How much energy can be saved by solar hybrid a/c?*

The measurements required by Australian Minimum Energy Performance Standards(MEPS), must be measured with the solar panel “disconnected or disabled”. Measurements at full power are taken every 5 minutes for 35minutes and then the results are averaged to give the Energy Efficiency Ratio (EER), for cooling and the Coefficient of Performance (COP), for the heating cycle. As Inverter systems ramp up to 120% of the rated output under these conditions, an amendment was added so that they could be tested at half power to enable compliance. Clearly this produces a result that cannot be compared with either conventional or Solar air conditioners on a level playing field. The chart below shows the static full power EER results showing that even without the solar panel the Solakool system is much more efficient than conventional fixed speed systems.

*Tested as required by Australian Standards with solar panel disabled.

Can the CSE Solar Hybrid A/C be installed by Do-it-yourself?

Only qualified tradesmen holding a CSE Installation Certificate may install the CSE Solar Hybrid A/C system. This is to ensure that installation is as per the installation manual and to qualify for the warranty.

Warranty time and after sales service?

The warranty time for CSE solar hybrid a/c is 5 years and the designed service life is 30 years. Most components are readily available locally, however, they are covered by the warranty in the warranty period.

Does the solar collector need any special maintenance?

NO special maintenance is required once installed.

Is the CSE solar hybrid a/c 100% solar?

No. It still requires electric power to operate the compressor and the fans. However, when operated throughout the day, the solar hybrid air conditioner saves electricity by using a smaller compressor that only needs to operate infrequently.

Can the CSE Solar hybrid a/c work at night and in cloudy weather?

The CSE solar hybrid air conditioner works day and night and in rainy or cloudy weather.

The solar panel will absorb and store solar thermal energy during the day. It only requires 4-5hours of daylight for 15hrs continuous operation.

What is the difference between Inverter a/c and solar hybrid a/c?

Inverter technology enables the a/c to operate at the most efficient compressor speed when below full power. It does this by using a DC motor instead of an AC motor and an inverter to vary the frequency of the power to the motor. At full power it has no advantage over conventional a/c. Typically, an inverter will save up to 15% of the electricity required to operate except when it is on full power.

Many customers who have installed SOLAKOOL solar a/c have saved over 80% compared to a conventional a/c. This means that for 80% of the operating time of a 3.5kW Solakool system, it only draws 30watts, similar to the light bulb in your refrigerator.

By operating the system all day, this can eliminate the high airconditioning demand at peak times.

Will my CSE solar air conditioner feed power into the Grid?

No. The solar air conditioner collects and uses solar thermal energy not solar photovoltaic energy. It is never converted into electricity, but provides the solar benefit by thermodynamic advantage. The thermal benefit achieved by a 3.5kW Solakool could only be supplied by a 6kW photovoltaic system and then only when the sun is out. Of course this is not financially viable.

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