Solar Power Basics
Solar power basics aren't rocket science. All you need for a solar-electric power system is:
Solar Panel
Solar Regulator
Storage Battery
At this stage, you will have a basic solar power system that produces 12 volts DC power. You can take this
electricity supply from the battery at any time to run low-voltage direct-current (DC) devices such as a 12 volt
lights, a car stereo, some small portable TV sets or a CB radio or a low-powered ham transceiver (2-way radio).
But running mains voltage appliances takes more power and the higher household AC voltages (alternating
current), normally 110 volts in the US and Japan, or 220-230 volts in Australia/NZ, the UK and Europe. So for that
you need an Inverter to take your 12 volts DC and boost it up to 110v or 230v AC for your household mains
appliances.
These mains-powered electrical appliances use more power than a small solar power system can handle. It will
work to run an electric drill for an hour or two or do a load in a small twin-tub washing machine, but that's about
it. A basic 12v solar power system is fine as an emergency lighting system, especially if you fit L.E.D. lights in
your home. They use drain less power from the battery than old-fashioned incandescent lamps, the kind with a
glowing tungsten filament.
To use more juice (electric current) than this solar power basic system supplies, you will need to upgrade to a
fairly heavyweight solar system... one that's got an array of solar panels, not just one or two. Then you will have
to have a large capacity deep-cycle storage battery (or bank of batteries) to collect and store that electric
power, and then you'll need a high-amperage solar regulator (to make sure the batteries don't get over-charged or
completely discharged.)
Finally, you will require a DC to AC Inverter that will take the stored 12
volt DC battery power and change it to the 110/230 AC mains power that your normal household appliances rely
upon.
Be sure to buy an inverter with the right voltage for your country, or you will damage your equipment and
possibly start a fire as well.
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