Archive for solar panels

Emergency Solar Lamp with Radio GS-11R

This unique model would light up your way at home or outdoors in an emergency or camping with the power of the sun. Enjoy the outdoors without worry about replacing batteries or changing the propane tank. Our solar lamp would recharge each and every day by the sun and be ready to light up your night. Our solar lamp is durable and technology advanced including extra features like upper torch for reading, radio and PL lamp with light output of up to 3.5 hours. It even comes with an AC/DC adapter that will charge the rechargeable battery at home at night. The built-in solar panel is adjustable for several degrees options to face the sun and charges the lantern during the day anywhere there’s sun. 7 x 3 x 11″ High Adjustable Solar panel AM/FM Radio AC/DC power adapter included (for charging at home with no sun) PL lamp plus Spot light Portable handle designed for outdoor use Charging indicator

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What are the drawbacks to using wind turbines or solar panels for providing all power to a home?

A. The wind and sun are not constant, so there would be times when no electricity would be generated.
B. The wind and sun are constant, so there would be plenty of electricity for the home.
C. Wind and solar power are inefficient and too expensive to use and maintain.
D. Wind and solar power are efficient, but they are not able to produce enough electricity for a single home.

again trying to help..again thnx 4 the previous………
nothing else…………but A.
NO COMMENTS ON THE OTHER OPTIONS….
except these there is another drawback…….its when your brother breaks the solar panel after quarrel with you……then no electricity will b produced………….hope this funny answer u liked……..its just to make yahhooooooooooo answer FUNNNNN…………

I am looking at installing solar panels and other associated energy efficient products in the community in Perth. I am trying to find out what the course is that I need to be able to set up grid connect solar panels. I am aware that an electrician will have to do the connection to the grid, but have herd that there is a 3 month course in Brisbane. Just wondering if there is the same thing in Perth.

Thanks

I’m not really sure about a course that you need to install solar panels on houses. i’m doing certificate II in electrotechnology and I know that there is also a certificate IV in electrotechnology where you learn about renewable energy so i searched Google for a TAFE in Perth that offers this sort of course and found this: http://psc.central.tafe.wa.edu.au/Search/List.aspx?Keyword=renewable%20energy&CourseNumber=&CourseType=&DeliveryLocation=&InternationalProduct=&Status=&StudyMode=&AccreditationWeeks=&MOUP=&MOUC=&ASCO=&ANZSIC=&ReviewDate=&searchBy=adv&currentlyThisSemester=&availableNextSemester=&courseNationalNumber=

I hope this helps! (I’m actually thinking of installing solar panels when I’m older too)

I was trying to figure out how solar panels work today and I found that electrons get displaced in 2 layers of a solar panel by photons coming from the sun to create power. If the electrons come from the solar panel and go into the electrical grid, how are they replaced in the solar panel? Wouldn’t the solar panel eventually lose all of its electrons and stop working? Electrons have mass, so wouldn’t the solar panel slowly deteriorate?

I think solar energy is awesome and I really want to know how it works. Any help in enlightening me on this subject would great, thanks!

It’s because the photovolcaics are closed-loop systems. A photon will come in and basically knock an electron across what is called a "junction" and create current, but it is "caught" (really simplified version) on the other side of the junction and kind of "bounced back" into place.

It’s like Formula 1 racing or NASCAR. The car will be sitting in the Pit, just waiting to go, then will tear out, run a few laps until it requires more fuel, then stops in the Pit again, gets refueled, and just waits for the signal from the Pit Boss to get going again.

The limiting factor on solar cells isn’t the cell itself, as in the electrical circuits and semiconductors, but rather the very slow degradation of the (usually plastic) that holds each small cell in place, so that it can create a useful photovoltaic cell. Since modern plastics can be treated with UV coatings to prevent degradation, and are practically immune to water, the only thing that can really hurt them is somebody whacks it with a hammer or drops it while installing it on the roof.

They’re excellent. The south face of my roof is sufficient, along with a small vertical-axis wind turbine, to generate more power than I need, and it actually gets sold back to Sempra Energy/SDG&E.

I want to build a house and put solar panels on my roof. What angle do I need to build my roof at so I can just place solar panels flat on my roof? Which direction does the solar panels need to be facing?

This depends on your latitude and where you are. If you’re in the northern hemisphere, it faces south, with a tilt direction at the sun with respect to the average tilt of the earth. If you’re in the southern hemisphere, the solar panels (both photovoltaic and solar thermal) face north. If you’re on the equator, then they may lie flat on your roof. In US at a latitude of 40 degrees, you may want a tilt of about 20 degrees (because of change of seasons). You can alway angel the panels easier than modifying an existing roof. Be sure NOT to shade any part of photovoltaic panels at ant time.

Ventamatic Solar-Powered Ventilating Fan with Panel - Roof- Mounted Ventilator, Model# VX1000SOLARROOF

Harness the energy of the sun to keep your attic cool and well-ventilated. Multi-crystal solar panel is installed on your roof to convert the natural energy provided by the sun. The solar p…

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I want to do a science project where I create my own solar panels out of different materials to see which one will produce the greatest amount of energy. Is this a realistic topic if it has to be done before Thanksgiving? If so, how do I make the solar panels? How do I measure/convert the energy? Please help!

Your best bet is making solar water heating panels. You could make them out of copper, PVC, and garden hose, and compare which gets hotter. Check out this site for ideas. http://www.builditsolar.com/

Avoid the scams out there saying you can build your own panel for $200 to power your whole house. You can’t. There are some free instructions on the You Build It site that are legit.

I know the cost of how much solar panels are but what is the price to install them?If I were to install about 10 on a building?

Hello! That is great that you are thinking of installing solar panels. Just to be clear, I believe you are talking about solar panels to produce electricity, aka photovoltaic panels. As mentioned in previous answers, the cost of installation will vary depending upon your location. But a good estimate is $7-$10 per Watt for a grid-tied, battery-less system.

So if you installed 10-200 Watt solar panels, that would be 2000 Watts (2 kW) and cost approximately $14,000-$20,000 before rebates and incentives. Be sure to check for local rebate programs and read about the 30% federal tax credit here:
www.dsireusa.org

Good luck!
Kristen
http://newenglandbreeze.com/

Crown Solar Shed Light GS-33K

Solar lighting for all structures. Light up your shed, greenhouse, storage units, garage and more with this easy to install solar charged light. No electrical wires to install, just secure it to the roof or side wall and let the sun do the rest. Our Crown Solar Shed Light is completely solar proof and can be installed on all types of material; metal, wood or plastic. It is charged by a powerful Mono Crystal solar panel and the LED light never need to be replaced. Requires only 1 hole of 0.6 Lamp can be installed at any required angel Up to 3-4 hours run-time Built in night light to find switch easily Easy adjustment of solar panel

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7.2v 100mA Flexible Solar Panel

Our flexible solar panels are specially designed to recharge AA, AAA, 6V and 12V batteries. They are easily integrated with devices for direct power or solar recharging. The flexible solar panels are thin and lightweight, making them perfect for use while traveling. These remarkable flexible solar panels are suitable for rigorous weather conditions, though optimal performance is in normal atmospheric conditions. Note: These flexible solar panels do not come with Blocking Diodes. If you are using this panel to charge batteries then you will need to attach a blocking (reverse) diode or disconnect the panel when sunlight is not hitting the panel. Output: 7.2V; 100 mA; 0.72 watts Dimensions: 10.6″ x 3

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