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Off-Peak23 July 2026

Off-Peak Hot Water Not Heating? Controlled Load Metering Explained

Controlled load lets your hot water heat on cheap off-peak rates — but only if the metering is wired and configured correctly.

Off-Peak Hot Water Not Heating? Controlled Load Metering Explained
Map of AustraliaAustralian Owned & Operated
NSW Level 2 ASP
Licensed Electricians
Fully Insured
AS/NZS 3000 Compliant Work
Ausgrid Service Area
Endeavour Energy Service Area
Essential Energy Service Area
Residential, Commercial and Strata

Work completed in accordance with applicable NSW network, metering and electrical requirements.

The Problem: Cold Water or Peak-Rate Heating

Two common complaints point at controlled load metering. The first is cold showers — the hot water circuit isn’t being energised during its off-peak window. The second is quieter but costlier: the system heats fine, but it’s wired to the general circuit and paying full peak rates around the clock.

Both often show up after a meter change, a switchboard upgrade or a house purchase, when the controlled load register was dropped or never configured.

The Solution: Correct Controlled Load Wiring and Registration

Controlled load works by putting the hot water (or other dedicated circuit) on its own metered register that the network energises during off-peak periods. Fixing it means checking the physical wiring at the board, the meter’s register configuration, and that your retailer actually has a controlled load tariff on the account.

We install and rectify off-peak and controlled load metering Sydney-wide, on all three networks. With a smart meter, the controlled load is a register in the one meter rather than a separate old-style unit — tidier board, same cheap rates.

The Result: Hot Water at the Cheapest Rate

Done right, your hot water heats reliably in the off-peak window at a tariff well below general usage rates, and your bill shows the controlled load as its own line so you can see exactly what it costs.

If your hot water is on the wrong tariff or not heating, call 0466 125 125 — diagnosing it usually starts with a photo of your meter board.

COMMON QUESTIONS

What can go on a controlled load circuit?

Dedicated circuits with storage-type loads — most commonly electric storage hot water, and in some cases pool pumps or slab heating. Your retailer’s tariff terms set the rules.

Do I need a second meter for off-peak?

Not with a smart meter — modern meters handle multiple registers in one unit. Older installations used a separate off-peak meter, which we can consolidate during an upgrade.

NEED THIS SORTED?

Level 2 ASP accredited on Ausgrid, Endeavour Energy and Essential Energy. Free quotes, honest advice.

CALL 0466 125 125