Also interesting that our results are so close together…looks like one can expect between 6.5 and 7 hours of energy on the BEST day of the year…
That’s probably on a crystal clear long day with zero clouds. Worst day will be much harder to compare apples to apples, since clouds will vary over the different homes.[/quote]
On Friday, June 19th, we generated 87.31 kWh with an 11 kW system. On Saturday, June 20th, we generated 84.3 kWh. We’re about 6-7 miles from the coast and the panels are new (within the last year). I’m surprised our generation is so good because we have trees that shade the panels during part of the day, and we also get the coastal influence. Must be the orientation or the panel/inverter types(?).[/quote]
I just checked. I got 71.98 on Friday
6.92 = 71.9 / 10.4
7.93 = 87.31 / 11
Yours is way higher than the numbers others have posted.
Not sure the reason…a few possibilities:
(a) do your panels point due south? Supposedly the best orientation
(b) I have noticed inconsistencies in the energy reported, on the order of 3 to 4 kwh per day. For example, checking two sites for my house on Friday:
– My installation company’s website (sunrun) reports I generated 69 kwh
– My equipment company’s website (solaredge) reports I generated 71.98
That’s a difference of about 3 kwh.
How are you determining how much you generated?[/quote]
I’m looking at the installer’s (Sullivan Solar Power) site. If there’s another way to find the info, please let me know because the numbers do indeed seem way too high (not that I’m complaining, if they’re right).
We have both west and south facing panels, with the majority facing west. And they do get shade at different times in the afternoon, and we do get some coastal fog since we’re about 6-7 miles from the coast (maybe a bit closer). They are Kyocera panels. We have string inverters — which I was lamenting until just reading this thread, if our numbers are correct.
For the record, 6/19/15 was our best production day so far.
