Q:how to build a solar panel

Search Yahoo Answers or the internet first, this question is common. It is possible to build a solar thermal panel, to heat either water or air. You can just search YouTube to see how people did it. Try searching solar water heater. If you build a photovoltaic (solar electric) panel on your own, it will only be good for demonstration purposes. The homemade type I've seen produces only microamps of current - not even enough to run an iPod. Be wary of sites advertise you can make your own panel for less than $200 (or some figure), and try to sell you the plans. This is the same information that is posed on other sites for free.

Q:Can solar panels be used in space?

Yes, solar panels can be used in space. In fact, they are commonly used to power satellites and spacecraft as they can efficiently convert sunlight into electricity even in the absence of an atmosphere.

Q:How do solar panels affect the roof's lifespan?

Solar panels can actually help extend the lifespan of a roof. They act as a protective layer, shielding the roof from harmful elements such as UV rays, rain, and snow. Additionally, solar panels can reduce the temperature of the roof, which can help prevent heat-related damage.

Q:What is the impact of dust and dirt on solar panels' efficiency?

Dust and dirt on solar panels can significantly reduce their efficiency. When these particles accumulate on the surface of the panels, they block sunlight from reaching the photovoltaic cells, resulting in decreased energy production. Regular cleaning and maintenance of solar panels are crucial to ensure optimal performance and maximize their power output.

Q:Can solar panels be installed in areas with high levels of saltwater exposure?

Yes, solar panels can be installed in areas with high levels of saltwater exposure. However, it is important to choose solar panels that are specifically designed to withstand such conditions. These panels are typically made with corrosion-resistant materials and undergo rigorous testing to ensure durability in marine environments. Regular maintenance and cleaning may also be required to prevent salt buildup and optimize performance.

Q:I've been reading up on Solar panels because I think in the long run this would be beneficial in the long run. My Dad had looked into it before passing and had said it was too expensive. How much does it range for getting them placed on the roof and how exactly does that work? I think I remember being told that PGE has incentives and could possibly even end up paying you for having it? What does having panels cover? I know electricity but does it also heat things up? Sorry I'm kinda dee dee dee on this lol. Any and all information would be greatly appreciated. If anyone has solar panels can I get your experiences with them? Thanks!!

Would that be Portland General Electric? I used to live in Beaverton. I think technology has not progressed enough for solar electric panels to be a good deal in that area. Too many clouds. If you were over in Eastern Oregon, that would be clearer. If you meant Pacific Gas and Electric, that's another story. It's a good deal in most places in California. PGE only gives a trivial rebate on panels now, but that's ok.

Q:Can solar panels be installed on a condominium or apartment building?

Yes, solar panels can be installed on a condominium or apartment building. However, the feasibility and process may vary depending on factors such as building ownership, structural integrity, and local regulations. It is important to consult with professionals and obtain necessary permissions before proceeding with the installation.

Q:Is there a small solar panel system that I can put in my bedroom window and charge my phone and run an alarm clock off of? Or one I can run a microwave off of?

tell me at roughly $500 each, just how many panels would you like to buy? ;-)

Q:I have several 6v 4.5a sealed lead acid batteries. I would like to hook one of them up to a solar panel and have it stay charged from the solar panel all the time, but not overcharged. Is there a simple way to do this with an IC or something? I am only a beginner with circuits so I want it to be something very easy to make. Basically, I want it to stay charged all the time so it's available if I need it for a power out or something.Thanks.

Yes, you can purchase a solar photovoltaic array to keep your batteries charged. You will need a Photovoltaic Cell Panel that produces 27 + watts (6volts x 4.5 amps = 27 watts) at 6 volts of electricity, a Charge Controller that allows only 4.5 amps of power through to the battery and will reduce the amps as the battery nears full charge and shut off the Panel when the battery is fully charged, and a 6v. Battery. Figure you will need a photovoltaic panel capable of producing a minimum of 27 watts if you are going to charge a completely dead 6 v. battery in one day. (with a clear sky). The way the system works is the sunlight strikes the cells on the panel and releases the excess electrons in the cells, they travel along central wires to your battery and charge the battery. When the sun sets, the procedure is reversed and the electrons flow backwards from the battery, into the photovoltaic cells. That is where the Charge Controller is needed. It acts a one way gate and lets the electrons go into the battery, but won't let them go backwards to the Panel. Just set your panel in the sun at the optimum angle for the season and your latitude on earth, connect the charge controller and then the battery, and it will keep your battery charged. Don't waste your money on the small wattage solar photovoltaic systems that claim to keep your battery charged. They simply can't do it unless your battery is in like new condition and is fully charged when they are hooked up. If you battery is a few months old, the small wattage photovoltaic systems can't keep up with the loss of power from sulfation inside the battery.

Q:i was told that by making a solar panel they cause more pollution than they will end up getting rid of. Is that true?

Long ago, say, in the 960's, it was true that solar cells did not return the energy of their manufacture. In those days, cells were 4% efficient, and made with more material and a less efficient process. Unfortunately, the myth persists that this is still the case today from unaccredited sources. Kudos to Michael for the nrel link. That study was actually done over 0 years ago, and since then, technology has advanced even further. Manufacturers have been able to reduce the thickness of cells in general in the last decade, to use less crystalline silicon. Also manufacturers such as Suntech with their pluto process are now able to use a lower grade of silicon, that takes less energy to refine. The result is that the energy payback time is even shorter today than estimated in the linked paper.