Seek answers from people who are knowledgeable about hydropower stations.

The water level of 74.5 meters means that the water level of the river will rise to 74.5 meters. Let's split the sides. This estimate is a plan, right? If we say the resettlement cost, we can only say that the economic indicators of the power station are poor, and perhaps no one has invested in development.

"Three 50,000 kW bulb tubular units with total installed capacity 15mw", and the total installed capacity should be 150 MW.

Supplement: read another person's answer, read the question carefully, and understand your question. Are you asking that the water level will rise by 74.5 meters? The answer is no, the water level should rise to 74.5 meters, not 74.5 meters. The elevation in China is based on the average water level (0m) of the Yellow Sea for many years. If the current water level of the river where the power station is located is 50 meters, it can reach 74.5 meters only by rising 24.5 meters. ..

Concept: The elevation of water surface is called water level.