Topic: I have 75KW solar power available - page 2. (Read 1921 times)

It's more and more troll as I think about it.   Irrigation uses a lot of water.   But electricity..... much less.  I cannot imagine a irrigation system taking 75KW to run.  And again the fact OP say's they built this and cannot get water.  These things are planned out on all parts.

Unless OP comes with pic of solar, which he should have if he has one.  I go with troll.

Even with 75 kW you would think OP could sell it back to the power company since he's already hooked up to the grid.  I suppose it's possible the power company produces such a surplus of energy that they just don't want to buy... but I can't imagine they wouldn't be selling any surplus off to other regions.  Maybe it's more accurate that the OP just doesn't want to sell because of the rates the power company buys it... but that doesn't fit either since original plan for this power was to drive some irrigation equipment, so any profit made from selling would be more than they were planning to get.

So, either it's a troll or OP didn't do a very good job explaining his situation

If this is real OP, and assuming you're converting into AC from those cells, make sure you convert into 208/220/240V and not 110/120V.  Miners will thank you.

OP said they were to small... 75 KW sounds like more then enough for most but they said not


Part of reason I asked for picture of solar panel setup is i think decent chance OP is a troll.

For building all of this and not being able to get water just is odd (It could be true).  But traditionally you would only invest in serious irrigation if you had a nice well or waterway or something that guarantees water.  If they used traditional ways to get water price is rediclous.

isn't better to you for selling your electricity? not the solar pannels itself, but the electricity that this thing produce

i heard that it is very remunerative, if you sell abroad, to some small company

Putting aside the solar, what is your power cost for a "cloudy day"? If that's more than about $.10 USD/KWh, then you need to rethink this project. Obviously there will be times when you consume more power than you deliver, and if that's too much you'll be on the losing side. Somebody suggested that you are in California, which isn't know for it's low electricity rates. Is "net metering" done over a month or what? Does it work to "spin the meter backwards" for short periods of time (e.g. daytime), and run it "forwards" at night or on a cloudy day?

You also need to consider the environmentals of you building.  Most mining gear won't operate well if it's say 90F inside for very long (e.g. hours).

Interesting idea though!

Internet not very much.  More important that it's consistent and does not drop connections.

You would need to do a decent amount of modification as far as cooling for 75kw of gear.   

As far as finding people that would depend on how much you charged per kw. 

Can you show any pictures?  Seems like you would have a lot of them of the solar part at least. 

Thanks for the suggestions.  It does seem like bitcoin could be a good investment to make with the solar project.... I think I'll look into this a bit more.  I hadn't even considered leasing out the facility to other bitcoin users.  That sounds intriguing and would remove a lot of the complexity.  How difficult is it to find people wanting to rent space?

Also, what kind of bandwidth would I need.  We have fiber nearby with 100MB connection.  With that large of an array, would I need more bandwidth than this?

PM sent.

There is a cost to entry in terms of bitcoin mining equipment, Buying S1's, S2's, S3's and other low cost equipment that is being liquidated due to energy cost of running the equipment will be the cheapest entry point in the short term.
Typically in a net metered situation, the utility company will pay you the wholesale rate for the energy produced if you don't use it with in 12months of generating it. In NJ the wholesale rate is ~3.5cents/kwh. If your net metering gives 0 buy back for unused net metered energy... then you absolutely want to do something with the solar energy that is being wasted and bitcoin mining may be a good choice. If your net metering pays you wholesale for unused solar energy of 3.5cents/kwh then that's probably about $275 a month for your size system versus the ~$500 to $3k/month you would make mining at the current complexity and price of bitcoin.
I've been mining with solar energy for a few years now. I also have substantial experience in the solar space and have designed and installed many megawatts of grid tied and off grid solar systems. I currently have 60kw of solar online at my own site and will be bringing another 40kw of solar online over the next 6months.  Feel free to pm me if you're looking to have a team come out and set up a mining system for you.

First, where are you located? I would guess California (due to your comment about water issues).
That means you'll get good use out of the solar panels.
I'd measure how many kwh you get on average and then I would invest in equipment to use 1/2 of the total.
That way, you'll use net metering as your power storage basically for night time when the solar array output is 0.
Maybe start slow, in case there's going to be a new generation of miners coming out over the summer so don't get all the equipment at once.
Your other consideration should be ventilation since the number of miners you can run will heat up the shed.

A quick calculation (which may not be accurate, so correct me if I'm wrong):
I'll assume you can get 8 solid hours at 100%:
75KW * 8h = 600KWh
600KWh / 24 hours = 25KW
So I'd run 25KW of miners so that you can basically run them for free (using net metering during the night).
Then, assuming you're going to run at 80% capacity due to not overloading wires/circuits:
25KW * 80% = 20KW
That means you can run 30-33 S5's for 36-40 TH.
At the current difficulty that'll get you ~$2900/month.

You could sell hosting of bitcoin mining equipment for a $/kwh fee.  At maximum capacity, only charging .04/kwh you could make over $2000/month basically just leasing space.

You could realistically get twice that, and you wouldn't have to buy the mining equipment.

I am new to these forums as well as new to BitCoin, though I've always followed the price.  My father has a farm with irrigation.  We received some grants to build a small solar farm to power the pivots.  However, because of water calls being made across the state, we find ourself with a brand new 85'x150' shed with a 75KW solar array on the roof with nothing to power.

It's not large enough to sell to the power company (in my state) for cash and I have nothing to net meter in this location (net metering gives us credits to offset consumption at that location).  Should I look at BitCoin mining?  This location is hooked to the grid so I could power the HW day and night.  I just don't know how to make use of this investment that we have made.

Any ideas?