AC solar systems are easier to install and maintain, provide greater performance, safer and more reliable.

AC Solar systems out perform traditional DC solar systems in the area of energy harvest, reliability, safety and ease of upgrade.

AC Solar systems do away with dangerous high DC voltages which can cause fire or shock.

What is AC Solar?

Conventional direct current (DC) solar systems consist of a number of solar modules wired together in series configuration to create ‘strings’ of modules, with a combined output voltage typically between 200 and 600 volts DC. This is then fed into a single large inverter, which converts the voltage to 240 volts AC for connection to the electricity distribution system.

DC solar system have high DC voltages that are challenging to provide electrical protection.  Poor DC connections have caused roof fires.

 

Alternating current (AC) solar systems use micro inverters (typically one microinverter per solar panel) to convert the output of each solar panel directly to 240 volts AC. This eliminates the need to install DC cabling between modules or to install a large centralised inverter, and greatly simplifies the installation, monitoring and maintenance of the system. Microinverters provide all of the functionality of conventional string inverters – such as automatic disconnect and reconnect when the grid fails – and are required to conform to the same standards (including AS4777).

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The advantages of AC systems

Simplified system design, installation and maintenance

  • Installation is easier and up to 20% faster than for DC solar systems
  • Modules can be installed with differing orientations
  • Systems can be easily expanded by adding any number of additional AC Solar modules at any time.
  • Systems are wired with conventional AC cables – no specialised DC cabling required
  • No string sizes or DC voltage limitations to factor into the design.
  • Balance of system costs (enclosures, DC breakers etc.) are significantly reduced.
  • System commissioning and trouble-shooting is greatly simplified due to the data logging capabilities built into each module. Under-performing modules can be quickly identified and investigated.

Greater safety and reliability

  • Eliminates the string inverter as a single point of total system failure.
  • If a unit does fail it only affects the output of one module and not the whole system.
  • System data is available at a module level (as opposed to a string or overall level). Continuous monitoring of each individual module via an internet gateway enables prompt response to any shading problems or component failure.
  • No high voltage DC cabling on the roof.
  • No DC circuit breakers or fuses required.

Improved system performance

  • Each module is individually maximum power point tracked ensuring the maximum energy generation from every module installed.
  • Any shading that occurs only affects the output of the shaded module, not a complete string.
  • Reduced wiring losses compared to low voltage DC systems Increased energy production of up to 25% has been recorded

Contact us for more info >

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Frequently asked questions

This page contains the answers to some commonly asked questions about AC Solar. If you have a question that is not answered here, please email us at info@acsolarwarehouse.com and we’ll do our best to answer it for you.

Document library

Welcome to our document library. The library contains a list of technical and marketing material available to our customers to assist in installing and marketing AC Solar systems. To request a full copy of these documents, call us or send us an email at info@acsolarwarehouse.com

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Contact

  • Email

  • info@acsolarwarehouse.com

  • Phone

  • Australia: 07 4028 3979

  • New Zealand: 09 222 2262

  • Postal

  • PO Box 408, Cairns

  • Queensland 4870

  • Main office

  • 310 Spence Street, Bungalow

  • Queensland 4870

  • Warehouses

    • Brisbane

    • Hemmant 4174

    • Sydney

    • Riverwood 2210

    • Melbourne

    • Braeside 3195

    • Perth

    • Cannington 6107

    • Adelaide

    • Gillman 5013

    • Cairns

    • Bungalow 4870

    • Auckland

    • New Zealand

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Find a great solar installer

​​AC Solar Warehouse do not install solar and storage systems. We provide the latest products, engineering services and training to solar installation companies. To find the best solar installer in your area please complete the form below and we can provide contact details of an experienced Clean Energy Council accredited installer who can help you.

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​AC Solar Certified retailers and installers are available in Queensland, New South Wales, Victoria, South Australia, Northern Territory, Tasmania, Western Australia, Australian Capital Territory and New Zealand. If you live in Sydney, Melbourne, Brisbane, Adelaide, Canberra, Perth, Darwin, regional towns or cities in any state of Australia and New Zealand you are interested in purchasing a solar power system for our home or business please complete the enquiry form above. We will respond within two business days with contact details of AC Solar Certified businesses in your area, and we will also arrange for the AC Solar Certified businesses to contact you to discuss your requirements.