Home › Forums › SUSTAINABLE CONSTRUCTION, ENERGY and WATER CONSERVATION › Sustainable Energy & Energy Conservation › Solar – is it worth it?
May 29, 2007 at 3:09 am #302738MumchookMember
Sprout wrote: I thought a stand alone system would cost around three times this amount.
It depends on what you can afford to start off with and ultimately what you want to have power for.
We wouldn’t need a system the size we have if we were alone and didn’t have kids and didn’t have a business to run, for instance.
By the way, I cook with LPG gas and heat the home with a wood fire.
🙂June 2, 2007 at 7:33 am #302739grumpy3Member
I guess it depends where and how you get your solar outfits. I found a low pressure hot water system with two large panels for $250 which I installed myself. I also was given a gas hot water heater by the father inlaw which I have not fitted as of yet. We have a slow combustion wood stove with a hot water system that we use all winter so that takes care of hot water during the cold times.
Some years back I aquired 8 / 40 watt solar panels and I got a dick smith 1000 watt inverter to run the basics. At present I am going to buy second hand fork lift batteries 2 Volt 500 AMP. At $70 each and having to pass a 80% load test I think I will give them a try. Even if I get a few years out of them that will be fine. I am also thinking of going with a wind generator as well. A friend down the road bought one of those $500 dick smith ones several months back and it is still going great. Puts out good power even in a light breeze.
Grumpy3June 3, 2007 at 12:16 am #302740GgangMember
for WA members you can get 50% rebate for grid feed installation in some country shires
seeJune 3, 2007 at 12:19 am #302741LeeMember
the new earth garden has some information. If that is any help.April 27, 2011 at 6:51 pm #302742solarexpertMember
Sunlight is free, but harnessing that radiant heat energy and converting it into usable solar power costs a pretty penny.
Materials handling and manufacturing, production efficiency and installation all drive up the price of photovoltaic solar array systems, those sun-catching panels installed on roofs. Once in place, the amount of sunlight and array performance will determine how much of a return on investment solar power systems generate.
But while the up-front expenses starting around $5,000 for at-home installation are a big, expensive pill for some people to swallow, the long-term benefits of photovoltaic solar power systems are worthwhile.
Solar power prices have actually fallen significantly in recent years,thanks to developments on the production end as well as component design, which has edged away from customization and moved toward standardized solar power kits.April 27, 2011 at 7:15 pm #302743porgeyMember
In theory PV cells on your house are great. However, you have to be smart about when you use your electricity the most.
If you can time your big electricity usage during the day when the cells are pumping out lots of spark then that is a big help. Electricity suppliers have to recoup large costs which have to be met somehow so look carefully at your usage costs through out the 24 hour cycle.
They may charge very little during the day when you dont want/need there power but can charge a small fortune at night when your cells are producing less/none. My brother has PV cells on his roof and has put a time clock on his washing machine, dishwasher, pool pump etc so the heavy appliances go on during the day when spark is cheap and not at night when it was more convenient to turn it on as the cost is high.
I cant see how electricity suppliers like home generation as its a direct competition to them and they need to maintain expensive infrastructure.
So to answer your question, I do think PV cells are worth it but be smart about your usage.
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