In recent years, the European Commission and EU countries have set up numerous large-scale pilot projects to contribute to the digitisation of the energy industry across Europe and beyond. The most important goals of this endeavour are reaching a common energy data space to facilitate infrastructure planning and monitoring, empowering citizens by providing them with tools for participation in energy markets, supporting research and development of digital solutions, improving cybersecurity of the energy sector, and supporting the adoption of climate-neutral solutions for the ICT sector. In this panel key projects and services will be presented that move towards a sustainable and digital energy world by exploiting data sharing. The renowned experts and market drivers will show up their approaches and innovative solutions by presenting: Insights to a R&D project about secure smart grids in Germany that is focusing on FIWARE based smart energy solutions while facing Redispatch 2.0 and business modelling challenges. References on how a local utility works together with research institutes and energy ICT companies to realise a building block called “Energiewende” - the transformation of the energy systems towards renewables. The efficient use of data in building energy systems to achieve scalable solutions. Main highlights and strategies of European projects: French Data N​etwork and Enershare. Showcases on how FIWARE building blocks enable the data sharing of energy communities: first insight to the background of energy communities and a proof-of-concept for using the FIWARE context broker as the coordinator of an energy community.

1. Vienna, Austria
12-13 June, 2023
#FIWARESummit
From Data
to Value
OPEN SOURCE
OPEN STANDARDS
OPEN COMMUNITY
Fog Computing Network for
Local Energy Markets
Junsong Du, Institute for Energy Efficient Building and Indoor Climate
RWTH Aachen

2. 2 Junsong Du | 13.06.2023
Background: Energy Communities and Local Energy Markets (LEM)
■ Challenges for future energy systems
≡ decentralized renewables, distribution grid balancing, social effects, etc.
■ Emphasis on the concept “Energy Communities“ in two EU directives [2], [3]
≡ Objectives: increase social acceptance, encourage local investment and decentralized energy generation
Energy Community
Coordinator
Private
Household
P2C P2P
Energy Communities require a new market model: Local Energy Market (LEM)
■ Different market models exist:
Information interaction platform is still a key issue of LEM [1]

3. 3 Junsong Du | 13.06.2023
Proposed Framework: Fog Computing Networks for LEM
Cloud Layer
Edge Layer
Data
Processing
Intelligence
Perception
Layer
Energy Community Coordinator
End
Customers
Energy System Operator
…
End
Customers
End
Customers
…
Lower layers do most of the data processing, while intelligence is created at the upper layers [4]

4. 4 Junsong Du | 13.06.2023
Previous Works: District Generator, a python tool [5]
Input Output
▪ Information of buildings
▪ Type & Building Year
▪ Retrofiting level (0, 1, 2)
▪ Location/ Climate Zone
▪ Installed technology types
(e.g. PV/ Heat Pump)
▪ Demand profiles (heating/
electricity)
Intermediate
▪ Building Geometry
▪ Generation/Consumption profiles
of energy devices
▪ Technical data of energy
devices
▪ Users Behavior
github.com/RWTH-
EBC/districtgenerator
▪ Visualizations via charts
■ Main Usage:
≡ Offers Knowledge of the energy demands
≡ Exploits Synergy potentials between buildings
≡ Supports Scalability for district planning

5. 5 Junsong Du | 13.06.2023
Proof-of-Concept: Simulation Environment of LEM
…
Virtual Machine 1 Virtual Machine 2 Raspberry Pi
Virtual Machine 1
Energy Community Coordinator
End Customers
Edge Information
Platform
Community Energy Management Service
openHAB [7]
Information Interaction Platform
Cloud Layer
Edge Layer
Perception
Layer

6. 6 Junsong Du | 13.06.2023
Proof-of-Concept: Simulation Environment of LEM
…
Raspberry Pi
Energy Community Coordinator
End Customers
MQTT Broker
IoTagent JSON Orion Context Broker
Community Energy Management Service
Time-Series Data Base
Gateway
(Publisher/Listener)
Building Energy
Management Service
openHAB [7]
Energy Devices
(from districtgenerator)
Cloud Layer
Edge Layer
Perception
Layer
Virtual Machine 1 Virtual Machine 2
Virtual Machine 1

7. 7 Junsong Du | 13.06.2023
Proof-of-Concept: View of Community Coordinator
■ Monitoring LEM of the energy community ■ Monitoring energy flows of buildings
Available Energy Flows [W] Permitted Energy Flows [W]
Building ID

8. 8 Junsong Du | 13.06.2023
Proof-of-Concept: View of Community Coordinator
■ Monitor local energy system
Main Grid [W] Community Grid [W]
Total Energy Flows [W]
Heat Pump [W] Other Consumption [W] Photovoltaic (PV) [W] Electrical Heater [W]
FIWARE Gateway

9. 9 Junsong Du | 13.06.2023
Summary
■ Local energy market (LEM)
≡ LEM model is essential to energy transition
≡ Information interaction platform is still a key issue of LEM
■ Fog computing network architecture
≡ Interoperable and scalable
≡ User acceptance through the protection of private data
■ Proof-of-Concept
≡ District Generator: a python tool generating synthetic data for residential districts
≡ FIWARE as coordinators: interacts with other platforms at lower layers

10. 10 Junsong Du | 13.06.2023
Everything is open source
FIWARE Library for Python
(FiLiP)
https://pypi.org/project/filip/
Frameworks, tutorials, and
tools, including Entirety
https://github.com/N5GEH
Project webpage with
additional information
https://n5geh.com
District Generator
https://github.com/RWTH-
EBC/districtgenerator

11. Vienna, 12-13 June, 2023 | #FIWARESummit www.fiware.org
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12. Vienna, Austria
12-13 June, 2023
#FIWARESummit
Thanks!

13. 13 Sebastian Blechmann & Junsong Du | 13.06.2023
References
[1]: Chen et al. “Community Integrated Energy System Trading: A Comprehensive Review”. Journal of Modern Power Systems and Clean Energy 10, Nr. 6 (November
2022): 1445–58. https://doi.org/10.35833/MPCE.2022.000044.
[2]: DIRECTIVE (EU) 2019/ 944 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL - of 5 June 2019 -
on Common Rules for the Internal Market for Electricity and Amending Directive 2012/ 27/ EU
[3]: DIRECTIVE (EU) 2018/ 2001 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL - of 11 December 2018 -
on the Promotion of the Use of Energy from Renewable Sources
[4]: Ai et al. “Edge Computing Technologies for Internet of Things: A Primer”. Digital Communications and Networks 4, Nr. 2 (1. April 2018): 77–86.
https://doi.org/10.1016/j.dcan.2017.07.001.
[5]: districtgenerator: https://github.com/RWTH-EBC/districtgenerator