Price updates
When comparing suppliers, a common concern is when did a supplier last change their prices.
This table provides details of all movements in prices and the introduction and cessation of tariffs over the last year.
You can see the date the change was added to the calculator and when it became effective.
Date when last update applied: 6th February 2012
| Supplier | Date Updated | Date Effective | Details |
| E.ON Energy | 27.01.2012 | 27.02.2012 | New reduced electricity prices, average 6% reduction. |
| ScottishPower | 02.02.2012 | 27.02.2012 | Launch of new reduced gas prices |
| Ecotricity | 06.02.2012 | 27.02.2012 | New Energy and New Energy Plus prices updated in areas 10, 11 and 16 |
| EDF Energy | 24.01.2012 | 07.02.2012 | New reduced gas prices for Standard (Variable), Energy Assist and Energy Discount Plan v4 and v5 |
| npower | 23.01.2012 | 01.02.2012 | New reduced gas prices for standard, capped and prepayment tariffs |
| E.ON Energy | 01.02.2012 | 01.02.2012 | Launch of E.ON Track and Save 12 and removal of E.ON Track and Save 11 |
| Co-operative Energy | 01.02.2012 | 01.02.2012 | Launch of Cash/Cheque versions of Pioneer tariffs |
| nPower | 23.01.2012 | 23.01.2012 | Launch of Bill Saver May 2013 |
| nPower | 23.01.2012 | 23.01.2012 | Launch of Energy Discount December 2013 |
| nPower | 23.01.2012 | 23.01.2012 | Removal of Flex Saver Feb. 2013 from sale |
| EDF Energy | 13.01.2012 | 13.01.2012 | Launch of Fix to March 2013 and removal of Price Protection 2013 |
| ScottishPower | 13.01.2012 | 13.01.2012 | Launch of Online Fixed Price Energy May 2013 and removal of Online Fixed Energy April 2013 |
| British Gas | 12.01.2012 | 12.01.2012 | Reduction in electricity prices across all 'standard' type products. |
| ScottishPower | 12.01.2012 | 12.01.2012 | removal of Online Energy saver 17 tariff from sale |
| SSE | 12.01.2012 | 12.01.2012 | removal of Price Fix 7 tariff from sale |
| OVO Energy | 06.01.2012 | 06.01.2012 | Fixed Price tariffs reduced in cost |
| E.On | 05.01.2012 | 05.01.2012 | Launch of E.ON Fixed Price Saver April 2013 and removal of E.ON Fixed Price April 2013 |
| npower | 28.12.2011 | 28.12.2011 | Launch of Go-Fix 10 and removal of Go-Fix 8 from sale |
| npower | 23.12.2011 | 23.12.2011 | Removal Football Online |
| npower | 19.12.2011 | 19.12.2011 | Launch of Sign Online 25 |
| Cooperative Energy | 19.12.2011 | 19.12.2011 | Reduction in energy prices |
| EDF Energy | 01.12.2011 | 01.12.2011 | Standard tariff renamed to Standard (Variable) |
| British Gas | 17.11.2011 | 17.11.2011 | Launch of Energy Online |
| ScottishPower | 17.11.2011 | 17.11.2011 | Launch of Launch of Online Fixed Energy April 2013 and removal of Online Fixed Energy Jan 2013 |
| E.On | 08.11.2011 | 08.11.2011 | E.ON launch of E.ON Save Online 11 and removal of E.ON Save Online 10 |
| First Utility | 04.11.2011 | 04.11.2011 | Launch of iSave v9 |
| British Gas | 03.11.2011 | 03.11.2011 | Removal of WebSaver13 from the market. |
| OVO Energy | 26.10.2011 | 26.10.2011 | New rates for all Fixed Price Tariffs. |
| SSE | 25.10.2011 | 25.10.2011 | Standard Energy Online withdrawn from sale on all regional brands Southern Electric, Scottish Hydro, SWALEC and SSE) |
| npower | 19.10.2011 | 19.10.2011 | Launch of Football Online tariff |
| Green Energy Uk | 19.10.2011 | 19.10.2011 | Update of all electricity prices |
| Green Energy Uk | 19.10.2011 | 19.10.2011 | Update of all electricity prices |
| npower | 17.10.2011 | 17.10.2011 | Bill Saver tariff removed from sale |
| npower | 17.10.2011 | 17.10.2011 | Launch of Flex Saver Feb 2013 |
| ScottishPower | 06.10.2011 | 06.10.2011 | Launch of Online Fixed Price Energy January 2013 |
| ScottishPower | 05.10.2011 | 05.10.2011 | Launch of Platinum Fixed Energy October 2013 (v5) |
| ScottishPower | 04.10.2011 | 04.10.2011 | Removal of Online Fixed Price Energy December 2012 |
| ScottishPower | 03.10.2011 | 03.10.2011 | Removal of Online Energy Saver 15 from sale |
| ScottishPower | 03.10.2011 | 03.10.2011 | Launch of Online Energy Saver 16 |
| EDF Energy | 30.09.2011 | 30.09.2011 | Launch of Price Protection 2013 |
| EDF Energy | 30.09.2011 | 30.09.2011 | Launch of Price Protection 2014 |
| Co-operative Energy | 29.09.2011 | 29.09.2011 | Launch of new gas and electricity prices (v3.0) |
| Telecom Plus | 27.09.2011 | 27.09.2011 | Various reductions across all tariffs in certain areas to maintain their triple value gaurantee |
| Spark Energy | 27.09.2011 | 27.09.2011 | Launch of new standard tariff prices |
| npower | 26.09.2011 | 26.09.2011 | Launch of Go-Fix 8 and removal of Go-Fix 7 from sale |
| npower | 26.09.2011 | 26.09.2011 | Launch of SignOnline 24 and removal of SignOnline 23 |
| E.On Energy | 20.09.2011 | 20.09.2011 | Launch of E.ON SaveOnline 10 and removal of E.ON SaveOnline 9 |
| British Gas | 20.09.2011 | 20.09.2011 | Launch of WebSaver 13 and removal of Websaver 12 |
| British Gas | 20.09.2011 | 20.09.2011 | Launch of Online Saver 4 and launch of Online Saver 5 |
| British Gas | 20.09.2011 | 20.09.2011 | Launch of Online Fixed |
| EDF Energy | 15.09.2011 | 15.09.2011 | Launch of new domestic gas and electricity prices |
| ScottishPower | 14.09.2011 | 14.09.2011 | Launch of Online Fixed Price Energy December 2012 |
| ScottishPower | 14.09.2011 | 14.09.2011 | Launch of Online Energy Saver 15 |
| Telecom Plus | 09.09.2011 | 09.09.2011 | Update of prepayment tariff prices |
| ScottishPower | 29.08.2011 | 29.08.2011 | ScottishPower launch Fixed Saver April 2013 |
| Ecotricity | 24.08.2011 | 24.08.2011 | New gas and electricity prices launched |
| British Gas | 24.08.2011 | 24.08.2011 | Price Promise March 2013 removed from sale |
| ScottishPower | 19.08.2011 | 19.08.2011 | Launch of Online Fixed Saver December 2012 |
| LoCo2 Energy | 19.08.2011 | 19.08.2011 | Launch of new prices for Pocket, Pocket+ and Planet tariffs. |
| ScottishPower | 17.08.2011 | 17.08.2011 | Online Fixed Saver 2012 removed from sale |
| npower | 16.08.2011 | 16.08.2011 | Variable gas prices increased by 15.7% and electricity by 7.2% |
| npower | 16.08.2011 | 16.08.2011 | Launch of Winter Fix |
| EDF Energy | 15.08.2011 | 15.08.2011 | Launch of Fix for 2012 |
| EDF Energy | 15.08.2011 | 15.08.2011 | Removal of Fixed S@ver v2 and Online S@ver v12 |
| Telecom Plus | 15.08.2011 | 15.08.2011 | Update of all gas and electricity tariffs |
| OVO Energy | 12.08.2011 | 12.08.2011 | New prices launched for gas and electricity |
| npower | 08.08.2011 | 08.08.2011 | Launch of Go-Fix 7 |
| E.On Energy | 05.08.2011 | 05.08.2011 | E.ON have increased gas prices by 18.1% and electricity prices by 11.4% |
| ScottishPower | 01.08.2011 | 01.08.2011 | Launch of Discounted Energy October 2013, Simply Green Energy and Platinum Fixed Energy January 2014 (v4) |
| SSE | 21.07.2011 | 21.07.2011 | Gas increased across all variable tariffs by an average of 18% and electricity by 11% |
| EBICo | 21.07.2011 | 21.07.2011 | Gas increased across all variable tariffs by an average of 18% and electricity by 11% |
| ScottishPower | 13.07.2011 | 13.07.2011 | Online Energy Saver 14 has been removed from sale |
| British Gas | 08.07.2011 | 08.07.2011 | Gas prices increased by an average of 18% and electricity by an average of 16% on these tariffs WebSaver 8, 9, 10 , 11 and 12; Online Saver 2, 3 and 4; Standard; Standard Pay As You Go; Future Energy; EnergyShare; 4% Discount Tracker; Essentials; Market Monitor; Discount Saver 2012 |
| British Gas | 08.07.2011 | 08.07.2011 | Launch of Price Promise March 2013 |
| E.ON Energy | 08.07.2011 | 08.07.2011 | Launch of Age UK Fixed Price July 2013 |
| E.ON Energy | 08.07.2011 | 08.07.2011 | Removal of Age UK Price Protection April 2013 from sale |
| E.ON Energy | 08.07.2011 | 08.07.2011 | Removal of E.ON Track and Save 10 from sale |
| ScottishPower | 05.07.2011 | 05.07.2011 | Launch of Unifi Capped Energy January 2014 |
| ScottishPower | 05.07.2011 | 05.07.2011 | Launch of Capped Energy January 2014 |
| npower | 04.07.2011 | 04.07.2011 | Launch of SignOnline 23 |
| npower | 04.07.2011 | 04.07.2011 | Launch of Price Fix 2013 |
| EON Energy | 01.07.2011 | 01.07.2011 | Launch of E.ON SaveOnline 8 and removal of E.ON SaveOnline 7 |
| EON Energy | 01.07.2011 | 01.07.2011 | E.ON Track and Save 10 and removal of E.ON Track and Save 9 |
| npower | 29.06.2011 | 29.06.2011 | Price Protector extended to cap prices to end of Aug 2012 and removal of cancellation fees |
| EDF Energy | 27.06.2011 | 27.06.2011 | Launch of Energy Discount Plan v5 |
| ScottishPower | 22.06.2011 | 22.06.2011 | Removal of ScottishPower Direct October 2012 from sale. |
| SSE | 15.06.2011 | 15.06.2011 | Launch of Price Fix 6 tariff |
| npower | 13.06.2011 | 13.06.2011 | Launch of Football 45 tariff. |
| npower | 13.06.2011 | 13.06.2011 | Launch of Bill Saver tariff. |
| npower | 10.06.2011 | 10.06.2011 | Re-launch of Price Protector tariff |
| npower | 10.06.2011 | 10.06.2011 | Re-launch of National Trust product to be available as Dual fuel with Green Energy Bonus and also available as Single fuel electricity |
| OVO Energy | 09.06.2011 | 09.06.2011 | Update of variable tariff prices. |
| ScottishPower | 07.06.2011 | 07.06.2011 | Gas and electric prices increased by 19% and 10% respectively affecting Standard, No Standard Charge, Online Energy - Standard and Online Energy - No Standing Charge |
| ScottishPower | 07.06.2011 | 07.06.2011 | Launch of Fixed Price Energy January 2015 tariff |
| ScottishPower | 07.06.2011 | 07.06.2011 | Launch of ScottishPower Direct October 2012 tariff |
| EDF Energy | 06.06.2011 | 06.06.2011 | Launch of Online S@ver v10 |
| ScottishPower | 06.06.2011 | 06.06.2011 | Discounted Energy March 2013 has been removed from sale. |
| Co-operative Energy | 27.05.2011 | 27.05.2011 | Update on the Pioneer tariff. |
| British Gas | 25.05.2011 | 25.05.2011 | Launch of Energyshare tariff |
| E.ON Energy | 24.05.2011 | 24.05.2011 | Launch of E.ON Fixed Price 5 |
| E.ON Energy | 24.05.2011 | 24.05.2011 | Removal of E.ON Price Protection 2013 |
| British Gas | 19.05.2011 | 19.05.2011 | Launch OF WebSaver 12 and removal of WebSaver 11 |
| ScottishPower | 11.05.2011 | 11.05.2011 | Launch of Platinum Fixed January 2014 v3 |
| British Gas | 10.05.2011 | 10.05.2011 | Launch of OnlineSaver 4 and removal of OnlineSaver 3 |
| ScottishPower | 10.05.2011 | 10.05.2011 | Removal of Simply Green Energy from sale |
| ScottishPower | 10.05.2011 | 10.05.2011 | Removal of Platinum Fixed January 2014 v2 |
| npower | 09.05.2011 | 09.05.2011 | launch of Go-Fix 6 and removal of Go-Fix 5 from sale |
| Green Energy UK | 01.05.2011 | 01.05.2011 | Prices updated across all areas. |
| E.ON Energy | 28.04.2011 | 28.04.2011 | Launch of E.ON SaveOnline 7 and removal of E.ON SaveOnline 6 from sale. |
| ScottishPower | 26.04.2011 | 26.04.2011 | Launch of Online Energy Saver 14 and removal of Online Saver 13 |
| EDF Energy | 18.04.2011 | 18.04.2011 | Launch of Online S@ver Version 12 |
| EDF Energy | 18.04.2011 | 18.04.2011 | Launch of Fixed Price 2014 |
| Cooperative Energy | 13.04.2011 | 13.04.2011 | Update of Pioneer tariff prices across all areas. |
| npower | 11.04.2011 | 11.04.2011 | Launch of Sign Online 22 (SOL22) |
| EDF Energy | 11.04.2011 | 11.04.2011 | Launch of Fixed S@ver Version 2 |
| EDF Energy | 07.04.2011 | 07.04.2011 | Removal of Fixed Price 2015 from sale |
| Telecom Plus | 23.03.2011 | 01.04.2011 | Launch of new prices |
| npower | 01.04.2011 | 01.04.2011 | Removal of Sign Online 21 |
| Utilita | 01.04.2011 | 01.04.2011 | Update of getsmart tariff |
| first:utility | 01.04.2011 | 01.04.2011 | Removal of iSave V7 and launch of iSave V8 |
| first:utility | 01.04.2011 | 01.04.2011 | Removal of Smart as Standard V1 and launch of Smart as Standard V2 |
| EDF Energy | 01.04.2011 | 01.04.2011 | removal of Fixed S@ver tariff from sale |
| npower | 01.04.2011 | 01.04.2011 | removal of TRIO tariff |
| ScottishPower | 01.04.2011 | 01.04.2011 | Launch of Discounted Energy March 2013 |
| E.ON Energy | 31.03.2011 | 31.03.2011 | Launch of E.ON SaveOnline 6 and removal of E.ON SaveOnline 5 from sale. |
| British Gas | 25.03.2011 | 25.03.2011 | Update of standard electricity prices across areas 12, 13 and 18 |
| ScottishPower | 25.03.2011 | 25.03.2011 | Removal of Discounted Energy March 2012 |
| SSE | 24.03.2011 | 24.03.2011 | Removal of Go Direct 5 tariff |
| EDF Energy | 23.03.2011 | 23.03.2011 | Removal of Online S@ver 9 |
| LoCO2 Energy | 17.03.2011 | 17.03.2011 | Removal of Pocket Fixed tariff |
| SSE | 17.03.2011 | 17.03.2011 | Removal of Atlantic Fixed Price 4. |
| ScottishPower | 17.03.2011 | 17.03.2011 | Removal of Platinum Fixed Energy January 2014 from sale. |
| SSE | 11.03.2011 | 11.03.2011 | Update of electricity prices in areas 12, 13 and 18 |
| npower | 07.03.2011 | 07.03.2011 | Launch of Price Protector |
| OVO Energy | 04.03.2011 | 04.03.2011 | Update of gas prices |
| EDF Energy | 04.03.2011 | 04.03.2011 | Removal of Online S@ver 8 |
| E.ON Energy | 07.03.2011 | 04.03.2011 | New revised prices for Track and Save v4 - 8 and Guarantee v4 |
| EDF Energy | 03.02.2011 | 02.03.2011 | Launch of new gas and electricity prices and tariff structure |
| npower | 28.02.2011 | 28.02.2011 | Launch of Go-Fix 5 |
| British Gas | 23.02.2011 | 23.02.2011 | Launch of WebSaver 11 and removal of WebSaver 10 |
| British Gas | 23.02.2011 | 23.02.2011 | Removal of Price Promise October 2012 |
| British Gas | 23.02.2011 | 23.02.2011 | update of standard electricity prices in regions regions 11, 12, 13, 14, 15, 16, 18, 19, 20, 21 and 22 for Standard, Online Saver, Online Saver 2, Online Saver 3, Future Energy and Future Energy Plus tariffs. |
| SSE | 22.02.2011 | 22.02.2011 | Launch of Atlantic Fixed Price 4 |
| EDF Energy | 18.02.2011 | 18.02.2011 | Launch of Online S@ver Version 9 |
| ScottishPower | 18.02.2011 | 18.02.2011 | Launch of Online Saver 13 and removal of Online Saver 12 from sale |
| OVO Energy | 11.02.2011 | 11.02.2011 | Updated of Fixed Energy Prices |
| ScottishPower | 09.02.2011 | 09.02.2011 | Launch of new version of Capped Price June 2013 |
| Sainsbury's Energy | 09.02.2011 | 09.02.2011 | Launch of Orange tariff |
| ScottishPower | 08.02.2011 | 08.02.2011 | Removal of Capped Price June 2013 from sale |
| E.ON Energy | 10.01.2011 | 04.02.2011 | Increase in gas and electricity products across non fixed or capped products. |
| SSE | 04.02.2011 | 04.02.2011 | Removal of Atlantic Fixed Price 3 |
| Atlantic Electric and Gas | 04.02.2011 | 04.02.2011 | Removal of Atlantic Fixed Price 3 from sale |
| Telecom Plus | 01.02.2011 | 01.02.2011 | Launch of new electricity and gas prices |
| npower | 31.01.2011 | 31.01.2011 | Launch of Trio Tariff |
| npower | 31.01.2011 | 31.01.2011 | Launch of Football Saver v3 and removal of Football Saver v2 from sale |
| E.ON Energy | 21.01.2011 | 21.01.2011 | Launch of Track and Save v8 |
| E.ON Energy | 21.01.2011 | 21.01.2011 | Launch of Age UK Price Protection 2013 |
| ScottishPower | 20.01.2011 | 20.01.2011 | Launch of Capped Price June 2013 |
| EDF Energy | 18.01.2011 | 18.01.2011 | Launch of Fixed Price 2013 |
| E.ON Energy | 11.01.2011 | 11.01.2011 | Launch of E.ON SaveOnline 5 and removal of E.ON SaveOnline 4 |
| OVO Energy | 10.01.2011 | 10.01.2011 | Launch of new variable prices |
| EDF Energy | 10.01.2011 | 10.01.2011 | Launch of Annual Fix v1 and removal of Annual Fix v4 |
| E.ON Energy | 10.01.2011 | 10.01.2011 | Update to the prices of E.ON Track and Save 4, 5, 6, 7 and E.ON Energy Guarantee 4 |
| npower | 10.12.2010 | 04.01.2011 | Gas and Electricity Prices increased by an average of 5.89% |
| npower | 04.01.2011 | 04.01.2011 | Launch of Sign Online 21 and removal of Sign Online 20 |
| LoCo2 | 15.12.2010 | 01.01.2011 | Update of all prices and launch of Pocket Fixed tariff |
| SSE | 22.12.2010 | 22.12.2010 | Launch of Welsh Rugby tariff |
| SSE | 16.12.2010 | 16.12.2010 | Launch of iplan tariff |
| EDF Energy | 14.12.2010 | 14.12.2010 | Launch of Online Energy S@ver v8 |
| first:utility | 13.12.2010 | 13.12.2010 | launch of iSave v7 |
| Spark Energy | 10.12.2010 | 10.12.2010 | Standard Plus tariffs all updated |
| first:utility | 10.12.2010 | 10.12.2010 | Removal of iSave 6 from sale |
| SSE | 09.12.2010 | 09.12.2010 | Launch of oplan tariff |
| OVO Energy | 06.12.2010 | 06.12.2010 | New prices announced |
| SSE | 06.12.2010 | 06.12.2010 | Southern Electric brand now replaced by SSE in East Midlands/Midlands/Northern/NORWEB and Yorkshire areas |
| Telecom Plus | 01.12.2010 | 01.12.2010 | Telecom Plus - all gas rates updated |
| EDF Energy | 29.11.2010 | 29.11.2010 | Launch of Energy Discount Plan v4 and removal of v3 from sale. |
| ScottishPower | 26.11.2010 | 26.11.2010 | Launch of Online Energy Saver 12 and removal of Online Energy Saver 11 |
| ScottishPower | 19.11.2010 | 25.11.2010 | Gas Prices to increase by an average of 2%, electricity prices increase by an average of 8.9% |
| ScottishPower | 25.11.2010 | 25.11.2010 | Launch of the Discounted Energy March 2012 tariff. |
| ScottishPower | 24.11.2010 | 24.11.2010 | Price Tracker October 2011 tariff removed from sale. |
| E.ON Energy | 22.11.2010 | 22.11.2010 | Launch of Age UK Price Protection 2012 |
| First Utility | 22.11.2010 | 22.11.2010 | Launch of iSave 6 and removal of iSave 5 |
| E.ON Energy | 22.11.2010 | 22.11.2010 | Launch of E.ON FixOnline 9 |
| EDF Energy | 19.11.2010 | 19.11.2010 | EcoManager tariff removed from sale |
| British Gas | 12.11.2010 | 12.11.2010 | Gas and electricity prices increased by circa. 7% : Standard tariff, Future Energy tariff, Future Energy Plus tariff, WebSaver 10 tariff and Online Saver 3 tariff |
| EDF Energy | 08.11.2010 | 08.11.2010 | Launch of Fixed S@ver tariff |
| npower | 08.11.2010 | 08.11.2010 | Removal of Go-Fix 3 from sale |
| SSE Group | 29.10.2010 | 01.11.2010 | Gas prices increased and structure changed across all non fixed tariffs |
| first:utility | 28.10.2010 | 28.10.2010 | Launch of Smart as Standard v1 tariff |
| E.ON | 26.10.2010 | 26.10.2010 | EON launch of SaveOnline v4 and removal of SaveOnline v3. |
| Atlantic Electric and Gas | 22.10.2010 | 22.10.2010 | Launch of Atlantic Fixed Price 3 |
| Utilita | 22.10.2010 | 22.10.2010 | removal of energysaverplus and planetsaver |
| npower | 18.10.2010 | 18.10.2010 | Removal of Sign Online 19 and launch of Sign Online 20 |
| first:utility | 14.10.2010 | 14.10.2010 | Removal of iSave 4 and launch of iSave 5 |
| ScottishPower | 13.10.2010 | 13.10.2010 | Launch of Capped Price Energy December 2012 |
| ScottishPower | 12.10.2010 | 12.10.2010 | Removal of Capped Price Energy June 2012 |
| E.ON Energy | 11.10.2010 | 11.10.2010 | Removal of Track and Save v6 and launch of Track and Save v7 |
| British Gas | 11.10.2010 | 11.10.2010 | Launch of WebSaver10 and removal of WebSaver9 |
| EDF Energy | 04.10.2010 | 04.10.2010 | Launch of Annual Fix v4 and removal of Annual Fix v3 |
| EDF Energy | 01.09.2010 | 01.10.2010 | New prices launched for tariffs including Standard, Green, Climate Balance, Eco20:20, Energy Discount Plan v2, Energy Discount Plan v3, Energy Assist, Online 1 - 6 and Online Saver v1 |
| EDF Energy | 01.10.2010 | 01.10.2010 | Alignment of Online Saver 2 prices to reflect standard prices |
| npower | 27.09.2010 | 27.09.2010 | Launch of Football Saver 2 and Price Fix 2012. Removal of Price Guarantee and Football Saver |
| OVO Energy | 24.09.2010 | 24.09.2010 | Launch of new tariff prices |
| E.ON Energy | 23.09.2010 | 23.09.2010 | Launch of reduced E7 Prices and increase in no mains gas discount. |
| Scottish Hydro-Electric | 15.09.2010 | 15.09.2010 | Removal of Price Fix4 August 2011 and launch of Price Fix5 March 2012 |
| SWALEC | 15.09.2010 | 15.09.2010 | Removal of Price Fix4 August 2011 and launch pf Price Fix5 March 2012 |
| Southern Electric | 15.09.2010 | 15.09.2010 | Removal of Price Fix4 August 2011 and launch pf Price Fix5 March 2012 |
| ScottishPower | 06.09.2010 | 06.09.2010 | Removal of Online Energy Saver 10 and launch of Online Energy Saver 11 |
| E.ON Energy | 24.08.2010 | 24.08.2010 | Launch of Age UK Online |
| OVO Energy | 21.08.2010 | 21.08.2010 | Launch of new prices for both New Energy and Green Energy |
| British Gas | 20.08.2010 | 20.08.2010 | Launch of WebSaver 9 and removal of WebSaver 8 from the market. |
| E.ON Energy | 19.08.2010 | 19.08.2010 | Launch of E.ON SaveOnline 3 |
| npower | 16.08.2010 | 16.08.2010 | Launch of Go-Fix 3 |
| EDF Energy | 16.08.2010 | 16.08.2010 | Launch of Online Saver v7 and removal of Online Saver v6 |
| Sainsbury Energy | 16.08.2010 | 16.08.2010 | Launch of Online Saver v7 |
| ScottishPower | 09.08.2010 | 09.08.2010 | Launch of Platinum Fixed Energy January 2014 |
| npower | 09.08.2010 | 09.08.2010 | Removal of GoFix 2 for any new customers |
| E.ON | 03.08.2010 | 03.08.2010 | Removal of E.ON Track and Save 5 and launch of E.ON Track and Save 6 |
| first:utility | 26.07.2010 | 26.07.2010 | Removal of Smart online saver V4 and launch of Smart online saver V5 |
| first:utility | 26.07.2010 | 26.07.2010 | Removal of iSave V3.2 and launch of iSave V4 |
| ScottishPower | 16.07.2010 | 16.07.2010 | Removal of Online Energy Saver 9 and launch of Online Energy Saver 10 |
| ScottishPower | 15.07.2010 | 15.07.2010 | Removal of Online Energy Reward |
| Scottish Hydro-Electric | 15.07.2010 | 15.07.2010 | betterplan renamed betterplan plus 2010 and launch of new version of betterplan |
| SWALEC | 15.07.2010 | 15.07.2010 | betterplan renamed betterplan plus 2010 and launch of new version of betterplan |
| Southern Electric | 15.07.2010 | 15.07.2010 | betterplan renamed betterplan plus 2010 and launch of new version of betterplan |
| ScottishPower | 08.07.2010 | 08.07.2010 | Launch of Price Tracker October 2011 |
| Sainsbury's Energy | 05.07.2010 | 05.07.2010 | Launch of Energy Discount Plan v3 |
| EDF Energy | 05.07.2010 | 05.07.2010 | Launch of Annual Fix v3 |
| EDF Energy | 05.07.2010 | 05.07.2010 | Launch of Energy Discount Plan v3 |
| npower | 05.07.2010 | 05.07.2010 | Launch of Sign Online 19 and removal of Sign Online 18 |
| Sainsbury's Energy | 05.07.2010 | 05.07.2010 | Launch of Annual Fix v3 |
| EON | 02.07.2010 | 02.07.2010 | Removal of Fix Online v8 |
| EON | 02.07.2010 | 02.07.2010 | Launch of SaveOnline v2 |
| EDF Energy | 28.06.2010 | 28.06.2010 | Removal of Online Saver v5 |
| British Gas | 17.06.2010 | 17.06.2010 | Launch of WebSaver8 and removal of WebSaver7 |
| npower | 17.06.2010 | 17.06.2010 | Launch of Football Saver |
| Swalec | 10.06.2010 | 10.06.2010 | removal of Go Direct 4 and launch of Go Direct 5 |
| Scottish Hydro-Electric | 10.06.2010 | 10.06.2010 | removal of Go Direct 4 and launch of Go Direct 5 |
| Southern Electric | 10.06.2010 | 10.06.2010 | removal of Go Direct 4 and launch of Go Direct 5 |
| Good Energy | 04.06.2010 | 04.06.2010 | Green and Gold removed from sale |
| Good Energy | 04.06.2010 | 04.06.2010 | 100% Renewable Energy renamed simply 'Good Energy' |
| E.ON | 03.06.2010 | 03.06.2010 | Launch of Track and Save V5 and removal of Track and Save V4 |
| ScottishPower | 17.05.2010 | 17.05.2010 | Relaunch of Online Saver Version 9 |
| E.ON | 04.05.2010 | 04.05.2010 | Launch of Age UK Online Saver |
| npower | 04.05.2010 | 04.05.2010 | Launch of Go Fix 2 |
| LoCo2 | 29.04.2010 | 29.04.2010 | Removal of Pocket Saver Fixed Tariff from the market |
| ScottishPower | 28.04.2010 | 28.04.2010 | Launch of Capped Price June 2012 |
| ScottishPower | 28.04.2010 | 28.04.2010 | Launch of Discounted Energy Aug 2011 |
| ScottishPower | 28.04.2010 | 28.04.2010 | Launched Online Energy Reward |
| OVO Energy | 27.04.2010 | 27.04.2010 | Launch of new gas and electricity prices |
| OVO Energy | 27.04.2010 | 27.04.2010 | Removal of all variable rate tariffs. |
| E.ON | 16.04.2010 | 16.04.2010 | Launch of FixOnline v8 and removal of FixOnlin v7 |
| British Gas | 09.04.2010 | 09.04.2010 | Removal of Online Saver and launch of Online Saver 2 |
| British Gas | 09.04.2010 | 09.04.2010 | Removal of WebSaver 6 and launch of WebSaver 7 |
| E.ON Energy | 07.04.2010 | 07.04.2010 | Updates to Track and Save V1,2,3 and 4 |
| E.ON Energy | 07.04.2010 | 07.04.2010 | Updates to Energy Guarantee V4 and 5 |
| npower | 06.04.2010 | 06.04.2010 | Removal of SOL17 and launch of SOL18 |
| npower | 06.04.2010 | 06.04.2010 | Launch of Price Guarantee tariff |
| Telecom Plus | 01.04.2010 | 01.04.2010 | Update of gas prices across all tariffs. |
| Southern Electric | 30.03.2010 | 30.03.2010 | Removal of Go Direct 3 and launch of Go Direct 4 |
| SWALEC | 30.03.2010 | 30.03.2010 | Removal of Go Direct 3 and launch of Go Direct 4 |
| Scottish Hydro-Electric | 30.03.2010 | 30.03.2010 | Removal of Go Direct 3 and launch of Go Direct 4 |
| ScottishPower | 29.03.2010 | 29.03.2010 | Reduction is gas prices on Standard tariffs. |
| E.ON Energy | 25.03.2010 | 25.03.2010 | Launch of Fix Online v7 and removal of v6 for new customers. |
| OVO Energy | 24.03.2010 | 24.03.2010 | Launch of new variable rate tariff. |
| OVO Energy | 24.03.2010 | 24.03.2010 | Reduction in gas prices on existing tariffs. |
| Atlantic Electric and Gas | 12.03.2010 | 12.03.2010 | Launch of Atlantic FP September 2011, replacing the existing March 2011 Atlantic Online FP version |
| first:utility | 12.03.2010 | 12.03.2010 | Update in tariff prices and discount structure on iSave v3 and Smart Online Saver v4 |
| EDF Energy | 11.03.2010 | 11.03.2010 | Reduction in gas prices for the tariffs: Standard; Climate Balance; Energy Discount Plan v1 and v2; Online v1, v2, v3, v4, v5 and v6; Online S@ver v2 |
| Sainsbury's Energy | 11.03.2010 | 11.03.2010 | Reduction in gas prices for the tariffs: Standard; Energy Discount Plan v1 and v2; Online Saver v2; |
| npower | 09.03.2010 | 09.03.2010 | Reduction in gas prices on standard tariffs (including Juice and National Trust),SOL4, 5, 6 and 7 tariffs and Go Save tariffs. |
| Southern Electric | 05.03.2010 | 05.03.2010 | Reduction on standard gas prices announced, effective existing customers 29th March 2010. |
| SWALEC | 05.03.2010 | 05.03.2010 | Reduction on standard gas prices announced, effective existing customers 29th March 2010. |
| Scottish Hydro-Electric | 05.03.2010 | 05.03.2010 | Reduction on standard gas prices announced, effective existing customers 29th March 2010. |
| first:utility | 01.03.2010 | 01.03.2010 | Launch of Smart Dual fuel online saver v4 and removal of v3. |
| first:utility | 01.03.2010 | 01.03.2010 | Launch of iSave Dual Fuel v3 and removal of v2 |
| ScottishPower | 25.02.2010 | 25.02.2010 | Launch of Simply Green Energy |
| ScottishPower | 24.02.2010 | 24.02.2010 | Removal of Green Energy H2O tariff |
| EDF Energy | 24.02.2010 | 24.02.2010 | Launch of Fixed Price 2015 |
| EDF Energy | 24.02.2010 | 24.02.2010 | Launch of Online Saver v6 and removal of Online Saver v4 |
| EDF Energy | 22.02.2010 | 22.02.2010 | Launch of Annual Fix Version 2 and removal of Annual Fix Version 1 |
| E.ON | 15.02.2010 | 15.02.2010 | Update of historic Track and Save v1 and v2 tariffs. |
| E.ON | 15.02.2010 | 15.02.2010 | Update of historic Guarantee v4 and v5 tariffs. |
| ScottishPower | 12.02.2010 | 12.02.2010 | Re-instatement of Capped September 2011 tariffs |
| E.ON | 12.02.2010 | 12.02.2010 | Removal of Fix Online v5 and launch of Fix Online v6 |
| ScottishPower | 11.02.2010 | 11.02.2010 | Launch of Fix n Flex April 2011 tariff |
| ScottishPower | 11.02.2010 | 11.02.2010 | Removal of Capped September 2011 from the market |
| ScottishPower | 11.02.2010 | 11.02.2010 | Removal of Discounted Energy December 2010 from the market |
| British Gas | 11.02.2010 | 11.02.2010 | Removal of Price Promise June 2010 from the market |
| ScottishPower | 11.02.2010 | 11.02.2010 | Removal of Fix n flex August 2010 from the market |
| ScottishPower | 11.02.2010 | 11.02.2010 | Launch of Price Tracker April 2011 tariff |
| first:utility | 10.02.2010 | 10.02.2010 | Launch of Standard Dual Fuel Tariff. |
| E.ON | 09.02.2010 | 09.02.2010 | Revision to gas prices of Track and Save v3 |
| ScottishPower | 06.02.2010 | 06.02.2010 | Launch of Online Energy Saver 9 and removal of Online Energy Saver 8 |
| Telecom Plus | 04.02.2010 | 04.02.2010 | Launch of revised pre-payment proces |
| British Gas | 04.02.2010 | 04.02.2010 | Standard Gas tariffs reduced by up to 7% across the UK |
| British Gas | 04.02.2010 | 04.02.2010 | Removal of Track and Save 2011 from the market |
| British Gas | 04.02.2010 | 04.02.2010 | Removal of WebSaver 5 and Launch of Websaver Saver 6. |
| npower | 01.02.2010 | 01.02.2010 | Removal of Go Fix Tariffs for new customers. |
| EDF Energy | 18.01.2010 | 18.01.2010 | Launch of Annual Fix Version 1 and Annual Fix Version 4 removed from the market to new customers. |
| EDF Energy | 18.01.2010 | 18.01.2010 | Launch of Energy Discount Plan Version 2 and Energy Discount Plan removed from the market to new customers. |
| Sainsbury's Energy | 18.01.2010 | 18.01.2010 | Launch of Annual Fix Version 1 and Annual Fix Version 4 removed from the market to new customers. |
| Sainsbury's Energy | 18.01.2010 | 18.01.2010 | aunch of Energy Discount Plan Version 2 and Energy Discount Plan removed from the market to new customers. |
| LoCo2 Energy | 29.10.2010 | 01.01.2010 | All tariff prices updated. |