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Large solar powered megayacht

Home Forums Community General Chat Large solar powered megayacht

This topic contains 7 replies, has 5 voices, and was last updated by Avatar of Jeff-Chan Jeff-Chan 4 years, 5 months ago.

Viewing 8 posts - 1 through 8 (of 8 total)
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  • #1198
    Avatar of bencoder
    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
    Avatar of Altaica
    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
    Avatar of Carl-Pålsson
    Carl-Pålsson
    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.

    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
    Avatar of libertariandoc
    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.

    +++++++++++++++++++++++++++++++++++++++++++++++++++++++

    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
    Avatar of libertariandoc
    libertariandoc
    Participant

    Altaica wrote:

    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.

    [/quote]

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

    +++++++++++++++++++++++++++++++++++++++++++++++++++++++

    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
    Avatar of Carl-Pålsson
    Carl-Pålsson
    Participant

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

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

    #9663
    Avatar of Altaica
    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
    Avatar of Jeff-Chan
    Jeff-Chan
    Participant

    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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