Energy Efficiency
Why be Energy Efficient?
By managing the way you use energy every day you can make a big difference to the warmth and comfort of your home. Energy efficiency is not about turning everything off and going without, it is about getting more for your money without the waste.
An energy efficient home is costs less to run, is warm and dry having a major impact on the health of the people who live there. And a few simple changes can mean significant savings on your power bill - all while being better for the environment.
Power / Energy Usage Tables - it PAYS to know what you're using
The table below can give you an indication of power usages of certain house hold items, based on the average electricity (kwh) rate of 3 main electricity suppliers in the Wellington region, Apr. 2011, and estimated appliance wattages.
Appliance | Typical Load (watts) | Apx. cost based on 24 Kwh (excl.gst) | |
Home Heating Fan Heater Radiant 2 bar (high) Radiant 1 bar (low) Oil filled (high) Oil filled (low) * Heat Pump 6 kw* Heat Pump 8 kw * Once a room has reached temperature a Heat Pump will only use as much power as required. Example; a 6kw heat pump may idle only using 2kw and cost only 11 cents per hour! Bathroom Heating Heat Towel Rail (7 bar) Heated Towel Rail (5 bar) Fan Heater(high) Fan Heater(low) Kitchen Appliances Fridge / Freezer (new) Dishwasher (new) Dishwasher (old) Chest Freezer (new large) Chest Freezer (new small) Microwave Oven Oven (roast) Oven (scones) Rangehood Crock Pot Laundry Washing Machine (cold load) Washing Machine (warm load) Front Loader (cold load) Front Loader (warm load) Lighting 100 w incandescent lamp 60w incandescent lamp 50w Halogen lamp 18w Energy savings lamp 5ft Flourescent Other Aquarium heater Computer and CRT monitor Dehumidifier (min/maz) Television | 2400w 2400w 1200w 2400 w 1200w 6000w 8000w 90w 50w 2400w 1200w 515 kw/p/year 2000w 2000w - - 1100w -- 150w 160w - - - - 100w 60w 50w 18w 65w 100w 150w 200-400w 210w | 57 cents per hour 57 cents per hour 29 cents per hour 57 cents per hour 29 cents per hour 32 cents per hour 51 cents per hour * Note; your 8kw heat pump is giving you 300% more heat for the same cost as a 2400w heater! Now thats Energy Efficient! 52 cents per day 29 cents per day 57 cents per hour 29 cents per hour 34 cents per day 30 cents per load 44 cents per load 38 cents per day 24 cents per day 13 cents per half hour 36 cents per roast 12 cents per batch 4 cents per hour 31 cents per 8 hours 4 cents per load 30 cents per load 6 cents per load 12 cents per load 10 cents per 4 hours 6 cents per 4 hours 5 cents per 4 hours 2 cents per 4 hours 6 cents per 4 hours 2 cents per hour 3 cents per hour 38-76 cents per 8 hrs 20 cents per 4 hours | 
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Heat Pumps and Energy Efficiency
Heat pumps use significantly less power to heat than traditional heating - this is why there has been such a growth of heat pumps for heating. So the amazing thing is . . . if you need 9Kw of heating, and electric heating is around 100% efficient, this mean you need 9kw of electric energy to product your 9kw of heat to warm your room. However - heat pumps transfer 3 to 4 times more heat than the electric energy used to run them. So for a heat pump to produce 9kw of heat, it will only use around 2.5 - 3KW of electrical energy. That's 300% more efficient!
Contact Air Con and talk to them about making your home more energy efficient with heating, ventilation and insulation.
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