Caltech professor and inventor Ali Hajimiri has a reputation for defying conventional wisdom and turning science fiction into reality. His latest and boldest project to date is wireless power transfer, and it could change the way we power our lives.
Video by Matt Goldman
Game Changers is a three-part series about some of the world's most determined and hard-working visionaries who are on the verge of becoming household names.
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So, somehow, it makes more sense to buy a 100$ 2kg solar panel, put it into space for for ~6.000$, install it around a long range transmitting system (??$) that will have some efficiency losses, with the work of 10+ engineers and scientists, then to just buy 3 panels for 300$ and and have them installed by a single electrician on a spot of the 99.99% surface of the Earth that does not already have solar panels on it.
Same amount of power produced, one cost 300$ + 1 electrician hour, other costs 6.100$ + ??$ + 20+ engineer / scientist hours.
Oh by the way: The ~6.000$ launch cost for 2 kg ( Falcon 9 reusable configuration) goes up to ~10.000$ if you disclude ventures of Elon, and go with the second cheapest option currently available. Just saying on your comment "If there is anyone out there who could steer the thrust of technology from its own demise, and toward the betterment of humanity" - there a lot of people actively doing that, and this guy might be amongst them, but he needs to not just imagine and make "cool tech stuff", but also make it in a way that it practically and economically makes sense to be anywhere near of the frontier.
Let's assume crazy 90% conversion on send and receive laser. Now tell me how much will be lost in the 60km of air moisture and clouds? And then tell me the plan how to convince goverments to allow such powerful laser in orbit.. That can "miss" the receiver too..
Elon owns both a solar power company and a rocket company, both making the most cheapest _and_ advanced products within their industries. You'd think he would be the first to jump on this idea if it were actually feasible... Duh...
who cares if energy gathering is more efficient in space when you need 9 pounds of Rocket fuel for every pound you send up... just use the money you save by not going to space to build a bigger array on earth. Otherwise you really need to send something that can produce these into space and produce them there before the proper scale can be achieved.
You know what's funny is that if you don't see the benefit of this idea then what. Think about it Einstein said it E = MC2 which allows light to be captured at any given speed. Nikola Tesla already had a system in place for energy transmission using the earth as the conductor. It doesn't matter how fast you go in space or not light will always catch up and energy will always be there. Put a solar panel on or in your car to charge your phone you'll still get energy. And by the way elon may own a rocket that is powered by fuel and owns a car company powered by batteries why waste your time with fuel. You can create a turbine powered rocket or a mag rail gun rocket that spins.
I think if they used the energy in space, that may make more sense, instead of costly beaming and transferring to facilities on Earth. For instance, the space station, junk clean up, surface mining on the moon, and much more!
Musk is not a scientist, he is not an engineer. He is simple salesman who must maintain his "superior" reputation. Mr. Ali , most likely, works on PhD program or some kind of military grant. Time will show, but so far.. the stupidest idea is Flight to Mars of Humans and Batteries for home.
elon thinks 800 mph vaccum trains that travel hundres of miles can be built for a billion doallars but space based solar power? thats the stupidest thing ever. i think people will soon find out that support for elon musk was the stupidest thing ever. he is a fraud. literally. he lied to investors about telsa production numbers.
I say why solar?? Blasting solar panels to space is a lot of very rare minerals. We could set up a wind farm on Antarctica, catch up that Katabatic soup with some copper and magnets, and beam it via satellite network around the world, damned be the diminishing effects of so many conversions,, it will allow for short term high energy demands to be met without huge temporary infrastructure. A glorified mobile solar panel and you can soak up terawatts for a one time activity.
I wish him the best, but Musk is right. The more you convert energy, and the farther you send it, the less you get in the end. Having your solar panels right where you're using electricity makes a million times more sense.
Installing solar panels on earth is much more efficient. It would cost a heck lot to set a satellite on geostationary orbit that produces megawatts from solar power. Even bigger problem, sending wireless energy from orbit is really inefficient
Space solar energy transferred wirelessly wastes almost completely all of the energy in the transfer process. That's why that's the dumbest idea I've heard. We don't have to get on a rocket or satellite to get solar power. The sun actually reaches the Earth. Taxpayer funded science should benefit taxpayers - public funds are not meant to indulge a scientist's childish wants like this
This sounds like selling a dollar for a nickel. People that fund this crap, lack the understanding to describe the problem accurately. In order to do this, the system would have to transfer power more efficiently then current systems, most grids are 33% efficient. Then, do so at any distance, eliminating the inverse square rule, a law of physics by the way.
Throw a penny in the water and tell me how much power that wave has 100 ft away? Even with a phased array of pennys, we all know the answer is basically zero at the kinds of distance these guys are talking about.
Dollars per kilowatt hour, fully amortized, including the cost of storage in the case of terrestrial solar. That's the comparison, and that's the main (but not the only) problem with space-based solar.
The wireless transmission is not as simple as this man trying to prove inside a room, there will be deflections and distance with weather playing the key factor is well but it looks different so let's be hopeful and see how much he delivers
Musk probably admires the work of this scientist, he only said that the technology is not market ready. And i agree with Musk on this, there are still many technical challenges to solve before even bothering with the costs. I didn't get this opposition that the video presents.
Regardless of the title, it is amazing to see how people are out there solving things and the work they put in. Pretty cool video showcasing some other people out there developing technology. Just amazing, these people are at another level.
Ok lets not be Russia here, I am tired of hearing Russian tech that is still in a blueprint mode, or yet to be brought to the actual product. Do us a favor and come back to us when you have the actual product that works, best of wishes.
We live in a burden of energy system. But we have to pay high cost for that because oil tycoons and political systems are dictatoring and control engergy. the world now need some kind of energy revolution.