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It’s more than mansions…..

Challenging the National Trust - installation of renewable energy generation and energy reducing initiatives…reducing its C02 use by 50% by 2020 Hofburg Congress, 10 th October 2013 Rory Cullen, Head of Buildings & Keith Jones, Environmental Adviser. It’s more than mansions….

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It’s more than mansions…..

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  1. Challenging the National Trust - installation of renewable energy generation and energy reducing initiatives…reducing its C02 use by 50% by 2020 • Hofburg Congress, 10th October 2013 • Rory Cullen, Head of Buildings • & Keith Jones, Environmental Adviser

  2. It’s more than mansions….. • Our 4.3 million members can visit over 30,000 buildings and structures • including: • 710 miles of coastline Botallack South West

  3. It’s more than mansions….. • Our 4.3 million members can visit over 30,000 buildings and structures • including: • 710 miles of coastline • 236 mansions Little Moreton Hall North West

  4. It’s more than mansions….. • Our 4.3 million members can visit over 30,000 buildings and structures • including: • 710 miles of coastline • 236 mansions • 12 lighthouses Souter Lighthouse North East

  5. It’s more than mansions….. Corfe Castle South West • Our 4.3 million members can visit over 30,000 buildings and structures • including: • 710 miles of coastline • 236 mansions • 12 lighthouses • 28 castles

  6. It’s more than mansions….. • Our 4.3 million members can visit over 30,000 buildings and structures • including: • 710 miles of coastline • 236 mansions • 12 lighthouses • 28 castles • 78 mills Flatford Mill East of England

  7. It’s more than mansions….. • Our 4.3 million members can visit over 30,000 buildings and structures • including: • 710 miles of coastline • 236 mansions • 12 lighthouses • 28 castles • 78 mills • 25 medieval barns Great Coxwell Barn London & South East

  8. It’s more than mansions….. • Our 4.3 million members can visit over 30,000 buildings and structures • including: • 710 miles of coastline • 236 mansions • 12 lighthouses • 28 castles • 78 mills • 25 medieval barns • 61 pubs and inns Stickle Barn Tavern North West

  9. It’s more than mansions….. • Our 4.3 million members can visit over 30,000 buildings and structures • including: • 710 miles of coastline • 236 mansions • 12 lighthouses • 28 castles • 78 mills • 25 medieval barns • 61 pubs and inns • 57 villages Lacock Village South West

  10. It’s more than mansions….. • Our 4.3 million members can visit over 30,000 buildings and structures • including: • 710 miles of coastline • 236 mansions • 12 lighthouses • 28 castles • 78 mills • 25 medieval barns • 61 pubs and inns • 57 villages • 5,000 cottages Old Mill Cottage Brockhampton Midlands

  11. It’s more than mansions….. • Our 4.3 million members can visit over 30,000 buildings and structures • including: • 710 miles of coastline • 236 mansions • 12 lighthouses • 28 castles • 78 mills • 25 medieval barns • 61 pubs and inns • 57 villages • 5,000 cottages • 700+ farmsteads Wharfdale Yorkshire & North East

  12. Sustainability • Our Sustainability Principles: • Sustain the Trust - sustain our cause - sustain our assets - forever, for everyone • Live frugally, enjoy life but within our (and our planet's) means • Do as we would be done by - ethical, responsible, accountable • Live off the interest, not off the capitals (natural, human, social, cultural, financial capital) • Light on our feet, innovative and creative, adaptive and responsive, fit for the future, learned from the past

  13. Energy • We are committed to an overall reduction in the Trust's energy use, regardless of whether it comes from fossils or renewables • Our number one priority is to promote energy saving in our everyday activities • Wherever possible, we also aim to replace fossil fuels with cleaner or renewable sources such as hydro, solar and wood fuel • Our wider energy strategy is about engaging with supporters, partners, communities and tenants

  14. The National Trust Approach -‘Bronze Standards’ • Low-cost, relatively unobtrusive and therefore feasible for most existing buildings • Incorporated into buildings during repainting/ refurbishment works and short term cyclical (STC) programmes over the course of five years • Many buildings will already have some of these measures in place

  15. ‘Bronze Standards’ • Priority 1 • Maximum roof insulation • Draught proofing • Priority 2 • Water-saving measures (eg water meters, flow controllers, leakage prevention, low-flow taps, low-volume flush cisterns, and low-water use showers) • Rainwater storage, re-use of underground cisterns etc • Priority 3 • Efficient boilers • Heating controls (eg Thermostatic Radiator Valves) • Efficient lighting systems (eg. passive infrared (PIR) controlled, low energy, zoned, etc.) • Wood burning stoves • Standards specific to retail/ catering outlets (eg ventilation systems with heat recycling units, smaller dish washers, efficient energy rated appliances etc)

  16. Buscot and Coleshill http://www.youtube.com/watch?v=XvZcMAdCfs8

  17. THE PROBLEM! These buildings perform differently Modern Traditional ENGLISH HERITAGE but this is not understood by most people, even Contractors

  18. Wall build up Walls – What is the Thermal Value? Solid Walls U-Value Research by the SPAB Solid wall (homogenous) 46.3% better Courtesy Caroline Rye / SPAB

  19. Walls with Cavities – Limestone & Plasterboard Walls – What is the Thermal Value? Wall build up 95.9% better (Without Dry Lining = 2.0 W/m2K) Courtesy Caroline Rye / SPAB

  20. Best Practice ‘Retrofit’ • STBA • SUSTAINABLE TRADITIONAL BUILDINGS ALLIANCE Created to promote a better understanding and more informed approach to traditional buildings by both mainstream and heritage crafts and professions STBA Aims: • To identify what knowledge exists • To assess knowledge quality • To undertake a gap analysis • To identify actions needed to fill gaps/ uplift quality • To recommend a risk analysis approach www.retrofitbuildings.com

  21. What knowledge infrastructure do we have? Building Design Guides Formatted Knowledge Building Specifications Knowledge Capture (Templates)

  22. Morden Hall • Test bed for multiple Green technologies • Renewable energy generation/ demonstration project including: • Solar slates PV panels • Solar thermal panels Air Source Heat Pump • Hydro scheme Wood burning stove • Insulation trials Glazing trials • Green roof Rainwater harvesting • All applied to historic Victorian stable yard and buildings

  23. Skills/ Low Carbon Agenda - Now & in the Future • Emerging understanding of challenges: • Traditional building understanding – issues with ‘U’ values • Research (BRE, STBA, EH, SPAB, Historic Scotland) • Retention of Skills (NHTG Reports) • ‘Retrofit’ training – short courses, National Occupational Standards (NOS) • CSCS Heritage Cards • Accredited degrees/ Masters courses in Heritage & Sustainability

  24. Practicalities and learning

  25. Context

  26. Building use changes

  27. Heating changes

  28. Plas Newydd case study 2009 128,000ltrs of oil pa 1500ltrs pd in winter 1,200,000Kwh pa 300,000kwh of electricity

  29. What’s happening?

  30. Typical property energy approach – Plas Newydd Marine source heat pump 2013 50kw PV installed Heat pump full feasibility Dynamic heat loss model Wind turbine feasibility Heat pump design and EIA Specialist survey Low heat dynamic model Hand dryer trial New heat main Maintenance contract Hydro pre feasibility Full biomass feasibility Detailed M&E assessment and room by room heat loss Localised solar thermal Optimisation BMS strategy Overhaul boiler Staff training Site audit Roof insulation New heat main and zonal design Improving shutters and curtains Flange insulation Site re audit Staff training Conservation LED lighting Visitor centre heating - ASHP Hand dryer rollout Sub metering, meter monitoring Heat pump pre feasibility Secondary glazing LED lighting Fabric insulation – tea room Smart metering

  31. Technology is only one part

  32. Lessons

  33. Where to invest?

  34. Sustainable????

  35. Skills/ Low Carbon – Now & in the Future • Opportunities: • Green Deal/ ECO (Energy Company Obligation) finance? • Monitoring (smart metering, performance benchmarking etc) • User culture • On-site generation • Carbon Trading

  36. www.ntenvironmentalwork.net

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