"A machine like Titan has a budget of around 10 megawatts, and that costs roughly $10m per year just for the electricity, so people are concerned about the electrical bills," said Mr Scott.
"They are also concerned about how much power they can provide to their facility as there is a limited amount of power you can get from the utilities.
"Oak Ridge is probably the best site in the world at providing additional power, but a lot of other centres are limited in their power and cooling infrastructure and so for them their facilities do constrain the amount of performance that they can get."
