Greenwich Sustainability Conference 15 th 16 th November 2011

Transcription

1 Greenwich Sustainability Conference 15 th 16 th November 2011 NATIONAL TRUST ENERGY EFFICIENCY LESSONS LEARNED Rory Cullen, Head of Buildings, National Trust/ Malcolm Anderson, Environmental Practices Advisor, National Trust The National Trust looks after over an estimated 30,000 buildings and structures including: 710 miles of coastline Botallack South West 1

2 The National Trust looks after over 30,000 buildings and structures including: 710 miles of coastline 234 mansions Botallack Little South Moreton West Hall North West The National Trust looks after over 30,000 buildings and structures including: 710 miles of coastline 234 mansions 12 lighthouses Botallack Souter Lighthouse South West North East 2

3 The National Trust looks after over 30,000 buildings and structures including: 710 miles of coastline 234 mansions 12 lighthouses 28 castles Botallack Corfe Castle South West South West The National Trust looks after over 30,000 buildings and structures including: 710 miles of coastline 234 mansions 12 lighthouses 28 castles 78 mills Botallack South Flatford West Mill East of England 3

4 The National Trust looks after over 30,000 buildings and structures including: 710 miles of coastline 234 mansions 12 lighthouses 28 castles 78 mills 25 medieval barns Botallack South Great Coxwell West Barn London & South East The National Trust looks after over 30,000 buildings and structures including: 710 miles of coastline 234 mansions 12 lighthouses 28 castles 78 mills 25 medieval barns 61 pubs and inns Botallack South West The Kings Head London & South East 4

5 The National Trust looks after over 30,000 buildings and structures including: 710 miles of coastline 234 mansions 12 lighthouses 28 castles 78 mills 25 medieval barns 61 pubs and inns 57 villages Botallack South West Lacock Village South West The National Trust looks after over 30,000 buildings and structures including: 710 miles of coastline 234 mansions 12 lighthouses 28 castles 78 mills 25 medieval barns 61 pubs and inns 57 villages 5000 cottages Botallack South Old West Mill Cottage Brockhampton Lacock Village South West 5

6 The National Trust looks after over 30,000 buildings and structures including: 710 miles of coastline 234 mansions 12 lighthouses 28 castles 78 mills 25 medieval barns 61 pubs and inns 57 villages 5000 cottages 700+ Farmsteads Botallack South West Wharfdale Yorkshire Lacock & Village North East South West Why? 6

7 Climate change 7

8 But Resources 8

9 Resources Resources "The predominant factor by far is supply and demand; the fact that global production and capacity haven't increased appreciably over the last 10 years, while demand has continued to grow and inventories are at low levels. Henry Paulson, US Treasury Secretary

10 Resources 10

11 NATIONAL TRUST STRATEGY What? 11

12 NT energy use % 27% 50% Electricity Mains gas Heating oil LPG 15% 2020 goal 50% 5% 27% 10% 8% Electricity Mains gas Heating oil LPG Renewables 12

13 2020 goal Efficiencies (i.e. using less) 10,000 Top 33 properties off oil 10,000 Micro-generation 7,000 Medium-scale hydro (5k) and wind (20k) 25,000 Total MWhrs 52,000 How? 13

14 How? Energy audits MMS Understand where the quickest wins are Identify opportunities for change Building Design Guide Renewable Energy Map Internal Communications Loss of the Normans Plan in change Bronze standard within five years Training & Development How? 14

15 How? Property Building Action Saving Cost Payback Lacock Fox Talbot Museum Draught Proof doors and windows Medium Low Short Lacock Fox Talbot Museum Insulate gaps around eaves Medium Low Short Lacock Fox Talbot Museum Replace Boiler with renewable alternative Small High Long Lacock Fox Talbot Museum Replace bulbs on track based lighting High Low Short Lacock Fox Talbot Museum Replace all of museum lighting High Medium Medium Lacock Museum Flat Ensure sub meters are read and usage recharged Small None Immediate Lacock Museum Staff Room Replace Night Storage heater with panel heater Small Low Medium Lacock Green Houses Install DIY heat sink and small solar powered fan to reduce heat requirements Medium Low Short Lacock Abbey Change servicing contracts to look at whole system Medium Medium Medium Lacock Abbey Insulate joints in boiler room Medium Low Short Lacock Abbey Examine pipe runs and insulate areas that do not require heat Medium Medium Medium Lacock Abbey Insulate joints on pipework across house Medium Low Short Lacock Abbey Insulate roof void High Medium Medium Lacock Abbey Make more use of the open fires Medium Low Immediate Lacock Abbey Change light bulbs to low energy equivalents Small Low Short Lacock Abbey Examine use of alternative portable heat sources for volunteers Medium Low Short Lacock Abbey Chimney balloons in unused chimneys Small Low Short Lacock 2 High Street Use curtains or sausage dogs on external doors Medium Low Short Lacock 2 High Street Chimney balloons in unused chimneys Small Low Short Lacock 2 High Street Reflective radiator panels behind each radiator Small Low Short Lacock High Street Shop Ensure most efficient lighting is installed Medium Medium Short Lacock Building Team Workshop Install false ceiling and insulate Medium Medium Medium Lacock Building Team Workshop Replace radiant heaters with wood fuel based hot air blower Medium High Medium Lacock Paint Store Replace storage heater with panel heater working on thermostat Medium Medium Medium Lacock Paint Store Insulate over wooden beam in ceiling Medium Low Short Lacock Manger Barn Draught Proof doors Medium Low Short Lacock Estate Office Encourage switch off of computers etc Small None Immediate Lacock Estate Office Replace storage heaters with panel heaters working on thermostat and timer Medium Medium Medium Lacock The Courts Install DIY heat sink and small solar powered fan to reduce heat requirements Medium Low Short Lessons Learnt Building Design Guides 15

16 Bronze Standards Priority Minimum standard Considerations 1 2 Maximum roof insulation Draught-proofing Improved draught-proofing in unused chimneys, etc Improved insulation to cavity walls, solid walls and floors Double-glazing in modern buildings or new windows Secondary (seasonal) glazing in traditional or listed buildings Cylinder jackets Water-saving measures, including water meters, flow controllers, leakage prevention, low-flow taps, low-volume flush cisterns, and low-water use showers (installed above baths or separate cubicles) Rainwater storage, including rainwater butts, re-use of underground cisterns, etc Ventilation requirements Bat roosts in existing buildings Bat roosts in existing buildings Sensitivity of building Aesthetics Planning consents Aesthetics and screening outside significant buildings More efficient boilers and compliant fuel storage/supply systems Thermostatic and other means of control to heating (including comfort heating in properties open to the public) and improved metering equipment 3 Efficient lighting systems (eg. passive infrared (PIR) controlled, low energy, zoned, etc.) Wood-burning stoves Standards specific to retail/catering outlets: ventilation systems with heat-recycling units induction cooking smaller dish washers efficient energy-rated appliances flow-restricted taps low energy tills Availability of sustainable source of fuel 16

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18 Microgeneration Renewable Projects in the Trust 180 renewable systems have now been installed, including PV, hydro, biomass boiler systems, and ground source heat pumps Ground source heat pumps, air source heat pumps - 37 PV cells/panels/roof slates - 61 Solar thermal panels Biomass boilers & wood pellet boilers 18

19 - 15 wind turbines - 31 Hydro (various) waterless urinals - A few Green roofs - Rainwater harvesting - Currently no District Heating Systems 19

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21 Shock of the new 21