<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">HI Brad,<div class=""><br class=""></div><div class="">I was just about to hit send on those exact wattages, yes completely agree.</div><div class=""><br class=""></div><div class="">As a sort of joke, the self discharge of the batteries is probably more than what she could make in a day.</div><div class=""><br class=""></div><div class="">Jay</div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Mar 16, 2023, at 4:29 PM, Bradley Bassett via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" class="">re-wrenches@lists.re-wrenches.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class=""><div class="">I tried this back in the 1970's with an exercise bike and a high efficiency generator (still have this if anyone wants it). If I pushed hard I could get it up to 200W, but only sustain about 100W. The only time I used it is when my battery was depleted and I wanted to watch TV. I had a 12VDC 5" B&W TV (so cute), so I would pedal like crazy during the commercials and it would just make it to the next commercial. It was way too loud to do it while watching. I eventually got a generator setup from Backwoods. <br class=""></div><div class=""><br class=""></div><div class="">Brad<br class=""></div></div><br class=""><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Mar 16, 2023 at 3:11 PM Ray Walters via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" class="">re-wrenches@lists.re-wrenches.org</a>> wrote:<br class=""></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">As I recall from pushing the "wayback" button, Backwoods and Real Goods <br class="">
used to sell something like that in the 90s. I would only see a <br class="">
pyschological benefit, based on the system size. I recall that the <br class="">
charge rate was less than 50 watts, so its really not going to be worth <br class="">
wiring into the system. Maybe she could do what several folks have <br class="">
done: power a TV while you pedal. Anyway, here is device that might do <br class="">
it: <a href="https://www.econvergence.net/" rel="noreferrer" target="_blank" class="">https://www.econvergence.net/</a><br class="">
<br class="">
Ray Walters<br class="">
Remote Solar<br class="">
<br class="">
On 3/16/2023 3:58 PM, Larry Brown via RE-wrenches wrote:<br class="">
> Wrenches<br class="">
><br class="">
> I have a client that we did an off grid system for about 4 years ago<br class="">
> The system is performing well<br class="">
> The client would like to keep charged her batteries in the winter with her stationary bicycle operating a small generator<br class="">
> Right now she uses a grid connection that was available and she turns on a breaker if needed to charge the batteries in the winter through the inverter<br class="">
> When the batteries are fully charged she turns the breaker back off<br class="">
> No need for any back up other times of year<br class="">
> That is the only use of the grid<br class="">
><br class="">
> Her request was to be off grid<br class="">
> This set up eliminated the need for her to have a generator for winter low light conditions<br class="">
> So far all is working as designed<br class="">
> But there is talk of adding a gas generator so that if the grid is down, there is a back up available<br class="">
> <br class="">
> The system has 16- AGM Concorde SunXtener Batteries configured in 2 strings of 8 batteries per string<br class="">
> They are PVX 3050T 6 volt batteries operating at 48VDC<br class="">
> They are charged from the PV Array by 2- Schneider Conext MPPT 80 600 Charge Controllers<br class="">
> The system has a Schneider Conext XW+ 5548 Single Inverter<br class="">
><br class="">
> Any thoughts or ideas of what equipment can be matched with a stationary bicycle that might give a trickle charge to the battery bank<br class="">
> Anyone ever played with setting this up?<br class="">
> She wants to try this out and see what is possible<br class="">
> Get some winter exercise and perhaps keep the batteries as close to full without using the grid or a back up gas generator<br class="">
><br class="">
> All suggestions welcome<br class="">
><br class="">
> Thanks<br class="">
> Larry<br class="">
><br class="">
> Larry Brown<br class="">
> Sun Mountain<br class="">
><br class="">
><br class="">
><br class="">
><br class="">
><br class="">
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