In a significant step towards sustainable living, we recently completed a fascinating 100% off-grid solar air conditioning installation at a beautiful 3.5-storey terrace house located in the Goodman Crest cluster housing. This project, featuring a Reliance Solar DC Aircon unit, showcases the power and viability of completely independent, solar-powered climate control.
The journey began with an order for a Reliance Solar DC Aircon, a system specifically designed for off-grid operation. This technology directly utilizes DC power generated by solar panels, minimizing energy loss through conversion and making it ideal for stand-alone power solutions.


The location, 29 Goodman Road within Goodman Crest, presented a unique and exciting challenge. The client’s commitment to a fully off-grid system meant meticulous planning and precise execution were paramount.
A crucial element of this installation was the battery bank, strategically housed at 29 Goodman Road, GoodmanCrest. This bank acts as the energy reservoir, storing the solar power harvested during the day to ensure uninterrupted air conditioning, even when the sun isn’t shining. Careful sizing of the battery bank was essential to meet the cooling demands of the house and provide sufficient autonomy.
Complementing the battery bank is the MPPT (Maximum Power Point Tracking) controller. This intelligent device plays a vital role in maximizing the efficiency of the solar power system. It constantly optimizes the match between the solar panels and the battery bank, ensuring the batteries are charged effectively and efficiently, extracting the maximum energy available from the sun.


The heart of the cooling system is the 9000 BTU fancoil unit, installed in the main living room. During our visit, it was a pleasure to witness this unit in full operation, providing a comfortable and cool environment powered entirely by the harnessed solar energy. The quiet and efficient performance of the Reliance Solar DC Aircon truly highlighted the potential of this technology.
A key visual aspect of the installation was the placement of the solar panels on the client’s glass awning. This innovative approach not only utilizes available space effectively but also integrates the solar energy generation seamlessly into the architectural design of the house. The installation required careful consideration of the awning’s structure and orientation to ensure optimal sunlight capture.

This 100% off-grid solar air conditioning installation in Goodman Crest serves as a compelling example of how homeowners can achieve energy independence and reduce their environmental footprint. By harnessing the power of the sun and utilizing efficient DC technology, this project demonstrates a pathway towards a more sustainable and self-sufficient future for residential cooling.