[RE-wrenches] Inverter ratings exceeding 25kw fir battery backup

[Dave Angelini Offgrid Solar]

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  offgridsolar at 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 at 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  offgridsolar at 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
> tyrone at oregonsolarworks.com
> 
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Links:
------
[1] http://members.sti.net/offgridsolar/
[2] https://offgridsolar1.com/
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