⚠ Illustrative data · Representative figures for soft launch · Live figures publishing Q1 2027 following independent audit
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NEM BESS Capture Index · July 2025 – June 2026

How much of the LP-optimal revenue
are NEM batteries actually capturing?

The Capture Index benchmarks every grid-scale BESS in the NEM against the LP-optimal dispatch outcome — identifying the exact size and source of the performance gap, by region, by company, by asset.

71.4%
NEM-wide average capture rate
55
BESS DUIDs tracked
3.2 GW
Total capacity benchmarked
28.6%
Average performance gap vs LP-optimal
Representative data — illustrative only
Regional performance

Capture rate by NEM region

LP-optimal benchmark vs actual SCADA dispatch, 12-month rolling average (Jul 2025 – Jun 2026). Illustrative figures.

Gap attribution

Where does the performance gap come from?

The 28.6% average gap is decomposed into three structural sources using LP counterfactual analysis. NEM-wide average.

G-SIG
G-THR
G-PRO
G-SIG — Signalling gap
Missed high-price dispatch windows due to advisory signal gaps: wind drought misclassification, IC constraint under-prediction, or no signal at all.
0%
G-THR — Threshold gap
Revenue lost to overly conservative SOC floors and charge/discharge thresholds — particularly visible in SA1 during high-constraint periods.
0%
G-PRO — Protocol gap
Operator-specific dispatch protocol divergence from LP-optimal — FCAS co-optimisation conflicts, manual overrides, and proprietary bid strategies.
0%
Gap attribution uses LP counterfactual simulation on AEMO DISPATCHPRICE and SCADA actuals. Each gap category is computed by switching off one source of sub-optimality at a time and measuring the revenue recovery.
Region G-SIG G-THR G-PRO Capture

All figures illustrative. Live data audit in progress.

Company performance

Capture rate by operator

Top 3 operators shown. Register free to access the full leaderboard — 12 NEM BESS operators ranked by capture rate.

# Operator Primary regions DUIDs Capture rate

Register free to see all 12 operators ranked by capture rate

Asset lookup

Find your asset

Search any NEM BESS DUID to see its capture rate, gap attribution, and regional ranking. Register free to unlock DUID-level data.

MREHA1
GreenPoint Energy
VIC1
Capture rate
71.3%
vs NEM avg
−0.1%
Fleet rank
#14 / 55
Primary gap source: G-SIG (57%) — primarily wind drought signal misses on 4 high-value events.
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DUID-level data is unlocked for registered users

Create a free account to access capture rate, gap attribution, and monthly trend data for any NEM BESS DUID.

Methodology

How the Index is built

The Capture Index uses LP-optimal dispatch simulation against AEMO SCADA and DISPATCHPRICE actuals.

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LP-optimal benchmark

For each DUID, we solve a linear programme over AEMO DISPATCHPRICE with asset-level capacity, ramp, and SOC constraints — this is the theoretical revenue ceiling.

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SCADA actuals

Actual dispatch (MW) is sourced from AEMO DISPATCHSCADA at 5-minute resolution. Revenue is computed using DISPATCHPRICE for the asset's region and connection point MLF.

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Gap attribution

The gap between LP-optimal and actual revenue is decomposed into G-SIG, G-THR, and G-PRO using counterfactual simulation — each source is isolated and quantified independently.

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Pre-publication audit: All figures are verified by an independent pre-publication data audit before each release. The audit checks LP accuracy, SCADA data completeness, and methodology consistency. AUDIT_PASS is required before any figure is published. This process is documented in the Synertia methodology note.