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 …
Category: Hydrokinetics
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
Waterlily Turbine Charges the Cellphones of the True Morons Out There
I don’t think I know anyone stupid enough to pay $160 for a device that requires a gushing stream or a stiff, steady breeze (and the time to position it properly) to do the job performed by a $25 piece …
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Concept in Ocean Wave Energy
Here’s a video depicting one of variations on the theme of extracting energy from ocean waves. Though I’ve seen countless numbers, I haven’t studied each of the variants thoroughly, so it’s only a guess when I say that this seems …
Renewable Energy Comes to Nepal–But It’s Not the Variety You’d Imagine
We’ve all had the experience of reading something from a reliable source and wondering how it could possibly be true. Here’s an article from the Asian Development Bank that heralds the electrification of a village in Nepal with wind and solar.
Tagged with: Renewable Energy Comes to Nepal
