Business energy briefing

A dated market view and useful evidence for the next conversation.

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GB power Sum 27£137.74/MWh

30 Oct 2026 settlement

UK gas Sum 27189.72p/therm

30 Oct 2026 settlement

The commercial read

Sum 27 power rose 4.3%

+4.3% · 23 Oct 2026–30 Oct 2026 · weekly

Higher wholesale settlements can increase exposure at renewal or on unhedged electricity. Existing fixed contracts do not automatically reprice.

Sum 27 · same contracts throughout this chart

Both indexed to 100 on 15 Sept. This compares movement, not price units.15 Sept–30 Oct · 34 dates

Sum 27 GB baseload settled at £137.74/MWh on 30 Oct 2026. Weekly comparison: +4.3% over 23 Oct 2026–30 Oct 2026.