[Sherman Logan]

Wonder how much energy is used pumping water up a mile versus heating surface water about 100 degrees.

[from occupied ga]

Scientists hope the £900,000 project will result in water at a temperature of about 80C (176F) being pumped out.

Wonder how much energy is used pumping water up a mile versus heating surface water about 100 degrees

Me too. I'm thinking that this is going to be some really expensive hot water.

[loungitude]

Wonder how much energy is used pumping water up a mile versus heating surface water about 100 degrees.

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Think manometer. Only need to overcome friction loss.

[USFRIENDINVICTORIA]

You could work it out yourself, with one of the handy on-line energy unit converters — such as this one:

http://www.unitconversion.org/

By my calculations, in this case, pumping the hot water up 6,200 feet uses about 1/15 th of the energy that heating surface water 100 degrees F would require. IOW, this could be a good deal.

I know of several communities in northern Canada, that use deep geothermal wells to heat their municipal water supply. (They need to do that in the winter, to keep it from freezing up, in the pipelines.)