size of generator?

i've been trying to figure this out for days: building a Toronto based mobile command until for my website ('17 ford transit 250 high roof extended that i will dwell in). it will require 1.5kw of power for electronics (max (4 laptop workstations etc)), which will be powered by 2 300ah lithium batteries. the batteries will be charged either by a dc to dc charger from the alternator while driving, or a generator, which will charge it through a inverter/charger. I will also be running a portable AC unit from the generator during the summer months (likely 1.2kw). so i figure one extension cord from the generator to the inverter/charger, and one extension cord to the portable AC unit, hang the hose out the window I have no idea what kind of draw the inverter/charger will have on the generator to charge the batteries while they're being used to power the 1.5kw of electronics (possibly will use a rego 12v 3000w pure sine wave inverter) possibly it will take the amount of wattage being used by the electronics (1.5kw) plus whatever is required to charge it? I have written to renogy, but I will base it on a 75a charger for now, so 900w maybe? So if I'm going to calculate the running watts required of the generator, I go: (1.5kw (electronics) + 1.2kw (portable ac unit) + 0.9kw (charge the batteries)) * 1.5 (need additional 50% running watts to not stress generator etc) = 5.4kw So then I should get a 5700 running watts generator to charge the batteries (that are powering 1.5kw of electronics) and also power a portable ac unit in the summer? Is 5700 enough for this scenario, given the possible massive draw an portable AC unit might require from the generator whenever the condenser kicks in? submitted by /u/daveasdf222 [link] [comments]

i've been trying to figure this out for days:

building a Toronto based mobile command until for my website ('17 ford transit 250 high roof extended that i will dwell in). it will require 1.5kw of power for electronics (max (4 laptop workstations etc)), which will be powered by 2 300ah lithium batteries. the batteries will be charged either by a dc to dc charger from the alternator while driving, or a generator, which will charge it through a inverter/charger.

I will also be running a portable AC unit from the generator during the summer months (likely 1.2kw). so i figure one extension cord from the generator to the inverter/charger, and one extension cord to the portable AC unit, hang the hose out the window

I have no idea what kind of draw the inverter/charger will have on the generator to charge the batteries while they're being used to power the 1.5kw of electronics (possibly will use a rego 12v 3000w pure sine wave inverter)

possibly it will take the amount of wattage being used by the electronics (1.5kw) plus whatever is required to charge it? I have written to renogy, but I will base it on a 75a charger for now, so 900w maybe?

So if I'm going to calculate the running watts required of the generator, I go:

(1.5kw (electronics) + 1.2kw (portable ac unit) + 0.9kw (charge the batteries)) * 1.5 (need additional 50% running watts to not stress generator etc) = 5.4kw

So then I should get a 5700 running watts generator to charge the batteries (that are powering 1.5kw of electronics) and also power a portable ac unit in the summer?

Is 5700 enough for this scenario, given the possible massive draw an portable AC unit might require from the generator whenever the condenser kicks in?

submitted by /u/daveasdf222
[link] [comments]