Erneuerbare Energien
Erneuerbare Energien

How a wave carpet could turn our ocean into a giant power plant

With 70 percent of Earth’s surface covered by the ocean, its perpetual waves are among the most underutilized sources of renewable energy. This is due to many challenges in capturing its wave energy, one of which is the lack of cheap, durable and reliable technology.

There are more than 1,000 patented devices that harness energy from oceanic waves, but most designs are buoys and turbines that float near the ocean’s surface, which make them disruptive to wildlife, fishing operations and shipping channels. They’re also very expensive.

Reza Alam, UC Berkeley assistant professor of mechanical engineering, and his team developed a cheap, non-corrosive energy harvesting technology named “Wave Carpet” that is submerged underwater and adopts the wave motion of the ocean. 

The motion then moves the attached pumps to produce hydraulic pressure that can be converted into power.

Based on early experiments in tanks, the system can absorb over 90 percent of incoming wave energy. 

Since the carpet sits on the sea floor, it doesn’t create problems that are common in other wave energy technologies — making them safer and more “survivable.” 

Compared to wind and solar energy, wave energy is still decades behind in the development, but in the past several years, the U.S. government has invested more in advancing the technology. 

Alam and his team will be joining nine other teams as finalists in a competition sponsored by the Department of Energy, where teams will present wave energy converter devices that could jump-start the next wave of clean energy technology.

Druckversion Druckversion | Sitemap
Idee und Umsetzung dieser Website durch mich: Georg Schoener - Herkenratherstr.11 - 53819 Neunkirchen-Seelscheid - Deutschland