Operation of Turbines at Maximum Hydraulic Capacity Sample Clauses

Operation of Turbines at Maximum Hydraulic Capacity. Normally, the Project controls the operation of the turbines to stay within peak power production efficiencies for a given head and power output by regulating discharge. This operating procedure results in maximum conversion of turbine discharge into power output and also avoids undue stress on the turbines due to cavitation. However, the turbines can be operated to maximize water discharge for a given head while still preventing damage to the runners from cavitation. At full powerhouse operation, the difference between operation at peak efficiency for power production (204 kcfs) and peak hydraulic discharge capacity (212 kcfs) is approximately the equivalent of one-half the hydraulic capacity of one of the Project’s units 1-7. The additional hydraulic capacity gained by operating for peak hydraulic discharge could be used to avoid forced spill during the September – March period and to reduce forced spill in April – August on those occasions when total river flow approaches the 7Q10 discharge.
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