Last updated: 6th February 2026
Pricing data matches the January 2026 Ofgem price cap region for South East. Next scheduled update: .
Windsor Energy Snapshot
- Cheapest Supplier: Octopus Energy
- Distribution Network: UK Power Networks
- Avg. Gas Usage: 14,287 kWh/year
- Smart Meter Uptake: 51% (vs UK average)
- Local Authority: Windsor and Maidenhead
We’ve looked at where you can get the cheapest gas and electricity prices in the Windsor area to give you an idea of what you could be paying if you switched energy suppliers and how much you could save on your energy bills.
Windsor is a key residential area located within the Windsor and Maidenhead. The area contains approximately 66,000 domestic properties, with energy infrastructure maintained by UK Power Networks (South East region).
Unlike typical Town averages, Windsor has a unique energy profile with 45% of homes rated EPC Band C or above. This efficiency data contributes to the area’s average annual gas consumption of 14,287 kWh and electricity consumption of 4,186 kWh per household.
Who are the cheapest energy suppliers in Windsor?
By using the current prices for tariffs in Windsor and the average gas and electricity usage for a 3-bedroom home, we have found the following energy providers currently have the cheapest tariffs near you:
| Supplier Name | Tariff Name | Tariff Type | Monthly Cost | Yearly Cost | Early Exit Fee |
|---|---|---|---|---|---|
| Octopus Energy | Octopus 12M Fixed | Fixed | £133 | £1,601 | £0 |
| E.ON Next | Next Fixed 14m | Fixed | £133 | £1,603 | £100 |
| OVO Energy | 1 Year Fixed + Boiler Cover | Fixed | £139 | £1,667 | £100 |
| British Gas | Fixed Tariff Feb27 | Fixed | £140 | £1,678 | £100 |
| EDF Energy | Simply Tracker Mar27 | Variable | £145 | £1,735 | £50 |
| ScottishPower | Help Beat Cancer Fixed Apr 2027 | Fixed | £147 | £1,762 | £100 |
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Octopus Energy is often the cheapest energy supplier in Windsor.
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Other locations nearby that this information is also likely applicable to includes: Eton, Old Windsor, Wraysbury, Datchet, Virginia Water, Sunningdale, Ascot, Englefield Green, Bracknell and Wokingham.
Who is the best energy supplier in Windsor?
When looking at energy suppliers, it is important not to just focus on price.
Using data from Trustpilot, we have highlighted the best-performing energy suppliers that are available in Windsor below:
| Supplier Name | Reviews Rating | No. Reviews |
|---|---|---|
| Octopus Energy | 4.8 | 750,000+ |
| OVO | 4.6 | 258,000+ |
| EDF Energy | 4.8 | 199,000+ |
| E.ON Next | 4.5 | 187,000+ |
| British Gas | 4.4 | 323,000+ |
What are the maximum standing charges in Windsor?
Your standing charge is a daily fee you must pay to your energy supplier regardless of your energy usage. Under the rules of the Ofgem price cap, a company can charge a maximum amount, which varies depending on where you live.
Windsor falls under the South East area, meaning standing charges are currently capped at 34.67p per day for gas and 48.66p per day for electricity.
This means that whoever your supplier is, these are the maximum amounts they can charge you.
Combined, this gives a maximum standing charge for gas and electricity of 83.33p.
This means that Berkshire is in the area ranked 3rd out of the 14 regions in terms of maximum standing charge rates (14th is highest). The capped price is 7% lower than the average.
These rates are based on the January 2026 price cap.
What are the maximum unit prices in Windsor?
Your unit rate is how much you are charged per unit of gas or electricity you use. These units are measured in kWh.
Similar to standing charges, a supplier can charge a maximum for each unit of gas or electricity, which varies depending on your area.
In Windsor, as it is in the South East, the cap on the unit rate for electricity is 28.27p and the maximum unit rate for gas is 5.82p.
Combined, this gives a maximum unit charge for gas and electricity of 117.42p.
This means that Berkshire is in the area ranked 3rd out of the 14 regions in terms of maximum unit prices (1st is lowest).
The capped rate is 5% lower than the average.
Again, these are based on the January 2026 price cap and will next be updated in April 2026.
What is the average energy usage for a property in Windsor?
Windsor is in the Windsor and Maidenhead local government area.
Gas Usage
In this area, there are 66,000 domestic properties.
57,000 of these properties have a gas meter whilst 9,000 are not connected to the gas grid (approximately 14% of properties).
The total gas usage for this area is 802 GWh, with the average household consuming 14,287 kWh of gas per year.
For context, the area with the highest average gas usage was the Elmbridge District, with 16,182 kWh per year, and the lowest gas usage was the City of Plymouth, with 7,976 kWh per year.
Electricity Usage
In total, there are 64,800 domestic electricity meters in this area.
The total consumption of all meters comes to 261 GWh, with the average household consuming 4,186 kWh of electricity per year.
For context, the area with the highest average electricity usage was the Cotswolds, at 4,947 kWh per year, and the lowest was the South Tyneside District, at 2,527 kWh per year.
How do properties in Windsor rate for energy efficiency?
When it comes to the efficiency of properties, 45% in Windsor and Maidenhead are rated as EPC Band C or above.
The lowest-rated area in the UK (Pendle District) has only 22% of properties rated Band C or above.
In contrast, the best-performing area (Salford) has 65% of properties rated Band C or above.
The average estimated CO2 emissions from these properties is 3.7 tonnes/year for existing properties and 1.4 tonnes/year for new properties.
Combined, the average CO2 emissions for properties in this area are 3 tonnes/year.
When it comes to central heating, the table below shows the main fuel type used for central heating in this area:
| Fuel Type | Percentage |
|---|---|
| Community heating scheme | 3% |
| Electricity | 12% |
| Mains gas | 82% |
| Oil | 2% |
| Other or unknown | 1% |
How is the smart meter rollout going in Windsor?
Smart meters are currently being rolled out across the UK and are available for free to most customers from their energy suppliers.
In Windsor and Maidenhead (which covers Windsor), 51% of meters are smart meters, based on the latest available data from 2023.
Torridge has the lowest percentage of smart meters, with only 46% installed.
In contrast, Chesterfield has the highest percentage of smart meters at 69%.
Which distribution network covers Windsor?
The UK’s energy distribution network is supported by several key companies, each responsible for specific regions. These firms manage the infrastructure, delivering energy to homes and businesses, ensuring a reliable supply.
Due to being based in the South East region, the distributor for Windsor is UK Power Networks.
UK Power Networks operates electricity cables and lines in London, the South East, and East of England, ensuring reliable and safe power. They prioritise climate action, customer service, and community support. While your electricity supplier bills you, a portion funds UK Power Networks for maintaining local power infrastructure.
You could get £50 credit right now!
Octopus Energy is often the cheapest big name energy supplier in Windsor.
Get a free quote in less than 30 seconds plus get £50 credit when you switch.