{"id":11230,"date":"2015-07-01T21:21:58","date_gmt":"2015-07-01T21:21:58","guid":{"rendered":"http:\/\/www.oracletutoring.ca\/blog\/?p=11230"},"modified":"2018-02-14T16:55:16","modified_gmt":"2018-02-14T16:55:16","slug":"solar-energy-price-per-watt","status":"publish","type":"post","link":"https:\/\/www.oracletutoring.ca\/blog\/solar-energy-price-per-watt\/","title":{"rendered":"Solar energy:  price per Watt"},"content":{"rendered":"<h1>The tutor continues from his last post about the value of solar energy dollars.<\/h1>\n<p>In my <a href=\"?p=11216\">last post<\/a> I discussed the Wattage one might expect from solar energy for $100.  Based on a graph from <a href=\"http:\/\/blogs.scientificamerican.com\/guest-blog\/smaller-cheaper-faster-does-moores-law-apply-to-solar-cells\/\">Scientific American<\/a>, the equation for Watts per $100, W, at time t (with 1980 as year 0 and 2008 as year 28) turns out to be<\/p>\n<p>W=4.2e^(0.0787t)<\/p>\n<p>Extrapolating, one can plug in 35 for t to get the predicted Watts per $100 today:<\/p>\n<p>W=4.2e^(0.0787(35))=66Watts for $100<\/p>\n<p>In fact, just talking about the hardware itself, one can get more than 100W for $100 in 2015 (see <a href=\" http:\/\/sunelec.com\/solar-panels\">sunelec.com<\/a>, for example.)  However, for a typical residential application the price per Watt might be more like $4.50, installed.  Thus, the Watts available for use might be more like 22 per $100.<\/p>\n<p>Interestingly, taking the average of the &#8220;theoretical&#8221; 100W for $100, along with the &#8220;practical&#8221; 22W per $100, one arrives at 61W per $100, which is fairly close to the 66W predicted by the graph.<\/p>\n<p>I&#8217;ll be talking more about solar energy for households in coming posts:)<\/p>\n<p>Source not already mentioned:<\/p>\n<p><a href=\"http:\/\/www.pv-magazine.com\/news\/details\/beitrag\/us-installed-solar-pv-costs-continue-to-fall_100016490\/#axzz3efx6MZa0\">pv-magazine.com<\/a><\/p>\n<p>Jack of <a href=\"https:\/\/www.oracletutoring.ca\">Oracle Tutoring by Jack and Diane,<\/a> Campbell River, BC.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The tutor continues from his last post about the value of solar energy dollars. In my last post I discussed the Wattage one might expect from solar energy for $100. Based on a graph from Scientific American, the equation for &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"more-link\" href=\"https:\/\/www.oracletutoring.ca\/blog\/solar-energy-price-per-watt\/\"> <span class=\"screen-reader-text\">Solar energy:  price per Watt<\/span> Read More &raquo;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[429,435,384,181,3,909,458],"tags":[910],"class_list":["post-11230","post","type-post","status-publish","format-standard","hentry","category-consumer-education","category-consumer-math","category-energy","category-lifestyle","category-math","category-solar-energy","category-technology","tag-solar-watts-per-100"],"_links":{"self":[{"href":"https:\/\/www.oracletutoring.ca\/blog\/wp-json\/wp\/v2\/posts\/11230","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.oracletutoring.ca\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.oracletutoring.ca\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.oracletutoring.ca\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.oracletutoring.ca\/blog\/wp-json\/wp\/v2\/comments?post=11230"}],"version-history":[{"count":14,"href":"https:\/\/www.oracletutoring.ca\/blog\/wp-json\/wp\/v2\/posts\/11230\/revisions"}],"predecessor-version":[{"id":29724,"href":"https:\/\/www.oracletutoring.ca\/blog\/wp-json\/wp\/v2\/posts\/11230\/revisions\/29724"}],"wp:attachment":[{"href":"https:\/\/www.oracletutoring.ca\/blog\/wp-json\/wp\/v2\/media?parent=11230"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.oracletutoring.ca\/blog\/wp-json\/wp\/v2\/categories?post=11230"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.oracletutoring.ca\/blog\/wp-json\/wp\/v2\/tags?post=11230"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}