In September 2025, Australia reached a landmark moment: for the first time since the National Electricity Market (#NEM) began in 1998, #renewables supplied more electricity than coal. This achievement signals a fundamental shift in the nation’s energy mix and sets the stage for businesses to rethink how they manage power.
For commercial and industrial (C&I) operators, as well as grid‑scale developers, the implications are clear. As renewable penetration rises, battery energy storage systems (#BESS) become the critical enabler—ensuring reliability, stabilising supply and unlocking new opportunities for cost optimisation.
The end users of Brunstock products and solutions are already using BESS to:
🌞 Smooth variability in #solar and #wind output, keeping operations stable.
🌞 Optimise energy costs by storing #power when wholesale prices are low and discharging during peaks.
🌞 Strengthen resilience against #grid disturbances, protecting critical processes.
🌞 Accelerate #sustainability goals while maintaining #compliance with evolving NEM requirements.
Australia’s milestone reflects a broader global trend. In the first half of 2025, renewables overtook coal as the world’s leading source of #electricity for the very first time. This global shift reinforces what Australian businesses are experiencing locally: #cleanenergy is no longer a future ambition, it is the present reality.
With renewables now leading both at home and abroad, investment in #storage is the decisive step for businesses to turn this transition into a competitive advantage. Whether you need a compact C&I system or a large‑scale grid asset, Brunstock’s BESS solutions are designed to help Australian enterprises thrive in this new energy era.
Supercharge your energy future with Brunstock batteries
The role of grid-scale batteries within Australia’s fast-evolving energy landscape is crucial to enable a future powered by renewables. With Brunstock battery energy storage systems, you can be at the forefront of this transformation.
Why we need Brunstock batteries in the Aussie grid
Solar farms, wind and other renewable energy plants are already providing clean, low-cost energy to parts of Australia. This helps reduce the use of fossil fuels need to generate electricity in Australia’s energy grids. When the sun is not shining or the wind is not blowing at your energy plant, you can rely on an energy storage system to maintain the flow of electricity. With the increase of BESS in Australia, our reliance on fossil fuels, like gas and coal, will decrease. This enables continuous progress toward Australia’s net zero by 2050 (source).
With today’s technology humankind cannot undo the damage caused by global warming, but we can slow or even halt it by not taking any more fossil fuels out of the ground. If this ancient carbon stays buried it cannot harm our atmosphere by being converted into dangerous greenhouse gases. This cannot be done overnight without damaging our way of life, but over the next 25 years, with a focus on renewable energy, Australia will reach a stage when we don’t need to extract any more coal or gas.
The use of Brunstock batteries in your commercial or grid-scale project offers an ideal solution for managing the variability of renewables and replacing the antiquated, inefficient fossil-fuel-powered generators.
By installing these advanced batteries, Brunstock is supporting a more sustainable and flexible grid, helping to increase the value and output of Australia’s existing renewable energy assets.
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Author: Daniel Tragai, CEO Australia, MEng/MBA
