Discussion in 'Energy' started by Weatherman2020, Jun 8, 2018.
Wind and solar are now the cheapest new source of electricity.
The rivers and oceans do not flow fast enough to generate power. You generate electricity by restricting the flow of the river or ocean through dams. Low level dams simply cannot generate electricity. Have you ever looked at a hydroelectric dam? It is very tall! Why? It has to be!
Want the physics behind it?
Check out this website:
How Much Dam Energy Can We Get? | Do the Math
Little Trumpsters seem to love to step backwards, whenever the opportunities arise.
This thread is just another example of their backwards thinking..
Suck coal Neanderthals, suck coal!
Also there is the little matter of geological hazards. Certain types of rock will not stand up to water under pressure. Like rhyolite, gypsum. Then there is the matter of valleys that are over faults. If the fault has a rubble zone, then the water under pressure will excavate that zone and collapse the dam. And, in a valley with an unstable mountain side bordering it, the dam can hold, but the water slop right over the top and take out towns below. Ask the Italians about that hazard.
All energy sources should be explored and invested in if they show real promise. Diversification is smart.
Portraying emerging technology as a dead end and waste of money just because it isn't perfect or the most cost effective immediately is short sighted and idiotic.
Your link is 7 years old. You don't have to build a 200' tall dam to restrict river flow....you can simply build narrow channels every 3 miles or so that can easily spin a turbine with proper gearing. The space between the channels give the river fish, crabs, turtles, etc enough calm water to stay healthy and a hell of a ride if they want to shoot the pipeline. With hundreds of these turbines spinning, the accumulated electricity would be significant. I never heard of anybody damming an ocean. Ocean tides are totally predictable and flow in both directions. If you've ever stood waste deep in the Atlantic you'd know how strong the undertow can be.....more than strong enough to spin a series of hundreds of paddle wheels in key locations up and down the east and west coasts and the Great Lakes. No batteries, no pollution, no environmental impact of any significance. Even the argument that only the coastal states could benefit is silly.....look at where the major population centers are.
Ever heard of the Salt River Project, dumbass?
Do you know why these projects have not been built? They don't work as well as you think they do. The age of the website does not change the laws of physics. You didn't read the link!
I read your link...didn't agree with it....7 year old conventional thinking from a pro-solar nobody. These projects haven't been built because solar and wind were promoted by the Kenyan idiot who wasted our money on the junk science of Gorebal warming, while doing nothing about China and it's slave labor selling solar panels below-cost to crush any American attempt to compete. There have been several hydro pilot-projects proving it's viability and it's blood simple....get water moving and it will spin a wheel.
I am sorry that you have not had the education needed to understand the laws of physics. A river flowing at a leisurely 2mph does not have enough energy to produce electricity. All the numbers were in that link.
To produce electricity on my ship, we raised the pressure of the steam to 1200 psi to turn turbine blades to produce electricity. You think you can produce that energy from a river flowing slowly down hill over hundreds and thousands of miles. It just doesn't work like that! The water in your typical hydroelectric dam moves like your car at highway speeds.
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