Sunday, January 17, 2010

Solar hot water




I have a Edwards solar hot water unit on my roof and I am very happy with it. There service and there equipment is as good as you will get .cheers Stewart

Monday, January 11, 2010

generate your own power

If you use a generator to do the washing it would cost about say 2 dollars and if you captured the heat for water it just might be economical instead of the grid power. Its getting close. If you get a generator from Strath Steam in South Australia and burn your junk mail and twigs from the local park and your tree wind fall in your yard it would be cheaper than the grid. Other places of fire wood is pallets and off cuts from saw mills.Try your council tip and take all there timber at a fixed price. You could run the generator from the humane waste if you put in a digestor,these are similar to a septic tank and the fuel is waste product which is also a greenhouse gas.Check it out for your self...

Saturday, January 9, 2010

TV comparison: LED v LCD v Plasma TVs

I did some comparisons of TVs and how much they cost to run and it looks like the most economical to run don't necessarily are not the cheapest to own and use in the long run as seen by this table below. Notice the price of electricity at 19cents/kilowatt.



Hours of TV per Day

5






Cost of Electricity
0.19
per kilowatt












Cost to run
Plasma TV (42 inch)
LCD tv (40 inch )

LED 40inch

0.4
kilowatts
0.2
kilowatts
0.14
kilowatts









Cost per day
0.38


0.19


0.133










7days/wk
2.66


1.33


0.931










Per year
138.32


69.16


48.412










I saved $400








Pay back period








5.78369
years















Purchase
$1,100


$1,250


$2,250











Payback period
is
2.168884
years

48.19742
years

Now if we increase the price of electricty to 38 cents, (as these 'motivated groups' have been telling us Bustards), then the cost to run changes slightly.


Hours of TV per Day

5






Cost of ELECtricty
0.38
per kilowatt












Cost to run
Plasma TV (42 inch)
LCD tv (40 inch )

LED 40inch

0.4
kilowatts
0.2
kilowatts
0.14
kilowatts









Cost per day
0.76


0.38


0.266










7days/wk
5.32


2.66


1.862










Per year
276.64


138.32


96.824










I saved $400








Pay back period








2.891845
years















Purchase
$1,100


$1,250


$2,250











Payback period
is
1.084442
years

24.09871
years

You be the judge.