Solar power supply Camping

The first thing doing is think about what you would be wanting to power via the sunlight, the complete house is great, but that's a tad too costly and not extremely transportable. Our house disappear completely camping several times through the year therefore I understood what I had in your mind. Some 12 volt energy conserving lightbulbs, a 15 inches TELEVISION with a free-to-air electronic receiver, some sort of radio/CD player is good also, a method to charge our mobile phones/sat navs and being in a position to inflate our air-beds, one which is 12 volts DC and another which can be 240V AC.

With of the in mind I began viewing prices of elements on websites including Ebay and Maplin as price is a very important aspect in designing a solar power system. Our Liquid Crystal Display and receiver draw 2.2 Amps DC on 12 volt, energy saving illumination attracts just below 1 Amp for a 12 watt bulb while the phone/GPS chargers draw almost no energy. Using the TV for say, 3 hours per day max would equal 6.6Ah consumed, burning useful for 4-5 hours every night would eat approximately 4Ah while all of the charging of transportable devices will be around 2Ah while pumps for air-beds wouldnt run for very long therefore possibly just eating around 1Ah, totalling 13.6Ah. Deep Cycle electric batteries really should not be discharged below 50percent of their rated ability, the smaller the discharge pattern, the longer the battery can last, for that reason a battery of 30Ah would suffice. The UK obtains an average of 6 hours of sunshine during summer time, which is the time of year we go camping and replacing 13.6Ah into a battery would just take a 50W solar power approximately 5 hours to recharge.

(Watts = Voltage x Amps)
(Average solar power voltage at maximum power = 17 Volts)
(50 watts/17 volts = 2.94 Amps)

It is simpler to draw energy from an electric battery rather than change, calling for usually 10per cent more capacity to recharge than the thing that was eaten, for that reason:
(14Ah / 2.94 Amps = 4.76 hours of direct sunlight)
In a real world circumstance this can never happen considering a lot of different factors eg;
Solar panel shading,
Overcast circumstances,
Battery heat,
Measurements of wiring,
Various other losses.

Therefore it's safer to make use of a larger electric battery bank, where energy can be utilized up continuously if climate the day shortly after are not appropriate efficient solar recharging to completely recharge battery pack.

Source: www.instructables.com
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