Off-Grid Power Brand: AERL


AERL designs and manufactures earth fault detection devices, solar charge controllers, and other renewable energy products.


Australian Energy Research Laboratories (AERL) was founded in 1985.  AERL has continued to manufacture and distribute its products worldwide while further improving and developing the range.  In the early 2000s, they launched MPPT Solar Charge Controllers suitable for use in both Micro Hydro and Micro Wind Turbine applications.

Country of Manufacture
Australian Office & Support
Yes, Brisbane Head Office
3 yrs (+2 yrs on warranty registration)
Clean Energy Council Approved
Yes, CoolMax range
Australian manufactured and developed, from a family-owned business


AERL EarthGuard EG-300 Brochure

The AERL EarthGuard Insulation Monitoring Device simultaneously monitors the unearthed PV Array and Battery Storage System for conductor insulation degradation.

AERL CoolMax SRX-600 48V Charge Controller Brochure

The CoolMax SRX features over thirty years of AERL’s MPPT and Battery Charging experience, offering a superior tracking algorithm, an ultra-low loss, high efficiency thermal design, backed by our Australian factory warranty and local support.

AERL CoolMax SRX-600 120V Charge Controller Brochure

With record-breaking conversion efficiencies, intelligent thermal management, and state of the art MPPT tracking, the SRX is a key component of any high-quality DC-Coupled remote power system.



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AERL designs and manufactures earth fault detection devices, solar charge controllers, and other renewable energy

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