[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.)

[Sherman Logan]

Thanks for running the numbers. Too lazy to do it myself.

I am aware of the unusually high specific heat of water. IOW, it takes a whole bunch of energy to raise or lower the temperature of water.

BTW, there have been a number of movies based on the notion of deep drilling. Few turned out well.

[squarebarb]

That’s very interesting. Which communities? Does the hot water itself heat the buildings?