Solar FAQs

Here you will find answers to commonly asked questions about your solar power system. Please be sure to note the Transcend XPLOR specific details on some answers if you are a Transcend XPLOR Owner.

Do I need a special battery to use my solar system?

Anything from Lead-acid to AGM are appropriate for solar.  Lithium Iron Phosphate batteries can be utilized, but may require a different converter.

What size connectors do I need?

We use Furrion connectors or MC4 sized connectors.  Check your roof mounted solar dock to confirm.

How many panels can I put on my roof?

The size and number of panels that you can install depends primarily on the controller.  Grand Design uses controllers from 25A to 50A.  Work with your dealer to ensure additional panels are utilized most effectively.

What can my solar run?

Coupled with a 2,000 watt inverter (translating to nearly 17 amps), all 12V components, your refrigerator, and nearly every outlet in and on your camper provides many options for off-grid use.*
*On Transcend and select Imagines and Reflections, there is no inverter option.

Can I run my refrigerator while driving with solar?

Yes.  Solar plus tow vehicle charging allows more than enough power to keep your food cool in a residential style 12V DC refrigerator.

Can I use any solar panel?

We recommend quality monocrystalline panels from our vendors, which provide the most efficient power for the available.

Can I use multiple controllers if I want extra power?

Absolutely!  Multiple controllers can be installed in a parallel circuit to provide extra charging power to your batteries to support both 12V and 110V usage.

Do I need to maintain my solar panels?

Keep them clean and scratch free and free from debris to maintain maximum charging power.

If I want to add an inverter after the fact, is this possible?

Yes, an inverter, transfer switch and circuit panel will allow 110V access for outlets and your refrigerator. This should be done by a qualified technician due to the complexity of the wiring and need for an additional sub-panel.
 *Select Reflection models include an integrated sub-panel for convenience.

How many batteries do I need to run solar?

A unit built with solar comes with 2 battery bays from the factory to provide space for 12V group 27 batteries.

Can I add more batteries later?

Yes.  Simply make sure that your additional batteries are of the same age and type, whether it be lead-acid, AGM, or lithium.

Do I have to do anything with my solar system before I plug into shore power?

No, your camper comes with an internal automatic transfer switch which will switch from battery power as soon as you plug in.