Building Energy Management Systems (BEMS) are integrated software, hardware, and service systems that monitor, automate, and control building systems like HVAC, lighting, and thermostats to increase energy efficiency and comfort. BEMS gather data from sensors and use it to control operations in real time to meet objectives like maintaining indoor climate, safety, and cost efficiency. The BEMS market is growing as the need increases to collect and interpret large amounts of building data. BEMS can reduce energy costs by 15-20% and improve indoor environments through automated control and monitoring of building operations.

1. Building Energy Management Systems:
system design and data requirements
4-oct.-16
Andreas Androutsopoulos aandr@cres.gr
BDE 2sd Workshop for Energy, Brussels 4/10/2016

2. BigDataEurope 2nd Workshop in Energy 4/10/2016
Building Energy Management Systems: system design
and data requirements p.2
Objectives of a BEMS
 to provide a healthy and pleasant indoor climate
 to ensure the safety of the user and the owner
 to ensure economical running of the building in respect of both
energy and personnel
www.big-data-europe.eu

3. www.big-data-europe.eu [Source: IDC, TXT 2015]
BigDataEurope 2nd Workshop in Energy 4/10/2016
Building Energy Management Systems: system design
and data requirements p.3

4. Building Energy Management Systems
Building Energy Management Systems (BEMS) is an integrated system of software,
hardware and services that controls energy use through information and
communication technology.
It monitors, automates, and controls building systems such as heating, ventilation, air
conditioning, thermostats, and lighting to increase building energy efficiency and
improve comfort in a very wide application area.
A BEMS can monitor, control, and use alarm operations regarding energy issues, indoor
conditions, power needs on a real time basis data coming from many various sources.
www.big-data-europe.eu
BigDataEurope 2nd Workshop in Energy 4/10/2016
Building Energy Management Systems: system design
and data requirements p.4

5. Building Energy Management Systems
Application
 Office Buildings
 Industries
 Residential buildings
 Commercial buildings
 Hospitals
 Hotels
 …..
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BigDataEurope 2nd Workshop in Energy 4/10/2016
Building Energy Management Systems: system design
and data requirements p.5

6. Building Energy Management Systems
The market of BEMS is
growing day by day so the
need to gather, control, and
interpret all collected data.
EMS revenue is expected to
grow to $10.8 billion by 2024.
www.big-data-europe.eu
[Source: Navigant Research, 2015]
BigDataEurope 2nd Workshop in Energy 4/10/2016
Building Energy Management Systems: system design
and data requirements p.6

7. www.big-data-europe.eu
BEMS offered
services
[Source: Navigant Research, 2015]
BigDataEurope 2nd Workshop in Energy 4/10/2016
Building Energy Management Systems: system design
and data requirements p.7

8.  Achieve Energy savings of 15-20% for heating, cooling, ventilation while
energy savings for lighting can be as high as 50-60%.
 Reduce energy costs and therefore lower operating costs.
 Automatic load cut and peak load management incurred decreased energy
costs.
 Improve the quality of the indoor environment.
 Greater building functionality and economy.
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The use of a BEMS can
BigDataEurope 2nd Workshop in Energy 4/10/2016
Building Energy Management Systems: system design
and data requirements p.8

9. www.big-data-europe.eu
Main network communications protocols
used for buildings installations
include
 KNX,
 EHS,
 BatiBUS the European Installation Bus (EIB),
 Bacnet
Physical communication media
 Twisted pair wiring,
 Powerline networking,
 Radio (KNX-RF), Infrared,
 Ethernet and
 3G/4G communications
Building Energy Management Systems
BigDataEurope 2nd Workshop in Energy 4/10/2016
Building Energy Management Systems: system design
and data requirements p.9

10. Data gathered from
 Energy meters,
Temperature sensors (air, surface, water)
 Relative humidity sensors,
 Air velocity sensors,
 Air-water flow sensors,
 Light sensors,
 Movements sensors,
 Pollution measurement sensors,
 actuators, etc.
BigDataEurope 2nd Workshop in Energy 4/10/2016
Building Energy Management Systems: system design
and data requirements p.10

11. BigDataEurope 2nd Workshop in Energy 4/10/2016
Building Energy Management Systems: system design
and data requirements p.11
Main components of a BEMS. [Source: MOD 2001] Typical functions of a BEMS. [Source: MOD 2001]
A BEMS configuration

12. BigDataEurope 2nd Workshop in Energy 4/10/2016
Building Energy Management Systems: system design
and data requirements p.12
Design considerations
 According to the needs
 Ease of use
 Complexity
 Level of automation
 Ability to upgrade / expand
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13. BEMS equipment in an office
building
BigDataEurope 2nd Workshop in Energy 4/10/2016
Building Energy Management Systems: system design
and data requirements p.13

14. www.big-data-europe.eu
BigDataEurope 2nd Workshop in Energy 4/10/2016
Building Energy Management Systems: system design
and data requirements p.14
BEMS application
Bioclimatic office building in Athens

15. www.big-data-europe.eu
BEMS visualization
BigDataEurope 2nd Workshop in Energy 4/10/2016
Building Energy Management Systems: system design
and data requirements p.15

16. www.big-data-europe.eu
BigDataEurope 2nd Workshop in Energy 4/10/2016
Building Energy Management Systems: system design
and data requirements p.16
Data
410 signals are recorded
• Sensors
• Actuators
• Controllers
• Dimmers
Data saved every 10
– 15 min.
Files of appr. 1 Mb/d

17. www.big-data-europe.eu
Temperature distribution
BigDataEurope 2nd Workshop in Energy 4/10/2016
Building Energy Management Systems: system design
and data requirements p.17
Electrical energy consumption

18. www.big-data-europe.eu
BigDataEurope 2nd Workshop in Energy 4/10/2016
Building Energy Management Systems: system design
and data requirements p.18
Sensors

19. www.big-data-europe.eu
In conclusion
A BEMS can lead to
 Increased energy efficiency
 Improved environmental conditions
 Reduction of overall costs through improved energy efficient use of E/M
systems and more efficient use of staff
BigDataEurope 2nd Workshop in Energy 4/10/2016
Building Energy Management Systems: system design
and data requirements p.19
Data management and real time monitoring are
2 key elements for the efficient use of a BEMS.

20. www.big-data-europe.eu
THANK YOU FOR YOUR ATTENTION
BigDataEurope 2nd Workshop in Energy 4/10/2016
Building Energy Management Systems: system design
and data requirements p.20