1. NI Housing Executive Energy Efficiency of Housing Noel Rice 20th November 2013

2.  Energy Conservation Strategic Context  House Condition Survey 2011  NIHE Heating Policy  Current Projects  Cavity Wall Insulation Research  Solid Wall Insulation  Solar PV Panels  Renewable Pilot Projects  Economic Benefits of Energy Efficiency Contents

3.  NIHE is Home Energy Conservation Authority  Energy efficiency of housing improved by 22.4% since 1996 – All tenures  Energy rating up from 41 to 60 (46 to 55 in England over same period)  Savings of 2.5m tonnes of CO2 pa  However, fuel poverty has increased  Fuel prices and income are factors Energy Conservation Strategic Context

4. Heating Systems- All tenures

5. Wall Insulation2011- All tenures

6.  Cavity wall insulation where appropriate  Costs £450 - £500  Savings – Up to £140pa  Mineral Wool or Bonded Bead  Quality Issues – Sufficient fibre at right pressure/density – sufficient glue for beads  Cavity should be at least 50mm wide  Check external wall condition/exposure  Current investigative research project ongoing Cavity Wall Insulation

7. Loft Insulation 2011 – All tenures

8.  270mm of loft insulation  Costs around £300  Savings (0-270mm) Up to £180pa  Savings (100mm to 270mm) £25pa  Ventilation and wiring issues  Hot Water Tank – DIY Cost £15 – Savings £45pa  Pipes – DIY Cost £10 – Savings £15pa  Draught proofing with appropriate ventilation * All figures from EST for 3 bedroom gas heated semi Loft Insulation

9. Double Glazing 2011- All tenures

10.  Natural Gas where available  Network may move West  Outside gas area  Oil Condensing Boiler or  Wood Pellet Boiler  Solid Fuel open fire (exceptional basis)  Secondary Sources  Solid Fuel Open Fire (no boiler)  Focal Point electric Fire  Evaluate range of innovative alternative NIHE Heating Policy

11. Annual Cost £  House Coal1318  Oil Non-Condensing1573  Oil condensing1287  Gas Condensing (PNG)1093  Gas Non-Condensing1327  Gas Condensing (Firmus) 1041  Wood Pellet Boiler 1055  Economy 7 1761  LPG Condensing2020  LPG Non-Condensing2463  Boiler upgrade from G to A can save£300 pa Heating Costs – 3 bed semi

12.  Initially Greater Belfast 1996-2007  Firmus Network; Newry, W’point, Banbridge, Armagh, Craigavon, Antrim, Ballymena, Ballymoney, Coleraine, Limavady and Derry  Includes rural villages en route  Gas to the West  licence competition 2013/14  NI Assembly committed £32.5m  Includes towns of Dungannon, Coalisland, Cookstown, Magherafelt, Omagh, Strabane, Enniskillen and Derrylin Gas Network

13.  Is there a problem with existing CWI?  Possible problems maybe:  Fibre insulation – e.g. has it settled?  Bonded bead – e.g. sufficient glue?  Insulation board – e.g. properly fitted? Cavity Wall Insulation (CWI) - Research

14.  NIHE – commissioned research on 300 dwellings across NI  Research being undertaken by SERC  Provide evidence base for remedial programme, if required  Make recommendations & shape policy CWI - Research

15. CWI - Upgrade

16.  120,000 solid wall houses in NI  83,000 no insulation - mostly private  Internal Wall Insulation £5.5k to £8.5k*  Savings £445pa  External Wall Insulation £9.5k - £13k*  Savings £475pa * Estimates from Energy Saving Trust based on heating a gas fired semi-detached dwelling with 3 bedrooms Solid Wall Insulation

17. Coleraine Project – Work in Progress

18.  Generates electricity from daylight  Use it or lose it  Renewable Obligation Certificates  Export Tariff  Costs have reduced in recent years  3kWp system costs £6k- £7k  Income generation £490pa plus bill  Plus lower bills  Rent a Roof Schemes available  Maintenance Solar Photovoltaic (PV) Panels

19. Solar PV Panels

20.  Heat water using light from the sun  Property should be south facing  Flat plate and evacuated tube  Installed in 2,032 NIHE Homes – EREF fund  Saves around £60-£85 per year – depends on usage pattern  DETI Grant OF £320 under Renewable Heat Premium Payment  Average Cost £2.5 to £4k  Maintenance – Anti-freeze, valves, hoses,… *Figures from EST Solar Thermal Panels

21. Solar Thermal Panel

22. Wood Pellet Boiler Average cost - £4K - £10K (Manually fed) Grants - Renewable Heat Premium Payment £2,500

23. Renewable Energy Heat Pumps Ground Source Heat Pump Average cost – £8k - £10K Grants – Renewable Heat Premium Payment £3,500 Air Source Heat Pump Average cost - £6K Grants – Renewable Heat Premium Payment £1,700 See www.detini.gov.uk

24.  Lower fuel bills – increased disposable income for spend on other things  Less fuel debt and fuel poverty  Reduced maintenance costs  Increased value of home  Greater warmth/comfort  Less risk of ill health  Energy programmes create jobs  Minimises economic cost of damage to environment Economic Benefits of Energy Efficiency

25.  Affordability of all fuels  Particular issue with budgeting for oil  Insulation for solid wall dwellings  Whole house approach  Funding required programmes  Income dimension of fuel poverty  Infrastructure improvements Challenges