about 1 hour ago - No comments
Question by Morten H: Can someone please tell me some good and bad things about saving solar energy in water or stone from one day t? Can someone please tell me some good and bad things about saving solar energy in water or stone from one day to another. —————————————— Answer by Nthere’s nothing bad
about 1 day ago - No comments
about 2 days ago - 3 comments
Question by Mitch: How much current can you make with a solar panel? I would like to put solar panels on my vehicle to run a hydrogen booster, the problem is that a hydrogen booster requires 25 to 30 amps to be efficient. Is it possible to create this many amps at 12 volts using
about 3 days ago - No comments
Question by : Solar Energy accounts for how much of our energy consumption? I need to know out of all the electricity we use, how much of it comes from solar energy? source please —————————————— Answer by Brian DanthySince heat is what energy through inbody is released, about 25 – 30% of it comes for
about 5 days ago - 1 comment
Question by Conrad: Charging a battery with a solar panel? I have a boat with an automatic bilge pump, and I want to hook up my battery ( 12 volt deep cycle marine) to a solar panel so that it maintains its charge when the bilge pump kicks on, the bilge pump will only kick
about 6 days ago - 3 comments
Question by Scatterbrained: What would a 60 watt solar panel power? How many watts for a small home? What would be helpful is some chart or diagram that would put this in perspective for me. I thought it would be neat to save up for solar panels for my home and take the load off
about 1 week ago - No comments
Question by Ace: Are solar and wind energy systems suitable only when the sun is shining and the wind blowing? Also please refer me to any professional journals and popular literature sources that can help with this question? —————————————— Answer by SadieThere are some options. For either, you can tie them to the grid, and
about 1 week ago - No comments
Question by Top H: Can a solar panel company sell carbon credits? I am looking to rent roof space and install my own solar panels to produce power. Of course the power will be sold to the local power company, but I am wondering if I can sell Carbon Credits to local companies as well.
about 1 week ago - No comments
Question by : Where can i find journal articles on solar energy? Im researching on the cost-effectiveness & efficiency of using solar energy in residential homes.Its important & tks in advance. —————————————— Answer by 88Google is always an option. But here is one. http://jrse.aip.org/ Answer by Trent Ryangoogle scholar Answer by MariaIf you want QUALITY
about 1 week ago - No comments
Question by : How can I build my own solar panel for electricity? I need to know where I can buy the parts or find them as scrap to make my own solar panels. Is there a cheap way of buying the panels or can I make them myself. —————————————— Answer by Stephen MUnless you
about 1 year ago
Review by M. Wagner for Sunforce 50032 15 Watt Solar Battery Charger
Rating:
I put this on top of a metal storage container with 3 LED lights inside. I put in a controller and a 12 volt deep cyle battery, and I have lots of light.
Just for grins I put in a 400 watt inverter in case anyone wanted to run a battery charger for a DeWalt cordless drill. Great job site problem solver.
about 1 year ago
Review by R. Gruber for Sunforce 50032 15 Watt Solar Battery Charger
Rating:
It was simple to install on top of my RV. I was able to put a cover over the panel and keep getting the sunlight to charge the batteries. It charges even through glass on the inside of the RV.
about 1 year ago
Review by Thomas H. Lawler for Sunforce 50032 15 Watt Solar Battery Charger
Rating:
I got a set of 5 panels for $65 each when I saw them on sale. I’ve had no problems (with arriving broken or such) & I’m pretty sure they put out the energy I expect when the sun’s on them. (Update 7-08, see my review under the northern tool panels for my performance test results of the panels I have).
But after I got these I ran some math on the cost for them and their output versus the utility power rate. With power billed in kiloWatt/hours (or 1,000 watts at a time) these panels can suposedly produce 15 watts (~1/60 of a kiloWatt). Assuming they give me the full 15 watts output for ~8 hours per day constantly, it’ll take 15+ years for them to pay for themselves. Since cloudy days & such reduce the output & benefit, it will likely make it take a lot longer. Whether of not the plastic construction will hold up that long I wonder about too, so I’m not sure it was really worth it now. How to fully utilize the power I get & not just be keeping a battery fully charged is another thing I’m not sure of (I don’t want to leave something running that drains the battery overnight, but not running anything means I get nothing out of it).
So if you want to power something in a remote location that can run off of minimal power or has a high draw but for only a minimal time, this may be the way to go. Just remember that the panels only give you power during sunshine and you need enough of them to be able to recharge the battery they feed during your daylight hours. The set of 4 panels & more for ~$300 sounds like a better deal than ~$100 each (unless you see these on sale). Also being able to use them with existing things (like in a RV that runs off of 12V power anyway) can make it easier to utilize them as well.
But if you are thinking buying these will help you save on your energy bill at home, you might want to think again. To produce 1 kilowatt of solar power will cost you ~$5,000 up front (and that’s almost regardless of who’s name brand you choose). To collect up the DC power they produce and convert that into household power requires a car size battery & a power inverter as additional costs. I saw a TV show where a guy in California made himself independent of utilities with a farm of panels & other equipment needed, but it cost him over $500,000 to put it all together. If you can afford such and like the comfort of being energy independent, go for it! Otherwise a utility bill as little as $0.10 for each kilowatt hour seems more cost effective to me.
about 1 year ago
Review by David Milunic for Sunforce 50032 15 Watt Solar Battery Charger
Rating:
It arrived quickly and in perfect condition. It produced the rated open circuit voltage and short circuit current in full sunshine per the specifications. It was a good buy, very good for maintaining a battery, but you must use a charge controller. You need several along with a charge controller if you intend to produce enough power for useful work. I use 5 (similar) together with a 100 amp/hour marine battery to power my laptop. I’d like to add a few more! Great for the hobbyist who wants to play with solar without a large expense, also useful for low power off grid applications. It has been outside during several large rainstorms and had no problems.
about 1 year ago
Review by L. Leung for Sunforce 50032 15 Watt Solar Battery Charger
Rating:
Got this panel for under $70 bucks. The panel came in a very securly packed package. It generate more than it advertised. I measured over 20 watts while it’s in direct sun light. One thing that’s should improve is that the core could be longer.