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Power · All businesses

Half-hourly settlement (MHHS): what it means for your business

Market-wide half-hourly settlement (MHHS) changes how electricity is measured and billed behind the scenes. Most of the work is done by suppliers and the industry. This Insight explains what is happening, what it could mean for you, and the few things worth doing now.

Updated October 2026

What's inside

In this Insight

What is changing, and when
What it could mean for your bills
What is worth doing now
What you don't need to do
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Insights are general information, not tax, legal or financial advice. Dates and rates are correct at October 2026.

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