Half-Hourly Metering Explained (Without the Jargon)

If you’ve ever seen “half-hourly meter” mentioned on a business electricity quote and moved on without really understanding it, you’re not alone — it’s one of the least clearly explained parts of a business energy contract.

What half-hourly metering actually is

A standard electricity meter is typically read periodically — sometimes estimated — and your bill is calculated from that. A half-hourly meter, by contrast, records your actual electricity usage every 30 minutes, all day, every day, and sends that data automatically to your supplier.

Businesses with higher electricity consumption — commercial kitchens, larger retail units, offices with heavy equipment — are often required to have one, or benefit from switching to one voluntarily.

Why it can work in your favour

Because a half-hourly meter shows exactly when you use electricity, not just how much, it can unlock tariffs that reward off-peak usage or reflect your actual demand pattern more accurately than an estimated-read tariff ever could. For a business with a distinct usage pattern — heavy morning prep, quiet mid-afternoon, a dinner rush — that precision can translate directly into a better-matched, cheaper rate.

What to check

If you’re not sure whether you’re on a half-hourly meter, your latest bill or your meter’s own display should indicate the meter type — or we can check this for you as part of a free contract review, along with comparing what rates are actually available for your usage pattern.