I have 5 clients in Florida running mini-split heat pumps offgrid.
The smallest is a 13 kwh useable and the rest running L16 2v cells @
48v nominal. Not trying to be a contrarian but with a 2,000 square
foot house with great insulation and SEER numbers around 30, it is
not that hard. Need alot of solar, and virtual tracking for the
afternoon thunderstorms in the south also.
*Dave Angelini Offgrid Solar "we go where powerlines don't"
http://members.sti.net/offgridsolar/ e-mail [email protected]
<mailto:[email protected]> text 209 813 0060*
On Sat, 12 Sep 2020 12:54:39 -0400, Jason Szumlanski
<[email protected]> wrote:
54kWh doesn't go far for air conditioning in September in
Southwest Florida. Trust me. Most homes have $200+ electric
bills at $0.10/kWh this time of year, sometimes substantially more.
Generator backup, even with 4 Powerwalls, is necessary for
mission-critical grid-tied backup situations. Sadly, you can't
charge Powerwalls with a generator. You just bypass battery
storage and run loads straight off the generator, which means
the generator needs to be sized for the whole home. It would be
nice to have a generator input for supplemental charging at
least with a small portable unit.
There is no perfect solution for this application. At least no
cost-effective solution.
On Fri, Sep 11, 2020 at 6:06 PM August Goers
<[email protected] <mailto:[email protected]>> wrote:
Hi Bill -
I completely agree with your statement about all off-grid
applications. Most if not all need generators. And, I do
think there are some grid tied applications where generators
make sense too, especially for folks who live way out in the
woods as you mention. I was speaking about the mass market
in CA in cities or towns where the grid is typically fairly
reliable. If you install four Powerwalls, for example, you
have up to 54 kWh of storage available. There are
applications where generators make sense, and all these
fires and smoke and heat waves prove the point. I think AC
is critical for some parts of the country, and energy
storage + PV alone just won't cut it for those critical
applications.
But, yes, good point.
August
On Fri, Sep 11, 2020 at 2:33 PM frenergy <[email protected]
<mailto:[email protected]>> wrote:
August,
Quite frankly and with due respect about the
comment about more PV and battery to forego the need for
a generator, I disagree. Those folks living off-grid in
the sticks (um,er, myself included), it would be a very
bad thing not to have Gen input. The current situation
here in Plumas county (and many other counties right
now) is another perfect example. It is so smokey that
my daily KWhrs has been cut in half and of course every
other off-grid home is having the same issue. This has
been going on for almost a month with only occasional
breaks. There are also CC failures, FET board craps
out, other excrement occurs.
We all know there are many critical needs
for power especially to run a pump for fire protection,
frig for food, communication to know what the hell may
coming your way during some event (fire, flood, bad
weather) medical needs, etc. In the winter there are at
least a few times when there is little or no sun for 1
maybe 2 weeks...that gets to be a spendy array and
battery. Certainly, the idea of going that route works
for some scenarios but not off-grid. Generators are
still a much needed necessary evil. Maybe its a big
deal to incorporate that feature in an inverter??
Sounds like bean counting.
My $.02 worth
Bill
Feather River Solar Electric
Bill Battagin, Owner
4291 Nelson St.
Taylorsville, CA 95983
530.284.7849
CA Lic 874049
www.frenergy.net
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On 9/11/2020 1:01 PM, August Goers wrote:
In CA the market for ESS is primarily grid tied
support features driven by SGIP + backup (public
safety power shutoffs, folks who live in less stable
grid areas, folks worried about natural disasters)
so the ESS is designed to replace generators. This
might be a little trickier for areas that need air
conditioning during a grid outage (or for all
electric homes), but one tactic is just to go bigger
with the ESS and PV system. I guess what I'm saying
is that the value proposition might already be
getting better just to skip the generator and go
bigger with the storage. Even Generac might be going
that route.
August
On Fri, Sep 11, 2020 at 11:52 AM Jason Szumlanski
<[email protected]
<mailto:[email protected]>> wrote:
We are seeing tons of companies in Florida
offering Generac/Pika now. They didn't do it
when it was Pika, so why would they now that it
has an orange label? Crazy.
No generator input makes zero sense and even
less sense for a generator manufacturer.
On Fri, Sep 11, 2020 at 12:58 PM Chris Schaefer
<[email protected]
<mailto:[email protected]>> wrote:
Jeremy,
Pika was bought out by Generac and rebranded
as their PWR cell. Most of the old crew from
Pika are now working for Generac. It's
beyond me that Generac bought them and yet
they still don't have a generator input.
That's why I could never sign on to the Pika
product line. Good luck.
Christopher
On Fri, Sep 11, 2020 at 11:00 AM Jeremy
Rodriguez <[email protected]
<mailto:[email protected]>> wrote:
If anyone has any info on how to get a
hold of The former PIKA ENERGY support
group, please contact me off list.
Or if anyone knows where one could get
one of their inverters rebuilt/repaired
let me know.
Jeremy Rodriguez
Solar Installation / Design Expert
All Solar, Inc.
1463 M St
Penrose Colorado 81240
Sent by Jeremy's iPhone. Sorry for typos
and shorthand.
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