30
June
2010
June
2010
I want to buy a solar panel and plug a portable air conditioner to it for my bedroom?
Ok so I have been thinking of buying a solar panel, and hooking up a portable window air conditioner to it for my bedroom. I figure this would keep my bedroom cold, and I could bump up the AC to cut down on my electric bill. What kind of wattage would I need from the solar panel, to cover the electricity needs for the portable window unit?
I would say this is a great idea, definitely consider going with a decent sized air conditioner, however, it all depends on the size of the space. A bedroom that is 7ft by 8ft is a big difference from a bedroom that is 14ft by 10ft. So really consider how large the room is and obviously the larger the room, the larger the wattage.
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References :
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It’s not as easy as that. Solar panels output DC, same as batteries. Your A/C uses AC, like everything you plug into the wall sockets. You need an inverter to convert the DC to AC, and unless you connect the panels to the electric grid, you need batteries to store the electricity.
Also, you picked the highest power draw appliance in your house. If you figure a room A/C draws 1000W, and you run it for 8 hours, that’s 8 kilowatt hours (kwh) a day, 240 kwh a month. Depending on where you live, you would need about 2000W of panels to generate that. Just the equipment would cost over $10,000. You can see an offgrid kit about the right size here, http://www.altestore.com/store/Kits-and-Package-Deals/Off-Grid-Residential-Systems/Off-Grid-Residential-Package-205KW/p7515/.
What might be a better solution is to just install a small grid-tied system that is connected to the electric grid and offset some of the electricity that you are using for the A/C. That way, you’d be generating and using it all year, not just during cooling season. You would qualify for the federal tax credit that gives you back 30% of installed cost, as well as many states have local rebates. http://www.altestore.com/store/Kits-and-Package-Deals/Grid-Tied-Systems/AltE-Grid-Tied-Package-System-A-975w/p6629/
References :
AltE Store - http://www.altestore.com/store
Rebates and Incentives - http://www.dsireusa.org/
This sounds like a wonderful idea. I definitely suggest going all for it.
I would say you would need a pretty high water, but it really depends on what size AC unit you are using in your bedroom.
References :
http://www.coolernow.com/
I would say this is a great idea, definitely consider going with a decent sized air conditioner, however, it all depends on the size of the space. A bedroom that is 7ft by 8ft is a big difference from a bedroom that is 14ft by 10ft. So really consider how large the room is and obviously the larger the room, the larger the wattage.
References :
Just check out Cooler Now
http://www.coolernow.com/
dkwr14:
first of all folks it ain’t as simple as implied if it were everyone would be doing it. Second it’s not that cheap to do either. It’s to lengthy to go into here so I’ll just hit the high points. First solar panels are not all made alike but a cheap solar panel around a $100.00 would be a start. Then a voltage regulator to regulate the voltage to charge the bank of batteries you’ll need. Not one battery but 6 or 8 batteries. One battery won’t give you enough electricity to run your small AC for more than a couple of minutes. Then you’ll need an inverter big enough to run your small AC unit, Volts times Amps will give you watts. Look at the A/Cond. electrical requirements ( how many Amps it draws ) to see how big of an inverter you’ll need. Then wire it all together, start-up cost, battery maintenance and solar panel will be cost prohibitive. the idea of running a small AC unit with a solar pane sounds like a good idea on paper and there’s more involved this is just the highlights.
References :