Wave Power In Canada

Wave Power In Canada


When we think of renewable energy, we usually think of solar, wind, hydro power or geothermal. However, one of the world's largest and
mostly unexploited sources of renewable energy is in our oceans. According to the International Energy Agency | Implementing Agreement
on Ocean Energy Systems (IEA-OES)1, energy can be extracted from the ocean in five ways:

• Tides
• Waves
• Tidal (Marine) Current
• Thermal Gradient
• Salinity

Gradient Tides have been used in many countries, including Canada, by building barrages across inlets or estuaries and using standard hydropower techniques to generate electricity. Waves are estimated to contain the largest amount of ocean energy worldwide, and will be
the subject of this report. Tidal (Marine) Currents are naturally occurring flows of ocean water, usually around islands, caused by tidal fluctuations. Both Tides and Tidal Currents are the subject of another report. Extracting energy from the oceans natural Thermal Gradients
is in the advanced stage of R&D, while harnessing power from the Salinity Gradient is at an early stage of development.

Vern L. Buchholz began his professional career in 1970 designing television systems for scientific applications at the University of British Columbia. He joined BC Hydro's Transmission Engineering Group in 1981 and moved to BC Hydro's R&D Division, now Powertech Labs, in
1984. His projects included work on electrical cables and cable accessories, grounding apparatus, electrical connectors, switchgear,
batteries, and lighting equipment. He was the Director of Electrical Technologies at Powertech Labs from 1994 to his retirement in 2006. He
is a Professional Engineer registered in the Province of BC, and a Fellow of Engineers Canada. He is a Senior Member of the IEEE, and very
active in the Insulated Conductors Committee of the PES. He presently works as an electrical and renewable energy consultant for the
Canadian Copper & Brass Development Association.


Contents


> Canada's Potential for Ocean Wave Energy

> The Challenges of Ocean Wave Energy

> Designing Ocean Wave Energy Converters

> Hydrodynamic Systems

> Power Take-Off Methods

> Copper Provides Value in a Wave Energy Converter

> Ocean Wave Energy in Canada - Where it Now Stands

> References