Could waves become the next big renewable energy source?

(CNN)The force of crashing waves can generate huge amounts of energy.

But there’s a catch: how do you develop technology that can withstand the sea’s harsh environment with minimum disruption to the ecosystem?
One Israeli-based company, Yam Pro Energy — believes it can offer the ideal solution and is set to build a wave-energy plant on the coastline of Accra, Ghana’s capital city.
Wave technology is an endeavor that has recently been trying to catch up with the likes of solar and wind energy.
It exploits a resource — the oceans — that covers 71 per cent of our planet, it’s environmentally friendly, mostly cost-free once set up and it could be revolutionary to coastal countries.
“There’s so many wave power companies and as many different devices, so finding one that actually works best is trial and error,” said Mark Jacobson, who is a Stanford University professor and director at The Solutions Project, a company which aims to help the world move to 100% renewable energy.
However, Yam Pro Energy says its innovative technology is the “best choice in renewable energy systems.”

The

Compared to other devices — like buoys — which can become destroyed and sink in rough seas, Yam Pro Energy’s patent is more efficient, it says.
“We don’t have to send scuba divers or boats out. All the maintenance is from the land, so we just put floaters up and you (can) do whatever you need to do (then) put them back down.”
The company prides itself on providing renewable energy that’s clean and affordable in an environmentally responsible way. But Greenpeace’s UK Chief Scientist and Policy Director, Doug Parr told CNN that while it supported wave power, checks needed to be in place to ensure the technology doesn’t impact wildlife.
“No source of power has zero impact on the environment,” he said, adding that assessments need to be made to “judge whether the clean energy benefits are justified.”

Future predictions

Jacobson, from The Solutions Project, supported the development of wave technology in Ghana, but said that its growth won’t be as rapid as solar and wind. “While there’s a reasonable resource of wave power to exploit, if you’re comparing it to other technologies it’s just not going to be penetrating as much,” he said.
Instead, it will compliment other renewable energy technologies. “It’s definitely worthwhile doing … We should invest (in it) as much as we can.”
The Solutions Project predicts that if the world can transition to 100% clean, renewable energy by 2050, Ghanaian wave energy will account for 1.4 per cent of it.
And while that may seem small, Jacobson insisted it wasn’t. “The amount of energy worldwide is enormous. So something that is large is actually small in comparison to the power demand worldwide.”
He said there was “no downside” in transitioning into a world which only uses renewable energy.
“These countries can become more energy independent. There’s less risk of conflict, less terrorism because there’s fewer centralized plants and you solve the climate problem simultaneously.”
IRENA’s Taibi was more optimistic. He said that while the growth of wave power has been gradual, it was only “a matter of time” before it became the “sixth pillar” of renewable energy that will become commercialized.
“The good news is there’s quite a lot of innovation coming from different approaches to the same resource.”

Read more: http://www.cnn.com/2016/12/12/africa/ghana-wave-energy/index.html

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