Off-Grid Caravan Solar System: Everything You Need to Know

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Off-Grid Caravan Solar System: Everything You Need to Know

A caravan solar system is a valuable tool to have when camping outside. You can increase comfort and lessen tension by powering necessary camping devices like phones, light bulbs, and air conditioners, significantly enhancing your camping experience. As more people in Australia opt to vacation or move around in a caravan, it is critical to understand the basics of an off-grid caravan solar system.


As the appeal of caravan travel merges with the quest for sustainable, mobile energy solutions, understanding the complexities of off-grid solar systems becomes critical. Our curated guide will walk you through the essentials, from understanding the components of an off-grid caravan solar system to navigating the installation procedure. Furthermore, the Jackery Solar Generator, a portable solar system, is ideal for charging caravan appliances with greater capacity. Whether you're a seasoned nomad or fresh to the world of mobile life, this guide will help you discover the freedom and energy independence that off-grid caravan living provides. 

Table of Contents

Key Takeaways:

• An off-grid caravan solar system is an autonomous power solution designed to provide electricity for onboard appliances and amenities while travelling or camping in Australia.

• Choosing an off-grid caravan solar system is a sustainable way to produce less carbon dioxide and contains many more benefits, like cost-saving, environmentally friendly, and energy independence.    

• The main components of an off-grid caravan solar system are solar panels, charge controller, batteries, inverter, wiring & connectors, and mounting hardware.

• Caravan solar systems harness solar energy through photovoltaic cells installed on the caravan's roof.

• We highly recommend Jackery Solar Generator 2000 Pro and 2000 Plus as portable solar power supplies for caravan and camping appliances due to their higher capacities, lower noise level, portability, and sustainability.

• There are four steps to installing a caravan solar system: planning, double-checking, roof cleaning, installation, and post-maintenance.       

What Is An Off-Grid Caravan Solar System?

Solar energy, obtained from the sun's rays, provides a sustainable and environmentally beneficial alternative to traditional power generation. Solar panels use photovoltaic technology to turn sunlight into electricity, offering a renewable energy source for various purposes.

Off-grid caravans, often known as RVs or motorhomes, can travel and explore distant areas without needing external power sources. These self-contained vehicles offer a sense of adventure and independence, allowing travellers to immerse themselves in nature and visit off-the-beaten-path locations.

An off-grid caravan solar system is an autonomous power solution that supplies electricity to onboard appliances and facilities while travelling or camping in remote areas. These systems typically include solar panels, a battery bank, a charge controller, and an inverter, allowing users to use solar energy to power lights, appliances, electronics, and other caravan components.

The Jackery Solar Generator is popular among off-grid lovers since it provides a compact and versatile Jackery Portable Power Station that can be charged using Jackery Solar Panels or standard AC outlets, ensuring reliable power. Off-grid caravan solar systems allow travellers to experience the comforts of home while exploring off-grid areas, making them an integral component of modern nomadic living.

Why Do Aussies Choose Off-Grid Caravan Solar System?

What images come to mind when you think of the vast Australian outback? Perhaps kangaroos leaping across sunlit plains, dazzling stars illuminating a peaceful night, or the relaxing sound of waves crashing on a quiet beach. Imagine taking in all of this from the luxury of your modern trailer.

Caravanning in Australia has become more than just a popular activity. It's a vibrant lifestyle that provides freedom, flexibility, and the opportunity to connect with the breathtaking majesty of nature in ways that few people can. Choosing an off-grid caravan solar system is a sustainable approach to emit less CO2 and has many other benefits:

  1. Cost-Savings: One of the critical advantages of using an off-grid caravan solar system is the possibility of significant long-term cost savings. By using solar energy to power onboard appliances and amenities, passengers can lessen their dependency on fossil fuels and traditional power sources, cutting fuel and electricity expenditures. Furthermore, with government subsidies and rebates available for renewable energy installations, the initial cost of installing a solar system can be primarily offset, making it a cost-effective long-term investment.
  1. Environmental Impact: Off-grid caravan solar systems provide significant environmental benefits by lowering carbon emissions and ecological footprints. Solar energy is clean, renewable, and sustainable, unlike typical power-generating systems that depend on limited fossil fuels and release harmful pollutants.
  1. Energy Independence: One of the primary benefits of off-grid caravan solar systems is their capacity to provide energy independence and portable power options. Travellers can gain more travel autonomy and flexibility by using the sun's energy to charge batteries and operate onboard devices.

What Are The Components of An Off-Grid Caravan Solar System?

When camping off-grid, a stable power supply is vital because connecting to the mains, as you can at a caravan park, is not an option. The more advanced your off-grid power management system is, the longer you can stay out. While your car's alternator may charge your batteries while you drive, there are two primary forms of longer-term power sources: solar panels and generators. An off-grid caravan solar system consists of the following components:

components of caravan solar system

Solar Panels 

Solar panels are devices made of photovoltaic cells that turn sunlight into electricity. Solar panels convert sunshine into electricity, powering appliances and charging batteries in the caravan. Consider things like panel efficiency, size, and durability. Choose high-quality panels with enough wattage to suit your energy needs while remaining within the allotted trailer roof area.

A high-quality and reasonably priced caravan solar panel might mean the difference between a good and an excellent camping trip. Rigid caravan solar panels have solid, immovable frames and are designed to be fitted on the roof of your vehicle. In comparison, flexible and portable solar panels, such as Jackery Solar Panels, include extra characteristics, such as legs, which allow you to shift the panel to face more sunshine. As a result, they're much better to have during power-limited times, such as the evening.

Charge Controller 

A charge controller is an essential device that regulates power flow between solar panels and batteries, preventing overcharging and damage. Charge controllers safeguard batteries from overcharging and improve charging efficiency, extending their lifespan. Look for a charge controller that matches the voltage and capacity of the solar system. Consider options like maximum charging current, voltage regulation, and temperature compensation. You can use two types of solar charge controllers with your off-grid caravan solar system.

Solar charge controllers can be classified into two types: PWM and MPPT. Consider the following features and functions for each type of solar charge controller:

  • MPPT Charge Controller: These controllers are ideal for more extensive off-grid systems, such as those that power a cabin. They cost slightly more than PWM charge controllers. They are intended to quickly and correctly estimate the solar array's maximum power voltage (Vmp). 
  • PWM Charge Controller: Traditional solar regulators with PWM (Pulse Width Modulation) charging link the solar array directly to the battery bank. During bulk charging, the array output voltage is drawn down to match the voltage when a continuous connection is made between the array and the battery bank. The battery voltage rises slightly in response to the amount of current produced by the array and the battery's size and properties.

MPPT controllers operate at array voltages higher than battery voltage, increasing energy harvest from solar arrays by 5 to 30% over PWM controllers, depending on climate circumstances. (Data Source: Morning Star Corp) The MPPT controller adjusts the array's operating voltage and amperage daily to maximise power output. Jackery Portable Power Stations have an MPPT charge controller to maximise energy gathering and prevent overcharging.

Solar Batteries 

Integrating a solar battery can enhance the efficiency of a solar power system. It allows you to store excess electricity when your solar panels aren't producing enough energy, giving you more options for powering your caravan. Batteries store extra electricity generated by solar panels and are used during periods of low sunshine or at night. When solar energy generation is insufficient, batteries provide a steady power source, guaranteeing the caravan has a constant power supply.

Solar batteries have two main types: lithium-ion and lead acid. Solar panel manufacturers choose lithium-ion batteries because they can store more energy, keep it longer, and have a higher Depth of Discharge.

  • Lithium-ion Battery: Manufacturers prefer lithium-ion batteries due to their greater DoD, longer lifespan, higher energy density, and smaller size. Jackery Portable Power Stations use lithium-ion batteries to provide superior power storage and a longer lifespan, particularly the Explorer 2000 Plus, which has a LiFEPO4 battery inside. However, their various advantages make lithium-ion batteries more expensive than lead-acid batteries.
  • Lead-Acid Battery: Like automobile batteries, lead-acid batteries have long been utilised as in-home energy storage for off-grid electricity. While they are still available at affordable costs, their popularity is waning due to low DoD and shorter lifespan.


An inverter can convert DC electricity from batteries to AC (alternating current), which is then used to power appliances and devices. Inverters allow the use of ordinary AC appliances and electronics in the caravan by transforming stored solar energy into usable power. Choose an inverter with a high power rating (measured in watts) to handle the peak demand of appliances. Consider the waveform type (pure sine wave vs. modified sine wave) and efficiency. 

  • Pure Sine Wave Inverter: Outputs voltage as sine waves. Utilities also offer sine wave output. As a result, pure sine wave inverters are always required if you're connected to the grid.
  • Modified Sine Wave Inverter: Pure sine wave inverters provide AC electricity that resembles a sine wave. Modified sine wave inverters exhibit fast polarity changes from positive to negative. The wave shows a stair-step, square pattern with the polarity flipped back and forth.

Pure sine waves may be more expensive to manufacture, making them rather costly. However, it produces more efficient electricity and less interference. The modified efficiency delivers less wave power than the pure. It requires up to 30% more power and cannot operate at total capacity. A pure sine wave's output voltage waveform has minimal harmonic distortion. 

Wiring and Connectors 

Wiring and connectors link solar panels, charge controllers, batteries, and inverters into a complete system. Proper wiring and connectors ensure efficient energy transfer and reduce power loss throughout the solar system. Choose high-quality, weather-resistant wiring and connections that match the solar system's voltage and current requirements. The wiring should be sized appropriately to minimise voltage drop over long distances.

Mounting Hardware 

Mounting hardware includes brackets, rails, and bolts for securely installing solar panels on the caravan's roof or exterior. Mounting gear ensures the stability and safety of solar panels, preventing damage or detachment during transportation or inclement weather. Choose mounting hardware compatible with the solar panels' size and weight and the caravan's roof or exterior surface type. Maintain optimum waterproofing and structural integrity.

How Does An Off-Grid Caravan Solar System Work?

Off-grid caravan solar systems capture solar energy using photovoltaic cells mounted on the caravan's roof. These solar panels convert sunlight into DC electricity, which is then sent into a charge controller. The charge controller manages the current flow to the batteries, ensuring they charge safely and effectively. 

Batteries store excess energy created by solar panels and provide power when sunshine is unavailable, such as at night or overcast days. An inverter turns the stored direct current (DC) electricity into alternating current (AC), which operates the caravan's appliances and devices. Wiring and connectors help to transport power between components, while monitoring and control devices allow users to track energy production and change system settings for maximum efficiency.

how jackery solar generator works for caravan

Similarly, Jackery Solar Generators work by storing electricity in a lithium battery pack - Jackery Portable Power Station - that can be recharged with Jackery Solar Panels or another charging source. The integrated solar charging capabilities allow users to recharge the battery using solar energy, transforming the generator into a self-sufficient power solution for outdoor activities or emergency backup power.

With various AC outlets, DC connectors, and USB ports, Jackery Solar Generators provide different power output options for charging electronic devices and powering small appliances. Their lightweight and portable form makes them ideal for multiple uses, from camping and hiking vacations to off-grid living conditions requiring dependable electricity. Users may monitor and adjust real-time battery conditions and power usage, ensuring effective energy management and optimal performance.

Jackery Solar Generators for Caravans

With solar electricity, you may stay off the grid for as long as you like while still powering your essential appliances and necessities, as long as the weather permits. Furthermore, solar generators make an excellent backup power supply for your primary solar system and allow you to run your appliances immediately without waiting for your batteries to charge.

A Jackery Solar Generator combines a lithium battery pack and integrated solar charging capabilities to provide portable and renewable electricity for various uses, including a cooler, lights, camera, laptop, drone, portable grill, and more. You should use the Jackery Solar Generator 2000 Plus and 2000 Pro to charge most caravan appliances.

jackery solar generator 2000 pro vs 2000 plus

Jackery Solar Generator 2000 Plus

Jackery's high-performance Solar Generator 2000 Plus substantially advances portable power options. Its massive capacity and high power output allow it to power standard vans for weeks, making it ideal for outdoor trips or home backup power supply. Incorporating battery cells into the Jackery Solar Generator 2000 Plus increases capacity from 2 kWh to 12 kWh, resulting in a paradigm shift in household backup power supply.

The Explorer 2000 Plus can deliver up to 3000W and has a 30% higher rated power than comparable 2 kWh models. Powered devices make up the vast majority of essential household appliances. Despite its regular use, the Solar Generator 2000 Plus can be fully charged in 6 hours (using 6* SolarSaga 100W solar panels). The power source becomes self-sufficient, charging from solar energy instead of the power grid.

The add-on battery pack can be charged with solar panels, providing additional flexibility while boosting charging efficiency and saving time. Jackery Solar Panels produce more lifetime energy due to their excellent solar conversion efficiency of up to 25%. Our solar panels produce 50% more electricity in low-light circumstances than traditional solar panels (PERC) and have a more robust spectrum response.

jackery solar generator 2000 plus

Jackery Solar Generator 2000 Pro

The Jackery Solar Generator 2000 Pro has an exceptional charging capacity of 2,160Wh. It can be charged in under 5.5 hours using 6* SolarSaga 100W solar panels or in only 2 hours using an AC power outlet. Tailored for camping experiences, particularly in locations like New South Wales where electrical outlets are sparse, it becomes an indispensable companion for charging equipment ranging from mini-fridges to phones and illumination.

The Jackery Explorer 2000 Pro portable power station is a dependable emergency backup power supply with a ten-year lifespan and twice-weekly use. Its durability is enhanced by features like heat dissipation and high-temperature protection, ensuring peak performance in various environments. The SolarSaga 100W solar panel's IP67 Waterproof Rating protects it from harsh and moist situations, making it durable and trustworthy.

With a single switch, you may experience the simplicity of endless power. The upgraded input and output display displays give crystal-clear data, including low battery and fault code indicators, providing a smooth and informed operation. The Jackery Solar Generator 2000 Pro combines cutting-edge technology with rugged dependability, providing abundant clean energy to power your travel.

jackery solar generator 2000 pro

How to Install An Off-Grid Caravan Solar System?

Are you thinking about going off-grid with your caravan? It is one of the most significant ways to visit Australia; if you have the resources, we strongly recommend it! However, before you do so, you must first resolve all issues, including your electricity. This guide will show you how to install an off-grid caravan solar system independently.

Step 1: Planning & Preparation

Determine your caravan's energy requirements and select the proper solar panels, batteries, charge controller, inverter, wiring, and mounting hardware. A standard 12v battery produces 100ah of electricity. This means that the battery should be capable of delivering 1 amp of electricity per 100 hours (or two amps for 50 hours, five amps for 20 hours, etc.). The following table will give you a fair sense of the energy consumption of common appliances over 24 hours:

caravan energy requirements

Select an appropriate place for placing the solar panels on the caravan's roof or exterior, ensuring maximum sunshine exposure with minimal shadowing. The optimal placement for your solar panels is on the roof of your caravan, but you need to select the most suitable area on the roof carefully. Consider the cable path and where your 12V or 240V battery will be stored in the caravan. 

Step 2: Double-Check & Clean 

Before you begin the installation, double-check everything. The position of the entry point is critical; therefore, be meticulous when double-checking. Once everything is in order, ensure the caravan's roof is clean. Before installing your solar panels, you can clean them off with soap and water.

Step 3: Install Now 

Lay the panels on a level surface and mark where you'll put the adhesive. Apply a generous amount of glue to the designated area, and keep the panel's orientation in mind before laying it down on the roof.

When satisfied with the position, wipe away any excess sealant with a paper towel and ensure a consistent seal around it. Once the panel is glued, it's time to start drilling. It is best to have someone inside the caravan holding a piece of wood or something similar while preparing. This will assist in avoiding damage to the internal ceiling boards. When you prepare, make sure to do it steadily and slowly.

Now that the hole has been made in the caravan's roof, you must route the cable through it. Insert the wire into the caravan via the hole. Seal the entry gland and then enter the caravan. The first step of the installation process is complete; now it's time to install the solar regulator. Once the regulator is installed, cut the wire from the solar panel to the regulator and route it to the battery. The regulator guarantees that the batteries do not overcharge. Once the batteries are complete, the solar regulator will turn off. 

Step 4: Monitor & Maintenance 

Set up monitoring devices or apps to track real-time energy production, battery health, and system performance. Set up a regular maintenance programme to examine and clean solar panels, check wire connections, and monitor battery life. Perform necessary repairs or improvements to ensure the off-grid caravan solar system remains reliable and efficient.

Off-Grid Caravan Solar System FAQs

The following are the most frequently asked questions about off-grid caravan solar systems in Australia:

1. How do you choose the best off-grid caravan solar system?

The following are some suggestions when choosing a caravan solar system:



Energy Requirements

Calculate the energy requirements for appliances, lighting, and electronics to estimate system size.

Solar Panel Efficiency

Select high-efficiency panels featuring sophisticated technologies such as monocrystalline or polycrystalline.

Battery Capacity and Type

Choose deep-cycle batteries with adequate capacity, chemistry, cycle life, and other factors.

Charge Controller Specs

Check compatibility with system voltage and battery type; search for features such as maximum current.

Inverter Power Rating

Select an inverter with enough watts and features like waveform type, surge capacity, etc.

System Scalability

Choose a modular system that can be easily expanded to meet future energy needs.

Durability and Weather

Choose components that can survive outside conditions and come with warranties.

Budget and Value

Determine a budget for initial expenditures, installation, and continuing maintenance; compare values.

2. How much solar do I need to run a caravan?

The quantity of solar energy required to operate a caravan is determined by energy consumption, appliance usage, and geographical location. A typical caravan may need a solar system consisting of 200 to 400 watts of solar panels to provide essential energy requirements for lighting, electronics, and small appliances. However, the size of the solar system might vary depending on individual tastes and energy needs. Consult with a solar professional to examine your needs and select the best-sized solar system for your caravan.

3. How long will the caravan battery last off-grid?

The lifespan of a caravan battery when operated off-grid is determined by battery capacity, energy usage, and charging techniques. Depending on usage habits and battery size, deep-cycle batteries used in caravans can often last one to several days off-grid. Regular maintenance, proper charging procedures, and careful energy management can help extend the life of caravan batteries and provide dependable performance when travelling or camping off-grid.

Final Thoughts

As we wrap off our tour through the comprehensive guide to the off-grid caravan solar system, it becomes clear that independence and sustainability are within reach on the open road. Navigating the complexities of off-grid living with a trailer is more than simply a way of life; it's a choice between independence and environmentally mindful exploration. You can select between an extensive fixed solar system for your caravan and a portable solar system - Jackery Solar Generator - to charge your appliances quickly and quietly.

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