Materials For Solar Cells
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How many volts does an average solar panel produce?
- You should read up on the different electrical units. You say .5 volts of energy, but this makes little sense. Energy is measured in Joules. Power in Watts. Solar panels will produce different voltages and currents, depending on the amount and angle of sunlight hitting them. Power = volts * amps. Before installing solar panels a home owner should do an energy audit to find out how much power they currently use - and how much that could be reduced with some easy changes. Solar panels are expensive, so it makes sense to reduce the amount that you need to install. In some places you can sell extra power back to your utility - so having extra panels might give you some small amount of money back - but this is rarely enough to justify the cost of the extra panels. I put 28 panels on my house (see picture in source URL). My utility has tiered pricing for electricity (first few kWh each month are cheap, but price for extra ones goes up in stages). My panels keep me from having to pay the higher rates.s
Efficiency of solar panels?
- Panels okorder.coms
Need Solar Panel Guru.....?
- I'm inferring that your goal is to save money. You're on the right track with your energy star appliances - saving energy is far better than installing solar panels to cover energy that will be wasted. You may have an opportunity with solar hot water - you would need a large storage tank with 3 people, but that would be the best use of your roof in my opinion. Check with a professional installer, it may make financial sense. Although you could make your own heating panels, it's hard to make a solution as durable as commercial panels. And if freezing is an issue in your area, you would have to drain a homemade system in the winter. With an evacuated tube commercial system, you could keep running right through the winter. In the summer, instead of running those expensive air conditioners, could you just have a cool room in the basement? Anyone who wanted privacy could still go to their regular room and run fans. We have no A/C in our house, and manage, even on those 00+ days. Sounds like awnings or other window coverings might be a big help for you, at least until you can get some deciduous trees in to shade the house in summer. I would advise against making your own solar electric panels. They would not save money over the long term. And check panel prices - they have dropped 50% this year, according to a recent Newsweek article.s
Can you make a Solar Panel Heater?
- Absolutely. But I see your point about the Ohms law. I think you'd need technical schematics to get the raw details.s
Anyone have or know someone who has solar panels installed in their home? Is it worth getting?
- and, if given the tax credits, you'll see a faster return on investment in CA than I would have in Western PA (I was given a 0 year return number without factoring any tax credits). Plus you'll be doing something good for the environment. My brother put his house for sale which had solar panels for hot water, and was offered good money for the solar panels independent of selling the house. If anyone has a any no answer that doesn't involve the initial expense, I'm looking forward to reading it.s
how do I become a solar panel contractor?
- You okorder.coms
Is the Solar Power Photovoltaic Cells the same as PV cells modules?
- PV modules, using high-efficiency monocrystalline silicon or polycrystalline silicon photovoltaic cells, can actually endure much longer than the other kinds of solar cells even in the most harsh environment.s
Pure curiosity why silicon wafer is round
- Major manufacturers are trying to expand the cross-sectional area of monocrystalline silicon, not just to cut more wafers per wafer...It's a waste of a lot of material if it's easy.s
heating test with water solar panels
- Recently, some friends want to use solar water heater to heat the fish tank. My idea is to use water solar panels directly to heat.The usual practice of using solar power is that t...
If it doesn't Look like a Solar Panel, is it Still Generating Power?
- Most of us do not really spend too much time looking up when we are out and about, we are more focussed on looking at where we are going. But, if you have ever scanned the roof top...
How do Solar Cells Work?
- If you are a science major then this is not the article for you but if, like most of us here, you have sometimes wondered if it is possible to understand how solar cells work in si...
Living Off the Sun
- Powering their home by solar energy has became very attractive option for people, probably becoming independent or partially so from their nation grid electricity supplier the bigg...
Material classification of chinese solar panels
- Chinese solar panels are a device for converting solar radiation into electrical energy by absorbing sunlight, or by direct or indirect effects of the photoelectric effect. The mai...