Hello,We have a spot on our farm that we would like to setup for three campers. We are wondering if we could buy one generator to power all three.One is a 50 amp with two A/C'sTwo with 30 amp and one A/CWhat size generator would we need? I'm not an electrician and I didn't stay at a Holiday Inn Express last night, but if the normal size Gen in most RV's is 4000 watts, wouldn't a 15,000 watt Gen cover them all? Again not an electrician, so I'm sure there are some complicated calculations to figure this out.Thanks in advance for any help!!!

dadgumitjimbob wrote:Hello,We have a spot on our farm that we would like to setup for three campers. We are wondering if we could buy one generator to power all three.One is a 50 amp with two A/C'sTwo with 30 amp and one A/CWhat size generator would we need? I'm not an electrician and I didn't stay at a Holiday Inn Express last night, but if the normal size Gen in most RV's is 4000 watts, wouldn't a 15,000 watt Gen cover them all? Again not an electrician, so I'm sure there are some complicated calculations to figure this out.Thanks in advance for any help!!!Find out the BTU's on all the AC units for us and get back to us. Will they also be running the microwave ovens at the same time as the AC's? That's another consideration. If you have to go that big, consider looking into a diesel generator instead of gas. Think red dye diesel, since this is off road use only, for operating expenses.

No, the computations are pretty simple. 50+30+30=110 amps. At 120 volts, that would be 120 x 110 = 13200 watts, so yes, a 15,000 watt generator would cover you.

dadgumitjimbob wrote:Hello,We have a spot on our farm that we would like to setup for three campers. We are wondering if we could buy one generator to power all three.One is a 50 amp with two A/C'sTwo with 30 amp and one A/CWhat size generator would we need? I'm not an electrician and I didn't stay at a Holiday Inn Express last night, but if the normal size Gen in most RV's is 4000 watts, wouldn't a 15,000 watt Gen cover them all? Again not an electrician, so I'm sure there are some complicated calculations to figure this out.Thanks in advance for any help!!!Jimbob, While the idea of a campground is good, best pat your checkbook. A 15KW genset will be pretty big cash. It may be less expensive to get a power line pulled in. In most states, farms can have multiple services. Yes, you will get an extra bill and may even have to pay a service fee, but you won't have to lug fuel and maintain a remote machine. And, then you can plant three 20/30/50 posts and be ready for future expansion. Matt

You need one capable of 15k steady state, not just 15k peak. you are looking easilly at a few thousand for a proper genset to handle the 3 RVs plus breaking out the power. Most suitable generators for this type of duty would easilly cost $4000-8000 depending on used to new requirement. As mentioned, you may be able to get service pulled in and install a weather tight breaker panel to provide 30 and 50A outlets to plug into at a central location and not have to worry about bringing in fuel and maintaining the genset. Plus if you add another RV, a 200A panel could handle that.

naturist wrote:No, the computations are pretty simple. 50+30+30=110 amps. At 120 volts, that would be 120 x 110 = 13200 watts, so yes, a 15,000 watt generator would cover you.Except 50 amp service is 12 kW right there.Otherwise yes I think 15 kW would be fine to share.Kill it with 18 or 20 kW.+1 for pulling utility power.

Generator Size for Three RV's | Good Sam Community

naturist
Nomad
Nov 03, 2014
No, the computations are pretty simple. 50+30+30=110 amps. At 120 volts, that would be 120 x 110
= 13200 watts, so yes, a 15,000 watt generator would cover you.
NinerBikes
Explorer
Nov 03, 2014
dadgumitjimbob wrote:
Hello,

We have a spot on our farm that we would like to setup for three campers. We are wondering if we could buy one generator to power all three.

One is a 50 amp with two A/C's
Two with 30 amp and one A/C

What size generator would we need? I'm not an electrician and I didn't stay at a Holiday Inn Express last night, but if the normal size Gen in most RV's is 4000 watts, wouldn't a 15,000 watt Gen cover them all? Again not an electrician, so I'm sure there are some complicated calculations to figure this out.

Thanks in advance for any help!!!

Find out the BTU's on all the AC units for us and get back to us. Will they also be running the microwave ovens at the same time as the AC's? That's another consideration. If you have to go that big, consider looking into a diesel generator instead of gas. Think red dye diesel, since this is off road use only, for operating expenses.

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