DULUTH’S BIG POWER PLANT
Dynamos of 10,000-horsepower, with twenty-five per cent. overload, operated by water wheels of 12,500 horsepower, are what the Great Northern Power company, of Duluth, Minn., is preparing to install. These are double the size of any dynamos in use in any waterpower on this continent, and are about the same as those to be installed at Niagara in the new part of the cataract work. Three or four of these dynamos will be the initial installation, to be followed by others as power consumers require, till the 150,000 horsepower available is utilised. A fall of more than 350 feet, vertical, is secured above the wheels by bringing the water down a steep hill in a pipe. Slight dams for storage, a canal two miles long, a steel gravity dam forty feet high, lead to the pipe. Below the water weir are rapids, and in a mile or more distance is an additional fall of seventy feet. The main power plant will furnish energy for many industries at Duluth, and probably for a score of iron mines on the Mesaba range. The steel corporation alone has twenty miles in operation on the Mesaba range for which coal is now brought from Ohio. Electro-chemical industries will also utilise this power, which is to be brought by wire into a transforming and transmitting station at .Duluth. The distance is but ten miles, while to the most distant Mesaba mines it is only sixty miles from the power plant.
Dynamos of 10,000-horsepower, with twenty-five per cent. overload, operated by water wheels of 12,500 horsepower, are what the Great Northern Power company, of Duluth, Minn., is preparing to install. These are double the size of any dynamos in use in any waterpower on this continent, and are about the same as those to be installed at Niagara in the new part of the cataract work. Three or four of these dynamos will be the initial installation, to be followed by others as power consumers require, till the 150,000 horsepower available is utilised. A fall of more than 350 feet, vertical, is secured above the wheels by bringing the water down a steep hill in a pipe. Slight dams for storage, a canal two miles long, a steel gravity dam forty feet high, lead to the pipe. Below the water weir are rapids, and in a mile or more distance is an additional fall of seventy feet. The main power plant will furnish energy for many industries at Duluth, and probably for a score of iron mines on the Mesaba range. The steel corporation alone has twenty miles in operation on the Mesaba range for which coal is now brought from Ohio. Electro-chemical industries will also utilise this power, which is to be brought by wire into a transforming and transmitting station at .Duluth. The distance is but ten miles, while to the most distant Mesaba mines it is only sixty miles from the power plant.
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