I hope this doesn't need to be updated:
White Paper: Analysis of Large-Scale Bitcoin Mining Operations
http://www.immersion-cooling.com/publications/Analysis_of_Large-Scale_Bitcoin_Mining_Operations.pdfExample #2: ASICMiner Gen3 - Most Efficient Next-Gen Cluster
The Generation-3 ASICMiner chip (manufactured and sold by ASICMiner/Bitfountain) is presently considered the most efficient and least expensive mining device to be released in 2014. The hardware will be available from ASICMiners partners and distributors worldwide, adding a total hashrate of 400PH/s to 1600PH/s to the network within this year .
The final price is currently unknown, but the chips themselves are sold for $500 to $1000 per TH/s. Initial tests suggest a power consumption of 500W with a performance of 1TH/s and room for improvement.
A very conservative assumption would be a 50% increase in manufacturing cost for the finished board including power-train and power supplies, resulting in a final blade-style unit with 4TH/s and 2000W power consumption at a manufacturing price of $1500.
Assuming total network hashrate of an arbitrary 175 PH/s (5X current network) at the time of deployment, this would mean the equivalent of around 43,750 AM-Gen3-2000W units. By extension, one would have to commission 4,375 units worth $6.6 million to own 10% of the network, or 436 units worth $654,000 to own 1%.
Assuming the space usage equivalent of a 4U enclosure for sufficient air flow, a 1.2MW cluster with 600 units, at 10 units per rack, this would imply a physical foot print of 1,200 / 2 / 10 = 60 high density 20kW racks @ about 60 x (8x2) ft2 = 960 ft2 of data center space to own 1.37% of the network (at a hardware cost of $900,000).
All this would provide the miner about $30.400 per day in gross revenue in an arbitrary 175PH/s future network hashrate (~$643 USD/BTC).
Example 2.4PH 1.2MW Mining Container (ASICMiner Gen3):
● 6 tanks per container, 200kW-240kW each
● 400 boards each tank, 500W per board, 2,400 boards total
● Equivalent to 600 4U boxes
● Shipping container footprint instead of 60 racks in high density facility
● 2-3PH/s at estimated hashrate (based on reports from China )
● No thermal throttling, possible performance increase to be tested with actual hardware
● Fixed and predictable cost, no matter if fully or only partially populated
It's called "staff". 
