In particular, hydro dams and transmission lines have significant effects on water and biodiversity.

A hydro electric dam began operating at the falls south of Cobden.

Large hydro dams can control floods, which would otherwise affect people living downstream of the project.

Better batteries would allow automobiles to run acceptable distances on electricity produced from clean sources like solar cells or hydro dams.

The power from the hydro dam is used to start one of the coal-fired base load plants.

It's a much neater solution than building hydro dams everywhere and flooding valleys.

Then we began to build the big hydro dams up in the mountains.

The hydro dam went in 2003 in service, generating 20 MW.

An investigation carried out shortly after the transaction showed that the hydro dam was built within the borders of the national park.

The ruins of an old hydro electric dam are situated just north of Dundas and a park is located by the river.