AS/NZS 3008.1.1:2025 changed how engineers size cables across Australia and New Zealand. It’s also the fourth edition of the standard. It replaces the 2017 edition, which ran for eight years. So a cable calculation done today needs the new tables, not the old ones. This guide covers the real changes in AS/NZS 3008.1.1:2025. It also […]
AS/NZS 4777.2 Amendment 2 changed how Australia approves grid-connect inverters. Standards Australia published it on 23 August 2024. It became mandatory exactly one year later. Also, it now applies to every new grid-connect install. So any inverter installed today needs to meet it. So this guide covers every real change. It also covers the region […]
AS/NZS 5139 Amendment 1 changed how batteries get installed across Australia and New Zealand. It arrived on 19 December 2025. So if you designed a BESS install before that date, several of your default assumptions just moved. This guide walks through every real change. New definitions. New clearance figures. A genuinely useful garage exception. A […]
Australia has new battery rules for 2026, and they arrived from three different directions at once. Between August 2025 and December 2025, regulators updated the inverter standard, the battery safety standard, and the cable selection standard. Two of them landed on the very same day. So anyone installing, supplying, or specifying a BESS in Australia […]
A BESS grounding system ties every battery rack, enclosure, and steel structure back to a common earth point. So, when a fault happens, current gets a fast path home. But get the BESS grounding system wrong, and one insulation fault can turn a cabinet into a shock hazard. It can also start a slow fire […]
AC block addition is one of two ways to carry out BESS augmentation. BESS augmentation, in short, restores capacity a battery loses over time. Every charge and discharge cycle wears the cells down. So, after a few years, the system can no longer deliver its full contracted energy or power. AC block addition fixes this […]
BESS augmentation is the process of adding new battery capacity to an existing energy storage system. It restores or increases capacity lost to degradation. Every BESS loses usable capacity over time. Cycling wears down the cells. Calendar aging adds to it too, even when the system sits idle. So, eventually, the project can no longer […]
Key Takeaway PCS overvoltage protection is the layered set of defenses that keeps power conversion systems and transformers online, and undamaged, when grid voltage swells past normal limits. It combines fast surge arresters, DC-bus crowbar circuits, software ride-through control, and coordinated relay settings into one system. So it does not treat the transformer and the […]
Grid-scale batteries rarely fail from one single problem. A small fault grows step by step until it becomes a fire — that is the real story behind BESS short circuit protection. It is not one part. It is not one sensor. Good BESS short circuit protection is four layers working together: electrical isolation, early detection, […]
How to Replace a Diesel Generator with BESS: Sizing, Costs, and Case Studies Quick answerDiesel generator replacement with BESS works in three steps. First, convert your generator’s kVA rating to real kW using the power factor. Second, size the battery in kWh to your load and backup hours. Third, size the PCS in kW to […]