Many travel trailers do not come equipped with generators. Therefore, depending on how and where you camp, you may need to purchase a generator. If you plan on boondocking or will be camping in extreme heat, you may need more help powering the AC in your travel trailer. If you plan on having more than one air conditioning units, you may need to increase your travel trailer's power capacity from 30 amps to 50 amps. Most campgrounds do have 50 amp hookups.