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Old 08-08-2022, 10:54 PM
 
Location: Lost in Montana *recalculating*...
19,826 posts, read 22,729,238 times
Reputation: 25097

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Quote:
Originally Posted by Arkay66 View Post
Well, we down here call it cloudy when we can't see the sun because there are CLOUDS all over the sky.
+1 for brutal obvious honesty, kudo's.
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Old 08-11-2022, 12:03 PM
 
Location: Texas Hill Country
1,833 posts, read 1,437,553 times
Reputation: 5769
Quote:
Originally Posted by guidoLaMoto View Post
The averege peak solar for TX is ~5.5hrs/d...Your installation generated 98 kW, so, if there was 100% efficiency, that means you have an installation of 98/5.5 = ~ 18kW...HUGE!! that's 60 panels of 300W-- covering >1100 sq ft ... (Your electricity consumption is twice that of an average family.)...How many panels do you actually have?..If more than 60, then you're starting off with less than 100% efficiency and clouds lower it from there.

Your energy production went down on the cloudy day by 21/98 = 21%
Where did you come up with those numbers? They aren't remotely accurate.

Further, by whose data are you claiming we use more than twice that of an "average family?"

Let's see some valid sources for your assertions before anyone else draws the wrong impression from your clearly biased opinion of solar power.
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Old 08-12-2022, 10:09 AM
 
Location: The Driftless Area, WI
7,290 posts, read 5,170,467 times
Reputation: 17804
11,000kW-hr /yr x 12 months/yr = 916 kW hr/month-- average US household electric demand
https://www.eia.gov/energyexplained/...e-in-homes.php

Peak sun for TX-- 4.8 to 6.5hrs https://www.turbinegenerator.org/solar/texas/

BTW-- the capacity factor for solar installations (ratio of actual production vs stated capacity) is only in the 10-25% range in most cases-- although considerably higher in the SW US "Sun Belt." https://solarsena.com/solar-capacity...-states-power/

How big is your system? With that info, we can calculate your capacity factor.

You stated you generate 98kW one day... that was over 5.5hrs of good sunlight (+/-, depending on your location)...98/5.5 = 18 kW each hour, so you must have an 18kW installation.....panels are usually 300W, so 18000/300 = 60 panels...panels are on the order of 3.5 x 5.5 ft x 60 panels = 1155 sq ft.

..and, foro your production to go down by only 20% on a cloudy vs sunny day, then we can deduce that your system is much larger than 60 panels-- or else you better check your meter's accuracy.

Last edited by guidoLaMoto; 08-12-2022 at 10:36 AM..
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