iSupply Fixed v4

Tariff details for EDF, including contract notes, price ranges and the supporting metadata we currently hold.

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Direct debit supported Cash supported
End date
1 January 1988
Contract length
Not listed months
Electricity code
ERC1_ISUPPLY_FIX_V4
Gas code
GRC1_ISUPPLY_FIX_V4

Tariff overview

iSupply Fixed v4 was a fixed tariff released on 16 December 2025, with an expected end date around 1 January 1988. This tariff is no longer current, but it may still be useful if you are checking an older bill, reviewing a previous deal, or trying to understand what tariff you were on before moving elsewhere.

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Contract snapshot

Contract length
Not listed months
Exit fee
£Not listed
Smart meter
Not required or not listed
Cash payments
Supported

Price ranges by region

These summaries show the range of rates we currently hold across regions, rather than one national figure.

Electricity

Regions listed: 14

Direct debit standing charge: 20.74p to 25.24p

Direct debit unit rate: 16.17p to 18.03p

Cash standing charge: 20.74p to 25.24p

Cash unit rate: 16.17p to 18.03p

Gas

Regions listed: 12

Direct debit standing charge: 16.32p

Direct debit unit rate: 3.28p to 3.52p

Cash standing charge: 16.32p

Cash unit rate: 3.28p to 3.52p

Multi-rate electricity

Regions listed: 14

Direct debit standing charge: 20.03p to 22.76p

Direct debit day rate: 16.25p to 19.99p

Direct debit night rate: 11.04p to 13.64p

Cash day rate: 16.25p to 19.99p

Cash night rate: 11.04p to 13.64p

Terms

Terms content has not been added yet.

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