIceTES” systems for space cooling applications. A SolIceTES system consists of an ice-on-coil ice storage coupled with photovoltaics and a compression chiller. Such a system allows for shifting or…

Within this project the potential of large thermal energy storages to facilitate the decarbonisation and simultaneous expansion of thermal networks are analysed. Different techniques of short-, medium- and long-term heat storage are considered. The focus is on the replacement of fossil peak load, the increased integration of waste heat, the shift…

Within the project Ice-Grid possible application of ice-storage tanks in low temperature thermal networks will be analyzed. In combination with other storages, ice-storage tanks can help to shift the availability of heat or cold. As latent heat can be used at 0 °C within an ice storage, this type of storage is of particular interest regarding the…

Thermocline is a cost efficient thermal storage system able to reduce capital costs of CSP up to 40 %. The objective of this project is to develop new thermocline concepts that can be applicable to different CSP plants. Detailed simulation of two thermocline concepts will be validated with the experimental data generated in this project. Based on…

The SolResHC project addresses research questions related to IEA PVPS Task 16 regarding "Solar Resource for High Penetration and Large Scale Applications".
Specifically, impacts of different weather scenarios on solar heating and cooling are assessed. Simulations for various future scenarios are carried out to determine the impact of weather data…