Is using hydroelectric power expensive or cheap?

Answer 1

There is usually a large one off initial capital outlay, for example to build a dam. After that the electricity produced is almost zero cost

You will usually be sued also, but it is too clean to turn down.

Answer 2

The cost of using hydroelectric power can vary depending on factors such as location, size of the plant, and maintenance costs. Generally, once built, hydroelectric power plants have low operational costs and can be cost-effective in the long term compared to fossil fuel-based power plants. However, the initial investment for constructing hydroelectric facilities can be high.