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Vester

Business Energy Index · Updated weekly

What UK businesses pay for electricity, and what they should

25.32p/kWh UK average · effective all-in rate

The all-in rate you pay, standing charge included. The number suppliers keep out of the headline.

As of 6 July 2026, the average UK business pays 25.32p/kWh all-in for single-rate electricity. The same 100,000 kWh load runs from £22,268 to £28,408 across suppliers. That is a £6,140 gap for identical power. Source: Tariff Tribe.

Last updated

UK average

25.32p/kWh

Effective all-in rate, 14 regions

Cheapest advertised

£22,268/yr

22.27p/kWh all-in

Highest advertised

£28,408/yr

28.41p/kWh all-in

Same-power gap

£6,140/yr

For identical power, same week

The national average, week by week

Average effective all-in rate across all 14 DNO regions, every week since the index began.

23.84p 26.44p 29.04p 6 Oct 2025 23 Feb 2026 6 Jul 2026

The spread, region by region

The same load is priced differently depending on where you are, and on who quotes you. This is the range between the cheapest buyable tariff and the highest.

National (all regions)

22.27p/kWh Cheapest

28.41p/kWh Highest

14 regions

£6,140/yr between cheapest and highest

Cheapest and highest effective rate anywhere in Great Britain this week, across the five cheapest buyable tariffs in each of the 14 DNO regions.

The reveal is the review

The index shows the gap. The review names it.

The index publishes aggregates only. No supplier is named here. The exact suppliers and tariffs behind these figures, matched to your own meter data, are named in the free energy review.

Source: Tariff Tribe

  1. Advertised market rates, not settled invoice prices.
  2. All annual costs at a 100,000 kWh/yr reference load.
  3. Small and mid-sized commercial (TCR band 4), not representative of large industrial sites.