Article 63817 of alt.solar.photovoltaic: Path: news.misty.com!not-for-mail From: nicksanspam@ece.villanova.edu Newsgroups: alt.solar.photovoltaic Subject: Re: Photovoltaic cell efficiency question. Date: 13 Mar 2009 07:06:34 -0400 Organization: Villanova University Lines: 32 Message-ID: References: <689164a8-617a-40ae-9457-fa406785bda4@40g2000prx.googlegroups.com> NNTP-Posting-Host: acadia.ece.villanova.edu X-Trace: max.inside.misty.com 1236942394 10830 153.104.44.130 (13 Mar 2009 11:06:34 GMT) X-Complaints-To: abuse@misty.com NNTP-Posting-Date: Fri, 13 Mar 2009 11:06:34 +0000 (UTC) Xref: news.misty.com alt.solar.photovoltaic:63817 Russ in San Diego wrote: >gary0232" wrote: >> I wonder if anyone thought to modify the panel so water going to your hot >> water heater could flow across the underside of the panel. Just trickle a bit of water over the face. >> Not only would this same on your hot water heater costs, you would be >> increasing the efficiency of your pv's by keeping them cool. Yup. At the same time, you can also double sun power with a mirror. >... Yes, the idea has merit, in that it increases the panel efficiency >by cooling it. Unfortunately, you really would prefer to run a flow rate >sufficient to keep the panels at a temperature well below what you want >for domestic hot water. Just a fact of life. >This is achievable by use of a heat pump... OR with a tiny water flow :-) Try numbers... >BUT you're still left with the problem of having a liquid circulating >close to sensitive electronic equipment. Does it ever rain on your planet? :-) Nick