Solar power?

Question

Hi I want to power a 5000 btu window airconditioner with a solar panel. I know very little about solar energy so i was wondering what size of a solar panel i would need . Would I need whats called an inverter or a power pack I have been looking at canadien tires solar panels. There cheapest is a 1.8 watt panel for $29.99. Thanx and i would like to spend as least mount of money as possible.

http://www.canadiantire.ca/browse/subcategory_landing.jsp?FOLDER%3C%3Efolder_id=1408474396672503&bmUID=1185235708278

The ac is proably about 5 amps sice a 10,000 btu ac is 10 amps.
the ac would end up being approximately 600 watts

the ac is 120 volts

i am assuming I need some type of battery to store the power

Answer 1

A 5000 BTU air conditioner, even a high efficiency one,
will draw about 750 W. running.
Figure at least 50% duty cycle, and you need 375 W./Hr. to run your A.C. unit for one hour.
The 1.8 W. panel you're looking at will gather maybe 10 W. Hr.s on a good day, and you'll need batteries and an inverer to convert the stored 12V. DC output of the panel to the 120V. AC you need to run your air conditioner.
In short, it's not a practical project.

Answer 2

I am running a 5000 BTU unit on solar. It takes about 575 watts to keep it running.

I am using a Prosine 2.0 inverter (2000 watt). I have 900 AH in batteries (8 Trojan T-105 6 volt 225 AH each). I use 810 watts in solar modules and an Outback MX60 charge controllers.

As long as the sun is bright and nothing else is turned on the system has no problem keeping the A/C unit running and holding a charge on the batteries.

However, the 810 watts in solar power is not enough to charge the battery bank and run the A/C unit at the same time. Meaning I am using everything the solar modules can provide and there is nothing left over.

You will find you will lose about 20% to 30% of the solar power from the solar modules heating up.. The charge controller requires power to run and the same for the inverter.

So you can bet on spending a minium of about $7,000 USD but should install about twice the wattage in modules as I have.

One more thing. I checked that website you posted.. All I can say is WOW! those are high prices. You would do a lot better buying from someone in the USA and paying freight and duties.

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Answer 4

not enough info.... how many watts or amps is the a/c?

if you know the watts...then you can figure out how many panels you need..... find out if the panels are rated to run at 100 % capacity .... or you may need to get extra panels and run it at 80% capacity...

if you know the amps...find out if the unit uses 240v or 120v

watts= volts x amps

Answer 5

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