<div>I should clarify that I think insolation is "sun-light falling", you'll probably need to adjust for for the conversion efficiency of your photovoltaics.</div> <div> </div> <div>If anyone has a membersip in the American Society of Mechanical Engineers or access to the Journal of Solar Energy Engineering, this article might be of interest:</div> <div> </div> <div>Global Surface Solar Energy Anomalies Including El Niño and La Niña Years</div> <div><a href="http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JSEEDO000123000003000211000001&idtype=cvips&gifs=yes">http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JSEEDO000123000003000211000001&idtype=cvips&gifs=yes</a></div> <div><br>Weather<sup> </sup>anomalies that increase clouds influence the reliability of both renewable<sup> </sup>energy and building environmental-control systems. Non-grid solar power systems may<sup> </sup>run out of capacity for such items as communications electronics,<sup> </sup>flood-warning stream gages, refrigerators, and small village power systems. This<sup> </sup>paper provides 1×1-degree resolution global maps that identify those regions<sup> </sup>which experienced large abnormal solar energy during a 10-year period.<sup> </sup>A source is identified where specific values for maximum year-to-year<sup> </sup>variability can be obtained in regions where ground-site measurements do<sup> </sup>not exist. The information may aid in the selection of<sup> </sup>safety factors for solar power systems. <br> </div> <div class="gmail_quote">---------- Forwarded message ----------<br>From: <b class="gmail_sendername">Chris Leonard</b> <<a href="mailto:cjlhomeaddress@gmail.com">cjlhomeaddress@gmail.com</a>><br>Date: Mon, May 19, 2008 at 2:33 AM<br> Subject: [Its.an.education.project] Energy alternatives (comes from ''Ivan's latest blog entry on OLPC'')<br>To: <a href="mailto:Its.an.education.project@tema.lo-res.org">Its.an.education.project@tema.lo-res.org</a><br> <br><br> <div>This site may have useful data on solar potential with finer granularity/resoultion.  </div> <div> </div> <div><a href="http://www.gaisma.com/en/dir/pe-country.html" target="_blank">http://www.gaisma.com/en/dir/pe-country.html</a></div> <div> </div> <div>They claim to derive their data from here:  <a href="http://eosweb.larc.nasa.gov/" target="_blank">http://eosweb.larc.nasa.gov/</a></div> <div> </div> <div>The term you need to search on is "insolation" (more-or-less a measure of solar energy potential). The map linked in the earlier message is found reused by many solar sites, but has limited utility given it's low rez.</div> <div> </div> <div>cjl</div> <div> </div> <div>++++++++++++++++++++++++++++++++++++++++++++</div> <div> </div> <div>the solar maps that have been indicated just show the "what should be" <br>situation according to the place that the countries have in the globe.<br><br>Peru has a different climate (we should be an almost equatorial country! <br> full of sun!) due to the Humboldt current and the presence of the 2nd <br>highest chain of mountains in the word: the Andes Mountain Chain.<br><br>Regards,<br><br>Javier Rodriguez<br>Lima, Peru<br><br>Edward Cherlin wrote:<br> ><i> On Sat, May 17, 2008 at 12:22 AM,  <<a href="http://lists.lo-res.org/mailman/listinfo/its.an.education.project" target="_blank">forster at ozonline.com.au</a>> wrote:<br></i>><i>   <br></i>>>><i> In Peru, my country, there is rain 5 months by year, totally cloudy, day<br> </i>>>><i> after day.  Just 2 or 3 hours with some sun.  So, according to the<br></i>>>><i> manufacturers, all solar panels can just provide from 5% to 20% of its<br></i>>>><i> normal capacity (normal capacity is got in a full sunny day).<br> </i>>>><i>       <br></i>>><i> See <a href="http://www.oksolar.com/abctech/solar-radiation.htm" target="_blank">http://www.oksolar.com/abctech/solar-radiation.htm</a><br></i>>><i> Peru doesnt look too bad in its worst month<br> </i>>><i>     <br></i>><i><br></i>><i> It's suggestive, but we need to see the methodology and the source<br></i>><i> data. It's too easy to mislead with pictures of statistics.<br></i>><i><br></i>><i>   <br> </i>>><i> _______________________________________________<br></i>>><i> Its.an.education.project mailing list<br></i>>><i> <a href="http://lists.lo-res.org/mailman/listinfo/its.an.education.project" target="_blank">Its.an.education.project at tema.lo-res.org</a><br> </i>>><i> <a href="http://lists.lo-res.org/mailman/listinfo/its.an.education.project" target="_blank">http://lists.lo-res.org/mailman/listinfo/its.an.education.project</a><br></i>>><i><br></i>>><i>     <br> </i>><i><br></i>><i><br></i>><i><br></i>><i>   <br></i></div></div><br>