Australian BESS Performance Review: 2025 Results

PortfolioEnergy-optimised BESS achieves highest revenue across NEM states

The 2025 performance cycle for grid-scale battery energy storage systems (BESS) in the NEM has concluded, with results reflecting divergent outcomes across the fleet.

Top Performers in the 2-Hour Segment

2025 Performance Data by State

New South Wales (NSW)

A 2-hour BESS using PortfolioEnergy's commercial platform achieved approximately 217 kAUD/MW/year, the highest in its category. For comparison, the Riverina 1 BESS recorded ±194 kAUD/MW/year.

Unit: kAUD/MW/a (= AUD/kW/a)
PortfolioEnergy*
217
PortfolioEnergy (energy only)*
212
Shell Energy Riverina 1
194
LF Energy RTC-Tools (energy only, price taking)**
182
EnergyAustralia Darlington Point
138

*The PortfolioEnergy virtual BESS used approximately 1 cycle per day at a round-trip efficiency of 90%.

**LF Energy RTC-Tools is an open-source optimisation platform.

Performance data reflects combined energy arbitrage and FCAS revenue, not corrected for marginal loss factors (MLF) for purposes of comparison. Data derived from publicly available AEMO settlement reports.

Compared to 2024

Our NSW energy-only results are roughly similar to last year, with the same ranking among assets. VIC and SA results are new for 2025.

Also new for 2025, we are publishing results with co-optimised FCAS participation, which delivers even higher revenue than our energy-only strategy.

Why PortfolioEnergy Delivers Leading Performance

PortfolioEnergy's optimisation platform combines advanced mathematical optimisation with real-time market intelligence and robust risk management. Our approach delivers consistent, market-leading performance even in volatile conditions.

Real-Time Adaptation

Continuously adapts to changing market conditions, price forecasts, and plant constraints to maximise revenue while managing risk.

Advanced Optimisation

Leverages probabilistic forecasting, nonlinear physical modelling, and market impact analysis for superior decision-making.

Risk Management

Proactive identification and mitigation of operational and market risks to prevent costly events that can significantly impact annual performance.

Value Stacking

Intelligent co-optimisation across energy arbitrage and FCAS markets to maximise total revenue.

Interested in learning more about how PortfolioEnergy can optimise your BESS assets? Contact us at info@portfolioenergy.com to discuss your requirements.