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 <i...@avantwireless.com> 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:* af@afmug.com
>>>>>> *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:* af@afmug.com
>>>>>>> *Subject:* Re: [AFMUG] Tesla solar roof
>>>>>>> �
>>>>>>> Chuck what do you think of the upgraded battery?� $5,500
>>>>>>> �
>>>>>>> �
>>>>>>> Image
>>>>>>>
>>>>>>> �
>>>>>>> ------------------------------------------------------------
>>>>>>> ------------
>>>>>>>
>>>>>>>
>>>>>>> *From:* Af mailto:af-boun...@afmug.com on behalf of Craig Schmaderer
>>>>>>> mailto:cr...@skywaveconnect.com
>>>>>>> *Sent:* Friday, October 28, 2016 8:04:11 PM
>>>>>>> *To:* af@afmug.com
>>>>>>> *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.
