Name: NEM Grid-Scale Battery Dispatch & Revenue Data
Creator: NEMPulse
License: https://creativecommons.org/licenses/by/4.0/

Question 1

What does the actual-vs-optimal capture rate mean?

Accepted Answer

It compares a battery's actual revenue against a linear-programming benchmark that co-optimises energy arbitrage and all 10 FCAS markets together within the unit's SOC, power and capacity limits. NEMPulse shows two benchmarks: a forecast-informed floor (acting only on AEMO's public PREDISPATCH price forecast, settled at actual prices) and a perfect-foresight ceiling (prices known in advance, an unreachable 100%). Capture vs the forecast floor is the fairer, realistic figure.

Question 2

What is the difference between Measured, Derived and Estimated figures?

Accepted Answer

Measured figures are AEMO's published values used as-is (spot price, dispatch MW). Derived figures are calculated from those by a documented method (energy revenue, capture rate). Estimated figures are modelled where AEMO does not publish them, and always labelled (FPP revenue, integrated state of charge).

Question 3

Why is NEMPulse revenue called gross spot revenue?

Accepted Answer

Because it values metered energy and FCAS at the regional spot price only. It excludes cap contracts, hedges, network fees and tolling income, so it is not earnings or profit and should not be used as a basis for financial decisions without independent verification.

How the NEMPulse Numbers Are Built