1. Annex 54 Integration of Microgeneration and related Energy Technologies in Buildings
EBC Technical day Lisbon , June 17th 2015
Peter Tzscheutschler Evgueniy Entchev (TUM, Germany) (CANMET, Canada)

2. What?
Why?
How?
Results!
Conclusions!

3. What?
Why?
How?
Results!
Conclusions!

4. What is Microgeneration?
Heat Pump
Cogeneration
PV System
Wind Turbine
Small scale systems
supplying buildings with heating, cooling and electricity
Thermal Storage
Chiller
Battery Storage

5. Micro Cogeneration Systems
Up to about 10 kW electrical, 25 kW thermal capacity
Otto Engine Stirling Engine Fuel Cells
Pict.: Panasonic
Pict.: Senertec
Pict.: Remeha
Pict.: Baxi Innotech
Pict.: Vaillant

6. What?
Why?
How?
Results!
Conclusions!

7. Why do we look at Microgeneration?
Number of small scale systems in built environment increases
Energy supply systems become more complex
Renewable energy resources have to be integrated
Push towards higher efficiency of energy supply and usage
PV on roof (> 1 million in Germany)
Heat pumps (> in Germany)
Fuel cell systems (> in Japan)

8. What?
Why?
How?
Results!
Conclusions!

9. Integrated Microgeneration Systems
Communi- cation

10. Policies and Regulations
Approach of Annex 54
Technical
performance
Economics
Environmental impact
System optimization
Policies and Regulations

11. Field Testing

12. Laboratory Testing

13. Development of System Models

14. Poly-Generation System (Simulation Model)
3E Analysis
Costs
Primary Energy
GHG Emissions
Conversion/ Distribution
Poly-Generation System (Simulation Model)
Building/User Requirements
Heating
Cooling
Electricity

15. What?
Why?
How?
Results!
Conclusions!

16. Benefit of Micro-Cogeneration Systems
Primary Energy Demand
CO2 Emissions
250 50
[t/a]
[MWh/a] 45
20 % reduction
200 40
18 % reduction 35
150 30 25
100 20 15
Electricity net imp.
Electricity net imp. 50 10
Gas cond. Boiler
Gas cond. Boiler 5
Gas cond. CHP
Gas cond. CHP
Cogeneration
Reference
Cogeneration
Reference

17. Parameters Influencing Profitability
Operation time (5.000 h/a)
1.500
Investment ( €)
Gas price (0.047 €/kWh)
1.250
Share of own use (50 %)
Feed in tariff (0.037 €/kWh)
1.000
Electricity Price (0.22 €/kWh
750
500
Annual profit / deficit [€/a]
250
70%
80%
90%
100%
110%
120%
130%
-250
-500
Based on µCHP 5 kWel in Germany (investment grand 2250 €, generation bonus 5.41 €ct/kWhel)

18. What?
Why?
How?
Results!
Conclusions!

19. Integrated Microgeneration Systems
Energy Supply System
(Electricity, Gas, Fuels)
National/International Energy Supply
Neighbourhood/Community
District Heating/Cooling Plant
Building Energy Supply
Building
Heating
Cooling
Hot water
Electricity

20. Integration of a thermal storage is necessary
Conclusions
Sizing of System Components and control optimization are crucial parameters towards profitability
Integration of a thermal storage is necessary
Reduced losses, longer lifetime
Core component for flexible operation
At present optimization towards own-use of generated electricity
In future integration in “Smart-Grid” necessary
Load sharing
Integration of renewable energies

21. 4th International Conference on MicroGeneration,
More Information?
All Annex 54 reports are available from EBC website:
4th International Conference on MicroGeneration,
October 28-30, 2015
Tokyo, Japan

22. Thank you for your Attention
Picture: Per Balslev