SUN ANGLES  

Sun Angles Resources
The web has served solar energy well. Solar radiation data, daily values of important variables, dates for the solstices and equinoxes stretching years into the future, interactive tables of altitude and azimuth drawn up for you on the spot, and free engineering software (from the Canadian government-in many languages) are just a few of the wonders available.

And you can Google anything you've ever heard of and get good results. It's a whole new world.

Membership organizations are still important, however. These are the two big ones, with links to many, many smaller ones. Calendars of events, solar tours, reports, etc:

www.ises.org
The International Solar Energy Society, the UN of solar organizations

www.ases.org
The American Solar Energy Society, a section of ISES

Free newsletters:

www.renewableenergyaccess.com
Good editorials, lots of news and reader comments, multitudes of business contacts.

www.re-focus.net
Newsletter of ISES, UK based, more staid and international than REAccess.

www.cleanedge.com
Consultants to NASDAQ, emphasis on commercialization, stock quote page.

www.eere.energy.gov
US DOE Energy Efficiency and Renewable Energy bulletin.

Free solar radiation data, calculations, and engineering software:

eosweb.larc.nasa.gov - Surface/Solar Energy
NASA's Surface meteorology and Solar Energy site, free solar radiation data for sites all over the planet, wonderful discussion of their methodology, wonderful site, links to

www.retscreen.net
Canada's fount of free software for system design and analysis, 12,000 downloads a day!

aa.usno.navy.mil - Altitude/Azimuth
Calculates tables of altitude and azimuth for any site, any date, several time intervals.

aa.usno.navy.mil - Earth Seasons
Gives dates of solstices and equinoxes from 1992 to 2020. Impress your friends.

Wildcard: (changes weekly, doesn't imply endorsement)

http://www.grupofenix.org/

Working with Nicaraguan neighbors and students Susan Kinne and Richard Komp have developed a powerhouse of solar activities and products in Nicaragua.


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