about 5 hours 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 4 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
I wanted to like this product as I love helping any endeavor that decides to sell solar products. I’ve been trying to see where it’s made, no where on the unit itself or the literature does it say. I’m curious because it seems like it’s put together by some guy in his garage from off the shelf parts. Except for a few design weaknesses (it doesn’t close well and can dangerously pinch the power cable if one isn’t extremely careful), it does generate decent power.
If this, however, is made in some big factory in China -there are much better products available for the money (the Brunton 26 watt is an excellent unit).
Rating: 3 / 5
about 1 year ago
Not a bad panel. It has Siemens mono-crystalline cells(36)and tough glass. Case is plastic but fairly solid. Solar cells are mounted in EVA under glass. Accessory connectors are VERY well thought out with a charge controller, auto plugs, battery connectors, and a voltage step-down set-up for lower voltage appliances. Props are a not well-designed but I generally don’t use them anyway- this panel easily props up against just about anything and doesn’t slide. A little heavy at 9lb but solid construction. The 30 watt output will charge up just about any smaller appliance like a lap-top or AA charger- will also charge up a car battery with a good sunny day.
The review above is misguided in recommending the Coleman over this panel. The Coleman has cheaper amorphous cells with only a fraction of the power output- not able to charge a laptop and is also made in China. Reviewer doesn’t seem to have seen the 30 watt panel before commenting.
Rating: 4 / 5
about 1 year ago
Unfortunately, for the price you pay this product is a horrific waste of money. Made In China is the theme here and it shows throughout. Save your $$ and look at the Coleman CL1300 12 volt 20 watt Battery Solar Panel Charger which far surpasses this is value and quality. Trust me don’t spend your money on this!
Rating: 1 / 5
about 1 year ago
Following considerable research I purchased this panel about six months ago. I use it extensively in field research to power my laptop and radio data communications equipment (re-rad system) as well as run a 12V powered AA battery charger for LED lighting. With most of my field work in Nevada, Utah, and Arizona, where we get intense sun insolation, this panel has performed very much to my needs and expectations. My panel delivers output to rated specifications.
In operation, I run all of my equipment off of a Optima yellow top deep cycle battery. My laptop and data radio draw more than what this panel can deliver but since I run my laptop and radio only about 25% of the time, the panel keeps up nicely with my overall power demands. Recently I used the panel for a week at the Grand Canyon. I was impressed that it maintained my battery charge levels adequate to run my equipment even during a few lightly overcast days.
Regarding durability, I recently dropped the panel (while it was opened up) glass side down. Much to my relief, the panel survived the drop with no visible or electrical damage. As the previous commenter stated, the stands appear a little light weight but in use, they seem to be holding up well.
I give this 30W panel an excellent rating – it meets my needs quite well.
Rating: 5 / 5
about 1 year ago
I was a bit skeptical about these panels when I originally tested it, but in the end it performed excellent. I use it to charge my Duracell power pack 600hd and it charged fully in 4 to 5 hours. I noticed that you don’t need full sunlight for this panel to work but the more sunlight the higher output of course. Don’t plan on using this panel to power AC electronics its not designed for that. My inverter only powered up to about 15 watts ac power or one 13Watt CFL bulb. It also is good for charging cell phones or anything under 15 watts. On the negitive side I have not tried this product in wet weather and I don’t think that I will as it’s not water sealed very well, and I’ve noticed so far the stands that prop up the panel aren’t very robust and would not hold up in much wind.
Rating: 4 / 5