"We will need air-conditioning, but we can't always run a generator. What is the option?"
Many people like to travel all year round - which often means hot conditions during summer! You can travel and camp in comfort with the Kimberley Hybrid Energy System. Run a split system air-conditioner off our high-capacity, lightweight lithium batteries using inverter OR power up with a small, 1kW generator combined as HYBRID system with the lithium batteries.
Watch a video of the Hybrid Energy System in action in a Kimberley Karavans off-road caravan:
More than 10 years ago, portable generators introduced mobile power for off-road caravans. Overnight, this changed the comfort level with the ability to run air-conditioners in particular. Now there is an incredible step change again: 240V air-conditioners operated from lithium batteries.
In it's 20 year, Kimberley Kampers celebrates this milestone with another first in Australia and possible the world!
Portable generators, whilst compact, are still noisy, heavy to lift in and out and require carrying petrol on board. This is a safety issue and in some Indigenous areas, travel permits prohibit petrol containers.
If the air-conditioner is in excess of 2.5kW, it will most likely need a 2kW or 2.5kW inverter generator. These weigh 25kgs+ and use up to 10 litres a day of petrol.
Technology has now brought another step change. There is no longer the need to carry large and heavy generators. Hybrid Energy systems use smaller generators and take their power boost from lithium batteries charged by the available solar energy.
The issue with air-conditioners is that when running, they only use around 1kW of power. However, at startup they use a surge of power for less than 2 seconds. So for that pesky 2 second surge, the customer has to buy a generator at least twice the size and create more noise and use more fuel.
Hybrid Energy Systems are a new version of Inverters that pull that additional "boost power" from the batteries for the 2 seconds during start up and leave the air-conditioner either running on a smaller generator or running on battery power for the rest of the time.
The current loads here during startup are huge at greater than 420Amps on the 12V Lithium Battery system.
This means that the Hybrid Energy control can only be used with Lithium Batteries.
To the user, it is very simple and the boost power happens automatically.
The photo on the right from our Test screen shows 383 Amps being drawn in start up mode (hard to catch the peak on camera!)
The Second screen photo on the right shows the steady state 86 Amps being used when the batteries only are running the airconditioner.
Then running in Hybrid Mode with the 1kVa Generator and the Lithium Batteries operating a 2.2kW Split Airconditioner.
You can see:
Smart Touch Display on the Kimberley off-road caravan range shows important battery and current load information. With this easy ability to determine the amount of battery capacity left, it is easy to have confidence in the Hybrid Energy system. There are individual current and "power capacity" sensors on the batteries, on the inverter and on the solar system.
The photo on the right shows the system in the Kimberley Karavan.
There is a big advantage of using this with a split air-conditioning system. In a "Split" system, just like the new air-conditioning technology in most new homes, the compressor is located outside the "caravan". In the case of the Kimberley Karavan, the compressor is in the separate front storage pak. In the Kimberley kruiser, it is located in the front Uni-pod and in the Kimberley Kamper, it is located in the Delta Gullwing Pak. This significantly reduces the noise inside as well as reducing the travel height and storage height of the Karavan.
Combined with a smaller remote generator, the noise at night is considerably reduced. In fact with no generator, it is very quiet inside for a good night's rest!
The Hybrid Energy Components are:
The Lithium Batteries are re-charged from the solar panels on top of the caravan. A large solar capacity is needed.
Photo shows an installation in a Kimberley Karavans Eco-Suite offroad caravan.
For more information about High Capacity energy systems in off-road caravans download this FREE eBook:
A High Performance Energy System is measured by High Power, Low Weight. Using Super Thin Solar, Lithium Batteries, Fuel Cells, Integrated together. Download this eBook to see how we do the design!
For more information about off-road caravan design download this FREE eBook: