Browse Forums General Discussion 1 Oct 27, 2008 1:14 am Hi all,
Just got a letter from my pals @ TRU Energy to let me know that my bill is going up. My new rates are: Peak Rates Quaterly - 18.6560 c/kWh (incl GST) Off-Peak Rates Quaterly - 11.6820 c/kWh (incl GST) Now if I had a device that used 200 Watts per hour ... how much is it costing me? Or if I had a device that had a usage of 2 kW/h would that be $0.37cents per hour? How does this compare to others $$ per cent rating? Does anyone really care? Re: Your Electricity - Watts vs KWh - what does it all mean?? 2Oct 27, 2008 7:06 am Electricity bills....right up their with the "rosetta stone" for interpretation...hopefully this helps.
I'm about to have a barny with TRUEnergy because I suppose to be on the "same plan" as the last place but it's costing me heaps more than the old place evven taking into account energy price increases. Calcutalor...all you need to know http://www.citytrf.net/costs_calculator.htm Explanation...more than you want to know Electric usage is measured in kilowatt-hours. 1 watt-hour is the equivalent of 1 watt of power used for 1 hour. 1 kilowatt-hour is the equivalent of 1000 watt-hours used for 1 hour. Three values are needed to calculate the cost to use an appliance: • The power rating or wattage of the appliance. This is found on the appliance e.g. 50W or 1800W. • The time the appliance is switched on in hours (or minutes ÷ 60) • The cost per KWh. 1. Appliance wattage ÷ 1000 = kilowatts (kW) 2. Kilowatts × (time appliance is switched on in hours) = kilowatt hours (kWh) 3. Kilowatt hours x cost per KWh is what you pay for that appliance to run. Example 1: 100W light bulb on for 24 hours where the cost per KWh for electricity = 6.26¢ (.0626) (100 ÷ 1000) × 24 = 2.4 kWh used 2.4 kWh × 6.26¢ =15¢ This means that it costs 15¢ to use a 100 Watt light bulb for 24 hours. Example 2: Equivalent energy saving CFL light bulb (20W) for 24 hours (20 ÷ 1000) × 24 = 0.48 kWh used 0.48 kWh × 6.26¢ = 3.0¢ This means that it costs just 3.0¢ to use an equivalent low energy light bulb for 24 hours. PS..Yeah...yeah...I'm sure I'll get geek taunts but ask a geek a question and you usually get a an answer...inchorent but an answer. mmm....donuts Homer Simpson 1956- Links: Site Costs Ready Reckoner | H1 Addiction Medical Advice | Château TDL: The Backyard Re: Your Electricity - Watts vs KWh - what does it all mean? 3Oct 27, 2008 7:40 am mattwalker Hi all, Just got a letter from my pals @ TRU Energy to let me know that my bill is going up. My new rates are: Peak Rates Quaterly - 18.6560 c/kWh (incl GST) Off-Peak Rates Quaterly - 11.6820 c/kWh (incl GST) Now if I had a device that used 200 Watts per hour ... how much is it costing me? Or if I had a device that had a usage of 2 kW/h would that be $0.37cents per hour? How does this compare to others $$ per cent rating? Does anyone really care? Matt, Devices use watts (not watts per hour). So a 200 W device will cost you 3.7 cents per hour to run and a 2 kW device will cost you 37.3 cents per hour to run. Cheers, Casa Demolition August 2009, Construction Started September 2009, Completed December 2010 Re: Your Electricity - Watts vs KWh - what does it all mean?? 4Oct 31, 2008 3:28 pm I don't know much about anything, but the other day I got my first bill using green energy and in my new apartment.
This bill was for 45 days when we were actually living here, and apparently we used 6.2 kw. The last bill at our old place was for 90 days and we were there for 83 of those, and it was 12.8 kw. So...we're doing better, eh? lol The bill last year at the same time was 14.9 kw. Woo! One concern I have is the dishwasher. It has a water rating of 1.5 stars and energy rating of 2.5 stars. TERRRRRIBLE!! How the hell did I become a senior member!? I know nothing! What's watt 5Oct 31, 2008 3:55 pm Hi all
What's watt - where do they go? Windows may as well be plugged into your power point going by the amount of watts they use. In energy terms, compared to bricks and mortar, windows are just holes in the wall which allow heat to move via conduction from the hot side to the cold side. The amount of heat they allow through can be predicted in a measure called window U value (or U factor). The U value of a window measures energy loss in watts per square metre per degree Celsius passing through the window, which of course shows up in your power or gas bill just like the watts of your electric kettle or iron! If a house was perfectly insulated it would require zero heating or cooling to maintain temperature equilibrium, so what we pay for in gas and electricity for heating and cooling is directly related to how much energy leaks into or out of our homes. The better a home is insulated, the less energy we need to keep our home at a comfortable temperature. Windows play the biggest part in the cost of that energy, like a leaky boat whose hull is watertight apart from a few holes - we must bail the water at a rate that is equal to the rate of the leak or the boat will sink; so too with windows and doors, we must replenish the heat gain or loss from our windows by turning on the heating or cooling to remain comfortable. Since a window’s U value is a measure of the window’s ability to conduct heat, then the lower the U value the higher its insulation or heat stopping properties. For U value, lowest is best. If we compare two windows, one with a U value of 3 and one with a U value of 2.7, then the window with the U value of 2.7 stops 10% more heat from being conducted through the whole window and requires 10% less energy to maintain the comfort level compared to the window with the U value of 3, that is 10% less in your heating or cooling bill for that window (looking only at windows in relation to energy). Everyone knows that generally double glazing is a better insulator than single glazing. But how much better depends upon design and the type of glazing. Poorly designed double glazed windows can perform worse than well designed single glazed windows where energy is concerned and double glazed windows vary enormously in energy terms. Heating & cooling can be half your energy bill. On a cold (or Hot!!) day, poorly designed single glazed windows (U value say 5 or more) can draw around 6 kilowatts per hour of energy to maintain comfort for an average 2 storey home. Choose windows wisely!! Windows are plugged in and switched on 24 hours a day - not like the dishwasher, and you can't switch them off!!. "ECOECO" At 'EcoEco', we design windows, we design the best windows, we do it for you, so that when you’re happy we are happy. Tel. 1800 326 326 Re: Your Electricity - Watts vs KWh - what does it all mean?? 7Nov 01, 2008 8:07 am Thanks Yak_Chat... too much confusion out there - "ECOECO" At 'EcoEco', we design windows, we design the best windows, we do it for you, so that when you’re happy we are happy. Tel. 1800 326 326 A question. Im in Queensland and building a new home. We managed to reach practical completion 6 weeks ago but we haven't heard any date for handover yet. Who should we… 0 5800 This is one of the reasons I decided to go overseas for my double glazed windows. As the builder indicated, he's worked on many upmarket builds, these were the most well… 13 19080 I've just built 3 stairs off a landing out the back and been told by the private certifier I need hand rails sorry tried to attach a pic but couldn't mine don't have sides… 5 5705 |