Floating hotel electric system overhaul HELP

Discussion in 'OnBoard Electronics & Controls' started by yodani, Mar 11, 2018.

  1. yodani
    Joined: Nov 2010
    Posts: 190
    Likes: 1, Points: 18, Legacy Rep: 16
    Location: Danube Delta

    yodani Senior Member

    Hi there,

    I am looking for some advice regarding the electrical system and power generation on board a 30m long 5m wide river floating hotel. The boat is not self-propelled.

    At the moment the system is as simple as it gets

    - 15KW diesel generator 220v that runs about 3000h/year. We have done about 30.000 hours without any problems.
    - 2kW inverter with a couple of lead-acid batteries for the lights when the generator is not running.

    Now we are looking to buy a new system and take advantage of the new technology that can save us some money in the long run as the products will be co financed by the EU.

    What I have in mind:

    Option no. 1
    - Fisher Panda 19i - variable speed diesel generator
    - Victron Energy - Quatro 15000 inverter
    - 5 kW solar array with charger inverter
    - Mercedes Benz energy storage li-ion battery system - 21 kW - 18 kW usable

    Option no. 2
    - Fisher Panda AGT-DC 15000 PMS - DC generator for fast battery charging
    - Victron Energy - Quatro 15000 inverter
    - 5 kW solar array with charger inverter
    - Mercedes Benz energy storage li-ion battery system set of two - 42 kW - 36 kW usable in total.

    Our full load on board is about 8-10kW when the air conditioning is running with some peaks when the pumps are starting etc.

    I need to know if someone here has any experience with this combination of power supplies and if the DC generator would be a viable solution for this application in combination with the 36kW battery bank?

    Any suggestions?

    THANKS,

    Daniel
     
  2. gonzo
    Joined: Aug 2002
    Posts: 13,078
    Likes: 291, Points: 93, Legacy Rep: 2031
    Location: Milwaukee, WI

    gonzo Senior Member

    I think that you need to make an energy usage survey first. Based on that, an engineering economic analysis can be made.
     
  3. jorgepease
    Joined: Feb 2012
    Posts: 1,614
    Likes: 45, Points: 48, Legacy Rep: 75
    Location: Florida

    jorgepease Senior Member

    Check out the Tesla Wall II batteries as well, very economical
     

  4. yodani
    Joined: Nov 2010
    Posts: 190
    Likes: 1, Points: 18, Legacy Rep: 16
    Location: Danube Delta

    yodani Senior Member

    Hi and thank you for your answers. I am aware of the Tesla product and LG Chem too but the Tesla is made only for on grid solutions and it is high voltage. The Mercedes one is 48 V and it costs 13.000 EUR for a 21kW pack.
     
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