you'd have the following costs for electricity:...
if it's done right, cloud could be a great thing. However, it needs 100% usability, and that doesn't come cheap, it's a lot of work... where one miner may wish to mine with hardware themselves and pay electricity at home/location, another may wish to mine on a cloud and pay the maintenance which is inevitably going to come with that - but either way, you still fund the electric costs, do you not?
Here's some quotes from Guy:
Home mining is not going to be around much longer though. The big mining farms are making it so you cannot compete or get ROI. Whether we like it or not mining is moving to the cloud. There will still be some home miners, but not many and most will be in the cloud.
We believe that 2015 will be all about mining contracts. Mining contracts backed up by real hardware.
I agree with Guy.
the only advantage I see of cloud mining is that anyone can have as much hash-power as their funds can afford without the worry about keeping within the limited power draw for their mining place. Just because you are mining on a cloud contract, does in no way negate the electricity costs.
I'm content to mine at home/data-unit and stay within my limitations.