Tidal energy at a glance

What is tidal energy?

It’s one of the oldest forms of energy — in fact there are tide mills that are known to date back to 787 A.D. according to the Ocean Energy Council.

Tidal power – it’s a type of hydropower and simply put, it converts the energy from waves into electricity.

According to the Ocean Energy Council, today most tidal projects use a dam with hydraulic turbines. A tidal range of at least 7 meters is required for the turbines to work.

Where can tidal energy be found?

The waters of the Pacific Northwest are considered ideal for tidal power – namely Alaska, British Columbia Washington. On the east coast, Maine is considered a strong contender.

Did you know?

The world’s first tidal power station, located on the Rance River in Brittany France, opened in 1966.

How do tidal energy projects impact the environment?

Tidal energy is a renewable source of electricity and does not result in any greenhouse gas emissions. But according to the Ocean Energy Council and others changing the tidal flows by damming a bay or estuary could result in negative impacts on aquatic life and shoreline ecosystems. Every site will have its own unique considerations.

Is tidal energy economical?

Despite being around for such a long time, tidal power is considered expensive with a long construction period. These factors pose a barrier to increasing the number of projects worldwide.

Did you know?

Tides are considered more predictable than wind energy or solar power. Although predictable, gravity and the lunar cycle both impact tides and tidal power.

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