Paradigm shift in energy planning
Empa-Forscher Matthias Sulzer und Berkeley-Lab-Forscher Michael Wetter fordern einen radikalen Wandel in der Planung von Gebäude- und Energiesystemen. Sie schlagen einen stärker automatisierten und modellbasierten Planungsprozess vor, der der Komplexität und Flexibilität zukünftiger Energiesysteme gerecht wird und die Dekarbonisierungsziele unterstützt.
Numerous countries have committed to being climate-neutral by 2050. For building and energy systems, this requires a rapid transition from fossil fuels to renewable energies and greater networking of different sectors. Buildings, mobility, industry, electricity, heat and synthetic fuels must interact and be planned in an integrated manner. Matthias Sulzer from Empa and Michael Wetter from the Lawrence Berkeley National Laboratory argue that the current planning processes do not do justice to this complexity and that a paradigm shift is therefore necessary.
Current planning process – a silo mentality
Today’s planning processes are organised by discipline, which leads to inefficient and suboptimal results. Engineers and architects work one after the other instead of collaborating across disciplines. This linear, “waterfall” approach leaves little room for iteration and optimisation in the overall system. Sulzer emphasises that this approach is no longer sufficient to meet the requirements of future, flexible energy systems.
Inspiration from the chip industry
Sulzer and Wetter propose a planning approach inspired by the chip industry. The electronics and computer scientist Alberto Sangiovanni-Vincentelli has revolutionised chip manufacturing with his “platform-based design”. This concept uses different levels of abstraction for the holistic analysis and optimisation of systems and creates universally valid, modularly combinable models. This model could also be applied to building and energy systems in order to automate and modularise planning.
Advantages of a model-based planning process
A model-based planning process would mean that models are used not only to analyse, but also to specify and build systems. These blueprints could be combined in a modular way to clearly define the design and functionality of a system. This would revolutionise planning, construction and operating processes and promote the necessary digitalisation and automation to achieve the ambitious decarbonisation targets.
Pilot project at Empa
The EU project GOES, led by Empa, is a first step towards the application of platform-based design in the energy sector. A pilot plant with 144 geothermal probes is being developed on the Empa campus in Dübendorf as the first application of this concept. The aim is to define the various abstraction levels of decision-making and to standardise the interfaces.
The implementation of an automated and modular planning process is crucial for achieving climate neutrality by 2050, and Sulzer and Wetter are convinced that this paradigm shift will significantly increase the flexibility and efficiency of energy systems. The approach offers a promising solution to meet the challenges of decarbonisation and ensure security of supply.