Networks In City : Interopérabilité des réseaux énergétiques dans les zones urbaines : optimisation de l’intégration de réseaux existants et de la pénétration de solutions de mobilité à bas carbone.

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Engineer : Marten Fesefeldt, MSc. Sustainable Energy Engineering and Operations Research, RWTH Aachen (Germany)

Coordinator : Prof. Massimiliano Capezzali, HEIG-VD, Prof. Matthieu de Lapparent, HEIG-VD


Overall objective

The overall objective of the proposed project is to develop a flexible optimization framework for a viable co-existence of and interoperability among multiple energy supply networks in an urban zone in terms of: energy efficiency policies, financial sustainability, energy supply robustness and resilience, operational management of the supply infrastructure, availability of energy vectors, future energy demand evolutions, such as low-carbon mobility. The method shall be developed in a broad and general vision of urban energy supply; in turn, the optimized scenarios that will result from the application of the optimization framework will be tested and focused on the emblematic test-case of Canton Geneva’s GeniLac endeavour, which foresees the implementation of a large anergy network in the northern part of the territory. The aim of the proposed scenarios will be to suggest practical integration solutions in which both the natural gas as well as the power distribution existing grids can complement the new supply network and, indeed, facilitate its management, all the while ensuring overall energy efficiency policy goals are attained. The scenarios will be thereafter validated in the co-simulation framework developed within the European IntegrCiTy project, coordinated by the present proposal PI.



Specific objectives

Three specific objectives will be pursued in the proposed project:

  1. Develop a flexible, yet numerically tractable, optimization framework for the integration and interoperability of energy networks based on:
    1. covering the spatialized energy demand in terms of energy services (heating, cooling, power) for residential buildings, industrial and service-oriented dwellings, administration entities, as well as for mobility purposes (filling stations);
    2. complementarity of energy supply in terms of energy load complex temporal profiles: seasonal, weekly, daily and intraday;
    3. new or alternative usages for energy vectors distributed by the existing grids: peak demand covering, backup services, additional power generation to supply future massive deployment of electic heat pumps supplied by anergy grid, supply to filling stations for penetration of low-carbon mobility;
    4. change in networks’ infrastructures, such as integration of storage capabilities of different dimensions and/or integration of renewable energy production capacities (e.g. biogas for the natural gas network, PV production for power distribution grid);
    5. energy conversion technologies localization with respect to energy demand profiles, including multi-energy technologies such as cogeneration units, capable of generating both power and heat (to be used locally or re-injected in the respective grids);
    6. cost optimisation for both CAPEX and OPEX of the three co-existing networks.
  2. Focused application of the developed optimization framework to the specific integration of the foreseen anergy network GeniLac in the Canton of Geneva. Indeed, the implementation of this new grid used for both heating and cooling in the northern part of the Canton in particular by way of a large number of electric heat pumps, will be considered as a new constraint on the existing natural gas and electricity distribution networks. Different scenarios of integration will be proposed and successively optimized in terms of design and integration.
  3. Validation of the developed optimized scenarios by way of the IntegrCiTy co-simulation prototype platform, in terms of networks integration, design and dimensioning. Detailed performance indicators will be produced and will allow a quantitative comparison of the proposed scenarios.

Projet_NIC


Bibliography

1.   “A mixed integer approach for the transient case of gas network optimization”

Suzanne Moritz

PhD thesis, Universität Darmstadt, 2007

2.    “Optimal Integration of Heat Pumps coupled with Renewable Energies in LV Distribution networks”

Mohamed Allani

EPFL, 2017 (Master thesis)

3.    “MILP Optimization for the Design and Operation of a District Heating Network Energy System Based on Measured Data from a Holiday Village in Blatten-Belalp (Switzerland)”

Marten Fesefeldt

RWTH Aachen & CREM, 2016 (Master thesis)