Bill rank is not population rank
According to Ofgem's July – September 2026 default-tariff cap, South West England ranks #13 of 14 GB distribution regions by typical dual-fuel bill (cheapest = #1) at £1,889, and #7 of 14 by approximate population (largest = #1). The cheapest region is East Midlands, not the largest (London).
Why does South West England's cap differ from other regions?
Every region in Great Britain pays a different energy price cap, and the reason is the local distribution network rather than anything a household does. Roughly a quarter of a typical bill goes to building and maintaining the poles, cables, substations and meters that deliver power to the door, and that cost is recovered from the homes connected to it. Where the network is long and the population sparse, a large fixed infrastructure cost is shared between relatively few customers, so the per-household charge is higher; where demand is dense and the network compact, the same cost is spread much more thinly. Ofgem sets the cap separately for each of the 14 distribution regions every quarter to reflect those differences, which is why two identical households using exactly the same amount of gas and electricity can still face noticeably different annual bills depending only on where they live. The figure shown above is the typical, medium-usage estimate for South West England under the current cap; a household that uses more or less than the typical amount will see its bill scale up or down from there.
Peers vs South West England
Exclusive cut of all 14 GB distribution regions relative to South West England’s typical dual-fuel bill. Orthogonal to the bill≠population dual above: peer counts only, not ordinals restated as percentages.
Ofgem cap plate
Board L · South West England £1,889 · 13th/14
NEAR-PEER · DNO-NGED · ENG-BOARD · DENSE-DEAR · ABOVE-AVG · CODE-L
- NEAR-PEER Near peer
- DNO-NGED National Grid ED
- ENG-BOARD England board
- DENSE-DEAR Dense · dearer half
- ABOVE-AVG Above GB average
- CODE-L Ofgem region L
Nearest board: South Wales (£7 apart)
Instrument codes from this board’s Ofgem default-tariff cap position (gap to nearest peer · DNO family · nation board · bill≠population dual · vs GB average · region letter), not a switching recommendation.
Cap neighbourhood around South West England
Cheapest and dearest poles plus the boards nearest South West England on the July – September 2026 dual-fuel cap. Full 14-region board: rankings.
South West England typical annual dual-fuel bill is £1,889 for July – September 2026, ranked 13th of 14 GB regions.
Where South West England sits among all 14 GB regions
Typical dual-fuel bill bands under the current Ofgem cap. South West England is marked; cheaper is lower on the inventory.
South West England vs all regions by typical dual-fuel bill
Where this region's July – September 2026 typical bill sits among every GB distribution region
1,889 13th of 14 higher than 12 of 14 regions
Regions, banded by typical dual-fuel bill (£/yr)
Each bar is a band; taller bars hold more regions. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source Ofgem default-tariff price cap · July – September 2026
South West England in the national picture
Where South West England sits among the 14 GB regions for July – September 2026 - shaded by typical bill, with South West England ringed.
Each tile is one of the 14 GB electricity distribution regions, shaded by typical annual dual-fuel bill under the Ofgem cap for July – September 2026 (£1,805 cheapest → £1,950 dearest). Source: Ofgem price cap, July – September 2026.
What makes up the bill in South West England
South West England's £1,889 typical bill splits into £315 of GB-average standing charges plus £1,574 of energy use, priced at this region's own network rates.
How this breakdown is calculated
A typical bill has two parts: the energy you use (per-kWh unit rates) and standing charges (a fixed daily fee you pay before using any energy). Figures use Ofgem's GB-average rates for July – September 2026 on medium usage (2,700 kWh electricity / 11,500 kWh gas). The same GB-average composition applies nationwide; South West England's bill differs mainly through network charges in the unit rates (see the Ofgem cap plate above).
For informational purposes only, this page does not constitute financial advice. Figures are sourced from Ofgem's published default-tariff cap for July – September 2026. Compare the 14-region board on the rankings, estimate a usage-adjusted figure with the calculator, or read the regional-price guide.
Nationwide regions with similar cap context
Three peer lenses for South West England, each excluding this distribution region: typical bill under the July – September 2026 cap, connected population scale, and shared distribution-network operator where the data supports it.
Similar typical bill
Nearest other regions by Ofgem typical dual-fuel bill (£1,889 here).
Similar population scale
Nearest other regions by approximate connected population (5.2m here).
Same DNO operator
Other National Grid ED distribution areas on the same network operator.
Region facts
- Typical dual-fuel bill (July – September 2026): £1,889/year
- Ofgem distribution region: L
- Approx. population: 5.2 million
- Cost rank: 13th of 14 (1 = cheapest)
In National Grid Electricity Distribution's South West area, the long Cornwall-and-Devon peninsula drives network charges above the GB average.
Sources
- Ofgem default tariff cap - July – September 2026
- Ofgem energy price cap (regional charges), South West England network costs sit inside this board.
- Regional figure derived from Ofgem's per-region cap rate; see our methodology for detail.