Polycrystalline Silicon Solar Panel 25W
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Polycrystalline Silicon Solar Panel 25W Supplier & Manufacturer from China
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Solar Panel and Wind Power?
- Insolation, okorder.com okorder.com/... that are 420x420x25 mm so each unit is about .764 m3. If you used these to cover 500 sq ft then you would need (46.45/.764=) 263 of these panels at a cost of ($09.95 x 263=) about $28,953 plus wiring, plus brackets, plus an inverter, plus batteries, plus a battery management system and any labor or your time. Best of luck with it.s
Generator for solar panels....?
- Well the sun don't shine at night does it. Nor much on cloudy days. You either need a generator or a whole lot of batteries. The batteries are a pain to maintain, they're expensive to install and they have to be replaced periodically. Generator's probably a decent alternative. I'm sure most people just stay on the grid for their backup. Even better if you live in an area where you're allowed to sell back excess capacity. If you're looking to spend this kind of money anyway you could look at a household fuel cell that runs on natural gas. Awesome technology, though if you buy the unit all prebuilt and ready to go it's going to run you like 50,000 bucks.s
Where can I get damaged solar panels?
- Used solar panels are usually a great bargain. Unless there is obvious major damage, you are most likely making a very safe and thrifty purchase--and if you can test the panels with a multimeter in full sunlight before purchase, you are almost guaranteed a functional panel. Nobody really knows what the lifespan of a solar panel is, since many of the very first panels are still in operation. I have three very old Arcos on my house, and they are still performing well. However, used panel prices haves
Making solar panels bad for the environment?
- Sure your proper, sunlight panels (photovoltics) could be used to make electricity for small electronics. Proper now sun cells are on many calculators, and even flashlight. However the trouble is the lenght of time the cells take to charge the gadget, verses the vigour demand. I don;t consider the scale of the panels, and the period of time needed to charge the device are sensible. One think i've been thinking is that all should have a photovoltaic panel to charge a battery. Then, use the battery to cost phone telephones, MP3 palyers. The panel and the battery would be in regards to the 8 x eleven inches, and could sit down in window, or on a dash board to get charged, then utilized in doorways over night to charge contraptions.s
how many solar panels needed for Heater and AC?
- Please excuse my bluntness, but you are not ready to ask these questions. This is a very complex issue. The how many question depends on what you expect of the system. Are you attempting to be off the grid? If so the system will have to supply all of your electrical needs, including those at night. You would need batteries. If you will be on the grid and want to supply all your electrical needs, your system will have to average the total daily usage. This will vary from one season to the next, so you will need to find out your annual usage. If you just want to reduce your electric bill, you need to pick the acceptable installation cost, and work with it to determine what it will buy In your shoes I would do some studying. Check out solar panels in the green search box above, and on the Internet. This will help you ask questions that are easier for us to answer.s
solar panel, dc light help?
- 3 w for 2 hours/night is 36 watt hours. You'll get about 500 watt hours/day from your panel on the average, which for a 2 volt battery is about 40 ampere hours. You can get an 80 amp-hour sealed gel cell battery to charge with this panel (with a suitable charge controller). You want to size your lights so the battery can provide three days of light without discharging it more than 50%, so that's abnout 600 watt-hours/3/36 = about 4 orf 5 lights. Cost for this system woulkd be over $500. The advantage of the self contained light is they use a lithium or nickel battery rather than a lead acid, so it can run totally dead without damage (unmlike a sealed lead-acid battery). That would be a far cheaper way to go. DKs
can solar power panels installed at home provide enough electricity to power house hold appliances?
- They can but it takes a lot of panels. A home averages about kw power. Peak power is higher (3-6 kw) but you can handle that with load leveling storage batteries. The total maximum solar flux is about kw/square yard (or square meter). Solar panels are around 0% efficient. Because the Sun travels across the sky, the overall power is about /2 this maximum but then ony during the day (/2 the time). Since you need to recharge your batteries for nighttime, etc. and battery charging is about 50% you lose abother factor of two. So, assuming the Sun shines every day, you can power your house on 80 square yards (700 square feet of solar panels). This is still very rare because the investment in solar panels, batteries, converters, etc. far outweighs what you spend for commercial electricity.s
Opinions on Solar Panels?
- I have a boat in a sunny place and four 80 watt panels. These will run my fridge Tv and a few LED's. I still have to run my engine for hot water and washing machine. My Batteries only last a few years and are a real pain. I go on the mains when I can to get the batteries topped up. The panels are ok if there is nothing else, they are not the answer to the future of energy supply. There is also the moral aspect of the feed in tariff. For the rich to load their electricity bill onto the less well off is not acceptable and those panels on the roof tell all your neighbors that you are doing it. That will show a greedy selfish attitude. If they are any good why don't the power companies buy them and save buying coal?s
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