1. National Trust energy approaches

2. – http://www.nationaltrust.org.uk/main/w-energy-report-2010.pdf

3. 2009 2015 10,000Mwh pa National Trust (Wales) energy targets

4. Why is a mansion like a cow? PUT PUT PUT

5. The EPC story

7. Experience in energy

8. What’s happening?

9. Maintain

10. Identify opportunities and prioritise – Plan of Attack

12. Where were we starting from? 2009 128,000ltrs of oil pa 1500ltrs pd in winter 1,200,000Kwh pa 300,000kwh of electricity

13. Site audit Specialist survey Maintenance contract Optimisation BMS strategy Overhaul boiler Dynamic heat loss model Hand dryer trial Full biomass feasibility Heat pump pre feasibility Roof insulation Staff training Flange insulation Low heat dynamic model Detailed M&E assessment and room by room heat loss Heat pump full feasibility Secondary glazing Hand dryer rollout LED lighting 50kw PV instillation Smart metering Heat pump design and EIA Sub metering, meter monitoring Hydro pre feasibility Staff training Site re audit New heat main and zonal design Conservation LED lighting Marine source heat pump instillation Wind turbine feasibility New heat main Localised solar thermal Improving shutters and curtains Visitor centre heating - ASHP Fabric insulation – tea room Typical property energy approach – Plas Newydd 2011

14. Focusing on the basics can yield big results

15. Show and tell - typical old house

16. Windows – Do they shut properly? – Does the window frame fit? – How loose are the sashes? – Are curtains used? – Are they lined? – Shutters – Secondary glazing – Changing to double glazed panels?

17. Insulation – is it that simple? Roof, wall, floor, door…? Access? Fire and Insurance Insects and durability Ease of future access Cost Sustainability Freezing pipes Electrical cables? Condensation Oh yes and ‘What’s it like for vacuuming bat poo off’? Yes it is… ish?

19. 9kw high heat CO2 air source heat pumps currently on trial. Options for viable, low energy heating and hot water technology to replace the many thousands of oil based heating systems the NT have across their estate. Ability to retrofit on to the existing heating system. Voltage optimisation Air-to-air heat pump Replaces storage heaters Cheap to install

21. First Lower the load. Then work out how much you need

22. Lessons

23. – Appropriateness and compromise

24. Training and commitment

25. 300kw of Photovoltaics (PV)

26. Detailing

27. Sharing is key

28. www.ntenvironmentalwork.net