The principal terms is a summary of the key parts of the conditions of supply.

If you aren’t sure which conditions apply to your contract, or you agreed your contract before the dates shown below, please contact us.

If you’re on our out of contract (deemed) rates, please see our deemed rates page.

April 2020

These conditions apply to:

All npower Business customers with effect from 1 April 2020

Conditions of supply (PDF, 228KB)

Principal Terms (PDF, 91KB)

May 2018

Until 31 March 2020 these conditions applied to:

Fixed or Variable contracts agreed between 18 May 2018 and 31 March 2020

Flexible contracts with a start date between 21 July 2018 and 31 March 2020

Conditions of supply (PDF, 156KB)

Principal Terms (PDF, 68KB)

All customers are moving to the April 2020 conditions (see above) with effect from 1 April 2020.

June 2017

Until 31 March 2020 these conditions applied to:

Fixed or Variable contracts agreed between 26 June 2017 and 17 May 2018

Flexible contracts with a start date between 29 August 2017 and 20 July 2018

Conditions of supply (PDF, 105KB)

Principal Terms (PDF, 69KB)

All customers are moving to the April 2020 conditions (see above) with effect from 1 April 2020.

November 2016

Until 31 March 2020 these conditions applied to:

Fixed or Variable contracts agreed between 1 November 2016 and 25 June 2017

Flexible contracts with a start date between 4 Jan 2017 and 28 August 2017

Conditions of supply (PDF, 114KB)

Principal Terms (PDF, 86KB)

All customers are moving to the April 2020 conditions (see above) with effect from 1 April 2020.

October 2015

Until 31 March 2020 these conditions applied to:

Fixed or Variable contracts agreed between 1 October 2015 and 31 October 2016

Flexible contracts with a start date between 4 December 2015 and 3 January 2017

Conditions of supply (PDF, 91KB)

Principal Terms (PDF, 65KB)

All customers are moving to the April 2020 conditions (see above) with effect from 1 April 2020.

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