1. Energy Management at DESY and a new Energy Monitoring System
3rd Energy for Sustainable Science Workshop
Eva Leister
Hamburg,

2. Energy Consumption at DESY in 2014

3. Electricity Flow 2014

4. Load Profile of a DESY-buliding

5. Old energy data acquisition
Media: electricity, heating (district heating, natural gas), drinking water
Purpose:
Estimation of power consumption for contract design
further accounting of operating costs to other instituts on the campus etc.
Meter reading by respective department
Disadvantage:
Different meters in one building were read by different people
Different reading intervals (1-3 month)
No unified meter marking
Data were stored in different excel files
Disadvantage: No unified and centralized data archive

6. New energy data acquisition
Unified meter marking
All data are entered to a self developed Excel Tool and are sent to a centralized Oracle database
All meters are read by the caretakers
All meters are read monthly
A part of the meters are directly connected to the database

7. „Zählertool“ *
*Developed by Narcisse Ngada and Eva Leister

8. „Energieverbrauchstool“ *
*Developed by Eva Leister

9. Energy Monitoring outlook
Select a suitable software
Installation of meters over the next 5 years
Detailed metering of bulidings and large facilities
Usage of the data for invoicing the costs to the users (e.g. other institutes)

10. DESY Heating System

11. “Old“ Heat Recovery
Heat Recovery
DESY Heating System

12. “Old“ Heat Recovery Built in 1992
Heatsource: Oil loop of the low pressure compressor of the Cryogenic plant
3 Tube Heat Exchangers
Heat Recovery in 2014: 1350 MWh/a ( ca MWh/a during the operating period of HERA)

13. “New“ Heat Recovery
Heatsource: Oil loop of the high pressure compressor of the Cryogenic plant
Heatsink: Whole DESY Heating System
Calculated Heat: ca MWh/a (1/3 of DESY heat consumption)

14. District cooling

15. New data center with direct Rack cooling

16. Free Cooling at 20°C-Cooling Systems

17. Conclusion Large power consumption
Expand and professionalize the Energy Monitoring
Important: Central coordination of all tasks concerning energy consumption
Energy efficiency projects:
Heat recovery will supply more than 1/3 of the DESY-Campus
District cooling with a high security of supply
Direct rack cooling in the data center
Free Cooling of 20°C-Cooling Systems
Saving energy= Saving money

18. Thank you for your attention!
Questions?