Quote from: allcoinminer on August 03, 2014, 03:17:07 PM

Quote from: PlanetCrypto on August 03, 2014, 02:18:31 PM

Quote from: edgar on August 03, 2014, 01:45:02 PM

Quote from: PlanetCrypto on August 03, 2014, 01:41:10 PM

Quote from: aurel57 on August 03, 2014, 01:27:21 PM

Quote from: PlanetCrypto on August 03, 2014, 01:22:12 PM

The first rack are S1's, the second rack are S3's.
As of last night, the 12 S1's are hashing @ 2,265 GH/s, and the 12 S3's are Hashing @ 5,228 HG/s for a total of 7,494 GH/s.
After that measurement, I overclocked the S3's to 237.5MHz and am monitoring them to see which ones are capable of this increase.
This morning it seems I have 2 "problem children" that don't like the increased clock rate.
But am hashing around 7.9 TH/s.

what do you pay per KW?

Less than .0986/KWH.
We are building/installing a solar farm to supply the energy required.
Payback/breakeven on the solar farm is 24-26 months and is grid tied, so under Minnesota Statutes any excess generation the power company must pay us for.
By the end of the year, the power company (Lake Country Power) will be our backup power source.
And if w ever decide to cease mining operations the solar farm ends up becoming a nice little revenue stream.
It is a fact in America that the cost of electricity NEVER goes down and tends to track with the cost of living.
The secret is to be on the supply side of the equation versus the consumption side of the equation.
And with installed solar at less than $1.00/W this is a reality.

1USD/watt is crazy cheap for installed solar!!

care to share details?

im still waiting on some 500w kickstarter panels to turn up that were scheduled to turn up in april...

they were considerably more exp than 1USD/w

Tad off topic, but here goes.

Like Bitcoin mining the solar installation industry is the "Wild Wild West". Caveat Emptor

ML Solar on eBay, from time to time, sells the Sharp 250HAT's SHIPPED @ $0.76-$.087 per watt. But for the best pricing it's best to call and talk to them directly (no eBay selling fees) http://mlsolar.com/.
www.sunelec.com sells a variety of panels that are in the sub $0.50/W range.
We have purchased product in the past from http://www.simpleray.com/, we are listed with them as "Solar Installers".

For grid tie installations we like the enphase microinverters (http://shop.mlsolar.com/Enphase-M215-60-2LL-Solar-Power-Inverter-180917011985.htm), and for battery bank installations we use exclusively the MorningStar MPPT Charge controllers (which by far have the fastest MPPT algorithm in the industry and the best warranty coverage) http://www.morningstarcorp.com/products/tristar-mppt-600v/.

Probably will regret doing this, but, contact me @ admin@planetcrypto.com

How you are connecting the miners? DC to DC or DC to AC?

Current plan is DC to AC to DC using off the shelf tech. That way any excess KWH is sold to power company. The grid becomes our "battery bank".

Am exploring a 600V to 48V Battery Bank system to power the miners.
So it would be 600V DC (solar array) to charge controllers (Morningstar MPPT 600's) to 48V Batteries (probably US Battery 425A/hr L16 HC's in strings of Cool

to 48V/12V DC/DC converters to the miners. System would include AC/DC battery charging for those non-sunny days. Backup genny for battery charging when/if the grid goes away (I own a continuous duty rated 35Kw Onan that is just looking for a purpose in life). This is a grid isolated system technically.
Downside of that route is conversion inefficiencies, cost of batteries, cost and complexity of DC/DC conversion(s). Upside is that the miners are effectively UPS'ed and battery backed up.

Am also looking at using Syn-Gas to power a genny. Which is wood gasification, purify and warehouse the gas (methane, CO, and minor amounts of H2 in suspension, Nat Gas effectively), then use the Syn-Gas to power the genny to do battery charges periodically. Logging scrap is plentiful here and currently considered an annoying waste product of the logging industry.

Am also investigating using wood gasification Syn-Gas as a feed stock to a Fisher-Troops processor to make liquid fuels (diesel/gasoline, GTL-Gas to Liquid). http://en.wikipedia.org/wiki/Fischer%E2%80%93Tropsch_process

Another possibility is using wood gasification Syn-Gas in Bloom Energy processors. Like the ones used by eBay, Google, and Walmart. http://en.wikipedia.org/wiki/Bloom_Energy_Server.

We have time to sort all this out and make an informed decision. As we move forward I'll try to remember to post pics.