RAB Nuclear Levy

What is The RAB Nuclear Levy? 

The RAB (Regulated Asset Base) nuclear levy is a new government charge that all homes and businesses connected to the UK electricity grid will need to pay.

The levy helps to fund the construction of new nuclear power stations, starting with Sizewell C in Suffolk, as part of the UK's strategy to achieve net-zero emissions by 2050 and help create more stable energy prices over time. 

Who Must Pay The RAB Nuclear Levy?

The RAB nuclear levy applies to all homes and businesses connected to the UK electricity grid.

Energy Intensive Industries (EIIs) can be exempt from the RAB levy if they meet specific criteria and hold valid exemption certificates. Visit the government website to apply for EII exemption if you believe your business qualifies. 

How Much Will The RAB Nuclear Levy Cost Your Business?

The RAB levy currently costs approximately 0.35p – 0.46p per kWh of electricity used. For example, a small business using 10,000 kWh annually will pay around £35 - £46 extra per year.

The total cost depends on how much electricity your business uses. The more electricity your business consumes, the higher your total RAB costs will be.

The levy will be reviewed quarterly and may be changed. 

When Does The RAB Nuclear Levy Start?

The date you will start being charged the RAB levy varies by supplier and depends upon when you agreed your fixed-term electricity contract (if you currently have one). Some suppliers have included the RAB levy within the electricity supply unit rate for contracts that have been agreed since August 2025, however, some have not and will introduce this from 1 December 2025.

Where suppliers have not included the RAB levy within their prices already or you are not in a fixed-term contract, the RAB levy will appear as a separate charge on your electricity bill.

It’s important to monitor for updates from your supplier to see how the RAV levy will apply to you.