Still Jason it seems very crazy! When I do energy for a home in your
neck, usually offgrid, we use mini-splits and in a large home
like you are referring with the grid, the same thing, use a split for a
zone, like the kitchen and save all that wasted battery capacity backing
up the whole home. They may be a bit uncomfortable without the grid but
they can survive a hurricane outage,
or longer.
The strategy of not backing up it all does require the people to be
reasonable and trainable. Very few central air systems are useable
without spending 10's of thousands more. I think none unless the owner
has more money than brains. Good for the economy I guess but all that
lithium has to go to the dump someday.
Seems alot of lithium is going to the dump with all these companies
building batteries and then going out of business also.
Alot of my calls are for systems that the installer has long gone out of
business. The owner is clueless because they never had
a clue about their power system. No Bueno for sure! Stay Safe !
Dave Angelini Offgrid Solar
"we go where powerlines don't"
[1]https://offgridsolar1.com/ [2] [1]
e-mail offgridso...@sti.net
text 209 813 0060
On 2025-02-18 9:42 am, Jason Szumlanski via RE-wrenches wrote:
Haha, we would not have the pool heater on a backup system, but many
times people want a partial home backup system with whole home annual
grid offset.
But for practical purposes around here, full-time residents often just
trade pool heating for air conditioning based on season. If you size a
backup system for central air conditioning, sometimes it is technically
possible to heat the pool off-grid in the winter because the house load
is otherwise a fraction of what it is in the summer months. In the
winter, we sometimes see batteries full by 9:00 am and a lot of wasted
solar energy.
Jason Szumlanski
Principal Solar Designer | Florida Solar Design Group
NABCEP Certified Solar Professional (PVIP)
Florida State Certified Solar Contractor CVC56956
Florida Certified Electrical Contractor EC13013208
On Tue, Feb 18, 2025 at 11:56 AM Dave Angelini Offgrid Solar via
RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote:
Sure I get how important it is to electrically heat a pool in a power
outage. 😉
Dave An,gelini Offgrid Solar
"we go where powerlines don't"
[1]https://offgridsolar1.com/ [2] [1]
e-mail offgridso...@sti.net
text 209 813 0060
On 2025-02-18 8:05 am, Jason Szumlanski via RE-wrenches wrote:
There are many 4,000 sq ft pool homes in my area with electric pool
heating and electric everything else where 25kW would just cover the
electric bill. Some larger homes around here can definitely require
more. Florida Power & Light allows up to 50kW on 120/240V split phase
service, but only if expected production does not exceed an estimated
115% of historical annual usage.
Jason Szumlanski
Principal Solar Designer | Florida Solar Design Group
NABCEP Certified Solar Professional (PVIP)
Florida State Certified Solar Contractor CVC56956
Florida Certified Electrical Contractor EC13013208
On Mon, Feb 17, 2025 at 12:58 PM Dave Angelini Offgrid Solar via
RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote:
Why is there a need for more than 25KW for residential please? Just
curious. In Nevada, 25KW is way into commercial.
Dave Angelini Offgrid Solar
"we go where powerlines don't"
[1]https://offgridsolar1.com/ [2] [1]
e-mail offgridso...@sti.net
text 209 813 0060
On 2025-02-17 9:43 am, Tyrone Houck via RE-wrenches wrote:
Greetings wrenches,
In Pacific Power territory we are coming up against roadblocks with
regards to whole house battery backup systems with inverter ratings
higher than 25kw. Even when the generation capacity is below the 25kw
residential limit, net metering applications are being rejected based
on the inverter rating.. The inverter rating in these cases is sized to
handle the customer's existing loads and will never export more than
the 25kw limit dictated by Oregon PUC. I am drafting a letter to
Energy Trust, the state, etc. But am curious if anyone else gas had
this problem or come up with a solution. I would appreciate to hear any
experiences or similar interactions with PGE or PPL or even how this
has worked in other jurisdictions, states, etc. Any input or support is
greatly appreciated.
Tyrone Houck
Oregon Solarworks LLC
CCB #204937 LRT #076
541-787-1366
tyr...@oregonsolarworks.com
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