ENERGY EFFICIENCY METHODS AND TECHNIQUESPat Murphy

Energy Efficiency Methods and Techniques

Choosing to manage the way you use energy means you can have lower bills, a warmer, healthier home and less of an impact on the environment

Essentially improvements in energy efficiency enable achievement of the same result with less energy or achieving an improved performance with the same energy

What does all this mean to you?

More comfort and more savings

More performance less energy

Energy Legislation

EU Energy and Climate Change Package agreed at the European Council in December 2008, (i.e. 20% efficiency improvement, 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 energy efficiency improvement, resulting in a cumulative target of a 9% improvement in energy efficiency by 2016.

Energy Efficiency

Energy Performance of Buildings Directive (EPBD)

Energy performance standards Part L

Limitation of Heat Loss through the Building Fabric

Building Energy Rating (BER) certificate, which is effectively an energy label, is now required at the point of sale or rental of a building, or on completion of a new building.

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 survey

What Can Be Detected:

Missing or improperly installed insulation

Energy losses caused by air infiltration and exfiltration

Building Defects

Benefits:

Reduce your heating energy costs 

Improve the comfort of your home

Improved 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

Thermal Survey

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 the surrounding 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 to keep your home warm.

Insulation is your primary defence against heat 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 Heating

Independent research shows stoves are three times more efficient than open fires.

While anything up to 70 per cent of heat from an open fire goes straight up the chimney, stoves retain as much as 70 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?

Heating controls

Energy efficient equipment

The systems you use in your home have a big impact on your energy use and your environmental footprint

Glazing

Single Glazing 4.8Double glazed Air Filled 3.1Double Glazed gas filled 2.9

New Building Regulations 2011U-Value of Windows < 1.6

Air Tightness

Good airtightness allows you to control your home's ventilation. Ventilation is an important part of a healthy indoor environment, as it helps maintain air quality and remove moisture

Efficient LightingINCANDESCENT LIGHT BULBS

MINIMUM LIGHT OUTPUT

CFL LAMPS Saving over 70 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 Kw

One unit of electricity is exactly equal to 1000 Watts of power used for 1 hour

Install solar tube-type lighting in walk-in-wardrobes and toilets, where natural light can easily and effectively simulate artificial lighting.

Turn it down – or off

Buy A Rated Appliances

Wash at lower temperatures

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 box 5 6

Computer + peripherals 15 130

Computer monitor 11 70

Laptop computer 2 29

Broadband modem 14 14

Answering machine 3 3

Battery charger 2 14

Mobile phone charger 1 5

Total: 83 Watts 418 Watts

Simple Improvements – At Home

Turn your heating down to a comfortable 20ºC - lowering your thermostat by 1ºC will knock 10% off your heating bill.

Wait for the dishwasher to be full before you switch it on

Switch off lights when you leave a room

Avoid unnecessary electricity use between 5pm and 7pm - help reduce national CO2 emissions.

Don't overfill your kettle

Use cold water for washing your clothes

Fix 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 scalding

For older people just 1°C fall in room temperature can lead to a rise in blood pressure, a lower core body temperature and colder extremities

Being cold in the home increases the risk of strokes and heart 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 insulationEfficient Space HeatingHeating system + ControlsDraught minimizationWindows (if they are old or need repairs)Alternative energy such as solar heatingGood Habits

Energy efficiency is not about going withoutIt is about getting more for your money and stopping the waste

Where to get further informationDepartment of the Environment www.environ.ie

ESB www.esb.ie

Sustainable Energy Authority of Ireland www.seai.ie

Leitrim.ie www.leitrim.ie

Leitrim Development Company www.ldco.ie

Leitrim County Council www.leitrimcoco.ie

Smartheat www.smartheat.ie www.facebook.com/Smartheat.ie

THANK YOU