With energy bills remaining a significant concern for many British households, understanding exactly how much your shower contributes to your monthly electricity costs is more important than ever.
Electric showers are popular in the UK because they heat water on demand, are relatively easy to install, and work well in homes without a traditional hot water cylinder. However, their running costs can vary widely depending on usage habits, shower power rating, and your electricity tariff.
In this guide, we break down the real costs of running an electric shower in 2026, the key factors that influence the price, and practical tips to keep costs under control.
Electricity Prices in 2026
As of the current Ofgem energy price cap (1 April to 30 June 2026), the average unit rate for electricity is 24.67p per kWh for households paying by Direct Debit, which remains the most common payment method across the UK.
This rate is a maximum cap set by Ofgem and applies to the vast majority of households on default tariffs, helping to protect consumers from sudden spikes in wholesale energy costs while still allowing some variation depending on supplier pricing structures.
Actual rates may be slightly lower if you are on a fixed tariff or a smart tariff with cheaper off-peak rates, particularly if you are able to shift your usage to times when demand is lower, such as overnight periods or weekends.
Realistic Running Costs for Electric Showers
Electric showers in the UK typically range from 8.5kW to 10.5kW. Here are realistic cost examples based on the current 24.67p per kWh rate:
- 8.5kW shower – 5-minute shower: ≈ 18p per shower
- 9.5kW shower – 8-minute shower: ≈ 31p per shower
- 10.5kW shower – 10-minute shower: ≈ 43p per shower
You can be confident the water will be at the perfect temperature before you step in, transforming everyday routines into something effortless and enjoyable.
Monthly estimates (assuming one shower per day):
| Shower Power | Shower Duration | Cost per Shower | Monthly Cost |
| 8.5kW | 5 mins | 18p | £5.40 |
| 9.5kW | 8 mins | 31p | £9.30 |
| 10.5kW | 10 mins | 43p | £12.90 |
| 10.5kW | 15 mins | 65p | £19.50 |
Figures calculated using the Ofgem April–June 2026 electricity unit rate of 24.67p/kWh.
These costs can increase noticeably if multiple people in the household take long showers or if you prefer very hot water.
What Can That Affect the Cost of Running an Electric Shower?
Several variables determine how much you actually pay:
- Shower Power Rating (kW)
Higher kW showers heat water faster and deliver better pressure, but they use more electricity. A 10.5kW model will cost more per minute than an 8.5kW model. - Shower Duration
This is the biggest factor you can control. Adding just two extra minutes can increase the cost by 20–30% per shower. - Electricity Tariff
Your choice of electricity tariff can have a significant impact on the cost of running an electric shower.
Standard variable tariffs follow the Ofgem price cap, while fixed tariffs or Economy 7 plans can reduce costs considerably if you shower during off-peak hours.
Smart tariffs with agile pricing can offer even lower rates at certain times of the day, depending on wholesale energy prices. - Desired Water Temperature
The hotter the water, the harder the heating element works, increasing electricity consumption. - Water Flow Rate
Higher flow rates (stronger spray) use more water and therefore more energy to heat it.
How To Reduce The Cost Of Your Shower
- Take shorter showers: Reducing from 10 minutes to 6–7 minutes can save over £100 per year for one person.
- Install a water-efficient shower head: Many modern heads maintain a good spray while using less water.
- Use eco or low-power settings: Many Aqualisa electric showers have eco modes that reduce energy consumption.
- Maintain your shower: Descale regularly to keep the heating element working efficiently.
- Consider your tariff: Switching to a better electricity deal or using off-peak times can lower costs.
- Upgrade to a modern model: Newer electric showers are often more energy-efficient and have better insulation. See our electric showers page for our most up to date electric showers.
Are Electric Showers The Most Expensive Showers?
For short showers (under 8 minutes), electric showers are often more cost-effective than running a gas combi boiler just for one person. However, in larger households where the boiler is already running for heating or other hot water uses, a mixer shower connected to the central heating system is usually cheaper overall.
Electric showers also have the advantage of heating only the water you use, making them efficient for occasional or secondary bathroom use.
Running an electric shower typically costs between 20p and 50p per shower for most households, depending on duration and model.
While this adds up over time, modern, well-designed electric showers from Aqualisa offers a good balance of performance, reliability, and efficiency for UK homes.
If your current shower is old and inefficient, upgrading could actually save you money in the long run through better energy performance and fewer repairs.
Speak with our team today to understand the options available to you.
