Energy supply of an existing neighbourhood
Hydrogen
Concept development for an energy supply of an existing neighbourhood for energy refurbishment and decarbonisation with hydrogen as an energy storage medium
Within the framework of a workshop at the customer's premises, possible energy sources were identified with the help of a potential analysis. By recording inventory data from the heat meters, we were able to simulate a load profile for the heating network.
We fed the determined load profile into the simulation software, with the help of which we simulated various energy supply concepts. Important project goals were energy self-sufficiency, self-consumption quota and grid supply.
By presenting various concepts and technical designs, we were finally able to find the final system configuration.
Photovoltaik
- Primary energy generation via PV modules
- Energy consumption coverage
- Use of excess electricity for hydrogen production
- Enabling energy self-sufficient supply systems
Long-term hydrogen storage
- Seasonal H2 storage
- High-pressure hydrogen storage
- Cylinder bundle storage
- High pressure tank
- 30 to 700 bar
Energymanagementsystem
- Intelligent control of the hydrogen system by means of an energy management system (EMS)
- EMS as the hub of all data
- Visualization of the energy flows
- Plant optimization
- Improvement of economic efficiency & plant availability
- Intelligente Steuerung des Wasserstoffsystems mittels Energiemanagementsystem (EMS)
- EMS als Knotenpunkt aller Daten
- Visualisierung der Energieflüsse
- Anlagenoptimierung
- Verbesserung der Wirtschaftlichkeit & Anlagenverfügbarkeit
Elektrolysis
- chemical splitting of water (H2O) into hydrogen (H2) and oxygen (O)
- 2 H2O → 2 H2 + O2
- Different processes:
- PEM electrolysis
- AEM electrolysis
- AEL electrolysis
- Chlorine-alkali electrolysis
Fuelcell
- Energy conversion: Conversion of hydrogen into electrical energy
- Fuel cells with high efficiencies of up to 70%.
- no emissions: Fuel cells only generate water and heat as byproducts
- Control range: flexible control according to consumption requirements
Battery
- Short-term power storage using battery technology
- Extremely high efficiencies
- Day-night balance
- Optimization of the self-consumption rate and energy autrakia
- Buffer storage for electrolysis and fuel cell operation
Explosion protection zone
- Establishment of an EX-protection zone
- Gas warning system
- Average fan
- automated emergency shutdown
Smart Meter
- Recording of the energy flows
- Live data acquisition
- Data processing in EMS
- Plant optimization
- Analysis of the economic efficiency & plant parameters
Heat pump
- Base load coverage with heat pump
- Supply via RES-E
- High efficiency
- Flexibly controllable in the overall plant system
Control cabinets
The heart of building automation is the I&C control cabinets.
Smart connectivity
An intelligent system for controlling all relevant components in buildings.
The challenge in this project is the different data interfaces that come together at the Miniserver via Modbus TCP. Data from different bus systems must be converted here, which will also be useful in other projects in the future.
Vanessa Shanks
Projectmanager
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