Households across Britain are set to feel the benefit of Ofgem’s new energy price cap—but some areas will see significantly bigger savings than others, new research has found.

Leading the way is the City of London, where residents are expected to save a sizeable £76.80 a year under the revised cap, making it the top local authority for energy bill savings this summer.

The study, carried out by energy grant specialists UKEM, used the latest 2023 data from the Department for Energy Security and Net Zero to compare electricity costs before and after the updated cap, due to take effect in July.

While the entire UK will benefit, the research pinpoints exactly where the biggest gains will be made—and it’s not just city slickers coming out on top.

Top 10 Energy Bill Savings by UK Area

According to the analysis, Scotland and the South of England dominate the rankings, with three areas from each region making the top 10. Rural and coastal communities in particular stand to gain the most, thanks to higher-than-average energy use.

Rank Local Authority Annual Saving (£)

1 City of London £76.80

2 Argyll and Bute (Scotland) £70.60

3 Highland (Scotland) £67.00

4 Cotswold (South West) £64.10

=5 Elmbridge (South East) £60.80

=5 South Hams (South West) £60.80

6 South Oxfordshire (South East) £60.50

7 Waverley (South East) £60.20

8 Uttlesford (East of England) £59.10

9 King’s Lynn and West Norfolk £59.00

10 Cornwall (South West) £58.80

In Argyll and Bute, residents will see their bills drop by £70.60, with average annual consumption at 5,429.20 kWh. Close behind is the Highland region, where households are expected to save £67.

Cotswold, known for its rural charm, takes fourth spot with savings of £64.10, followed by a tie between Elmbridge and South Hams, where households will each pocket £60.80 in annual savings.

South Oxfordshire, Waverley, and Uttlesford also feature prominently, while Cornwall, a region known for higher energy use due to older housing stock, rounds out the top 10 with a respectable £58.80 saved.

Why Some Areas Save More Than Others

The data paints a clear picture: areas with higher average consumption see the biggest benefits when price caps fall. In the City of London, average household usage sits at an unexpectedly high 5,910.20 kWh, leading to current annual costs of £1,597.50—set to fall to £1,520.70 from July.

Explaining the figures, Nina Copeland, Director of Sales and Support at UKEM, said:

“This data shows the different patterns in energy usage in the UK, and ultimately how structural disadvantages can impact households across Britain.

“The fact that two Scottish regions feature in the top five isn't coincidental. Scotland's rural areas combine the worst of all worlds: harsh winters, limited gas infrastructure, older housing stock and higher electricity distribution costs.

“The City of London anomaly at 5,910 kWh is intriguing, and it could reflect mixed-use buildings or older commercial properties with residential elements.

“The southern English areas likely represent a different challenge: larger, older properties where residents can afford high consumption, but buildings remain inefficient.”

Crucially, she added that many people in these high-use regions could qualify for government-backed support schemes like ECO4, designed to improve energy efficiency and bring down bills in the long term.