power box / off grid office

[jens18]

I have build a small prototype system (3S26P)entirely contained in an Ikea box (12x16x\
10 inch). This system is in production since May 2017 and provides all of the power for
my home office.

Next up is a battery to extend the range of the Torqeedo 1003 electrical outboard motor
on our sailboat.

 

[Wattsup]

Hi and welcome.

Is your office 12 volt or do you use an inverter?

 

[jens18]

Hi and welcome.

Is your office 12 volt or do you use an inverter?

Both:

I charge some USBdevices via 12V - 5V DC-DC
adapters and have connected other things to a 300 Watt inverter.

I couldswitch the entire office to DC, eliminate the 300 Watt inverter
and increase efficiency. This however would require to change wiring,
buy additional DC-DC converters, ...

Typical power range is 15 Watt(at night) to 45Watt (during day) with peak
of 120 Watt.