• Power is equal to energy divided by time.
• The energy of a glacier is its kinetic energy which is expressed as K = ½ mv^2 where m is the mass of the glacier and v is the average velocity.

Using the Llewellyn glacier as an example:

• m = volume times density of ice (918kg/meters cubed)
• m = 70,000,000m^3 x 918 = 64260000000kg
• K = (.5)(64260000000kg)(.00000277m/s)^2 = .2479joules
• P = K/t = .2479joules/1sec = .2479 watts

This can be compared to something more tangible such as a caterpillar D-10 dozer which puts out 580 Hp which is equivalent to .7775 watts.

(www.caterpillar.com)

• If a glacier take 100,000 years to create a large glacier valley this would be 781777440000 watts of power.
• It would take a single caterpillar D-10 31,885 years to produce this much energy.

(www.caterpillar.com)