RCD Requirements for Backup Power from Solar PV Inverters

Some solar PV inverters offer a backup circuit that can be used even without the presence of batteries. This backup circuit offers the ability to power a small load, when the PV system is generating energy and when the grid is unavailable. Examples of these inverters include the following: 1. Fronius GEN24 Plus (with “PV […]

Vehicle To Grid Implications In Australia

Vehicle To Grid Australia What is Vehicle-to-Grid? Electric vehicles (EVs) are becoming increasingly popular and it is forecasted that by 2030, one third of cars sold will be electric [1]. This increase in electric vehicles poses a challenge to the National Energy Market (NEM) on how to best manage the charging of these EVs without […]

AS/NZS 4777.2 2020 Updates – What You Need to Know

The 2020 updates to the inverter Standard AS/NZS 4777.2 Grid connection of energy systems via inverters, Part 2: Inverter Requirements is now available. If you’re a solar professional, you’re probably familiar with the 2015 version of the Standard. In December 2020, the Standard was updated to reflect changing conditions in the industry. These changes could […]

Specialised Cable Sizing of Complex Electrical Circuits

Cable sizing and derating are critical elements in any electrical project, not just solar power installations. Most electricians rely on Australian/New Zealand Standards AS/NZS 3008.1.1 and AS/NZS 3000 to provide the answers necessary to adequately size and derate cables for a given load in any situation. In some scenarios, a specific site or installation may […]

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