The importance of per second sampling when monitoring energy, no other resolution will let you understand exactly what power your using at any given time.
Human Factors of XR: Using Human Factors to Design XR Systems
monitoring energy in real-time
1. The benefits of
second by second
energy monitoring
and Instantaneous
live usage
feedback for
energy saving and
behavioral change.
Green Running Presentation
IHG
1
2. How it works – why beneficial?
All energy readings are a combination of multiple devices all on and
Drawing power at the same time.
Kettle
Toaster
Microwave
Green Running Presentation rev1 JM.pptx
IHG
2
3. How it work..cont
All energy readings are a combination of multiple devices all on and
drawing power at the same time
Every appliance has an effect on the total load
Water Heater
Ice Machine
Green Running Presentation rev1 JM.pptx
IHG
3
4. Full Day half hourly
Good for bench marking and seeing trend data
White = Phase One
Green = Phase Two
Red
= Phase Three
Green Running Presentation rev1 JM.pptx
IHG
4
5. Full Day Second by Second
Immediately see the large devices are using power
Could also miss vital information like power cuts to your building
Green Running Presentation rev1 JM.pptx
IHG
5
6. Zooming In Second by second
Can see exactly what is turning on and off
Detail of power cut risk
Green Running Presentation rev1 JM.pptx
IHG
6
7. Zooming In Half hourly
Can see exactly what is turning on and off?
Green Running Presentation rev1 JM.pptx
IHG
7
8. Zooming In Minute
Not a huge amount better than half hourly
Hence bad press
Green Running Presentation rev1 JM.pptx
IHG
8
9. Green Running – what do I mean by
Second by second
Graph for half hourly data blurred data
Graph with Greater than second by second – blurred data but prettier
Graph for second by second data can actually see what is happening!
Perfect for ISO14:001 improvement
Green Running Presentation rev1 JM.pptx
IHG
9
10. Quick Example
Office hours are 8 – 4pm, office, no major machinery, lots of computers
Green Running Presentation rev1 JM.pptx
IHG
10
11. During
One VERY large device equivalent of ten kettles being turned off at the same time
Green Running Presentation rev1 JM.pptx
IHG
11
12. After
More like a normal day with some more obvious appliance uses
Saved thousands of pounds per year and the energy company more so
Green Running Presentation rev1 JM.pptx
IHG
12
13. End of Techy Part
Green Running Presentation rev1 JM.pptx
IHG
13
14. Behavioural change
LIVE – “REAL TIME” second by second stream to the Display
First time people can actually see the differences in cost for each item
A cause and effect when someone turns on an appliance
Green Running Presentation rev1 JM.pptx
IHG
14
16. Displays – Real time tools
• Compare consumption & cost across floors,
buildings, & sites
Green Running 121112.ppt
UKPN
16
17. Displays – Trending and BenchMarks
• Compare consumption & cost with previous
data & “Perfect Days”
17
18. Displays – Second by second
Combining existing behavioral change feedback with second by second displays
Gives even greater understanding and awareness to employees - eViewer
Behavioural change – Staff can see how their cause and effect is being
monitored. Allows people to gain a greater understanding of what is actually using
the power
Educational tool - Shows the difference between the niceties and actually
energy saving factors
Leaving on the air conditioning overnight is equivalent to 500 LED bulbs or
100 60W bulbs
Green Running Presentation rev1 JM.pptx
IHG
18
19. Alarms and Warnings
Be told your about to have a power cut prior to having one
Be informed if there was any out of hour irregular usage – Security
Green Running Presentation rev1 JM.pptx
IHG
19
20. 14001 : Perfect
• Quote from Gardline 140001 report
• Quote from Crown Plaza group head
Green Running Presentation rev1 JM.pptx
IHG
20
21. Faster Sampling than every second?
Real Time displays – 0.1 second is perfect and smooth, one second is
ideal and gives you everything you need, anything more is better than
nothing but you lose information
Sampling at 50 KHz (50,000 times per second) gives harmonic information,
power, frequency, each appliance usage and effect on power factor factor.
MOT – Just want to just understand where you
are, don’t go and spend money on being capital
energy saving equipment unless you actually
know where you are at and what you need.
Green Running Presentation rev1 JM.pptx
IHG
21
23. Does it cost more?
To send 86400 data-points up to our dedicated server = 3MB per day
Less than 30secs of Facebook browsing!
The equipment cost is the same, it is a custom built hardware with the
same chips as meters, just with more sophisticated software platform
allowing the speed and analysis
The storage is on the Microsoft azure dedicated data platform so is a
cheap storage version and less than £25 per month.
Green Running Presentation rev1 JM.pptx
IHG
23
25. eController
eAnalyser
What’s In The Box:
What’s In The Box:
- eController Unit
- eAnalyser Unit
- 3 x Clamps
- 3 x Clamps
- Power Supply
- Power Supply
- Ethernet Cable
- Ethernet Cable
- ? 1 Year’s Database ?
- ePlug Single Phase Measurement Too
- Aluminium Carry Case
- ? 1 Year’s Database ?
Green Running Presentation rev1 JM.pptx
IHG
- Aluminium Carry Case
25
26. Complete Product Suite
Audits
Cloud
eAnalyser
Graphical Web Interface
for awareness & control
Monitoring
MOT
eController
Green Running 121112.ppt
Smart Plugs &
Other Tools for
Switching &
Control
Alarms & trends
sent to phones
tablets. Also
displays live data
UKPN
Government
Energy
Reports
Customisable
Reports
26
27. Installation
Office facilities for ~50 staff
Outgoing
Armoured Cables
Handful of 3-phase machines
3-Phase supply
Automated Meter Reading (wireless)
E-ON supplier with Elster A1700
Energy audit using eAnalyser = 1 month
Identified major sources of consumption
Identified significant phase imbalance
Clamps to
3 Phases
Results So Far…
Identified major sources of consumption using
eAnalsyer on main circuits & specific machinery
Supported staff education & training
Reduced consumption >10%
Ethernet
LAN
Detected significant phase imbalance
3 Phase Mains
Incoming from
(Billing) Meter
eController permanent installation
Green Running 121112.ppt
eController
UKPN
27