Here are excerpts from the article linked below that attempts to answer the question posed above. After each, I’ll add my own comments. Article: Why has wave power lagged behind other renewable energy sources?
Category: Hydrokinetics
Concept in Ocean Wave Energy
Here’s a concept in ocean wave energy that is explained in a short video. Here’s the problem these guys are going to run into: they share a widely held misunderstanding that water in waves moves in the direction of the …
Hydrokinetics Ideas Everywhere, But Do They Hold Water?
Here’s an ocean wave power device that captures energy from the relative motion of their two arms as the wave passes them. According to the company that developed the product, Crestwing, they plan to sell it to energy production companies …
Hydrokinetics Ideas Everywhere, But Do They Hold Water? Read More »
There’s a Market for Almost Anything
Here’s a micro-hydrokinetic device, sold to campers who wish to charge their cell phones. Problem: it’s heavier, more cumbersome to set up, far more expensive than the equivalent piece of solar PV or a hand crank, and requires running water …
These Water Pipes Generate Electricity
As suggested here, installing turbines into large city pipes that transport water via the flow of gravity is a solid idea underneath the broad heading of hydrokinetics. Of course, there are caveats:
Wave Energy Concept
The video below presents a device to capture energy in ocean waves that consists of a tube under the water, open at both ends, and using the water that oscillates back and forth inside the tube to drive a turbine.
Hydroelectricity for the Home
One comes across lots of videos like this that sugarcoat the process of generating energy for the home.
Run-of-River Hydrokinetics
It’s sad to see that run-of-river hydro hasn’t taken off, since it’s such an elegant way to extract the kinetic energy from moving water; such an approach has very little impact to aquatic life, and raises few other environmental concerns.
2GreenEnergy: Keeping It Honest and Straight
To clarify matters, I thought I’d respond to two recent comments from attack-dog MarcoPolo, who writes: It would be more honest if would admit your pecuniary relationship with the technologies you write about. and
Concept in Wave Energy
I just received a note from a reader, asking me to check out his concept in wave energy. As a prelude, he offered the video below, which examines the validity of the overall concept of extracting energy from the motion …
Tagged with: wave energy
