[Public-List] Electricity Consumption

[Bill Wallace via Public-List]

Consider using one of the fishfinder w/chart combos.  The Dragonfly 4 with charts runs 4 W maximum power, includes GPS, depth sounder, charts, and hey, if you decide to fish (which I occasionally do), then it includes a fish finder too.
There are also solar powered wind speed units that only need a very small amount of power for the display, although they are admittedly a bit pricey still.  
Combined with LEDs @ 1 W overall per-hour usage, giving you 24 Wh for all lights on the boat,  and you should be down around 150 Wh total daily consumption, that is assuming no autopilot usage.  A 50 W panel, assuming you only get 4 hours @ full output (which is what I usually assume, you can calculate 12 @ 33% or 8 @ 50% or whatever suits you) will do for the recharging needs. 

    On Monday, March 27, 2017 12:21 PM, Gordon Laco via Public-List <public-list at lists.alberg30.org> wrote:
 

 We carry a hand held GPS which is mounted over the chart table/icebox top.  

I always feel nervous when I read or hear of people going into places using their chart plotter which they wouldn’t go near using paper charts.  One day that screen will go blank… what then?

I am not a luddite to the point where I don’t believe people should use modern navigation systems, but I do feel uncomfortable that use of GPS and other devices sometimes encourages sailors to go where they otherwise wouldn’t.  Our routine aboard SURPRISE is to navigate and/or pilot traditionally (for us, that’s one of the pleasures of cruising) and use the GPS to confirm our dead reckoning or piloting positions as required.

Rod, please don’t take offense, I know you’re a good seaman.

Gord #426 Surprise

On 2017-03-27, 12:11 PM, "Public-List on behalf of Stephen gwyn via Public-List" <public-list-bounces at lists.alberg30.org on behalf of public-list at lists.alberg30.org> wrote:

    
    Also, a small chartplotter will use less power. Or you can go to
    handheld GPS, which will run for 24 hours on a couple of AA batteries.
    
    SG
    
    
    -- 
    -------------------------------------------------------------------------
    Stephen Gwyn                        | Tel: 1-250-363-3136
    Canadian Astronomy Data Centre      | Fax: 1-250-363-0045
    Herzberg Astronomy and Astrophysics | Cell: 1-250-885-6969
    5071 West Saanich Road              | E-mail: Stephen.Gwyn at nrc-cnrc.gc.ca
    Victoria, BC, V9E 2E7, Canada      | http://astrowww.phys.uvic.ca/~gwyn/
    -------------------------------------------------------------------------
    _______________________________________________
    These businesses support your Association:
    http://www.alberg30.org/store/A30supporters.html
    Please support them.
    _______________________________________________
    Public-List mailing list
    Public-List at lists.alberg30.org
    http://lists.alberg30.org/listinfo.cgi/public-list-alberg30.org
    


_______________________________________________
These businesses support your Association:
http://www.alberg30.org/store/A30supporters.html
Please support them.
_______________________________________________
Public-List mailing list
Public-List at lists.alberg30.org
http://lists.alberg30.org/listinfo.cgi/public-list-alberg30.org