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  • The Kaplan turbines are driving two Fuji Electric generators with 50 MVA capacity each.
  • YES! But the amount of flow, size, pitch and design of the runner blades are adjusted to maximize the specific requirements for the dam, which usually results in 90% efficiency.
  • Thats right, it changes, power generation has peaks in the late spring and early summer as the snowpacks melt away.
  • oh, the Kaplan turbine is the one that looks similar to the propellers on a ship, right?
  • I see, so we want to keep the turbines moving. But that all depends on the weather?
  • Well, that's at optimal flow. Lucky Peak runs for longevity, rather than high power output. So not as much water flows through the turbine to reduce the stress on other components.
  • It turns out the efficiency of Lucky Peak is actually about 80%
  • The head is the elevation difference between the source of water, and the exit from the dam.
  • also, I included the loss of energy due to the friction of the pipes, as well as the energy gains from the head difference.
  • but I thought you said that those types of dams have about 90% efficiency?!
  • Also, another benefit is the fish are hardly impacted, compared to other dams. recreational benefits are huge too!
  • There is more than just power production going on, but flood prevention and irrigation regulating too. In November of 2021, USACE made it public that their updated risk rating of the dam went from “moderate” to “high” in regard to the Dam Safety Action Classification assessment.
  • Well, the rating is actually not due to the status of the dam, the dam is in very good condition. This rating is rather due to the impact on life IF failure of the dam would occur.
  • Okay grandpa, you have convinced me. I really need to open my perspective and learn about my surroundings.
  • I ... guess that makes me feel better?...
  • That sounds awful and dangerous!
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