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-   -   DIY solar array 12.5 kw (https://ecorenovator.org/forum/showthread.php?t=3053)

stevehull 05-04-17 10:12 PM

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) is an upper case M (don't know why)

hour is expressed as hr or just h

kW, MW, etc. These are units of power

kWhr, MWhr are units of energy (or kW-hr, MW-hr or kW-h, MW-h) as power over a time period

Let's not let James Watt roll over in his grave as James watt!

I know, I know - picky, picky. But the detail is important!


Steve

ps these posts otherwise are great

pinballlooking 05-04-17 10:19 PM

Come on and post the power you made last month.

stevehull 05-05-17 08:17 AM

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

Steve

pinballlooking 05-05-17 08:23 AM

Thanks for posting your numbers but.
Say what size array you have and what month it was for.
That is only way it is useful info.

stevehull 05-05-17 02:53 PM

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

pinballlooking 05-17-17 01:08 PM

I love this time of year the other day 85,267 kWh made in one day.
1.04 MWh so far this month.

pinballlooking 06-01-17 08:29 AM

12.5 kW array we generated 1,820 kWh May 2017 This is the lowest May we have had.

May 2017= 1,820 kWh
May 2016= 1,922 kWh
May 2015= 2,144 kWh
May 2014= 2,076 kWh

Highest one day May 2017 = 85.3kWhs
We banked 745 kWh for the winter.


I exported 24 months billing from my electric company. We have to pay the meter fee but they have to pay us wholesale for extra banked power once a year.

We have paid them $108.50 for the last two years. This covers is all heating cooling my house and driving our about 35K EV miles in this 24 months.




Other solar producers show us your numbers for May when you have them.

where2 06-03-17 01:48 PM

My 4.4kW array
May 2017 = 649kWh
May 2016 = 588kWh
May 2015 = 632kWh
May 2014 = 632kWh

pinballlooking 06-04-17 07:30 AM

Quote:

Originally Posted by where2 (Post 54670)
My 4.4kW array
May 2017 = 649kWh
May 2016 = 588kWh
May 2015 = 632kWh
May 2014 = 632kWh

Good numbers you had your best May. We have had a fair amount of rain in May but we really need it out lakes are low.

DEnd 06-04-17 01:03 PM

Quote:

Originally Posted by stevehull (Post 54464)
kilo (thousand) is a lower case k, mega (million) is an upper case M (don't know why)

Mega is upper case to differentiate it from milli (thousandth or .001). Anything Mega and up is capitalized as Peta (P), Zetta (Z), and Yotta (Y), also share lower case abbreviations with Pico (p), Zepto (z) and Yocto (y).


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