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(AC or DC), and are rated from fractional horsepower through thousands of horsepower.
DC generators usually are less expensive but alternating current can be transmitted over greater distances without undue loss and with smaller wires. Annual maintenance is minimal, according to RLEP.
Leffel Company engineers need the following data to determine the best system for individual homeowners:
—the vertical distance in feet from the highest usable water surface (i.e. top of falls
88.0%