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Search: Posts Made By: stevehull
Forum: Solar Power 02-08-19, 06:25 AM
Replies: 745
Views: 476,863
Posted By stevehull
Data from my 12.5kW Enphase system ...

Data from my 12.5kW Enphase system


Week Peak Power Energy Produced
01/01/2019 - 01/07/2019 9.42 kW 185 kWh
01/08/2019 - 01/14/2019 9.37 kW 167 kWh
01/15/2019 - 01/21/2019 10.5 kW 256 kWh...
Forum: Solar Power 07-04-17, 11:47 AM
Replies: 745
Views: 476,863
Posted By stevehull
June was an good month with production from a...

June was an good month with production from a 12.7 kW array being 2144 kWhrs. May was a bit higher with 2170 kWhrs.

No electric bill for those months (and July as well).

Am really looking at...
Forum: Solar Power 06-05-17, 12:41 PM
Replies: 745
Views: 476,863
Posted By stevehull
May was good for my 12.7 kW STC system. 2170...

May was good for my 12.7 kW STC system.

2170 kWhrs

Used 2070 kWhrs and banked 100 kWhrs.


Steve
Forum: Solar Power 05-05-17, 02:53 PM
Replies: 745
Views: 476,863
Posted By stevehull
Billing period of March 24 - April 23 (30 days),...

Billing period of March 24 - April 23 (30 days), 1780 kWhrs. 12.7 kW STC (48, 265 W panels).

For the month of April (30 days), 1710 kWhrs.

Thanks for the reminder Pinball,


Steve
Forum: Solar Power 05-05-17, 08:17 AM
Replies: 745
Views: 476,863
Posted By stevehull
I made 1780 kWhrs last billing month, and banked...

I made 1780 kWhrs last billing month, and banked 102 kWhrs.

Steve
Forum: Solar Power 05-04-17, 10:12 PM
Replies: 745
Views: 476,863
Posted By stevehull
Guys, not to nitpick, but the use of incorrect...

Guys, not to nitpick, but the use of incorrect nomenclature is driving me, as an engineer, nuts!

Watts is a capitol W; named after James Watt

kilo (thousand) is a lower case k, mega (million)...
Forum: Solar Power 04-04-17, 08:20 PM
Replies: 745
Views: 476,863
Posted By stevehull
12.7 kW DC STC array. 1.78 MWhr for March. ...

12.7 kW DC STC array. 1.78 MWhr for March. Highest week of 482 kWhrs. Highest daily of 79 kWhrs.

Steve
Forum: Solar Power 08-02-16, 11:26 AM
Replies: 745
Views: 476,863
Posted By stevehull
Pinball (or others with years of PV production...

Pinball (or others with years of PV production data),

Since you have over five years with your array, you can perhaps answer/comment on my summer/winter PV array kWhr production question.

I...
Forum: Solar Power 07-15-15, 12:41 PM
Replies: 745
Views: 476,863
Posted By stevehull
Just called ProSolar and they have "nothing for...

Just called ProSolar and they have "nothing for metal roofs". I am not adverse to using mounting devices that are not "approved".

Any specific suggestions on the L pads that might mount up with...
Forum: Solar Power 07-15-15, 11:18 AM
Replies: 745
Views: 476,863
Posted By stevehull
I have 6" thick SIPS under the metal ag roof and...

I have 6" thick SIPS under the metal ag roof and they are rated at more than 120 mph, so I am OK there. The entire shop is made of SIPS.

But to focus on racking, it is necessary to use IronRidge,...
Forum: Solar Power 07-15-15, 10:49 AM
Replies: 745
Views: 476,863
Posted By stevehull
Not a standing seam, just like the ag panels you...

Not a standing seam, just like the ag panels you seem to have. These have raised trapazoidal elements every foot or so. From your posted pictures, it looked like that is what you have.

Steve
Forum: Solar Power 07-15-15, 09:52 AM
Replies: 745
Views: 476,863
Posted By stevehull
Pinball, speaking of rails, have you looked at...

Pinball, speaking of rails, have you looked at the "rail less" roof attachments for PV panels? I have the same kind of metal ag panel roof you have. Can't tell if you have anything underneath, but...
Forum: Solar Power 07-01-15, 01:56 PM
Replies: 745
Views: 476,863
Posted By stevehull
This is REALLY good advice and something I had...

This is REALLY good advice and something I had not considered (PV replacement). We do have hail here and sooner or later, we get hit; not if, but when. I previously thought that baseball to...
Forum: Solar Power 07-01-15, 07:07 AM
Replies: 745
Views: 476,863
Posted By stevehull
PV guys - got a couple questions. I am just...

PV guys - got a couple questions. I am just itching to get my self install 15 kW system up, but am doing my homework, carefully.

Will go with Enphase - for a lot of reasons not relevant here. ...
Forum: Solar Power 05-09-15, 04:47 PM
Replies: 745
Views: 476,863
Posted By stevehull
Rob, I agree that low frequency AC and DC...

Rob,

I agree that low frequency AC and DC follow the same IR losses. I am comparing something like a "Sunnyboy" (centrally located string inverter), located many feet from the panels where you...
Forum: Solar Power 05-09-15, 04:37 PM
Replies: 745
Views: 476,863
Posted By stevehull
Pinball, The 30% renewable energy tax credit...

Pinball,

The 30% renewable energy tax credit expires on Dec 31 of 2016, not January 1, 2016. You are correct, that it must be fully permitted and in operation by the expiration date.


Steve
Forum: Solar Power 05-08-15, 08:54 AM
Replies: 745
Views: 476,863
Posted By stevehull
Pinnball, you wrote that "The M250 can have 16...

Pinnball, you wrote that "The M250 can have 16 modules on a branch circuit and that goes to a 20 amp breaker."

However, reading the Enphase material they state that only 14 M250 modules should be...
Forum: Solar Power 05-08-15, 07:36 AM
Replies: 745
Views: 476,863
Posted By stevehull
Pinball, your post on inverters (a couple post...

Pinball, your post on inverters (a couple post ago) described exactly why I am looking at microinverters and Enphase in particular.

One important issue not discussed is that the length of DC...
Forum: Solar Power 05-03-15, 01:44 PM
Replies: 745
Views: 476,863
Posted By stevehull
What is the model designation of the M 215 that...

What is the model designation of the M 215 that does not need the external ground?

I am getting real close to buying and am thinking of getting the 280 watt panels that are a LOT cheaper than the...
Forum: Solar Power 05-03-15, 11:11 AM
Replies: 745
Views: 476,863
Posted By stevehull
Pinball . . . Would like your opinion on...

Pinball . . .

Would like your opinion on using the M215s on a 275 or 280 watts panel. I understand that these 215s put out 240 watts without clipping. The output of a 275 watt panel is...
Forum: Solar Power 11-23-13, 06:37 AM
Replies: 745
Views: 476,863
Posted By stevehull
Pinball, You spoke of your 111% actual PV...

Pinball,

You spoke of your 111% actual PV output compared to what PVWatts predicted. Was this using the performance factor of 86% vs. the default of 77%?

Secondly, what diameter (gauge) wire...
Forum: Solar Power 11-22-13, 12:06 PM
Replies: 745
Views: 476,863
Posted By stevehull
Pinball and Vern, I take it the newer...

Pinball and Vern,

I take it the newer Enphase 250 is better than the older 215 model. It appears that the 250 model offers free monitoring and no ground electrode conductor (GEC) must save $ as...
Forum: Solar Power 11-22-13, 11:21 AM
Replies: 745
Views: 476,863
Posted By stevehull
Pinball, Great that you are using a...

Pinball,

Great that you are using a performance factor of 86% as I figured in 77% (from PVWatts)in my estimates. How do you verify the 86%?

Thanks for the info on individual panel monitoring. ...
Forum: Solar Power 11-22-13, 10:36 AM
Replies: 745
Views: 476,863
Posted By stevehull
Got a question for you guys with the Enphase...

Got a question for you guys with the Enphase inverters. I see a couple of different monitoring software systems.

Is this a fee for service or something else?

Lastly, I am wondering how...
Showing results 1 to 24 of 24

 
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