Posted on 05/10/2024 5:41:42 AM PDT by Jonty30
Two Korean research institutes are designing a space solar power satellite project with the aim of providing approximately 1000 TWh of electricity to the Earth per year. The 95 gigawatts of nuclear in the US generates 800 terawatt hours per year. Spaced based solar at 120 gigawatts would generate 1000 terawatt hours.
This is an improved proposed Korean Space Solar Power Satellite (K-SSPS) project. It is a conceptual design of the satellite, its end-of-life disposal method, and a first pilot system and experiment.
The proposed system would use 4,000 sub-solar arrays measuring 10 meters × 270 meters and comprising thin film roll-out, with a system power efficiency of 13.5%.
It is not derived from rigorous analyses but rather serves as system requirements for commercial viability.
The system will have a mass of 10,000 tons per 2 gigawatt module and transmit microwave at a frequency of 5.8 GHz to Earth via a 1.0 square kilometer antenna. The microwaves can be converted on the ground to usable electricity via rectennas, which are special receiving antennas that are used for converting electromagnetic energy into direct current (DC).
On the ground, the researchers propose to place 60 rectennas with a diameter of 4 km along the Korean Demilitarized Zone (DMZ). In that case, 60 satellites will have to correspond to the 60 rectennas. If each rectenna could generate 2 GW, the total power collected would be 120 GW.
(Excerpt) Read more at nextbigfuture.com ...
Microwave ovens are at 2.45GHZ. I don’t believe 5.8GHZ stimulates water molecules near as much but i wouldn’t want to stand under the beam.
Where will the shadows be casted?
Other than the ground, I don’t think there would be shadows. The satellites are probably not 4km in width, because the energy transmitted would widen as it went to the ground.
10,800sq meters of diminished solar energy reaching the Earth, casting a shadow of xx to the 10th sq kilometers.
Gee: Where’s the paper on the effects thereof?
Will the country(ies) affected have a say in this project???
Better (or worse): Is this how they plan on ‘selling’ the ‘solar shield’ concept to the public? Deception?
/s
That’s gonna take a very long extension cord.
We did a feasibility “study” of this at Raytheon about forty years ago. It seemed ... impractical ... Actually screwball. I believe our system beamed power down to a remote desert area in the Southwest. Now photovoltaics have come down considerably in price since 1984, but not nearly that much.
I wonder if the total energy generated would ever exceed the energy generated by the fuel to orbit the array.
But it would be “Green”. I say it’s a death ray to fry Kim.
Gott a be a lot of loss in those conversions
I could be wrong, but I think the conversion loss has been accounted for in the 13.5% efficiency rate.
Will kill millions on millions of birds, bats, and beneficial insects. Any misalignment caused for any reason will destroy who knows how many miles of the country and fry its citizens.
If they do it, we will see. It will be interesting.
Another science fantasy that will never happen.
More bad tech.
How about a cloud — H2O is what heats up in a micro oven. Will this frequency do the same?
Aaaaaan, what happens when the satellite transmitter is hacked and aimed elsewhere?
Love the idea of developing the tech. But, implementation is gonna be as bad as Solyndra.
Not a new proposal, just a different country. Stupid idea that looks good as long as you do not look too closely.
I’m glad you put ‘Green’ in quotation marks. Such a system is a true global warming device, albeit on a inconsequential scale. Ironically it would collect solar radiation, which would normally miss the earth and convert a portion of that power into radiation incident on the earth. Such subtleties are missed by those who feign concern for the environment.
1. “Research “green scam”
2. “Taxpayer money required”
3. ?
4. Profit.
That is a HUGE mass to eventually crash into the planet.
The arrays could be placed so as to cast minimal shadows on earth. The moon orbits the earth, but rarely casts any shadow on it. When it does, it’s a big deal called an eclipse. If you were really clever you could arrange it so that the orbits precess by 360 degrees per year and never cast a shadow on earth. (But then they would only see the target area about 12 hours a day.)
What if the thing in space becomes unstable and the aim becomes random? And it could start roaming the skies around the world blasting random cities. The potential for disaster is pretty high.
With you for sure. Here in San Jose CA a group of con men almost convinced the city council that a set up of speakers could be posted along the freeway and could cancel vehicle noise by inverting the sound waves and sending them back at the traffic. I don’t know how but this foray into the world of Si Fi got stopped before they got ahold of the taxpayer’s money.
So Korea should have engineers who can stop this ploy.
Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.