With your power system in your caravan, there is no need for powered sites or caravan parks. This means you can travel anywhere for as long as you want, providing you have the correct system to cater for your personal requirements.
Installing a battery and solar system to your caravan will not only improve your caravanning experience but reduce your carbon footprint. As the system is powered by the sun, you will reduce greenhouse gas emissions, creating less air pollution.
The size of the battery and solar system you will require depends on what it needs to power and for how long. When a battery is run until it is drained flat, it will damage the battery, its operation, and may need to be replaced.