ENERGY EFFICIENCYMETHODS ANDTECHNIQUESPat Murphy
Energy Efficiency Methods and TechniquesChoosing to manage the way you use energy means youcan have lower bills, a warmer, healthier home and less ofan impact on the environmentEssentially improvements in energy efficiency enableachievement of the same result with less energy orachieving an improved performance with the same energyWhat does all this mean to you?More comfort and more savingsMore performance less energy
Energy LegislationEU Energy and Climate Change Package agreed at theEuropean Council in December 2008, (i.e. 20% efficiencyimprovement, 20% renewable energy penetration and 20%greenhouse-gas emissions reduction by 2020).EU Energy Services Directive (ESD)Member States to achieve a 1% per annum energyefficiency improvement, resulting in a cumulative target of a9% improvement in energy efficiency by 2016.
Energy EfficiencyEnergy Performance of Buildings Directive (EPBD)Energy performance standards Part LLimitation of Heat Loss through the Building FabricBuilding Energy Rating (BER) certificate, which iseffectively an energy label, is now required at the point ofsale or rental of a building, or on completion of a newbuilding.http://www.environ.ie/en/TGD/
Building Energy Rating (BER) kWh/m2/year kgCO2/m2/year CDER (TGD L) carbon dioxide emission rate Why? Protect buyers and renters of property You should know the cost of heating a property before building buying or renting it Improve the standard of house building in Ireland
Energy Efficiency Methods and Techniques The average household in Ireland uses approximately 25,000 kWh of fuel and electricity each year The cost per household is between €1500 to €2000 per year on average 70% improvement ??
Energy Efficiency Methods and Techniques Many common air leaks are overlooked How many of the avoidable ones apply to your house....?
Energy surveyWhat Can Be Detected:Missing or improperly installed insulationEnergy losses caused by air infiltration and exfiltrationBuilding DefectsBenefits:Reduce your heating energy costsImprove the comfort of your homeImproved Indoor Air Quality
Non destructive test equipment An air tightness test using a blower door will measure the air leakage of your home and provide advice on how to eradicate air infiltration and draughts leaving you warm and snug in your home enjoying lower heating bills
Insulate, Insulate, Insulate…Heat will always flow from a warm area to a cold one.In winter, the colder it is outside, the faster heat from your home will escape into thesurrounding air.It is therefore vital that as much as possible is done to prevent this.Insulation makes it much more difficult for heat to pass through your house exterior.Roof and wall insulation will greatly reduce what is known as the U value.The lower the U value, the slower heat is lost - and the less energy you need tokeep your home warm.Insulationis your primary defence againstheat loss and heat gain through the house envelope
Insulate, Insulate, Insulate… To get the biggest savings, the easiest place to add insulation is usually in the attic. U Value .16
Secondary HeatingIndependent research shows stovesare three times more efficient thanopen fires.While anything up to 70 per cent ofheat from an open fire goes straight upthe chimney, stoves retain as much as70 per cent heat in the home.
Heating controlsCan you heat your domestic water independent of space heating?Can you turn on your heating without heating your domestic water?Can you easily adjust the heat output from radiators ?Have you time control on your heating system that you can set for a week?Have you a separate temperature control for you hot water cylinder?Have you a separate time control on your hot water cylinder?
Energy efficient equipmentThe systems you use in your home have a big impact onyour energy use and your environmental footprint
Glazing Single Glazing 4.8 Double glazed Air Filled 3.1 Double Glazed gas filled 2.9 New Building Regulations 2011 U-Value of Windows < 1.6
Air Tightness Good airtightness allows you to control your homes ventilation. Ventilation is an important part of a healthy indoor environment, as it helps maintain air quality and remove moisture
Efficient LightingINCANDESCENT MINIMUM LIGHT CFL LAMPS Saving over 70LIGHT BULBS OUTPUT Hours Watts Lumens Watts 1 K/Watt = 1 Unit of Electricity 40 450 9 - 13 1 . 890 Kw 60 800 13 - 15 3 . 150 Kw 75 1,100 18 - 25 3 . 500 Kw 100 1,600 23 - 30 4 . 900 Kw 150 2,600 30 - 52 6 . 860 KwOne unit of electricity is exactly equal to 1000 Watts of power used for 1 hourInstall solar tube-type lighting in walk-in-wardrobes and toilets, where naturallight can easily and effectively simulate artificial lighting.
Turn it down – or off Device Standby (Watts) On (Watts) Hi-fi/Stereo 12 22 TV 10 100 Video recorder 1 13 DVD player 7 12 Digital TV set top 5 6 box Computer + 15 130 peripherals ComputerBuy A Rated Appliances monitor 11 70 Laptop computer 2 29Wash at lower temperatures Broadband 14 14 modem Answering 3 3 machine Battery charger 2 14 Mobile phone 1 5 charger Total: 83 Watts 418 Watts
Simple Improvements – At HomeTurn your heating down to a comfortable 20ºC -lowering your thermostat by 1ºC will knock 10% off yourheating bill.Wait for the dishwasher to be full before you switch it onSwitch off lights when you leave a roomAvoid unnecessary electricity use between 5pm and7pm - help reduce national CO2 emissions.Dont overfill your kettleUse cold water for washing your clothesFix dripping hot taps
Some words of caution!!!Don’t store water at temperatures less than 60°C ***– danger of Legionella disease ***Mixing valves will enable distribution at lower temperatures at 50°C to prevent scaldingFor older people just 1°C fall in room temperature can leadto a rise in blood pressure, a lower core body temperatureand colder extremitiesBeing cold in the home increases the risk of strokes andheart attacks and exacerbates COPD Chronic Obstructive Pulmonary Disorder.Don’t close room vents ***– danger of Carbon Monoxide poisoning *** FIT a Carbon monoxide monitor
Ingredients for a warm, healthy home Attic and wall insulation Efficient Space Heating Heating system + Controls Draught minimization Windows (if they are old or need repairs) Alternative energy such as solar heating Good Habits Energy efficiency is not about going without It is about getting more for your money and stopping the waste
Where to get further informationDepartment of the Environment www.environ.ieESB www.esb.ieSustainable Energy Authority of Ireland www.seai.ieLeitrim.ie www.leitrim.ieLeitrim Development Company www.ldco.ieLeitrim County Council www.leitrimcoco.ieSmartheat www.smartheat.ie www.facebook.com/Smartheat.ie THANK YOU