Solar Power: An Alternative Energy Source

Exploring the World of Science for High School & Beyond. The award-winning, Show Me Science Advanced series, examines the most recent developments and discoveries in science and technology. Each program is designed to help students understand the vital role science plays in our everyday lives and is an excellent in-class, library or home schooling tool. The 8-title Show Me Science Advanced series covers subjects from Fish Farming to Fossil Fuels. Students will develop a basic understanding of the fundamentals of Energy, Technology and Engineering and work their way up to more complex subjects.

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Solar Energy Careers

Solar Energy Careers

What should I do to start my career in the solar and alternative energy field?

I have a Bachelors in Material Science and Engineering. No particular solar experience. I’ve been looking to get a masters at Univ. of Texas or another Texas University, but I’m not sure which degree would best help me get a job, if at all. What should be my next steps, I’ve been researching for a few days.
How would I go about getting a entry job in the solar industry, what type should i look for?

Check out this company I represent. I think it may suit you well.
www.powur.com/therisingsun
If you have any questions feel free to call me anytime.
Joshua
602 418 2823

REC Careers in solar energy – Ellen Chong at Tuas, Singapore

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Solar Energy Chemistry

Solar Energy Chemistry

Are there other solar effects on the global climate?

I’m writing the Skeptical Science advanced rebuttal to “it’s the Sun”. So far I’ve covered the Sun’s impact on the Earth’s climate via solar irradiance (TSI) and galactic cosmic rays. Are there any other plausible and credible mechanisms by which the Sun could be impacting the global climate that the rebuttal should cover?

UV Irradiance is not well understood but can easily flucuate by 6-8% over a solar cycle.

“Though solar irradiance varies slightly over the 11 year cycle, radiation at longer UV wavelengths are known to increase by several (6-8% or more) percent with still larger changes (factor of two or more) at extremely short UV and X-ray wavelengths (Baldwin and Dunkerton, JAS 2004).
Energetic flares increase the UV radiation by 16%. Ozone in the stratosphere absorbs this excess energy and this heat has been shown to propagate downward and affect the general circulation in the troposphere. Shindell (1999) used a climate model that included ozone chemistry to reproduce this warming during high flux (high UV) years. Labitzke and Van Loon (1988) and later Labitzke in numerous papers has shown that high flux (which correlates very well with UV) produces a warming in low and middle latitudes in winter in the stratosphere with subsequent dynamical and radiative coupling to the troposphere. The winter of 2001/02, when cycle 23 had a very strong high flux second maxima provided a perfect verification of Shindell and Labitzke and Van Loon’s work.”

http://icecap.us/images/uploads/Solar_Changes_and_the_Climate.pdf

Solar Power Chemistry

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Solar Power Ratings

Solar Power Ratings

How would you connect a solar panel to a fan?

I would like to connect a solar panel to a small fan. I am not sure as to what is needed to actually “connect” the two together. Any help is appreciated.

Panels are rated nominally, and you can look at your fan to see what the ratings for the fam are to determine sizing of the panel.

Current multiplied by the volts (rated) gives you the wattage of the motor- just use this as a guide for sizing the panel. You do want a little more power from the panel than the motor draws for purposes of starting the motor and for having the fan operate at lower sun angles as well. You can add a battery if you chose, but it is not a requirement.

Just treat the leads of the panel like those of a battery red (+) and black (-) just connect those to the fan, if you match color for color, no problem. If the markings are not present and no wires are on the fan, try it one way, if it is the wrong way- reverse them.

AC operated fans will require an inverter to convert the DC to AC. These draw a certain amount of power as well. In general the same rules of thumb apply. It is just easier though to stick with a DC motor.

Mitsubishi Electric solar panels for gridtie array

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