we finally have parts and will be testing it in the next 2 weeks.

Looks like you have a 9kW DC system, converting it to AC at some point.  There are wiring losses and losses in converting from DC to AC.  Assuming a 8.5 kW AC system with high efficiency inverters, I would average about 5.5 hours of sunlight per year in my area, not sure what your average sun hours are.  So I would expect about 46-47 kWh per day on average over a year with a system that size.  Granted my system is older and I’m not sure how efficient your inverter is, so I’m just guessing on the numbers.  Assuming you meant you are facing directly south or at least in a southerly direction with panels in an east/west plane.

you sun does not count as 12 hours

in the usa   most people are 4.5 to 6 hours.

so 31 x 290 = 8990  and with highest end inverters you have 95% so .95 x 8990 = 8540  maybe  as low as .9 x 8990 = 8091

so if you are in the best state do 6 x 8540 = 51,240 or 51 kwatts max

at worst do 4.5 x  36409  or 36 kwatts

you are at 46   which is closer to 51

now here is the problem  a s9i  does 1.3 kwatts 24/7 so that is 31 kwatts a day.

looks like you are doing 5.5 rate to get the 46 kwatts.

So what state are you in?  do you sell the excess back to the grid?

you have some excess for a few hours each day.

Sunrise to sunset is not how you count sunlight for the purpose of solar.  First 90 minutes after sunrise and last 90 minutes count for under 1 hour of full sunlight.

If you are USA based you are inbetween 4.5 and 6 hours. For your year round average. Do you understand this.or do you not understand this.

Okay so let’s start over and try to understand basic rules.

You are stating 36 panels at 295 watts. Yes that is 10620 but you lose 10 percent or more due to wiring and inverters so drop to 9500 watts

Now those numbers are full sunshine at a perfect angle to your panels. Which is why I tell you you get 5 to 6 hours of sun a day.  Even though the sun rose at 7 am and set at 7 pm.

So 6 x 9500 is 58500 watts at best.  You are doing 5 x 9500 which is 47500

That is 47.5 kwatts. So the worse number would be you get 47.5 kwatts and should get 58.50 kwatts.

You should have a contract that states what you will generate 1 s9 uses 35 kwatts a day so you should run only one s9.  

I have no idea what your contract reads or what you paid.  If it reads you get 60 kwatts a day and you get 47 a day get a lawyer to fight them.

If it reads the panels do 10620 watts at peak you are not going to win.  Since to do peak you need perfect placement  like south on an angle that is just right.

That contract only states you can send 10500 watts to the inverters.

It does not say what leaves the inverters.

It is possible you have terrible invertors say 85 percent not 90 to 95 percent

Does this help you understand that you do not use 12 hours   to calculate

due to clouds rain and sun angle you are in  the 4.5 to 5 hour range  so you can use the peak 10600 x say 5 to get 53000 and take off 10% for inverter loss

sigh.... I am not sure how many times I have to say this ---- I am not counting Sunrise to Sunset --- I am counting the hours that the solar panels are generating electricity - I believe I have said this at least 3 or 4 times. The app shows me when it first starts generating and when it stops - though the first hour or so and the last hour or so are diminished - it is still producing for nearly 12 hours and has been April when it was installed.

Edit - and yes I understand about losing some to wiring/inverter etc and losing some because the angle will not always be perfect the full day.

They still are not producing what the salesman claimed - this was the first time I had gotten solar so I fell for their line of BS - I am still trying to hold them to their quoted estimates. Their claim is that they have installed over 400 systems and everyone else but me is producing what they say. They are not able to tell me why I am not anywhere near their estimates - all they do is blame the ASIC's but that is a consumption issue not a production issue. I have had that discussion with them at least a dozen times. They keep telling me to shut the miners off for 3 months and see if the panels produce more - that is the most retarded suggestion I have ever heard.

and @philipma1957 I do appreciate your break down - yours makes sense - the solar companies does not and that is my whole point with them.  They promised me a system that would produce 65-70 kwh per day (on average) and have failed to do so but see the blame as mine and not theirs.

I've been reading through this thread, mostly because I wish I could be running with a Solar set up at the moment. Maybe in time.

Without knowing the specifics of the contract, wording can be a bitch sometimes. Phils suggestion of a Lawyer may be the best course of action. Arguably if the average that should be produced is 65-70 KW per day, shouldn't a system having been in operation since April have been showing an average equal to or greater than those number to date??

I say that because summer should be the higher generation period with the average being dragged down through the Winter.

I'm curious about this blame the Asic approach, do they give any explanation for why they think that?

I am close to getting a lawyer. their claim is that I should be getting 65-70, but as Phil's math shows, that is not possible based on what they provided. The reason that the goal was 65-70 is that prior to my running of ASIC's my average consumption was close to 85 kwh per day. Their promise was to produce between 82%-83% of my average usage - this would then keep me in tier one pricing of .05 per kw/h for the amount I use over the production of the panels - which would have been 20 - 25 kwh per day or 600 to 750 kw/h per month (tier one is up to 1,000 kwh)

however, as I now run the ASIC's I am using considerably way more power - so they think my frustration is because of the bill - when I am instead frustrated about that it is not producing what they claimed - their way of calculating was way different than Phil's - so because it falls short, they first blame the ASIC's and when I then state that is consumption not production - they then try to blame the weather or blame trees etc - the closest tree to my house is nearly 150 feet away and my roof is never shaded. So while weather may affect it, we simply have clear days 90% of the time. On the bad weather days, the average production is between 20-30 kwh per day. I do realize that brings my overall average down. This is a 10.6 kwh system, or as Phil pointed out after taking into account for loss from wiring/inverters etc a 9.5kwh system - it has only ever gotten above 6kwh at any given time maybe 5 times and never over 8kwh at any time, not even for an hour.


I do understand and I do appreciate the help - I just wish the company I used understood it. I think they are overcharging and overstating and for 99% of their clients this may work as it does keep them in tier 1 pricing so their bill is cheaper and thus they may never actually look at the production.

he is better off with an l3+  it can use the free power software  and pull 700 watts to do close to 500 mh which is around 1.60 a day in earnings

a s9 pulls 1400 watts does 14th and earns
3.10 a day

so one does 500 kwatts a month       earns 1.60
the other does 1000 kwatts a month earns 3.10

if he powers the 1 l3+ off 12 hours he drops to 250kwatts  earns .80 x 30 = 24 bucks

or he could run the s9 8 hours a day  say 9 to 5  it would earn about 1.03 usd a day

and spend 333 kwatts a month  this is his best move  as he is 1380 -333 =  1047 kwatts better off

cross post check other solution which is run s-9 8 hours a day

how did you get this number in bold?

they charged you for 10.5 kwatt of power in the panels  .

you are making 1380 kwatts a month or 16,560 kwatts a year x 12.9 cents = 2136.24 a year in power.

or should I ask did you pay for a lease ? or outright ownership?

I'm not sure about privacy laws in your state, but don't assume that you can bring in an audio (if you have)/video recording if the other party had an expectation of privacy.  If the cameras recorded audio and video you may only be allowed to show the video portion without audio.  If you only have video it will carry a little weight as it makes your side more believable.  Remember in civil court you just have to show your case with a preponderance of the evidence.  Again, not sure about the laws in your state, make sure to check on that.

And this next part won't make sense, but because the company stated that your miner was the cause of the lack of electricity production, you might want to remove it temporarily.  By removing it you can show them and/or your attorney or the courts that it made no difference to the production of power of the solar panels.  You want to remove all doubt in the judges mind, and the judge might be confused between production and consumption.  If the solar company brings it up in court or even next week you can say that it's been disconnected on such and such date and it's made no difference to the production.  I only say this because you stated that the reason for the solar installation was to keep you in Tier 1.  You then installed a miner which uses 1,000 kWh a month which keeps you out of Tier 1, but without the miner you state that you would still be out of tier 1.  It would just be cleaner to stick with your story of wanting to stay in Tier 1, the solar installation was designed for that purpose, you were promised 65 kWh per day to keep you in Tier 1, and the system isn't working as promised.  It's a lot easier than jumping through hoops and defending your connection of a 1,000 kWh a month device that you'll need to explain in court, which nobody will understand.