Large solar powered megayacht

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This topic contains 7 replies, has 5 voices, and was last updated by  Anonymous 5 years, 8 months ago.

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• #1198

bencoder
Participant

http://www.thelocal.de/sci-tech/20100222-25421.html

It looks nice. Expensive but would allow you to stay out there with a bit less reliance on the outside world.

#9650

Altaica
Participant

NS Savannah

bencoder wrote:
It looks nice. Expensive but would allow you to stay out there with a bit less reliance on the outside world.

#9654

Anonymous

bencoder wrote:

http://www.thelocal.de/sci-tech/20100222-25421.html

It looks nice. Expensive but would allow you to stay out there with a bit less reliance on the outside world.

Just putting some solar panels on a used ship is one way to achieve station keeping (ie propulsion just fast enough to counter currents and wind).

It wouldn’t be optimized for speed obviously, but if you only need a knot or so it probably needn’t be very expensive. Put an efficient propeller on an electric motor and you’re done. No need to mess around with anchors in deep waters.

Here’s a back-of-the-envelope calculation:

Buy this at 4.6 million USD: http://commercial.apolloduck.com/feature.phtml?id=133679

The ad says it has a 3300 kW engine but it is probably 33000 kW. Let’s assume the top speed with this power is 20 knots.

Drag is equal to speed squared. The square root of 33000 is 182. We want a PV-powered speed of 2 knots. 182 / 10 = 18. 18 squared is 324. We need 384 kW of PV power.

One watt of PV is around a dollar I think. So the panels would cost 384000 USD. Let’s say 500k with the motors and propellers and other miscellaneous stuff. A bit over 5 million all told for a dynamically-positioned container house seastead.

That’s all you need really. Everything else that people need for their lives or businesses, let them import or produce it for themselves or each other as they see fit. Auction out the container spaces on Ebay.

Engineers or physicists are welcome to torpedo my energy calculations above, of course :-).

#9655

libertariandoc
Participant

bencoder wrote:

http://www.thelocal.de/sci-tech/20100222-25421.html

It looks nice. Expensive but would allow you to stay out there with a bit less reliance on the outside world.

LOL, I’ve sailed aroudn the N. Atlantic (both sides, and the middle) a bit….Solar? I hope they’ve got a good auxiliary.

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I won’t be wronged. I won’t be insulted. I won’t be laid a-hand on. I don’t do these things to other people, and I require the same from them.

#9657

libertariandoc
Participant

Altaica wrote:
bencoder wrote:

It looks nice. Expensive but would allow you to stay out there with a bit less reliance on the outside world.

[/quote]

That’d be the way to do it….but with a modern reactor (GenIV) and a hull shape maximized for cargo.

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I won’t be wronged. I won’t be insulted. I won’t be laid a-hand on. I don’t do these things to other people, and I require the same from them.

#9662

Anonymous

The CEO of the worlds largest shipping company advocates nuclear shipping.

http://nextbigfuture.com/2009/12/china-cosco-ceo-seriously-considering.html

#9663

Altaica
Participant
libertariandoc wrote:
That’d be the way to do it….but with a modern reactor (GenIV) and a hull shape maximized for cargo.

The uranium fuel cycle is banned (technically it’s only the back end of the cycle that’s ban. but you don’t want UN regulators and Environmentalist constantly interfering with)

Οὐκ﻿ ἐμεῦ ἀλλὰ τοῦ λόγου ἀκούσαντας ὁμολογέειν σοφόν ἐστι, ἓν πάντα εἶναι.

#9730

Anonymous

libertariandoc wrote:
LOL, I’ve sailed aroudn the N. Atlantic (both sides, and the middle) a bit….Solar? I hope they’ve got a good auxiliary.

Presumably it has a backup generator, but the quoted average speed is 8 knots cruising near the equator. How does that compare to the average speed of a sailing yacht?

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