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DT117/4 Sustainable Build & Design - Class Presentations

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Seai presentation sr

  1. 1. Sinéad Reynolds
  2. 2. Who they are? <ul><li>National Energy Agency </li></ul><ul><li>Sustainability Act 2002 </li></ul><ul><li>Sustainable Energy Authority of Ireland </li></ul><ul><li>Mission: To promote and assist the development of sustainable energy </li></ul>Sinéad Reynolds
  3. 3. What they do? <ul><li>Focus: </li></ul><ul><li>Energy Efficiency </li></ul><ul><li>Renewable Energy </li></ul><ul><li>Reduce Greenhouse Gasses from energy </li></ul><ul><li>Reduce Adverse Emissions (incl. GHG) from energy </li></ul>Sinéad Reynolds
  4. 4. Sinéad Reynolds How it is done. <ul><li>Built Environment: </li></ul><ul><ul><li>EPBD/Home Energy Rating </li></ul></ul><ul><ul><li>SEBNet </li></ul></ul><ul><li>Industry: </li></ul><ul><ul><li>Large Industry Energy Network (LEIN) </li></ul></ul><ul><ul><li>Training/Support </li></ul></ul><ul><li>Customer Service: </li></ul><ul><ul><li>Customer Information </li></ul></ul>
  5. 5. 5 Step Approach to Energy Management for Business Sinéad Reynolds
  6. 6. Energy Audits Objective <ul><li>Type of energy is being used. </li></ul><ul><li>How much is being consumed. </li></ul><ul><li>Cost of Energy </li></ul><ul><li>Where the energy is being used. </li></ul>Sinéad Reynolds
  7. 7. Energy Audits - Questions <ul><li>How efficiently is the energy being used? </li></ul><ul><li>What are the potential savings? </li></ul><ul><li>How can they be achieved? </li></ul><ul><li>How much will it cost to achieve savings? </li></ul><ul><li>What are the priority areas? </li></ul>Sinéad Reynolds
  8. 8. Performance Indicators <ul><li>Comparison of performance against benchmarks </li></ul><ul><li>Expressed as kWh/m ²/year </li></ul><ul><li>Useful for identifying priority buildings </li></ul><ul><li>Useful for identifying priorities within buildings </li></ul><ul><li>(e.g. gas, electricity & water) </li></ul>Sinéad Reynolds
  9. 9. Benchmarks kWh/m ²/year Sinéad Reynolds
  10. 10. Areas for Savings <ul><li>Design of buildings and services </li></ul><ul><li>Specification of energy using equipment </li></ul><ul><li>Management and use of equipment </li></ul>Sinéad Reynolds
  11. 11. Heating & Ventilation Saving Areas <ul><li>Boiler Efficiency – combustion efficiency test </li></ul><ul><li>Distribution System </li></ul><ul><li>Controls </li></ul><ul><li>Hot Water </li></ul><ul><li>Fabric Improvements </li></ul><ul><li>Heat Recovery </li></ul>Sinéad Reynolds
  12. 12. Electrical Saving Areas <ul><li>Lighting: </li></ul><ul><ul><li>Lamp Type, fitting, control and use of daylight </li></ul></ul><ul><li>Fans & Pumps: </li></ul><ul><ul><li>Control, Extract Fans and Maintenance </li></ul></ul><ul><li>Refrigeration: </li></ul><ul><ul><li>Temperature, Sealing </li></ul></ul>Sinéad Reynolds
  13. 13. Energy Awareness Events <ul><li>Raise awareness among staff </li></ul><ul><li>Staff are more willing to help if their input is wanted and appreciated </li></ul><ul><li>Allow staff to make a difference </li></ul><ul><li>Recognise and reward success </li></ul><ul><li>Keep staff informed of any developments arising from their input </li></ul><ul><li>Climate change affects us all! </li></ul>Sinéad Reynolds
  14. 14. Energy for the home <ul><li>Servicing Boiler: </li></ul><ul><ul><li>Save up to €150 per year </li></ul></ul><ul><ul><li>Servicing oil or gas boiler improves overall efficiency by 10% </li></ul></ul><ul><li>Servicing Boiler Benefits: </li></ul><ul><ul><li>Saves money - reducing heating costs </li></ul></ul><ul><ul><li>Reduces CO2 emissions - benefiting the environment </li></ul></ul><ul><ul><li>Gives peace of mind - improving boiler's reliability and safety </li></ul></ul>Sinéad Reynolds
  15. 15. Natural Lighting in the Home <ul><li>Rooms should be furnished to allow daylight in. </li></ul><ul><li>Furniture and other obstacles should not obstruct daylight penetration of the room. </li></ul><ul><li>Paint surfaces of rooms, including ceilings, should be colours of high reflectance to maximise the day lighting opportunities </li></ul><ul><li>(also the effectiveness of artificial light). </li></ul><ul><ul><li>Light colours reflect up to 80% of incident light while deep / dark colours might reflect less than 10% of incident light. </li></ul></ul><ul><li>Dirt on vertical windows reduce performance by 10% and even more if the dirt is allowed to build up on roof-lights. </li></ul>Sinéad Reynolds
  16. 16. Artificial Lighting in the Home <ul><li>Artificial lighting should remain off as long as there is sufficient daylight. </li></ul><ul><li>Lighting should be as efficient as possible to meet the household requirements. </li></ul>Sinéad Reynolds
  17. 17. Insulating the Home <ul><li>Insulating attic can save up to 20% on heating bill. </li></ul><ul><li>Wall insulation can be increased in a number of ways. </li></ul><ul><li>(i) insulated dry lining, </li></ul><ul><li>(ii) blown mineral or cellulose fibre or polystyrene beads into the cavity, or </li></ul><ul><li>(iii) rigid external insulation with render or brick finish. </li></ul><ul><li>Double glazed units when replacing windows. </li></ul><ul><li>Much of the heat loss from a house occurs through the windows particularly if they are single glazed. </li></ul><ul><li>A cylinder with factory applied insulation should be considered. </li></ul><ul><li>A lagging jacket on hot water cylinder will keep water hotter for longer and pay for itself in 2-3 months </li></ul><ul><li>Closed curtains at night should not hang over the radiators. </li></ul><ul><li>A reflective foil, backed by insulation if space permits should be fixed behind radiators mounted on external walls </li></ul>Sinéad Reynolds
  18. 18. Conclusion <ul><li>Effective Energy Management does bring real benefits through </li></ul><ul><ul><li>Reduced Costs </li></ul></ul><ul><ul><li>Reduced environmental footprint </li></ul></ul>Sinéad Reynolds