Hi there, well i've been interested in my own solar setup for a while as i always dread the electricity bill as many here would also. Anyways, earlier i bought a 180watt panel, but it didn't suit my needs, so i bought 2*250watt panels and it's "getting there" so, i have the panels mounted up into the sun, the cable i'm using is a 100metre roll of 240v 15A copper cable that literally fell off the back of a truck at a set of lights as it raced through the yellow/orange/amber.... I behind it stopped for the red and reaped the rewards picking up the roll to be used for many an electronic project so, the panels are 250watt, 24v wired in parallel to a charge controller then to a battery bank of salvaged car batteries. ( 2*12V truck batteries) and from there to a 24 to 240 Pure sine wave inverter Costs so far. Solar panels > $500+ shipping Y adapter for solar panels in parallel > $ 20 MC4 adapters > $10 Roll of cable > $free Charge controller > $30, but faulty going to buy a new one Inverter > $220 Batteries.... $120... So far 2* Trojan 160AH batteries $50 each 2*12v 4v4/truck batteries..... $10 each from the wreckers in "unknown condition" took a chance, one seems to be ok, the other is toast 1*12v 4x4 truck battery..... Found during council cleanup free with a very nervous ride with it on the bike home.... Tonight after i got home with the "free" battery i put it into the system and ran my 30" dell monitor from it drawing 250watts for approx 90 minutes before the low voltage alarm sounded on the inverter, which i suspected was because the battery i picked up didn't have much of a charge left in her before tossed onto the curb... I'll let the system charge tomorrow from the panels and see how we go. Panels should have a good charge after 8 hours of sunlight at 15 amps ( 500watts ) anyways, my setups design Click to view full size!