NSW BESS Performance Review: 2025 Results

PortfolioEnergy-optimised BESS achieves highest revenue in 2-hour category

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

Top Performers in the 2-Hour Segment

2025 Performance Data

A 2-hour BESS using PortfolioEnergy's commercial platform achieved approximately 200 kAUD/MW/year—the highest in its category. For comparison, the runner-up in the 2-hour segment, Riverina 1 BESS, recorded ±194 kAUD/MW/year.

Unit: kAUD/MW/a
PortfolioEnergy*
200
Riverina 1
194
Darlington Point
138

* Commercial platform. Performance data reflects combined energy arbitrage and FCAS revenue, not corrected for marginal loss factors (MLF) for purposes of comparison. The PortfolioEnergy virtual BESS used approximately 1 cycle per day at a round-trip efficiency of 90%. Data derived from publicly available AEMO settlement reports.

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.

For more details on our open-source BESS optimisation approach and 2024 backtest results, visit our Australian NEM Case Study.