Experts in Energy Saving Lighting & Heating talk about saving energy in University Halls of residence.

1. Saving Energy in
Halls of Residence
Chalmor - Commercial Director
Experts in Energy Saving Lighting & Heating
www.eTRV.co.uk

2. eTRV – Saving energy and carbon
eTRV - has the potential to save over
1.1 million tonnes CO2 p.a.
Award winning innovative Thermostatic Radiator Valve!
Funded by EEDA Research and Development Grant
Designed & manufactured in the East of England
Remote handset puts users in control of their heating
Potential to reduce bills by up to 25%
www.eTRV.co.uk

3. eTRV - Savings Potential
Home
Average home gas bill £823
Space heating @ 70% = £576
25% saving = £144
Payback based on 8 radiators = 3.33 years
Student Accommodation
Universities study with 133 residences
Total energy consumption of 237m kWh.
25% saving would save 59m kWH.
Potential carbon saving of >6m tCO2e p.a.
Also Social Housing, Offices, Hotels etc
www.eTRV.co.uk

4. Is there an opportunity to save?
www.eTRV.co.uk

5. eTRV in action – Halls of Residence

6. eTRV - Savings Potential
www.eTRV.co.uk

7. What is eTRV?
Programmable
Only heat rooms when needed
DIY upgrade
Precise control
Empowers a behavioural change
www.eTRV.co.uk

8. eTRV - putting the user in control
www.eTRV.co.uk

9. eTRV - putting the user in control
www.eTRV.co.uk

10. eTRV - Savings Potential
www.eTRV.co.uk

11. eTRV - Innovative
eTRV’s have the potential to save
considerably more than traditional TRV’s:
25
Patented sensors
20
Improved accuracy
Fast response
Temperature °C
15
Room zoning 10
3 Daily on/offs
5
Simple to use
0
www.eTRV.co.uk

12. eTRV - Savings Potential
www.eTRV.co.uk

13. eTRV - Savings Potential
www.eTRV.co.uk

14. eTRV – In action
Twice a day – morning
and evening 2.5 hrs
Once a day and all-day
historical data removed
Approximately 13Kw/day
cooking and water heating
subtracted
Monitored 25% savings!
Chris Gare http://www.gare.co.uk/gas.htm
www.eTRV.co.uk

15. eTRV – In action
Conclusions so far.
For the month of February I have clearly saved a goodly amount of gas -
probably around 20%. The reason for this is that I am able to turn the radiators
down using the timer capability in the evening period when we have a open fire in
the living room.
I believe the eTRVs are much more responsive to room temperature changes
and have much less hysteresis than the old mechanical TRVs. I had a similar
issue with the thermostat on my hot water tank until I installed an electronic
version.
I have found them more convenient for turning radiators off sporadically as
temperatures increase as spring comes.
Am I convinced they have benefits? Yes.
Chris Gare http://www.gare.co.uk/gas.htm
www.eTRV.co.uk

16. “The eTRV addresses a key issue for Higher Education
establishments. It is well known that electrically heated halls of
residences perform much better on energy consumption than
wet heated halls. This is due to distribution losses and
controllability. Students generally do not pay directly for
energy consumed so there is no incentive to limit their heating.
Traditional radiator with TRV systems are set at the highest level
on the first day of occupation and left that way all year. Electric
panel heaters have for some time been offered with run-on
timers that provide background heating and a manual boost for
when the conditions require it and the student is actually there.
The eTRV replicates this and with the addition of its internal
time clock allows for a night setback that further saves energy.
The University of Bristol wishes to provide a comfortable
environment at the lowest carbon impact and the combination
of gas fired heating and the controllability afforded by the
eTRV we hope proves to be a winning combination.”
Chris Jones Sustainability Manager (Energy) University of Bristol
www.eTRV.co.uk

17. Arrange a trial
today and start to
make savings!
www.eTRV.co.uk