Mini split units are ideal for HVAC systems that can work with solar panels.
They are widely used with home additions, garages, sheds, and many other locations.
Mini split units are also the best HVAC systems to use with solar panels.
Why Is a Mini Split Ideal for Solar Panels?
- Very efficient units with less power usage.
- Small and compact compared to traditional HVAC units.
- DIY installation kits.
Mini split units draw less power to start and operate compared to a traditional HVAC system.
Since they use less power to operate, they are much easier to operate from solar panels and batteries.
A system can also be installed by a DIY type person with many different kits available.
What to Look for in a Mini Split Solar Panel Combination?
Besides the build of a system, the main thing to look for with solar and mini split units is the SEER rating.
It is best to get a minimum of a 21-23 SEER rating for a mini split and solar panels but of course higher, the better.
There are high SEER rated units up to 25-35 SEER.
Heat Pump vs. Air Conditioner Only
A heat pump mini split can heat in the winter and cool in the summer, which is ideal in most scenarios.
Most mini split units are heat pumps, but be sure to check since some only run in air conditioner mode.
Heat pump units have what is called a reversing valve that will let it heat or cool.
How To Install a Mini Split with Solar Panels
The inside wall unit mounts on a wall and blows air into a room.
A line-set is two cooper lines that transfer refrigerant between the two units, which transfer hot or cold air.
The outside condenser needs to be placed on a solid surface.
Electrical will also need to be run to the unit, which will vary on the system’s power requirements.
Every install will be different and need to fit the scenario.
How Many Solar Panels are Needed to Run a Mini Split?
This will vary on the unit bought since every units power requirements will be different.
Many high-efficiency mini split unit needs 550 to 1000 Watts to operate.
A mini split will have a peak power consumption rating which will need to be supplied.
For example, if a unit has a peak power requirement of 990 Watts, this will need to be supplied.
In this example, five 200 Watt solar panels can be used with a 2000 Watt inverter and a battery to supply power.
There are many solar panels, inverters, and battery combinations.
120-volt vs. 240-volt Units
While both 120-volt and 240-volts units can be solar powered with the right setup, 120-volt units are the easiest to install.
This is mainly because inverters are mostly set up to manage 115-volts, and a 240-volt 60Hz inverter costs more.
Any voltage type can be used but keep in mind the cost and what you have available to power the unit.
There are also mini split units dedicated to being powered by solar, which can have inputs in DC, but they usually cost more.
A high Seer, 120-volt unit will likely be the best in most solar-powered setups.
So What is the Best Solar Powered Mini Split?
There is no single best set up with many different opinions.
There are many units available that can be used in combination with solar panels, power inverters, and batteries.
There are a few systems that are set up to work with solar panels and use DC voltage.
Many people use a standard mini split unit and use an inverter to supply the AC voltage needed.
There are many good units available, with some of our favorite picks below.
As always, be sure to read the reviews on Amazon, forums, here, or elsewhere to be sure a unit is a good fit for you.
*This post contains affiliate links.
Our Picks for Best Solar Powered Mini Split Heat Pump
- MRCOOL DIY Kit
- Jntech 12000BTU Solar ACDC
- YMGI Solar Assist Ductless Mini Split
- HotSpot Energy ACDC12C
Available Here on eBay
Mr. Cool mini split units are very popular and one of the easiest to install.
They are set up for the DIY-type person with a line set that comes in a vacuum. This means there is no need for a vacuum pump to pump the line set down.
They also have 120-volt units, which are usually the best fit into a solar-powered setup.
The new units are 22 SEER making them very efficient units. They are also heat pumps which means they both heat and cool when needed.
There are dedicated solar-powered mini split units listed below, but for the cost and a few modifications, the Mr. Cool units are worth a look.
Available Here on Amazon
Jntech has a 12000 BTU solar assist mini split available.
Solar assist units use power from both the solar panels and grid power when needed.
For example, during the night, they would use power from a grid, and during the day, when the sun is bright, it will use solar.
It is rated at 22 SEER, which is a good rating making it one of the more efficient units currently available.
It is also a heat pump making it able to heat in the winter and cool in the summer.
Highly efficient mini split units mean less power consumption, which makes them ideal for a solar panel setup.
A Jntech mini split unit would be one such system that would be a good fit in a solar setup.
YMGI has several options available, including solar panel assist units.
Solar panel assist options still require power from a city supply but offset it with solar energy.
Even though these types of units are sold to lower utility costs like any unit, they can be modified to work with solar only.
The HotSpot ACDC12C unit is set up to operate directly from solar panels without an inverter.
The ACDC12C can get power from three 300W solar panels, or six 300W panels for running when the sun is not at full strength.
It is a hybrid system that can also be connected to a 208-240 AC power source.
Setting up a mini split with solar panels is ideal for many reasons, most of all for lower energy costs.
While mainly used for lower running costs, they also can be installed in RVs, campers, and trailers.
Many installs use 4-6 solar panels on a roof to supply power.
More or fewer panels can be used in combination with batteries and an inverter if necessary.
Have you installed a mini split system with solar panels? Let us know your thought below.