Genesis Mining claims it started in Bosnia running GPU's then setup in China running scrypt and then finally ended up setting up several datacenters in Iceland mining bitcoin and X11.
https://vimeo.com/136927293I'm not sure how much power they have in total and I don't know how many sites in Iceland. However we can conclude since we only are talking about bitcoin and that just from what is shown in the video. I can count 16 sections on the bottom and another 6 on top, each containing 9 x SP30/SP35 machines using at least 3kW to 3.5 kW of power each. So thats between 594 kW and 693 kW at least.
Here are some more pics I found of their facility
http://www.datacenterdynamics.com/design-build/bitcoin-miner-runs-the-ultimate-shoestring-facility/94764.fullarticleWell after reading that article it claims that Genesis is currently using 1.2 MW. Also noted in the article is that BitFury's Iceland datacenter was apparently actually built by Advania. As previously discussed in the forum that BitFury has vacated this space. It appears that Advania now is offering this space to interested mining parties for 75 euro/kW-month.
https://www.advania.com/cloud/data-center-it-services/#bitcoin-colocationThey call it the Mjölnir Data Center and list the location here;
https://www.google.is/maps/place/Hafnavegur,+Hafnir/@63.9331794,-22.6711592,16.5z/data=!4m2!3m1!1s0x4929fd06e84f0793:0x6c01580688cd513f?hl=en
Apparently google maps imaging is out dated. BitFury had posted a video of this sites construction;
https://www.youtube.com/watch?v=jvGtrflL8zAYou'll also notice ... this well known image from that video;
https://news.bitcoin.com/wp-content/uploads/2015/09/bitfury-coop-view1.jpgIs the blurred backdrop image on Advania's page;
https://www.advania.com/cloudApparently there are 3 of these buildings each supporting 2 MW or more for a total of perhaps 6 MW.
http://cdn.ttgtmedia.com/rms/onlineImages/sdc_iceland_04.jpgAdditionally it does appear BitFury has a second datacenter in Georgia;
http://cbw.ge/wp-content/uploads/2015/12/10525004_1154234711273103_253096434_n.jpgWhich is certainly different from their first one which was stated to be 20 MW.
https://www.youtube.com/watch?v=G3xRNmtpy6sThe new datacenter is stated to be 40 MW.
http://cbw.ge/business/pm-unveils-datacenter-with-innovative-energy-efficient-cooling-system/And is stated to be utilizing their immersion cooling technology on both previous 28nm and latest 16nm chips.
"BitFury mega processing datacenter is equipped by the most advanced 28 and 16 nanometer chips."
Also don't forget Bitcoin Club Network which not much before January had less than 5 petahash is also in Iceland and lately has been showing up at around 20 petahash. Which means even with they have to be 5 - 10 MW.
https://www.youtube.com/watch?v=eId68Y9fsYAThey are clearly building this out right now.
This pic looks to be an older facility as it looks like all S2's or S4's and the page this image comes from talks about their new Iceland facillity back in July.
http://bitcoinsalvation.com/wp-content/uploads/2015/06/bitmine4.jpghttp://bitcoinsalvation.com/blog/2015/06/bitclub-new-mining-pool-coming-soon/Some more info from their own site;
https://bitclubnetwork.com/products.html