Gas & Electricity Changes - 2004 / 2005 / 2006 / 2007 / 2008 / 2009 / 2010

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Here at SimplySwitch we keep track of all the gas and electricity price changes in the UK energy market right back to 2004, so you always have the most up to date information on which energy suppliers are raising or lowering their prices.

Remember that the energy prices and suppliers vary from area to area so you can use our energy price calculator to get an accurate comparison of all the gas and electricity suppliers in your area to find the lowest price.

Energy company Date effective Details
First Utility 13/12/2010 New Tariff, iSave7
Npower 10/12/2010 Price Rise, announced on average 5.1% on Gas and Electricity for core standard tariffs
First Utility 10/12/2010 Withdrawn, iSave6
EDF Energy 30/11/2010 Withdrawn, EcoManager
Age UK 22/11/2010 New Tariff, Age UK Price Protection May 2012
E.On 22/11/2010 New Tariff, Fix Online 9
Scottish Power 19/11/2010 Price Rise, announced on average 8.9% on Electricity and 2% on Gas for core standard tariffs
British Gas 12/11/2010 Price Rise, announced on average 7% on Gas and 7% on Electricity for core standard tariffs
Npower 08/11/2010 Withdrawn, Go Fix 3
Npower 08/11/2010 Withdrawn, Go Fix 3
EDF Energy 08/11/2010 New Tariff, Fixed S@ver
EDF Energy 01/11/2010 New Tariff, EcoManager
LoCO2 Energy 01/11/2010 Price change for Planet, Pocket and Pocket Plus
Southern Electric 29/10/2010 Price increase on standard Gas prices, 9.4% rise and takes affect from 1st December 2010
Scottish Hydro 29/10/2010 Price increase on standard Gas prices, 9.4% rise and takes affect from 1st December 2010
Swalec 29/10/2010 Price increase on standard Gas prices, 9.4% rise and takes affect from 1st December 2010
British Gas 29/10/2010 New Tariff, Energy Smart Price Promise October 2012
E.On 26/10/2010 New Tariff, E.On Save Online 4 - withdrawn, E.On Save Online 3
Atlantic Electric and Gas 22/10/2010 New Tariff, Fixed Price 3
Npower 18/10/2010 New Tariff, Sign Online 20 - withdrawn, Sign Online 19
First Utility 14/10/2010 New Tariff, ISave 5 - withdrawn, ISave 4
Scottish Power 13/10/2010 New Tariff, Capped Price December 2012
British Gas 11/10/2010 New Tariff, Websaver 10 - withdrawn, Websaver 9
E.On 11/10/2010 New Tariff, E.On Track and Saver 7 - withdrawn, E.On Track and Saver 6
EDF Energy 04/10/2010 New Tariff, Annual Fix 4 - withdrawn Annaul Fix 3
Sainsbury's Energy 04/10/2010 New Tariff, Annual Fix 4 - withdrawn Annaul Fix 3
EDF Energy 01/10/2010 Price Rise, on Electricity for Standard
Sainsbury's Energy 01/10/2010 Price Rise, on Electricity for Standard
EDF Energy 01/10/2010 Price Rise, on Electricity for Energy Discount Plan V2 and V3
Sainsbury's Energy 01/10/2010 Price Rise, on Electricity for Energy Discount Plan V2 and V3
EDF Energy 01/10/2010 Price Rise, on Electricity for Online Saver V1, V2, V3, V4, V5 and V6
EDF Energy 01/10/2010 Price Rise, on Electricity for Green
Npower 27/09/2010 New Tariff, Football Saver 2 - withdrawn, Football Saver 1
Npower 27/09/2010 New Tariff, Price Fix 2012 - withdrawn, Price Guarantee
Ovo Energy 24/09/2010 Price Rise, New Energy Fixed and Green Energy Fixed
Ovo Energy 24/09/2010 Price Rise, New Energy variable and Green Energy variable
Southern Electric 15/09/2010 New Tariff, Price Fix 5 March 2012
Scottish Hydro 15/09/2010 New Tariff, Price Fix 5 March 2012
Swalec 15/09/2010 New Tariff, Price Fix 5 March 2012
Scottish Power 06/09/2010 New Tariff, Online Energy Saver 11 - withdrawn, Online Energy Saver 10
Age UK 24/08/2010 New Tariff, Age UK Online
OVO Energy 20/08/2010 Price Rise, New Energy Fixed and Green Energy Fixed
British Gas 20/08/2010 New Tariff, Websaver 9 - withdrawn, Websaver 8
E.On 19/08/2010 New Tariff, Save Online 3 - withdrawn, Save Online 2
Npower 16/08/2010 New Tariff, Go Fix 3
EDF Energy 16/08/2010 New Tariff, Online Saver 7 - withdrawn, Online Saver 6
Sainsbury's Energy 16/08/2010 New Tariff, Online Saver 7 - withdrawn, Online Saver 6
Scottish Power 09/08/2010 New Tariff, Platinum Fixed Energy January 2014
E.On 03/08/2010 New Tariff, Track and Save 6 - withdrawn, Track and Save 5
First Utility 23/07/2010 New Tariff, Smart online saver V4 - withdrawn, Smart online saver V3
First Utility 23/07/2010 New Tariff, ISave 4 - withdrawn, ISave 3
Southern Electric 15/07/2010 New Tariff, Better Plan and Better Plan No standing charge
Scottish Hydro 15/07/2010 New Tariff, Better Plan and Better Plan No standing charge
Swalec 15/07/2010 New Tariff, Better Plan and Better Plan No standing charge
Scottish Power 14/07/2010 New Tariff, Online Saver 10 - withdrawn, Online Saver 9 and Online Energy Reward
Southern Electric 15/07/2010 New Tariff, Better Plan and Better Plan No standing charge
Scottish Power 08/07/2010 New Tariff, Price Tracker October 2011
EDF Energy 06/07/2010 New Tariff, Annual Fix 3 - withdrawn, Annual Fix 2
Sainsbury's Energy 06/07/2010 New Tariff, Annual Fix 3 - withdrawn, Annual Fix 2
Npower 05/07/2010 New Tariff, Sign Online 19 - withdrawn, Sign Online 18
EDF Energy 05/07/2010 New Tariff, Sign Online 19 - withdrawn, Sign Online 18
Npower 05/07/2010 New Tariff, Sign Online 19 - withdrawn, Sign Online 18
Npower 09/03/2010 Price reduction, Gas prices reduced 7% on standard prices
E.On 08/03/2010 Price reduction, Gas prices reduced 6% on standard prices
Scottish and Southern Energy 04/03/2010 Price reduction, Gas prices reduced 4% (Credit/Direct Debit) 7% (gas only) 9% (Prepayment) on standard prices
British Gas 04/02/2010 Price reduction, Gas prices reduced 7% on standard prices
E.On 08/10/2009 Withdrawn, Track and Save V.2 - New tariff, Track and Save V.3
E.On 08/10/2009 New Tariff, Fixed Price V.4
First Utility 02/10/2009 Price reduction, Reduced rates
E.On 02/10/2009 Price Reduction, Discounts increased on Fixonline V.3
Scottish Power 02/10/2009 Price Reduction, Reduced Gas rates for Online Saver V.7 in 6 PES Areas
E.On 28/09/2009 New Tariff, Winter Gas
E.On 24/09/2009 Price Reduction, Discounts increased in East Midlands and Yorkshire on Fixonline V.3
First Utility 10/09/2009 New Tariff, isave all areas apart from Midlands, East Midlands
First Utility 10/09/2009 Price Reduction, Dual Fuel Online Saver
Ovo Energy 09/09/2009 New supplier
Ovo Energy 09/09/2009 New tariffs - New Energy and Green Energy
Scottish Power 09/09/2009 Withdrawn, Discounted Energy July 2011 - New Tariff, Discouned Energy Dec 2011
Scottish Power 09/09/2009 Withdrwn, Capped Price energy - New tariff, Capped Price Energy Sept 2011
Southern Electric 08/09/2009 New Tariff, Go Direct
Swalec 08/09/2009 New Tariff, Go Direct
Scottish Hydro 08/09/2009 New Tariff, Go Direct
First Utility 24/08/2009 Price reduction, Discount raised to 12.5% from 10%
E.On 21/08/2009 New tariff - Fix online V.3
British Gas 20/08/2009 Withdrawn, Websaver V.3 - New Tariff, Websaver V.4
First Utility 17/08/2009 New Tariff, Dual Fuel Online Saver Tariff Midlands,East Midlands Only
British Gas 12/08/2009 New Tariff, Track and Save 2011
E.On 05/08/2009 Withdrawn, Energy Online Extra Saver V.14 - New tariff - SaveOnline
E.On 23/07/2009 New tariff - Energy Saver V.9
Edf Energy 23/07/2009 New Tariff - Online V.5
Npower 20/07/2009 Withdrawn, Sign Online V.15 - New Tariff - Sign Online V.16
Npower 20/07/2009 Withdrawn, Web V.15 - New Tariff - Web V.16
Scottish Power 16/07/2009 Withdrawn, Online Energy Saver V.5 - New Tariff, Online Energy Saver V.6
Utilita 15/07/2009 Price Changes to all tariffs
First utility 10/07/2009 Withdrawn, All Tariffs
E.On 09/07/2009 New Tariff - Discouned Energy V.4
E.On 04/07/2009 Price Reduction on the Standard Prices for gas
Edf Energy 03/07/2009 New Tariff - Annual Fix 3
Edf Energy 03/07/2009 New tariff - Online Saver V2
Spark Energy 03/07/2009 Price Reduction
Scottish Power 25/06/2009 New tariff, Fix n Flex
Scottish Power 22/06/2009 Withdrawn, PriceSure
Scottish Power 11/06/2009 New Tariff, Pay in Advance
E.On 20/05/2009 Withdrawn, Fixonline V.2
E.On 20/05/2009 Withdrawn, Energy Online Extra Saver V.13 - New Tariff Energy Online Extra Saver V.14
British Gas 14/05/2009 New tariff, Price Promise June 2010
E.On 08/05/2009 Price Drop, on Tract and Save Tariffs and Guarantee Tariffs
E.On 07/05/2009 Withdrawn, FixOnline - New Tariff, FixOnline V.2
British Gas 07/05/2009 Price Drop Announcement, Average of 10% off Electricity Prices
British Gas 07/05/2009 Withdrawn, Websaver V.2 - New Tariff, Websaver V.3
Ecotricity 01/05/2009 Price Drop, Standard Electricity prices reduced
Scottish Power 29/04/2009 New tariff, Online Energy Saver 5
E.On 28/04/2009 New tariff, Track and Save V2
E.On 23/04/2009 Withdrawn, Track and Save
E.On 09/04/2009 New tariff, Energy Saver V8
British Gas 06/04/2009 Withdrawn, Price guarantee 2010
NPower 05/04/2009 Withdrawn, Sign Online V.14, New Tariff Sign Online V.15
NPower 05/04/2009 Withdrawn, Web V.14, New Tariff Web V.15
EDF 13/03/2009 Price Drop, Standard Tariff prices reduced
E.On 13/03/2009 New Tariff, Energy Discount V3
E.On 13/03/2009 Withdrawn, Energy Saver V7
Southern Electricity 30/03/2009 Price Drop, Standard Prices Reduced
Scottish Hydro 30/03/2009 Price Drop, Standard Prices Reduced
Swalec 30/03/2009 Price Drop, Standard Prices Reduced
Ebico 30/03/2009 Price Drop, Standard prices reduced
E.On 27/03/2009 New Tariff, FixOnline
Scottish Power 26/03/2009 New Tariff, Discounted Energy July 2010
E.On 16/03/2009 Price Drop Announcement, Standard prices reduced
Npower 16/03/2009 Price Drop, All standard prices reduced
Scottish Power 12/03/2009 New Tariff, Capped Price April 2010
E.On 10/03/2009 Withdrawn, Energy Online Extra Saver V12 - New Tariff, Energy Online Extra Saver V13
Scottish Hydro 04/03/2009 New Tariff, Fixed Price 3 September 2010
Swalec 04/03/2009 New Tariff, Fixed Price 3 September 2010
Southern Electric 04/03/2009 New Tariff, Fixed Price 3 September 2010
First Utility 03/03/2009 Price Drop, on all standard single rates
Ebico 02/03/2009 Price Drop Announcement, Standard prices reduced
British Gas 19/02/2009 New Tariff, Price Guarantee 2010
British Gas 19/02/2009 Withdrawn, Websaver v.1 - New Tariff Websaver v.2
E.On 19/02/2009 Price Drop, Prices for Track and Save and Guarantee products versions 4-6
EDF 06/02/2009 Withdrawn, Annual Fix V.1 - New Tariff Annual Fix V.2
EDF 29/01/2009 New Tariff, Annual Fix V.1
British Gas 22/01/2009 Price Drop Announcement, 10% off Gas Prices (excluding WebSaver)
First Utility 20/01/2009 New Supplier
E.On 15/01/2009 Withdrawn, Energy Online Extra Saver V.11 - New Tariff, Energy Online Extra Saver V.12
British Gas 09/01/2009 Withdrawn, Fixed Price 2012
Scottish Power 05/01/2009 Price Drop, On the Price Sure tariff
British Gas 18/12/2008 Withdrawn, Click Energy V.6 - New Tariff Websaver V.1
E.On 12/12/2008 Withdrawn, Energy Online Extra Saver V.10 - New Tariff, Energy Online Extra Saver V.11
E.On 11/12/2008 Withdrawn, Fixed V.3
E.On 11/12/2008 New Tariff, Track and Save
E.On 11/12/2008 Withdrawn, Energy Saver V.6 - New Tariff, Energy Saver v.7
Scottish Power 28/11/2008 New Tariff, Capped Price Energy
Scottish Power 28/11/2008 New Tariff, PriceSure Energy
British Gas 27/11/2008 Price Drop, Reduced Prices on PAYGE and Click PAYGE
npower 03/11/2008 New Tariff, Sign Online V14 - Withdrawn, Sign Online V13
npower 03/11/2008 New Tariff, Web V14
E.on 01/11/2008 Price Rise, Energy Online Extra Saver V8 range
Scottish Power 24/10/2008 Withdrawn, Discounted Energy and Discounted Energy Online
E.on 16/10/2008 New Tariff, Energy Online Extra Saver V10 - Withdrawn, Energy Online Extra Saver V9
E.on 13/10/2008 New Tariff, Energy Saver V.6 - Withdrawn, Energy Saver V.5
EDF 13/10/2008 New Tariff, Price Protection 2009
EBICo 02/10/2008 Price Rise, All Products
E.on 02/10/2008 New Tariff, Fixed Price V.3
EDF 01/10/2008 New Tariff, Online V6
EDF 01/10/2008 New Tariff, Price Protection 2010
British Gas 30/09/2008 Price Rise, Click Energy V5 35% Gas 9% Electricity
British Gas 30/09/2008 New Tariff, Click Energy V6 - Withdrawn, Click Energy V5
British Gas 18/09/2008 New Tariff, Fixed Price 2012 - Withdrawn, Fixed Price 2011
E.on 16/09/2008 New Tariff, Energy Online Extra Saver V9 - Withdrawn, Energy Online Extra Saver V8
npower 29/08/2008 New Tariff, Price Protector 2010
Utilita 03/09/2008 Price Rise, Removal of the 7.5% Loyalty Discount from EnergySaver
Utility Warehouse 01/09/2008 Price Rise, 33% Gas and 12% Electricity
Union Energy 01/09/2008 Price Rise, 34% Gas and 9% Electricity
npower 29/08/2008 Price Rise, 26% Gas and 14% Electricity
Scottish Power 29/08/2008 Price Rise, 34% Gas and 9% Electricity
Southern Electric 21/08/2008 Price Rise, 29% Gas and 19% Electricity
Scottish Hydro 21/08/2008 Price Rise, 29% Gas and 19% Electricity
Swalec 21/08/2008 Price Rise, 29% Gas and 19% Electricity
Atlantic 21/08/2008 Price Rise, 29% Gas and 19% Electricity
E.on 21/08/2008 Price Rise, 26% Gas and 16 % Electricity
Utilita 15/08/2008 Price Rise, 38.5% Gas
British Gas 30/07/2008 Price Rise, 35% Gas 9% Electricity (with the exception of “Click Energy V5”, “Market Tracker” and “Fixed Price Tariffs”)
British Gas 30/07/2008 Withdrawn, Price Guarantee 2009
British Gas 30/07/2008 New Tariff, Fixed Price 2011
E.on 30/07/2008 Withdrawn, Guarantee v5
Scottish Power 30/07/2008 Withdrawn, Fixed Price Energy 2009
EDF 25/07/2008 Price Rise, 17% Gas, 22% Electricity
EDF 25/07/2008 New Tariff, Price Protection 2009
Npower 24/07/2008 Withdrawn, Npower One
E.on 22/07/2008 New Tariff, Energy Saver V4.
Withdrawn, Energy Saver V3 .
E.on 22/07/2008 New Tariff, Price Protection V17.
Withdrawn, Price Protection V16.
Scottish Hydro 03/07/2008 New tariff, Fixed Discount 2010
Southern Electric 03/07/2008 New tariff, Fixed Discount 2010
Swalec 03/07/2008 New tariff, Fixed Discount 2010
Npower 30/06/2008 New Tariff, Sign Online V12.
Withdrawn, Sign Online V11.
E.on 26/06/2008 New Tariff, Energy Saver V3.
Withdrawn, Energy Saver V2 .
E.on 26/06/2008 New Tariff, Price Protection V16.
Withdrawn, Price Protection V15.
British Gas 24/06/2008 New Tariff, Click Pay as You Go.
Npower 22/06/2008 Withdrawn, Fixed 2011.
Scottish Power 13/06/2008 New Tariff, Fixed Price Energy 2009.
E.on 05/06/2008 New Tariff, Online Extra Saver V7.
Withdrawn, Extra Saver V6.
E.on 02/06/2008 New Tariff, Energy Saver V2.
Withdrawn, Energy Saver V1.
E.on 02/06/2008 New Tariff, Price Protection V15.
Withdrawn, Price Protection V14.
British Gas 03/06/2008 Price Rise, Market Tracker, Average rise of 14.88%.
Utilita 01/06/2008 Price Rise, Price no longer include the £15(incl VAT) Loyalty Discount.
nPower 04/01/2008 Increase of 17.2 percent for gas and 12.7 percent for electricity
Scottish Power 15/06/2007 Decrease of up to 16.5% for gas and up to 5.5% for electricity
EDF Energy 15/06/2007 Decrease of 10.2% for gas
E.ON/Powergen 30/04/2007 Decrease of 16% for gas and 5% for electricity
npower 30/04/2007 Decrease of 16% for gas and average 3% for electricity
British Gas 26/04/2007 Decrease of 3% for gas and 6% for electricity
Scottish and Southern Energy 01/04/2007 Decrease of 5% for electricity bills
British Gas 12/03/2007 Decrease of 11% for electricity and 17% for gas
Scottish and Southern Energy 01/03/2007 Decrease of 12% for gas
Scottish and Southern Energy 01/01/2007 Increase of 9.4% for electricity and 12.2% for gas
npower 01/10/2006 Increase of 9.9% for electricity and 17.2% for gas
EBICo 21/09/2006 Increase of 21.41% electricity and 31.34% for gas
British Gas 04/09/2006 Increase of 9.4% for electricity and 12.4% for gas
E.ON/Powergen 21/08/2006 Increase of 9.7% for electricity and 18.4% for gas
EDF Energy 31/07/2006 Increase of 8% for electricity and 19% for gas
Scottish Power 10/07/2006 Increase of 10% for electricity and 17% for gas
Scottish and Southern Energy 01/05/2006 Increase of 9.4% for electricity and 16.5% for gas
npower 31/03/2006 Increase of 13.4% for electricity and 15% for gas
EDF Energy 13/03/2006 Increase of 4.7% for electricity and 14.7% for gas
E.ON/Powergen 10/03/2006 Increase of 18.4% for electricity and 24.4% for gas
British Gas 01/03/2006 Increase of 22% for electricity and gas
Scottish Power 01/03/2006 Increase of 8% for electricity and 15% for gas
npower 01/01/2006 Increase of 12% for electricity and 13.7% for gas
Scottish and Southern Energy 01/01/2006 Increase of Electricity up between 8.9 and 12%, gas up 13.6%
Scottish Power 17/10/2005 Increase of 5% to 8% for electricity and 12% for gas
British Gas 19/09/2005 Increase of 14.2% for electricity and gas
E.ON/Powergen 31/08/2005 Increase of 7.2% for electricity and 11.9% for gas
EDF Energy 05/08/2005 Increase of 10.7% for electricity and 12% for gas
Atlantic Electric & Gas March to July 2005 Increase of 6.7% for electricity and 9.1% for gas
Scottish and Southern Energy 01/07/2005 Increase of 6.7% for electricity and 9.1% for gas
Scottish Power 01/03/2005 Increase of 8% for electricity and 11.8% for gas (pre payment only)
E.ON/Powergen Age Concern 01/03/2005 Increase of 8.9% for electricity and 9.6% for gas
E.ON/Powergen Energy Online 31/01/2005 Increase of 8.9% for electricity and 9.6% for gas
EDF Energy 17/01/2005 Increase of 5.4 % for electricity and 8.1% for gas
Scottish Power 10/01/2005 Increase of Average 9.64% for electricity and 11.46% for gas
E.ON/Powergen 29/11/2004 Increase of 8.9% for electricity and 9.6% for gas
Scottish Power 01/10/2004 Increase of 8% for electricity and 11.8% for gas
npower 01/10/2004 Increase of 7.6% for electricity and 11.8% for gas - capped until 2006
British Gas 20/09/2004 Increase of 9.4% for electricity and 12.4% for gas
EDF Energy 13/09/2004 Increase of 3.8% for electricity and 3.5% for gas
E.ON/Powergen 06/09/2004 Increase of 3.1% for gas
Scottish Power 09/08/2004 Increase of Online customers brought in-line with off-line customers - 7.9% increase for electricity and 8.8% increase for gas
E.ON/Powergen 13/07/2004 Increase of 1.9% (average) for Staywarm customers
Atlantic Electric & Gas 05/07/2004 Increase of Up to 16% for electricity and 22% for gas
Scottish and Southern Energy 01/07/2004 Increase of 9% on gas for customers who joined before Feb 04 and 4% on gas for customers who joined after Feb 04. Electricity up by 3.7% in England and Wales and 2.9% in Scotland
Scottish Power 01/06/2004 Increase of 5% for gas and electricity - takes effect in Scottish-Hydro, Southern and SWALEC regions
E.ON/Powergen 05/04/2004 Increase of 6% for pre-pay electricity customers and 3.5% for pre-pay gas customers. 6.7% for Age Concern Affinity Gas customers
Scottish Power 01/04/2004 Increase of 5% for gas and electricity - takes effect in London, Midlands, Seeboard, SWEB and Yorkshire regions
npower 01/04/2004 Increase of 5.8% for electricity
Scottish Power 01/03/2004 Increase of 5% for gas and electricity - takes effect in Eastern, East Midlands, Norweb, Manweb and Scottish Power regions
EDF Energy 01/03/2004 Increase of 6.7% for electricity and 4.6% for gas
npower 01/02/2004 Increase of 5.2% for gas
British Gas 01/01/2004 Increase of 6% electricity and gas