EURO 2024 Copenhagen
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4259. Coordinated Optimization of Water-Energy System Operation

Invited abstract in session WC-22: Environment and climate change, stream Energy Management.

Wednesday, 12:30-14:00
Room: 81 (building: 116)

Authors (first author is the speaker)

1. Patrick Martin
IWS LS3 (SC SimTech), University of Stuttgart
2. Jannik Haas
Civil and Natural Resources Engineering, University of Canterbury
3. Wolfgang Nowak
IWS LS3 (SC SimTech), University of Stuttgart

Abstract

Water supply systems are critical infrastructure and will be forced to adapt to threats posed by climate change. In Literature optimization of these systems is often done for either steady state, or single source one year operation. Most studies focus on the water side of the operation while incorporating mostly limited energy aspects. Therefore, fully joint planning of water-energy systems is still incipient, as is operation under a fully renewable regime.
In this work, we use multi-objective optimization methods to model water-energy systems with a high temporary resolution. We focus on the operation of existing water supply systems and expansion planning to optimally incorporate renewable energies by striking the balance of less efficient operation against cheaper and cleaner energy sources and storage. This is done for different operation regimes, including a wide range of prediction horizons, from greedy short-term decision making comparable to current operation up to global (in time) optimization as a reference bound.
We validate the model of the water supply system using data provided by our German project partner, Landeswasserversorgung.
In conclusion, we show how the operation of existing water supply networks should change and how to adapt the network to integrate renewables in a combined water-energy system in preparation for our future work on long-term predictions using simulations of future climate scenarios.

Keywords

Status: accepted

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