It has been one year since I started tracking my solar stats from my solar panel arrays on my property. I was encouraged to post about each months production and was always interesting to see how they compared to others such as @steevc or @ksteem as they also make such reports about their arrays. With now a few months of data to go over I gathered it all up.
I plugged in all the numbers into a spread sheet and made a few graphs showing my trends for the year:
all measurements are in kilowatt hours (kWh)
Total power produced for one year 15,940.9w (15 Mwh or Megawatt hours) We can see our lowest was deep into the winter time here, and our highest was October. I was not expecting the highest to be so late in the year, but seeing June being the second best productive month is something that makes sense.
Above is the load amounts for each month, meaning how much demand there was from the AC side where the service panels are. In the winter we mostly heat using water from the wood furnace which does not make much power consumption. But in the summer we run our air conditioners and that does still use quite a bit of power. So makes sense to see the higher loads during the summer.
Import tells us how much power from the grid was used, where load be the raw amount of power used import will tell you just what you "imported" from the grid. We can see during the summer time it is much higher, hoping when I bring my new solar panels online my import numbers will be much lower.
Charge tells us how much power went into the battery arrays. I have two 45kw battery banks, so when the loads are low but much light is coming in most of it goes to the battery.
Discharge is the consumption of power from the batteries, usually happening at night. Or when its cloudy. This power provides supplemental energy.
Here are all five charted on a month to month basis.
Array A build:
System Size = 5.5 kWp DC
Panels = Sungoldpower Monocryalline 60 cell (12 Panels, 450 Watts each)
Mounting System = Brightmount EG4 screwed into 6x6 timbers
Wiring: 1x 8 AWG 19 strand PV direct bury wire pair
Inverters = 2x Sol-Ark 15k all-in-ones (240V)
Battery Backup = 48 3.2v EVE LF280 LiFePO4 280AH batteries
Battery Management system = Daly Smart BMS 16S 48V 500A
Battery Capacity = 45.696 kWh (840AH)
Propane Generator = Briggs and Stratton Power Protect 26kw
Array B build:
System Size = 9 kWp DC
Panels = Sungoldpower Monocrystalline 60 cell (20 Panels, 450 Watts each)
Mounting System = Brightmount EG4 screwed into 6x6 timbers
Wiring: 2x 8 AWG 19 strand PV direct bury wire pair
Inverters = Sol-Ark 15k all-in-one (240V)
Battery Backup = 48 3.2v LiFePO4 290AH batteries (unknown brand)
Battery Management system = Daly Smart BMS 16S 48V 250A
Battery Capacity = 47.328 kWh (870AH)
Propane Generator = Briggs and Stratton Power Protect 22kw
Totals combined for all arrays:
1344.4 kWh (1.34 MWh) produced for the month of May
Previous posts on my solar stats
Array C build:
System Size = 9 kWp DC
Panels = Eco-worthy Bifacial 190W (2 strings of 48 panels running at 275v each)
Mounting System = 12 Eco-worthy Multi-panels mount holds four panels each.
Wiring: 2x 8 AWG 19 strand PV direct bury wire pair
Inverters = Sol-Ark 15k all-in-one (240V)
Battery Backup = 3x Pytes V5 batteries
Battery Management system = Built in Pytes BMS
Battery Capacity = 15 kWh (272AH)
Posts for the last year about this project:
https://peakd.com/solar/@solominer/solos-solar-array-production-stats-august-2025
https://peakd.com/solar/@solominer/solos-solar-array-production-stats-july-2025
https://peakd.com/solar/@solominer/solos-solar-array-production-stats-june-2025
https://peakd.com/solar/@solominer/solos-solar-array-production-stats-may-2025
https://peakd.com/solar/@solominer/solos-solar-array-production-stats-april-2025
https://peakd.com/solar/@solominer/solos-solar-array-production-stats-march-2025
https://peakd.com/solar/@solominer/solos-solar-array-production-stats-february-2025
https://peakd.com/solar/@solominer/solos-solar-array-production-stats-january-2025
https://peakd.com/solar/@solominer/solos-solar-array-production-stats-december
https://peakd.com/solar/@solominer/solos-solar-array-production-stats-november
https://peakd.com/solar/@solominer/solos-solar-array-production-stats-october
https://peakd.com/solar/@solominer/solos-solar-array-production-stats-september
https://peakd.com/hive-163521/@solominer/solos-solar-array-production-stats-august
The mysterious month of October! Tis looking good. Hopefully with your new array you can bring that import down!
Hah yeah I wonder what was up with that.
Yeah should produce some good numbers if all goes well.. thanks
That's pretty awesome. Do you have any lines coming in from the utility company or are you completely off grid? You don't have to answer if you don't want. I was just curious.
Its okay, yeah we have grid power coming in. But utilizing it as little as possible is the goal.
thanks
That makes sense, I don't blame you!
My solar gain varies more over the year. I'll do some charts at the end of 2025. We don't have a/c, so consumption patterns will be different. It's interesting to see how others do.
Ah yeah, all depends on the clouds. When a hurricane or tropical storm comes around we usually lose a 2-3 days of good sunlight. So it all depends on what is going on that month.
Wow you do not have a/c? I like my room way to cold for that.
It rarely gets really hot here. A lot of offices have a/c now, but I don't like it too cold.
Really nice work. Love pictures from the gloaming!
Thanks! It was a special moment, getting that picture was nice.
I wasn't 100% certain and checked a picture from previous post, are your arrays fixed angle or can you adjust them with the seasons?
No my panels are fixed.. pointing southeast'ish. Maybe I can change the tilt but I do not bother.
Hey power prices are only going up so you're most likely setting up well for profit here in the next few years just with the amount you're offsetting! Awesome to see this all come together and what you're doing with it all keep it up! Honestly this is the type of blogged/life I want to aspire here to do myself so you're a bit of an inspiration lol
Indeed, having a way to produce my own power has been a long term goal for me.
Nice man, well I hope you can build something similar one day. I am really proud of my array, so best of luck to you.
Graph Porn! Love to see it!
My solar panels on my cabin are still going solid after 4 years now. I just need two more batteries and I won't have to burn gasoline out there anymore!
Hehe yeah lots of data points from a year of reports.
Nice, you can always add more panels/batteries..
Aircons chew so much power and my family uses the aircon heat mode during winter so I cannot win. You have a big system with all the combined sets. I will be shortly adding more panels and 2 more batteries seeing if I can hold on to the discharge.
They sure do, we got some split units installed to reduce our usage of the central units.. went from using around 6kw of power to around 2kw which was nice.
Yeah the battery bank is huge, its oversized for the current amount of panels I have. But I am about to build out 60 more so it should put all that 45kwh to use soon.
Best of luck with more batteries.. being able to scale is key.
The ability to scale is the positives and this is the part I enjoy as the goal of stepping away from the grid is possible.
I've never really thought about how much work and tracking goes into solar energy, but seeing your graphs and numbers makes it really interesting.
Nice, glad you liked the stats. I think pulling it all together into a post was a good thing to do.
Wow, this is really cool, being able to consistently track data for a whole year, and the data you've compiled is very detailed. October stands out even more.
So true, I love data.. so compiling all this was worth it I think.
Indeed, not sure what that was about.
Cool last chart showing it all together. Will be curious to see next year's once the new array is going.
Yeah I think the last chart really shows a good general picture of what is going on.
I hope to double those numbers with my new panels.. that is the hope.
Doing your part to lower pollution loads! Nice!
Indeed, using those solar rays.
thanks
👍👍👍
thanks
Once upon a time I wanted to build myself solar panels. It was spring 2011. I was looking for silicon wafers on ebay and calculating the payback period. And since electricity was cheap in my country, I suggested to my wife that I mine bitcoin for this energy. She told me that I was a big dreamer :)
Hah well maybe it is cheaper now to get into solar.
I feel ya, back in the day cpu / gpu mining would make that pretty possible. Now asics use so much power you need quite the setup just to power one.
June and October month seems good … here march and April month become good for the solar 😅
Hah different regions I guess. We shall see next year though, sometimes its just cloudy for a large part of a month.
Yeah
Very well done, although you still have to import some from the grid the majority is produced onsite. That's an awesome setup you have. And it sure saves on paying those electrical bills!
Thanks, yes that is why we are adding another 30kw of solar panels soon. Hoping to reduce that import by quite a bit. That is always my goal. Never to get to zero use but to reduce the amount of power I buy quite a bit.
Wow, that's cool! You know this about solar.
thanks much, I have learned a lot over the years.
So nice to know about solar energy. Involving graghs and number that makes it even more interesting.