It is estimated that the electric energy produced in the United States by the utilization of water powers every year equals the power product of forty million tons of coal, or about one-tenth of the coal which is consumed in the production of steam.
(the electric energy; produced; L:in the United States; by the utilization of water powers) (the coal; is consumed; L:in the production of steam)
the electric energy the coal
produced is consumed
L:in the United States by the utilization of water powers
L:in the production of steam