About Bulb's smart tariff

Our smart tariff is a 'closed beta', which means we're testing it with a small number of members.

On this tariff, there are 2 different rates for electricity:

  • Peak - the most expensive
  • Off-peak - cheaper

These rates reflect the changing demand for electricity during the day. Demand is higher in the late afternoon and early evening than it is overnight. So on the smart tariff, it costs less to use electricity outside of peak hours. On our standard tariff, it costs the same no matter when you use it.

The prices for each rate vary by region. 

The timings are based on Greenwich Mean Time (GMT):

Rate Hours 
Peak 4pm to 7pm weekdays
Off-peak

12am to 4pm, 7pm to 11.59pm

All weekend

During British Summer Time (BST), which is the last Sunday in March, to the last Sunday in October, the hours change to:

Rate Hours 
Peak 5pm to 8pm weekdays
Off-peak

12am to 5pm, 8pm to 11.59pm

All weekend


Smart tariff prices

The peak and off-peak rates vary by region.

All prices include VAT at the applicable rate and are rounded to 2 decimal places. On your statements, VAT will be shown separately. 

Region Peak rate (pence per kWh) Off-peak rate (pence per kWh)

Standing charge
(pence per day)

East England 25.25 12.75 20.56
East Midlands 24.99 12.49 19.00
London 25.11 12.61 19.80
North Wales, Mersey and Cheshire 26.29 13.79 18.74
West Midlands 25.29 12.79 20.41
North East England 25.20 12.70 22.53
North West England 25.20 12.70 19.59
North Scotland 26.05 13.55 22.50
South Scotland 25.15 12.65 20.56
South East England 25.81 13.31 20.01
Southern England 25.18 12.68 20.64
South Wales 26.07 13.57 19.16
South West England 26.35 13.85 20.09
Yorkshire 24.68 12.18 22.6


You can go back to your previous tariff if the smart tariff isn't right for you

To leave the smart tariff, go to the tariff page in your Bulb account where you’ll see an option to ‘Change tariff’.

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