It's called a non grid tie inverter. On Oct 15, 2015 9:17 AM, "Mathew Howard" <mhoward...@gmail.com> wrote:
> I wonder if something like that could be designed to get around the > electrician/permit problem. What I'm thinking of, is a small system that > isn't designed to feed anything back into the grid, but instead generate > less than what you're using, store it in some smallish batteries and feed > it back into your house as needed. The whole system could be setup as low > voltage down to the inverter to get around needing an electrician to wire > it, if it was small enough you could even just plug it into an outlet... > but I'm pretty sure that wouldn't be legal, and I'm not really sure how you > would stop it from feeding back into the grid. > > On Thu, Oct 15, 2015 at 10:45 AM, Paul McCall <pa...@pdmnet.net> wrote: > >> Bill, that is kinda what I was thinking. If the price was not several >> thousand dollars, that might be a good option >> >> >> >> *From:* Af [mailto:af-boun...@afmug.com] *On Behalf Of *Bill Prince >> *Sent:* Thursday, October 15, 2015 11:44 AM >> *To:* af@afmug.com >> *Subject:* Re: [AFMUG] Did I miss Chucks opinion on Ubnt SunMax >> >> >> >> There is a company out here that is selling a relatively small (SLA-type) >> battery system for use with grid-tie solar. It has connections between the >> solar panels/inverter/grid. It "fools" the inverter into believing that the >> grid is still on by disconnecting the grid, and feeding a "pseudo grid" >> into the grid side of the inverter. If the sun is up, it leaves the panels >> connected as the primary source of power. If the sun is not up, it feeds >> battery to the inverter as "pseudo battery". >> >> It's still several thousand dollars. I don't know that it makes sense >> from an economic standpoint, but it's less expensive than a full-battery >> type system. >> >> >> bp >> >> <part15sbs{at}gmail{dot}com> >> >> >> >> On 10/15/2015 8:33 AM, Paul McCall wrote: >> >> Interesting concept. So, you would just use a smaller # of batteries and >> expect the solar array to run your household “live” x% of the time, and if >> doesn’t’ have enough, then it relies on utility power? >> >> >> >> *From:* Af [mailto:af-boun...@afmug.com <af-boun...@afmug.com>] *On >> Behalf Of *Chuck McCown >> *Sent:* Wednesday, October 14, 2015 10:23 PM >> *To:* af@afmug.com >> *Subject:* Re: [AFMUG] Did I miss Chucks opinion on Ubnt SunMax >> >> >> >> I have a grid tie inverter. Reduces my bill. A back up generator I much >> cheaper that batts. >> >> >> >> *From:* Sterling Jacobson <sterl...@avative.net> >> >> *Sent:* Wednesday, October 14, 2015 8:05 PM >> >> *To:* af@afmug.com >> >> *Subject:* Re: [AFMUG] Did I miss Chucks opinion on Ubnt SunMax >> >> >> >> What’s the best battery system currently? >> >> >> >> I remember buying a bunch of large batteries for our sites and wiring >> them in 48 volt to the inverter. >> >> >> >> Is there a better method than that for storing solar power from the array >> and using it at the house on inverter? >> >> >> >> Ideally it would be an inverter that took as much power from the solar as >> possible to power the house, then leaned on mains if it wasn’t enough. >> >> >> >> Is there even an inverter that intelligent for homes yet? >> >> >> >> Or are we just stuck with on/off use of the solar/batteries? >> >> >> >> *From:* Af [mailto:af-boun...@afmug.com <af-boun...@afmug.com>] *On >> Behalf Of *Chuck McCown >> *Sent:* Wednesday, October 14, 2015 7:46 PM >> *To:* af@afmug.com >> *Subject:* Re: [AFMUG] Did I miss Chucks opinion on Ubnt SunMax >> >> >> >> $1 per watt for DIY systems. >> >> That is without battery. A full battery system is going to cost you 3 >> times that or more. >> >> >> >> *From:* Sterling Jacobson <sterl...@avative.net> >> >> *Sent:* Wednesday, October 14, 2015 7:37 PM >> >> *To:* af@afmug.com >> >> *Subject:* Re: [AFMUG] Did I miss Chucks opinion on Ubnt SunMax >> >> >> >> Yeah, they said $1.50 a watt purchased, but do it yourself installed. >> >> >> >> I guess it’s nice having it converted on panel to AC. >> >> >> >> But what’s this price vs. buying panels yourself and running DC to a >> battery bank? >> >> >> >> I want both. I want the panels and the battery with a decent inverter. >> >> >> >> I don’t care so much about selling back to the grid. >> >> >> >> *From:* Af [mailto:af-boun...@afmug.com <af-boun...@afmug.com>] *On >> Behalf Of *Mathew Howard >> *Sent:* Wednesday, October 14, 2015 7:27 PM >> *To:* af <af@afmug.com> >> *Subject:* Re: [AFMUG] Did I miss Chucks opinion on Ubnt SunMax >> >> >> >> I think they mentioned something about under $1.50/watt,.. or something >> like that, but I have no idea if that's anywhere near what the real price >> will be. >> >> It looked to me like they're trying for simplicity more than cheap. >> >> >> >> On Wed, Oct 14, 2015 at 8:15 PM, Chuck McCown <ch...@wbmfg.com> wrote: >> >> $/watt is the only thing that matters to me. Pricing was not discussed. >> >> Mounting looks good. Normally integrated inverters and not the most cost >> effective method. >> >> >> >> Like to know the pricing. Also, you have to submit schematics and all >> kinds of other things to the local building inspection authority here to do >> a grid tie system. Not sure this would fly. Did not see all the labels >> and disconnects that are required here. >> >> >> >> *From:* Craig Schmaderer <cr...@skywaveconnect.com> >> >> *Sent:* Wednesday, October 14, 2015 5:25 PM >> >> *To:* af@afmug.com >> >> *Subject:* [AFMUG] Did I miss Chucks opinion on Ubnt SunMax >> >> >> >> Not sure when they released this, but I just saw this on their website. >> https://www.ubnt.com/sunmax/ >> >> >> >> >> > >
