thats the point, its not additional, consolidating two things into one. Not a fan of regulation, but considering some of the roof repairs ive done coming in after a shoddy crafstman, I would hope some serious safety regs go into play on this stuff
On Sat, Oct 29, 2016 at 8:06 PM, Lewis Bergman <[email protected]> wrote: > They look great butit is going to have to compete with both regular > shingles and electricity. Pretty tough. Maybe if California mandates it. > > On Sat, Oct 29, 2016, 7:26 PM That One Guy /sarcasm < > [email protected]> wrote: > >> most of this tesla nonsense i ignore, green liberal puffery >> but this looks promising, as in really promising >> and if batteries can fully discharge multiple times the $/kw is way offset >> >> I envision a day when all shingles are solar cells. I hate the liberal >> green puffery on solar because of the disastrous environmental footprint it >> leaves behind, but replacing toxic asphalt with toxic electricity, thats >> something i can get behind, there is potential for a true carbon offset, >> something "renewable" has not achieved yet. >> Im no tree hugger, I think global warming is a scam, but i do now toxins >> are toxic, and the fewer there are the better. >> >> now if each of you could just donate to my gofundme a 100 to 1000 dollar >> donation, I will be happy to put this up on my house >> >> On Sat, Oct 29, 2016 at 6:26 PM, Robert <[email protected]> wrote: >> >> I don't think they would be more expensive, just more finicky... And >> matching your charge controller cycling/dwell, etc. is much more important >> for Li than just wet or dry for what we have now. And just getting a >> Solar charge controller for Li is problematic right now, not even matching >> settings on a charge controller to some arbitrary type of Li batteries that >> you may dig out of an electric vehicle without a full set of specs or >> without being able to match the batteries to the array you decide to define. >> Charging the Li batteries I use in hobby stuff is not for the >> light hearted. There are many rules, like not combining battery strings, >> in the Li world that don't exist in the wet world. I can string two 12V >> deep cycles together and slap a 24V charger on them and not have to worry >> about blowing up the house. Not true for Li... >> Maybe someone on the list has more experience with these than I >> do. Li strings have to have circuitry to prevent over discharging and too >> high a discharge rate. You folks are pretty inventive and could come up >> with all that. Not sure I want to take that on. I would like a nice >> solution with solar charge controller matched to it and all in DC.. >> >> On 10/29/16 3:42 PM, Bill Prince wrote: >> >> I would argue that they may be different, and perhaps incrementally more >> expensive than lead acid to charge manage. But not double. so perhaps a >> 27,000 watt-hour charge controller for lead acid is $2000 (pure >> speculation). The charge controller for a 13,500 watt-hour LI charge >> controller might be about the same price. >> >> The power wall is probably impractical simply because of the voltage >> that it runs at. Isn't it something like 500 volts? Not very usable from >> our perspective unless you want to double convert (first to AC, then >> back to DC). It would be much nicer to build a ~~ 56 volt system from >> surplus LI batteries and move on. >> >> bp >> <part15sbs{at}gmail{dot}com> >> >> On 10/29/2016 3:34 PM, Robert Andrews wrote: >> >> But charging Li batteries is nothing like charging lead acid and you >> need to have the right kind of charger for specific types of Li >> batteries... That's the issue right now. Otherwise I would be buying >> Li batteries like Pez... >> >> On 10/29/2016 10:47 AM, Bill Prince wrote: >> >> So it forwards the argument Chuck proposed; salvage battery packs from >> electric cars. DC all the way. >> >> >> bp >> <part15sbs{at}gmail{dot}com> >> >> On 10/29/2016 10:35 AM, Robert Andrews wrote: >> >> About 1.5 time lead acid will do. It's something I am drooling over >> for my remote sites... But the charging situation is the deal >> breaker... double conversion in and out of AC... and you have to use >> their solar If I remember right... >> >> On 10/29/2016 08:44 AM, Chuck McCown wrote: >> >> True. I wonder how many cycles it will do at that DOD. >> *From:* Bill Prince >> *Sent:* Saturday, October 29, 2016 9:42 AM >> *To:* [email protected] >> *Subject:* Re: [AFMUG] Tesla solar roof >> >> But did you notice that it allows 100% discharge? >> >> Doing the same thing with lead acid would require 27,000 watt hours. >> Double the cost. >> >> bp >> <part15sbs{at}gmail{dot}com> >> >> On 10/29/2016 8:34 AM, Chuck McCown wrote: >> >> 5000 watt of inverter is worth $1250. >> (5500-1250)/13500= >> � >> 31 cents per watt hour.� >> � >> You guys have posted battery costs of half that.� >> � >> *From:* Craig Schmaderer >> *Sent:* Saturday, October 29, 2016 6:14 AM >> *To:* [email protected] >> *Subject:* Re: [AFMUG] Tesla solar roof >> � >> Chuck what do you think of the upgraded battery?� $5,500 >> � >> � >> Image >> >> � >> ------------------------------------------------------------------------ >> >> >> *From:* Af mailto:[email protected] on behalf of Craig Schmaderer >> mailto:[email protected] >> *Sent:* Friday, October 28, 2016 8:04:11 PM >> *To:* [email protected] >> *Subject:* [AFMUG] Tesla solar roof >> � >> Looks sweet.� I hope it doesn't cost more than the house.� >> >> Get Outlook for iOS <https://aka.ms/o0ukef> >> � >> >> >> >> >> >> >> >> -- >> If you only see yourself as part of the team but you don't see your team >> as part of yourself you have already failed as part of the team. >> > -- If you only see yourself as part of the team but you don't see your team as part of yourself you have already failed as part of the team.
