Re: Solar Circuit Needed
- Howard and All,
Thanks for the suggestions and the link to TouchandGlow website. That's exactly what I needed.
My system is not UL Approved and only powers my "ham shack". Since it's not UL Approved, the power company is not involved and there is no connection to the grid. Up where I live (2500 ft in Mountain Ranch,
Ca) we experience at least 3 or 4 major PGE outages of several days each due to snow or wind damage.
I put the system together on my own and it has been a life saver. I've always been interested in solar and I put up a small 800 watt system when I lived in San Jose. Since moving up here I have expanded it to 2500 watts. It is not cheap (currently $18,000 invested) but it is solely independent of PGE. I have a battery bank of 20 Surrette Rolls S460 wired for 12 vdc. Works fine and I only have to change the angle of the panels twice a year.
--- In Electronics_101@yahoogroups.com, Howard Hansen <hrhan@...> wrote:
> On 10/10/2011 6:01 PM, Mark wrote:
> > Hi All,
> > I need a circuit that would switch an AC line (120vac) on and off with
> > respect to the sun. On when it shines,
> > off when it doesn't.
> > I have a 2500 watt solar system connected to a Xantrex Prosine 2.0
> > inverter/charger. When I plug the inverter into
> > the AC socket to charge the batteries, it charges fine. But I also
> > have two Outback MX-80 charge controllers
> > connected to my solar panels which also charge my batteries. However,
> > when both the AC and the MX-80's are charging
> > the batteries, the Prosine gives me an error telling me that there is
> > more than one source charging the batteries.
> > I have available small solar cells to tell me when the sun is shining
> > as well as a 12 vdc source. I was thinking of a
> > relay tied to a circuit that senses the suns output.
> > It would be great to buy something off the shelf but I don't know of
> > any. Any ideas?
> > 73's
> > Mark K6YCV
> One suggestion is a light activated switch similar to the type used to
> turn street lights on and off. See:
> One model has a slide bar for adjusting the sensitivity. Because you
> need the opposite switching action then a street light you would also
> need to use a relay to get a closed contact during the day time.
> [Non-text portions of this message have been removed]