Do EV Charging Units Increase Your Electricity Bill?
As electric vehicles become more popular, many homeowners are considering installing EV charging units at home. One of the most common questions people ask is: do EV charging units increase your electricity bill?
The short answer is yes — but usually less than you might expect, and in many cases, it can still be far cheaper than running a petrol or diesel car.
In this guide, C&B Electrical explains how EV charging units affect your electricity costs and how you can keep those costs low.
How EV Charging Units Use Electricity
EV charging units draw power directly from your home’s electrical supply to recharge your vehicle’s battery. The amount of electricity used depends on:
- The size of your EV’s battery
- How often you charge
- The charging speed of your EV charging unit
- Your electricity tariff
Most home EV charging units in the UK are 7kW chargers, which are efficient and well-suited for overnight charging.
How Much Will My Electricity Bill Increase?
On average, fully charging an electric car at home costs £5–£15, depending on your electricity rate and battery size.
For example:
- A 60kWh battery charged at 30p per kWh = around £18
- Off-peak tariffs can reduce this to £6–£10
Compared to fuel costs, charging with home EV charging units is often significantly cheaper per mile.
EV Charging Units vs Public Charging Costs
Public charging stations are convenient but usually far more expensive. Many rapid chargers cost 60–80p per kWh, making home charging with EV charging units the most cost-effective option for most drivers.
By installing a dedicated unit through C&B Electrical, you gain better control over when and how you charge, helping reduce overall running costs.
Ways to Reduce the Impact on Your Electricity Bill
Installing EV charging units doesn’t mean your bill has to spike. Here’s how to keep costs down:
1. Use Off-Peak Tariffs
Many energy providers offer EV-friendly tariffs with cheaper overnight rates.
2. Charge Overnight
Most EV charging units allow scheduled charging so your car charges when electricity is cheapest.
3. Choose an Efficient EV Charging Unit
Modern smart chargers optimise power usage and prevent unnecessary energy waste.
4. Monitor Your Usage
Smart EV charging units provide apps that let you track energy use and costs.
Do EV Charging Units Increase Overall Household Energy Use?
Yes, technically your household electricity consumption will increase. However, when compared to the cost of petrol or diesel, EV charging units often result in lower overall transport costs, even with higher electricity usage.
Many households find the savings on fuel more than offset the increase in their electricity bill.
Are EV Charging Units Worth It?
For most EV owners, the answer is absolutely. Home EV charging units provide:
- Lower running costs
- Convenience and reliability
- Faster charging than standard sockets
- Increased property appeal
When installed professionally, they are a smart long-term investment.
Professional EV Charging Unit Installation by C&B Electrical
At C&B Electrical, we specialise in the supply and installation of high-quality EV charging units for homes and businesses. Our qualified electricians ensure your charger is installed safely, efficiently, and in compliance with all UK regulations.
If you’re considering an EV charger and want expert advice tailored to your property, C&B Electrical is here to help.
Final Thoughts
So, do EV charging units increase your electricity bill?
Yes — but the increase is usually modest and often far outweighed by the savings on fuel and the convenience of charging at home.
With the right charger, tariff, and installation partner like C&B Electrical, EV charging units can be both economical and practical.