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Right. Besides that, batteries have a shelf life. A few years down
the line, the client will need to replace the bank. A $10K reinvestment
after a few years could erase any cost effectiveness of an off grid
system. In many cases they could pay the extra money and hook up to the
power line now. <br><br>
At 11:02 AM 10/15/2016, you wrote:<br>
<blockquote type=cite class=cite cite="">My design philosophy these days
matches yours 100%, Allen. Because of cheap PV, and FLA batteries still
stuck in the 1910s. It was a different story (not too many years ago!)
when a good deal on PV was $5 a watt.......<br><br>
Dan Fink<br>
Adjunct Professor of Solar Energy Technology, Ecotech Institute<br>
IREC Certified Instructor™ for:Â <br>
~ PV Installation Professional<br>
~ Small Wind Installer<br>
Executive Director, Buckville Energy<br>
NABCEP Registered Continuing Education Providers™<br>
<a href="tel:970.672.4342">970.672.4342</a><br><br>
 <br><br>
On Fri, Oct 14, 2016 at 3:55 PM, Allan Sindelar
<<a href="mailto:allan@sindelarsolar.com">allan@sindelarsolar.com</a>
> wrote:<br>
<dl>
<dd>Dana (and I'm curious if others agree),<br>
<dd>I used to work with 4-5 days of storage, back with modules were
expensive and batteries were relatively cheap. As in recent years these
two have reversed - modules are cheap and batteries are dear - my
fundamental design approach has changed. I now design around 2-3 days of
storage with a larger array, as long as there's a backup generator in the
system. I size to at least 100% of the projected winter average daily
load. <br><br>
<dd>The batteries recharge more quickly, including on partly cloudy days
between storms. They spend more of their time full, thus keeping them
happier and giving them as much or more life, even with more and deeper
cycling. FLAs are easier to EQ, given the hotter charge rate. And the
customer spends less.<br><br>
<dd>You used to live in SW Colorado, a similar sunny winter climate. Is
it the same in Idaho where you live now? <br>
<dd>Allan<br>
<dd>Â <br><br>
<dd>Allan Sindelar</b><br>
<dd><a href="mailto:allan@sindelarsolar.com">allan@sindelarsolar.com</a>
<br>
<dd>NABCEP Certified PV Installation Professional<br>
<dd>NABCEP Certified Technical Sales Professional<br>
<dd>New Mexico EE98J Journeyman Electrician<br>
<dd>Founder (Retired), Positive Energy, Inc.<br>
<dd><a href="tel:505%20780-2738">505 780-2738</a> cell</b><br><br>
<br>
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