tag:blogger.com,1999:blog-5316973342361549484.post4205554728342089874..comments2023-08-25T03:31:15.459-07:00Comments on Busy thinking about sustainability: The joy of solar panelsSustyAppshttp://www.blogger.com/profile/09850749681009004337noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-5316973342361549484.post-11043689084607283542007-10-24T13:24:00.000-07:002007-10-24T13:24:00.000-07:00So, it sounds like you're a) doing simple-payback,...So, it sounds like you're a) doing simple-payback, rather than a NPV calculation, and b) assuming that your $250 savings will stay constant over time rather than rising with the price of electricity. Bear in mind that energy prices have been rising quite steeply over the past few years (on the order of <A HREF="http://www.cfr.org/publication/7531/inflation_risks_head_higher.html" REL="nofollow">Auroshttps://www.blogger.com/profile/13717088139593020249noreply@blogger.com