Micaela Basford from B&NES Council talks about the work on energy efficiency that the Council have done with schools in the B&NES region.

2. Schools energy programme
Cut wastage, save school budgets, save CO2
… and end up with more comfortable buildings.
The facts:
1. 78 schools in B&NES
2. Spend £2.2m each year on gas and electricity
3. 11,000 tonnes of CO2 and rising
4. Local and national targets to reduce CO2

3. Energy Surveys
Building fabric PeopleEnergy & heating
usage data

4. • Each site receive their own report
• The Council received an overall report
(Example of junior school report to circulate)

5. Business Case:
Typical Primary school
5
Cost saving (£) Cost (£)
Operating
cost (£)
Carbon
saving
(tCO2/yr)
% of
Energy
Cost
% of
CO2 Payback
Awareness £296 £0 £0 2 4% 4% 0.00
ICT £114 £0 £0 1 2% 1% 0.00
Control settings £151 £275 £0 1 2% 3% 1.83
HVAC - Recommission controls £402 £736 £0 3 4% 5% 1.83
Lighting £738 £2,679 -£11 4 12% 10% 3.58
HVAC - New controls £397 £2,275 £75 3 3% 3% 7.06
Renewables £909 £15,627 -£426 5 9% 7% 11.70
Boiler Replacement £739 £13,365 £0 5 5% 7% 18.08
£3,746 £34,956 -£362 22 42% 40% 8.51
Individual reports: Building fabric and systems

6. Individual reports: Building fabric and systems

7. Individual reports: data

8. Individual reports: data and diagnosing problems

9. Typical Primary school
9
The cumulative
cost avoidance
over the 5 year
period is:
£23,602
The annual
figure by
2015:
£3,934
Individual reports: Business case

10. Overall findings: Building fabric

12. Building Age and Energy Use
Overall findings: Building fabric

13. Gas AMR Analysis 2011 - 2012
Overall findings: Energy and heating usage data

15. • Adjust times and set points
• Gradual adjustment of frost protection
• Caretaker training
• Change log created
• Review impact of changes
• Go back to Schools if further tweaks required
….How to repeat annually? Integrate with annual boiler service?

18. Recorded Savings

19. The challenging bit!
• Lights and PCs left on
• ICT suite turned on 1st thing then off at the end of the day
• Kitchen staff turning sterilizers and hot cupboards on 1st
thing.
• No heating system is the same. Needs someone with
knowledge to tweak
• Heating times and settings set incorrectly
• Could make better use of AMR data to better understand
energy consumption. This is particularly useful for
identifying heating controls issues. But, needs someone
knowledgeable
19
Overall findings: People

22. Total Savings
Total Survey Results Analysis
Number of Schools Surveyed 71
Number of Identified Projects 483
Total Identified Utility Savings £432,208
Total Estimated Cost of Identified
Projects
£1,387,520
Total Annual Co2 Saving (tonnes) 2430
Combined Payback of Identified
Projects
2.5 Years
It is now up to schools to action and make their savings.
Overall findings: Business case