Hi. I just ordered Antminer S5 from batch 1. Here is the specifications:

 
Specifications
Hash Rate: 1155 GH/s ±5%
Power Consumption: 590 W (at the wall)
Power Efficiency: 0.51 J/GH (at the wall)
Rated Voltage: 12V
Dimensions: 298 mm x 137 mm x 155 mm
Cooling: 1x 12038 fan
Operating Conditions: 0 °C to 35 °C
Certified By: FCC / CE
Network Connection: Ethernet 

And my question is: What power suply should i buy to fully use 2 of these on 1 AC? Im mineing a bit but im still newbie in AC suplying.

Full page about this miner : https://www.bitmaintech.com/productDetail.htm?pid=00020141222080420665NM851L7d060D 

Greetings.