And now the price is 22.6 cents x 100,000 = $22,600. If I knew the company would be around in a few years I might be tempted to grab some of these 50 year tokens.  However now they are charging 6 cents per kWh and are struggling to keep the company afloat.

https://www.coingecko.com/en/price_charts/giga-watt-token/usd

I run 2 S7s and 1 S7-LN at my cabin to keep it from freezing and reduce the amount of natural gas I have to buy.  I have them tuned lower and the S7-LN is really quiet.

And the news just gets worse for Gigawatt and their customers, now they are changing their rates from 3.3 cents as promised in their contracts with WTT holders to 6 cents.  Their original contract stated 3.3 cents for 50 years, and now just about a year later it is already 6 cents.  No wonder there are lawsuits all over the place and their CEO and founder has left the country.  They were a well respected company a few years ago, and now they are just struggling to hold on.  I really feel sorry for the OP and anyone else who purchased WTT tokens in their ICO, those will be worthless soon unfortunately.

http://www.ifiberone.com/columbia_basin/crypto-firm-giga-watt-aims-to-retool-after-upheaval/article_341615a0-c37f-11e8-8c4e-676d6611b1b5.html

https://medium.com/@gigawatt/giga-watt-restructuring-and-policy-changes-e8cc05a309d9

Norm,

I think Gigawatt is having issues expanding into Grant County since they instituted a moratorium on power for Bitcoin miners, which is why they can’t get more customers into their data centers.  I was close to investing in their token at launch, but luckily didn’t get involved with it as I was building out my own data centers at the time.  I was interested in these S9 miners for sale until I heard they were at Gigawatt, then I was also worried about being able to get them delivered, and one of my data centers isn’t too far from them.

Also, I manage over 400 miners and I do charge 1,455 watts for 13.5 th/s miners, that is the number I get at the wall from the 3 phase Tripp lite PDUs and it correlates closely with the demand charge and usage from the electrical bill.  You are right that they mostly work at rates exceeding 13.5 th/s.  I only have friends/family in my data centers and I feel like I am charging the correct amounts for their units.

It sounds like the miners are $21k and the tokens are roughly $36k for a total package price of $57k, still too risky for me to get involved but maybe someone who needs 100 kW will jump on it if they need the power and have more efficient machines to put in place there.  Hopefully the OP will find a buyer if he hasn’t already.

The OP states he is selling both:


And another member is asking about the tokens here:

On an east and west facing roof you would not want to angle them to the south because then you will be introducing shading to the panels closely spaced together, especially with the lower sun angles in winter.  Also with tilting introduced it will destroy the aesthetics of a low profile system.  With east and west facing orientation you will also have a certain percent power reduction, I think it would be about 85% but don’t quote me on that, it’s been 18 years since I designed my system.

You probably don’t need to because you will never have those modules producing maximum power under ideal conditions.

And I need to make a small correction, your 7.7 kW inverter is CEC rated at 97%, the 3.8 kW inverter is 96.5%.

Need Phil or Notfuzzy for this one to verify my numbers or correct me where I’m wrong:

Your 7.7 kW inverter has a maximum usable DC load of 8100 watts at 240 volts.
You have 31 solar modules each 295 watts = 9145 watts, with wiring losses ~8,230 watts going through that one inverter.  It seems to me that you might have 1 solar module too many going through that inverter, or maybe the inverter is able to handle all that power your modules can produce under the most favorable conditions (full sun, cool day) for a short period.  Your CEC rating, and I’m in California so I’m not sure if the rest of the nation uses CEC, is 96.5 so the most power that inverter can produce is 7,816.5 watts AC and with an average of 4.5 hours of sunlight per day over the course of a year, you should produce on average 35.2 kWh per day with just that inverter.

So you added 5 more 295 watt solar modules and a 3.8 kW inverter.  That inverter can handle 4000 watts of DC power at 240 volts. 5 x 295 = 1,475 x .9 = 1327 watts so with the CEC rating factored in you can produce an additional 5.8 kWh per day for a total of 41 kWh on average per day.

The good news is that your 3.8 kW inverter can handle up to 15 solar modules at 295 watts so you have room to add 10 more solar modules to your system.  Doing that will get you a total system of about 53 kWh per day on average, it will definitely get you close to a 60 kWh per day range this time of year if your existing system is giving you 45-46 kWh per day now.

http://files.sma.de/dl/27676/SB30-77-1SP-US-40-IA-xx-14.pdf

Technical Data starts on page 65

Stryfe:  assuming a 120/240 volt system, is that correct?  Mine is 120/208 volts but I don’t believe that it’s as common as 120/240 volts.

Sometimes courts aren't about common sense.  It's more about calculating risks and removing doubt.  You don't know the judge's background, you don't know the other side's tactics.  If you can remove one doubt from the equation you will be better off in court.

"The law, for all its failings, has a noble goal - to make the little bit of life that people can actually control more just" - Scott Turow

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.

I’m sorry for your frustration, but before you get a lawyer take a good look at your contract with them.  Are they selling you promised pv production or selling you a system of modules and inverters?  If 65-70 kWh average per day is stated in the contract then you will most likely win in court.  If you have emails back and forth with them claiming your system will produce 65-70 kWh per day then you probably have a good case.  If it’s not in the contract or an email then it will be your word against theirs, and the contract will probably decide the case.  I’m not a lawyer but I do have a minor in business contract law and I have been involved in solar pv criminal and civil cases, and just recently a bitcoin mining case against a utility district.  I’m not giving legal advice as to whether or not you have a case, just giving my opinion to look at your contract with the company before exploring legal options. 

Also, as your system produces 1,380 kWh per month right now and just 1 S9 consumes about 1,000 kWh per month you might want to disconnect your asic miner if your goal is to stay within tier rate 1.

You should move this question to https://bitcointalk.org/index.php?board=160.0, someone there should be able to answer.

There’s your first mistake, don’t count the hours the panels are generating electricity.  Phil knows what he is talking about and is trying to help you understand PV production.  I’ve had a 14 kW DC system since 2001.  We are trying to help you understand what you will produce on average per day over a year.  If you want to produce 65-70 kWh on average per day you will need about a 17-18 kW DC system in Florida depending on how efficient your inverters are.  The calculation is quite simple.  18 kW x .9 for wire losses x .95 for efficient inverters x average sun hours per day where you live (about 4.5). 

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.

Do you have alternatives such as microwave internet service in your town?  I've had to go with a microwave service at a out-of-town building in central Washington and it works great.  I'm not sure the latency on it, but it must be better than satellite.  Also, I use remote access with it all the time without issues.

Have you tried using a different web browser such as Firefox or Chrome?

What is the model number of the power supply?

The APW3+-12-1600 will only start at voltages above 205 volts

The APW3++ will start at voltages between 95-105 volts but the rated power on 110v is only 1200 watts
 

I’m sorry but I’m not qualified to answer those questions, but there are some on this forum that are.  I’ll give some of my thoughts and let someone else answer your specific questions, I wouldn’t want to be responsible for damaging old wiring or burning down a house.

6. How many volts are you running?  I’m assuming single phase.  Continuous load circuits in North America must be derated 80%; not sure where you are mining.  I’d go lower than 80% with older wiring, but then again I wouldn’t run miners long term except in a data center.  When I do testing at my house I have a dedicated single phase 30 amp 208 volt circuit (my clothes dryer circuit) which I connect up to 3 S9 miners to, which keeps me under the 80% threshold.  I’m using a 30 amp PDU and drawing less than 21 amps with 3 miners.

7.  I’m using 3 phase Eaton BR360 breakers at my data center which I believe are type C, not sure for your application.

8.  I’ve found that the cost of a UPS for miners far exceeds the cost of any down time, so I don’t run any sort of backup power.  I’ve been running with high quality equipment and have been down less than 5 minutes over 18 months of mining due to power outages.  More of my downtime has to do with internet outages.

The real answer to your subject question is in a data center with 3 phase power.  If you just want a few miners and not a mining farm then a house is okay as long as you like noise and heat or are able to put the miners in a location where both are mitigated.
An old house has old wiring and has a good chance of burning down if you aren’t careful.
Before you start looking for answers to questions 1-8, the first question you should ask your power company is “what is the cost per kWh”.  That answer will tell you whether or not to proceed with upgrading the wiring in the house.  Also, kWh isn’t the only cost on a power bill btw.