Discussion on “plant efficiency — an analysis of the losses of a hydroelectric system” (Ross), Portland, Ore., April 18, 1912. (see proceedings for May, 1912)

Gano Dunn: It is startling indeed to see the resulting efficiencies so carefully and accurately computed as have been computed in this paper, and it is also startling to see a considerable difference in the amount of this total efficiency from what probably it would have been given in the prospectus of a hydroelectric company had this company been in the course of financing instead of in actual operation. In one table there are given certain efficiencies of impulse units and certain turbine units, and both seem considerably low. If I understand Mr. Ross' use of the figures right, these statistics indicate lower than full load efficiencies. Am I right, Mr. Ross?