and any attachments thereto.
Thank you.
From: RE-wrenches On Behalf Of
Jerry Shafer via RE-wrenches
Sent: Monday, January 27, 2025 10:21 PM
To: RE-wrenches
Cc: Jerry Shafer
Subject: Re: [RE-wrenches] PV watts question
Wrenches,
So MPPT,s working at high voltage high and high current with even wi
Rd Ste 130 | San Luis Obispo, CA |93401
>> <https://www.google.com/maps/search/735+Tank+Farm+Rd+Ste+130+%7C+San+Luis+Obispo,+CA+%7C93401?entry=gmail&source=g>
>> Cell phone +1 805 704 3226 | Fax +1 805 357 6104
>> www.recgroup.com | george.mcclel...@recgroup.com
>>
&g
up.com | george.mcclel...@recgroup.com
-Original Message-
From: RE-wrenches <re-wrenches-boun...@lists.re-wrenches.org> On Behalf Of jay via RE-wrenches
Sent: Monday, January 27, 2025 11:56 AM
To: RE-wrenches <re-wrenches@lists.re-wrenches.org>
Cc: jay <jay.pe...@gmail.com>
Subject
enches@lists.re-wrenches.org>
Cc: jay <jay.pe...@gmail.com>
Subject: [RE-wrenches] PV watts question
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HI All
I’m working with a customer who’s pretty savvy and is using PV watts
As Mike pointed out, in PV watts one sets the DC size, and cannot
explicitly set the inverter capacity. Changing the DC/AC ratio from 1.2 to
1.5 is implicitly decreasing the inverter max output by 20%.
Example:
DC 4.8 kW
DC/AC ratio 1.2 => inverter is 4 kW
DC/AC ratio 1.5 => inverter is 3.2 kW
-wrenches
Sent: Monday, January 27, 2025 8:41 PM
To: RE-wrenches
Cc: Jerry Shafer
Subject: Re: [RE-wrenches] PV watts question
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Interesting topic, what l am seeing is over throttling which will potentially
contribute to mid day clipping. Many inverters now can be overdriven
Interesting topic, what l am seeing is over throttling which will
potentially contribute to mid day clipping. Many inverters now can be
overdriven by as much as 200% but the inverter will only produce it's rated
output and 150% well that's right in there.
But hey what do l know. Looking forward to
EC Americas LLC
>>> 735 Tank Farm Rd Ste 130 | San Luis Obispo, CA |93401
>>> <https://www.google.com/maps/search/735+Tank+Farm+Rd+Ste+130+%7C+San+Luis+Obispo,+CA+%7C93401?entry=gmail&source=g>
>>> Cell phone +1 805 704 3226 | Fax +1 805 357 6104
>>> www.recgroup.c
4 3226 | Fax +1 805 357 6104
>> www.recgroup.com | george.mcclel...@recgroup.com
>>
>>
>>
>>
>> -Original Message-----
>> From: RE-wrenches On Behalf
>> Of jay via RE-wrenches
>> Sent: Monday, January 27, 2025 11:56 AM
>> To: RE-wrenc
gt;>
>>
>> -Original Message-
>> From: RE-wrenches > <mailto:re-wrenches-boun...@lists.re-wrenches.org>> On Behalf Of jay via
>> RE-wrenches
>> Sent: Monday, January 27, 2025 11:56 AM
>> To: RE-wrenches > <mailto:re-wrenches@lists.r
-Original Message-
> From: RE-wrenches On Behalf
> Of jay via RE-wrenches
> Sent: Monday, January 27, 2025 11:56 AM
> To: RE-wrenches
> Cc: jay
> Subject: [RE-wrenches] PV watts question
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> Caution: This is an external email and may be malicious. Please take care
Hi Jay,
Per your note, annual kWh production should go up as you add more modules
to a project, even if you are increasing the DC/AC ratio. I wonder if the
metric you are reporting out is kWh per kWp per year, or specific yield?
https://www.solarpowerworldonline.com/2017/08/specific-yield-overvie
-wrenches On Behalf Of jay
via RE-wrenches
Sent: Monday, January 27, 2025 12:56 PM
To: RE-wrenches
Cc: jay
Subject: [RE-wrenches] PV watts question
HI All
I'm working with a customer who's pretty savvy and is using PV watts for his
design.
What I can't figure out is the kwh/ye
Luis Obispo, CA |93401
Cell phone +1 805 704 3226 | Fax +1 805 357 6104
www.recgroup.com | george.mcclel...@recgroup.com
-Original Message-
From: RE-wrenches On Behalf Of jay
via RE-wrenches
Sent: Monday, January 27, 2025 11:56 AM
To: RE-wrenches
Cc: jay
Subject: [RE-wrenches] PV
HI All
I’m working with a customer who’s pretty savvy and is using PV watts for his
design.
What I can’t figure out is the kwh/year goes down if he uses dc/ac ration of
1.5 instead of 1.2 which is the default.
Hes in Santa Fe NM.
.8 ratio= 1663 kwh/yr
1.0 ratio = 1668 kwh/yr
1.2 ratio =
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