Floating hotel electric system overhaul HELP

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

 

I think that you need to make an energy usage survey first. Based on that, an engineering economic analysis can be made.

 

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

 

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.