you may consider this idea:
you may know of uninteruptiple power supplies often used to prevent damage to electronics in case of power failure...
the idea could be:
solar panels & charger to keep the 12v lead/acid batteries (can be from a car) charged (sometimes the batteries are in series to produce 100v)
i'm using a 1.5 kw unit in my workshop (i can run a drill on it)
instead of rechargeing from the mains you recharge from the sun during daytime & get the 240v out of the inverter for your gadgets/ computers, you may consider to install a backup power network as many industries & hospitals have (that means 1 power point from mains & 1 marked powerpoint from the solar/ups system you can add a mains powered charger if the sun is in hiding for multiple days & the ups batteries run down if you buy a ups then of course you have the 240v charger allready built in...... the positive side is you never will be in the dark.....when your neighbours will be

cheers    James
SAD Technic
Video Productions, Electronic repairs
U3 / 6 Chalkley Pl
Bayswater WA 6053
+618 9370 5307,+618 6262 5707, 0414 421 132
http://www.iinet.net.au/~saddas
skype: barleeway


On 30/05/2007, at 16:37, Evers wrote:

Sorry to go off-topic here, although there is a computer-related issue at the end of all this.

I'm hoping WAMUG members may have some information and/or experience with installing and using individual residence renewable grid-connected power systems. I'm looking at putting the largest solar array I can afford on our roof (4 or 5 kW) to both supply our own electricity needs and sell back excess to the SW grid when the sun is shining, and purchase energy as needed when the sun is not out/at night.

We live in Albany (where despite myth the sun shines quite a lot) on a due north-facing hillside with over 100 square metres of roof area angled at 20 degrees, so the physical circumstances are positive. We already practice such energy reduction strategies as a 6-person household with a keen interest in electrical gadgetry comfortably support, but more work can be done on this. High energy demand activities such as cooking and hot water are supplied by gas (solar hot water is next on the upgrade list).

As some of you will know, a government rebate of 50% of the ex-GST cost of qualifying systems makes this worth considering (although don't do it just on economic grounds since because we don't pay the real impact cost of electricity you will grow very old and grey waiting to recoup all your outlay - we are doing this as a "walking the talk" greenhouse gas reduction i..................

Tony Evers

Community Mental Health Educator
"Supporting The Transition To Parenthood"


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