Technology Collaboration Programme by IEA
How does Hydropower work?

Generating hydroelectricity starts with the annual hydrologic, or water cycle, providing seasonal rain and runoff from snow pack. The runoff from rain and snow collects in lakes, streams and rivers and flows to dams downstream. The water funnels through a dam, into a powerhouse and turns a large wheel called a turbine. The turbine turns a shaft that rotates a series of magnets past copper coils in a generator to create electricity.
The water then returns to the river. From the powerhouse, transmission lines carry electricity to communities.

What is Hydropower History?

Generating hydroelectricity starts with the annual hydrologic, or water cycle, providing seasonal rain and runoff from snow pack. The runoff from rain and snow collects in lakes, streams and rivers and flows to dams downstream. The water funnels through a dam, into a powerhouse and turns a large wheel called a turbine. The turbine turns a shaft that rotates a series of magnets past copper coils in a generator to create electricity.
The water then returns to the river. From the powerhouse, transmission lines carry electricity to communities.

How is power generated?

Generating hydroelectricity starts with the annual hydrologic, or water cycle, providing seasonal rain and runoff from snow pack. The runoff from rain and snow collects in lakes, streams and rivers and flows to dams downstream. The water funnels through a dam, into a powerhouse and turns a large wheel called a turbine. The turbine turns a shaft that rotates a series of magnets past copper coils in a generator to create electricity.
The water then returns to the river. From the powerhouse, transmission lines carry electricity to communities.

How much power is created from one generator in one day?

Generating hydroelectricity starts with the annual hydrologic, or water cycle, providing seasonal rain and runoff from snow pack. The runoff from rain and snow collects in lakes, streams and rivers and flows to dams downstream. The water funnels through a dam, into a powerhouse and turns a large wheel called a turbine. The turbine turns a shaft that rotates a series of magnets past copper coils in a generator to create electricity.
The water then returns to the river. From the powerhouse, transmission lines carry electricity to communities.

How many houses can this provide power to?

Generating hydroelectricity starts with the annual hydrologic, or water cycle, providing seasonal rain and runoff from snow pack. The runoff from rain and snow collects in lakes, streams and rivers and flows to dams downstream. The water funnels through a dam, into a powerhouse and turns a large wheel called a turbine. The turbine turns a shaft that rotates a series of magnets past copper coils in a generator to create electricity.
The water then returns to the river. From the powerhouse, transmission lines carry electricity to communities.

What are the advantages and disadvantages of Hydroelectric Power Systems?

Generating hydroelectricity starts with the annual hydrologic, or water cycle, providing seasonal rain and runoff from snow pack. The runoff from rain and snow collects in lakes, streams and rivers and flows to dams downstream. The water funnels through a dam, into a powerhouse and turns a large wheel called a turbine. The turbine turns a shaft that rotates a series of magnets past copper coils in a generator to create electricity.
The water then returns to the river. From the powerhouse, transmission lines carry electricity to communities.

What is required to set up a small Hydro installation?

Generating hydroelectricity starts with the annual hydrologic, or water cycle, providing seasonal rain and runoff from snow pack. The runoff from rain and snow collects in lakes, streams and rivers and flows to dams downstream. The water funnels through a dam, into a powerhouse and turns a large wheel called a turbine. The turbine turns a shaft that rotates a series of magnets past copper coils in a generator to create electricity.
The water then returns to the river. From the powerhouse, transmission lines carry electricity to communities.