Discussion on “the combined operation of steam and hydraulic power in the Pennsylvania water and power company system” (Walls), and “supplemental power for hydroelectric systems” (Vaughan), Philadelphia, Pa., October 11, 1915.

A. S. Loizeaux: The Consolidated Gas, Electric Light and Power Company of Baltimore began taking power from the Pennsylvania Water and Power Company on October 1st, 1910, the contract calling for delivery of not less than 70 million kw-hr. during the first year, with the demand of 13,333 kw. That figure is obtained by taking two-thirds of the peak load on the station, which was 20 thousand at that time. The contract provided for an increase of energy in following years, but not to exceed 105 million kw-hr. per year. A demonstration of the effect which Mr. Walls notes, that the development of water power exceeded the original contract provisions, is found in the fact that the consumption of the gas and electric company for 1915 will be about 165 million kw-hr., a quantity 57 per cent greater than the maximum originally provided for.