RV & CAMPING / PLAN THE TRIP
Build the power plan around where you camp, how long you stay and the equipment already in your rig.
A quiet campsite, a shaded parking spot and a charged battery would make a fine combination. The tricky part is that the shade you want over the RV is not necessarily where your solar panels want to spend the afternoon.
Choose solar around your trips, not someone else’s roof photo. A weekend with hookups, three nights of dry camping and a month working remotely can lead to very different systems.
Record how many nights you expect without shore power, where you will travel and which season matters. Include driving days only if you have a documented charging arrangement that works while driving. A vehicle socket or alternator does not automatically provide the charging rate you need.
Decide which comforts are essential. Air conditioning, electric space heating and cooking can change the scale of the project. Do not assume a modest roof array and a house battery will support them simply because lights and phone charging work well.
Some loads use the RV’s DC system; others require AC through shore power, a suitable inverter or a standalone station. The converter, inverter, solar controller and any alternator charger have different jobs. Identify what is already installed before buying another box.
A portable station supplying a laptop directly is one arrangement. Charging the RV’s house battery is another. Feeding the RV’s AC inlet is a third and requires specific compatibility checks, including the loads that will turn on. Have a qualified RV electrical professional review integration rather than improvising a connection.
Suppose a small RV uses the following daily energy. The numbers are hypothetical, not typical ratings for refrigerators, fans or other equipment.
| Load | Energy per day |
|---|---|
| Refrigeration | 600 Wh |
| Lights, pump and controls | 200 Wh |
| Laptop and phones | 300 Wh |
| Fan | 180 Wh |
| Total | 1,280 Wh |
Three days use 3,840 Wh at the loads. If the initial usable storage delivers 2,000 Wh and there is no charging, the simplified shortfall is 1,840 Wh. Now assume solar supplies 800 Wh per day to the loads or usable storage on the same accounting basis. Over three days, storage plus solar totals 4,400 Wh, leaving 560 Wh in the simplified budget.
That positive total does not prove the setup works. Solar may arrive after the battery hits its limit, a shaded day may produce less, and power or charging limits can intervene. Plan the timing and reserve, not only the trip total. Recharging before departure also matters.
| Choice | Useful when | Check before buying |
|---|---|---|
| Roof-mounted | You want charging without daily panel setup | Usable roof space, obstructions, mounting approval, roof warranty, routing and travel security |
| Portable | You want to move panels toward a better solar position | Setup effort, storage, cable limits, trip hazards, weather and security |
| Both | The equipment supports separate or combined charging arrangements | Controller design, electrical limits and exact manufacturer-approved connections |
Roof air conditioners, vents and nearby trees can affect panel exposure. Portable panels offer placement flexibility, but someone still has to set them out and bring them in. Consider the way you actually travel.
Record battery chemistry, voltage, usable capacity and discharge limits. If changing chemistry, verify the shore-power converter, solar controller and alternator charger rather than assuming the old charging settings remain suitable. Check charging temperature limits for the exact battery and its compartment.
For panels, match voltage and current to the controller or station input, accounting for the intended arrangement and conditions. Connector shape is not a full compatibility check. Our compatibility guide helps organize the questions.
Notes stay in the open page and are not submitted or saved. Print to keep a copy for your installer.
Explore our RV and camping section, RV and device-power guides and portable-panel matching guide. If the existing system already meets the trip’s needs, you may need better measurements before you need more equipment.
There is no dependable answer based on RV size alone. Daily energy use, usable storage, location, season, shading and the available charging window determine the starting point.
Some properly designed systems can support air conditioning. Check the unit’s running and startup demand, inverter output, battery discharge and energy capacity, and realistic recharge opportunities. A solar-ready label does not establish that capability.
The trip budget is an original AZSP scenario. Technical background: Victron controller installation guidance and battery installation and configuration guidance. These manuals illustrate the checks required; use the manuals for the actual equipment installed in your RV.
AZSP educational guide. Numerical examples are hypothetical planning exercises, not measured product performance or a finished system design. Product guides may contain affiliate links that earn AZSP a commission.