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Data Centres: Boom and Backlash
14AUG

AEMC tells ministers to price big loads

2 min read
10:48UTC

Australia's rule-maker advised energy ministers on 5 August that data centres should surrender renewable certificates against consumption and prove new demand is backed by new firm capacity.

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Key takeaway

AEMC wants data centres registered as market participants, with renewable certificates surrendered against what they use.

The Australian Energy Market Commission advised federal and state energy ministers on 5 August that data centres should surrender Renewable Electricity Guarantee of Origin certificates against their consumption 1. AEMC writes the national electricity rules, and a REGO is the tradable proof that a megawatt-hour came from renewable generation. The same advice asks operators to show that new demand is backed by new firm capacity, to register as market participants, and to accept connection terms that reward demand shifting and co-location with generation 2. A final determination on technical access standards falls due in late October.

Registration is the part that changes a data centre's legal position rather than its bill. A registered participant sits inside the market's obligations and dispatch machinery instead of buying power through a retailer at the edge of it, which is what makes the demand-shifting terms enforceable rather than aspirational. The REGO surrender does something narrower: it stops an operator claiming a renewable supply it has not retired certificates for.

Ireland's regulator reached a similar destination by another route, reopening connections with renewable and on-site generation conditions attached . AEMC is advising rather than deciding, and ministers can take the advice, dilute it or leave it. The late-October determination on access standards is the piece that binds without them.

Deep Analysis

In plain English

The Australian Energy Market Commission (AEMC), the body that writes the rules for Australia's electricity market, told the government on 5 August that data centres should have to buy renewable energy certificates specifically from new wind and solar farms, and settle the account once a year rather than matching it to the exact hour they draw power. The advice would also make large data centres register directly with the market operator for the first time, rather than only through their electricity retailer. Registering alone would not force any centre to take part in real-time dispatch, which would stay voluntary.

Deep Analysis
Root Causes

REGO certificates already carry generator identity and a generation timestamp under the Future Made in Australia (Guarantee of Origin) Act 2024, so the data needed to match a data centre's consumption to real generation already exists.

AEMC's Recommendation 1 chooses not to require that match: liabilities would split into broad peak and off-peak periods rather than hourly matching, avoiding, in the AEMC's own words, 'the complexity of hourly load matching', and REGOs would need to come from new renewable generators only, settled annually after the fact.

Large data centres already sit inside wholesale settlement today, indirectly, as customers of a retailer, itself a registered market participant. AEMC's Recommendation 3 adds direct registration with the market operator and real-time telemetry above a size threshold, not entry into a framework they were previously outside.

The AEMC is explicit that 'market registration does not require market participation': a registered data centre can still stay out of dispatch voluntarily, and formal integration into the market operator's visibility and access-standards frameworks remains a separate process with final rules due in October and December 2026.

What could happen next?
  • Consequence

    AEMC's own advice states that market registration does not require market participation, so a registered data centre could still opt out of real-time dispatch.

First Reported In

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Australian Energy Market Commission· 14 Aug 2026
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Australian Energy Market Commission
Australian Energy Market Commission
AEMC advised ministers on 5 August that data centres should surrender renewable certificates against actual consumption, prove new demand with new firm capacity, and register as market participants. The advice would turn passive customers into obligated participants inside the market's dispatch and settlement machinery, ahead of an access-standards determination due in late October.