Size of inverter needed

What size pure-sign-wave 12 volt inverter to run
10 laptop computers
3 Desktop Computers
3 Floor standing domestic fans
1 Internet Router
and 10 x 5 watt LED lights


  • PhotowhitPhotowhit Solar Expert Posts: 5,105 ✭✭✭✭
    Too many variables, Desktops can run 150-1500 watts, floor fans 50-300+, Laptops from 25-200+
    Home system 4000 watt (Evergreen) array standing, with 2 Midnite Classic Lites,  Midnite E-panel, Prosine 1800 and Exeltech 1100, 660 ah 24v ForkLift battery. Off grid for @16 of last 17 years. Assorted other systems, and to many panels in the closet to not do
  • Mountain DonMountain Don Solar Expert Posts: 494 ✭✭✭
    I don't mean to sound like a smartass but I would start by adding up the watts that are usually listed on the device power block or name plate.  
    Northern NM, 624 watts PV, The Kid CC, GC-2 batteries @ 24 VDC, Outback VFX3524M
  • capitanojulianocapitanojuliano Registered Users Posts: 20
    Yes you are right, this set-up is going to be charged by a mains battery charger and is a back-up system when there is a power outage. The frequency is such that probably even a 10 amp charger has enough time to re-coup the batteries.
  • capitanojulianocapitanojuliano Registered Users Posts: 20
    I shall be posing a new question which is an expansion of the previous topic.
    Unfortunately it will seem even more unspecific as to exact consumption.
    I thank you for your input thus far which is helping toward my provision of power in Cambodia.

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