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Chart

Source: Supplier data.

Information correct as of: February 2019

This chart shows the total number of complaints received quarterly by each energy supplier group per 100,000 customer accounts between Q2 2014 and Q4 2018.

As of February 2019, the chart includes complaints for the following suppliers: six large, seven medium (Co-operative Energy, First Utility, OVO, Utilita, Utility Warehouse, Green Star Energy, Bulb) and eleven small suppliers (Better Energy, Bristol Energy, Ecotricity, Engie, Flow Energy, Good Energy, iSupply, PFP, Robin Hood, Solarplicity, Zog Energy).

The chart includes estimated data for OVO for the period Q4 2015 - Q1 2018. OVO has provided actual information from Q2 2018 onwards.

Several medium and small suppliers have started submitting complaints data to us only from Q3 2018, after the introduction of our mandatory complaints reporting. We expect to start incorporating this additional information from Q3 2019, when a historic trend becomes available for these suppliers.

Policy Areas:

  • Domestic consumers

Data Table

Complaints received by suppliers per 100,000 customer accounts (GB)
Quarter/YearSix LargeMediumSmallAverage
Q2 2014365111439923520
Q3 20143404102211133270
Q4 20143556120515753415
Q1 20153598141610293444
Q2 2015290510016522702
Q3 2015263110376892448
Q4 2015211711648911997
Q1 2016197115338841897
Q2 2016186916156851808
Q3 2016174516186591697
Q4 20161827199310151819
Q1 20171983231012861999
Q2 20171959198911031933
Q3 20172016171910231943
Q4 20171902166111321843
Q1 20181963150111321872
Q2 20182046145212521938
Q3 20182161121614321973
Q4 20182092144613671963
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Chart

Source: Supplier data.

Information correct as of: February 2019

This graph shows the total number of complaints received by the small-sized energy suppliers per 10,000 customer accounts per quarter over the period Q1 2014 to Q4 2018.

Policy Areas:

  • Domestic consumers

Data Table

Complaints received by small-sized suppliers per 10,000 customer accounts (G-Z)
Quarter/YearGood EnergyiSupplyPFPRobin HoodSolarplicityZog Energy
Q1 201420064
Q2 201419834
Q3 201420426
Q4 201422729
Q1 201519940
Q2 201511037
Q3 20151142425
Q4 20151271672623
Q1 2016135188733177
Q2 2016103159533473
Q3 20165713678354214
Q4 201642888139443
Q1 2017818338523820
Q2 2017101683864544
Q3 2017696133833522
Q4 20177260561085027
Q1 201863631391027119
Q2 20185367120973716
Q3 201858502619710311
Q4 2018797639410320323
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Chart

Source: Supplier data.

Information correct as of: February 2019

This graph shows the total number of complaints received by the small-sized energy suppliers per 10,000 customer accounts per quarter over the period Q1 2014 to Q4 2018.

 

 

Policy Areas:

  • Domestic consumers

Data Table

Complaints received by small-sized suppliers per 10,000 customer accounts (A-F)
Quarter/YearBetter EnergyBristol EnergyEcotricityFlow EnergyEngie
Q1 20141921
Q2 20141192513
Q3 20141443719
Q4 2014604228
Q1 2015565434
Q2 2015974731
Q3 2015942934
Q4 2015412743
Q1 201661103138
Q2 201658813068
Q3 201657663746
Q4 201650119304978
Q1 201724138324334
Q2 201710115305852
Q3 2017101103980100
Q4 2017201044911854
Q1 201814134478247
Q2 20186207425357
Q3 2018132103910279
Q4 2018152104720063
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Chart

Source: Suppliers data.

Information correct as of: February 2019

This graph shows the percentage of complaints resolved by small-sized energy suppliers by the end of the next working day from when a complaint was reported over the period Q1 2014 to Q4 2018.

Policy Areas:

  • Domestic consumers

Data Table

Complaints resolved by small-sized suppliers by end of next working day (%) (A-F)
Quarter/YearBetter EnergyBristol EnergyEcotricityFlow EnergyEngie
Q1 20149337
Q2 2014858823
Q3 2014839224
Q4 2014938131
Q1 20151008520
Q2 2015928410
Q3 2015100858
Q4 20151008623
Q1 2016100876821
Q2 201696654724
Q3 2016100464518
Q4 2016966357160
Q1 20177175651524
Q2 201710073723019
Q3 20171008553644
Q4 20179386533031
Q1 2018738958837
Q2 20187590501552
Q3 20186491495356
Q4 20183693594570
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Chart

Source: Suppliers data.

Information correct as of: February 2019

This graph shows the percentage of complaints resolved by small-sized energy suppliers within eight weeks from when a complaint was reported over the period Q3 2015 to Q4 2018.

Policy Areas:

  • Domestic consumers

Data Table

Complaints resolved by small-sized suppliers within eight weeks (%) (G-Z)
Quarter/YearGood EnergyiSupplyPFPRobin HoodSolarplicityZog Energy
Q3 20159188
Q4 20159389100
Q1 2016918510093100
Q2 201687869895100
Q3 201681827191100
Q4 201686799989100
Q1 201797799695100
Q2 20179478999599100
Q3 20178472978999100
Q4 201793739779100100
Q1 20188587998492100
Q2 20189789987888100
Q3 201898591008092100
Q4 201898721009798100
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Chart

Source: Suppliers data.

Information correct as of: February 2019

This graph shows the percentage of complaints resolved by small-sized energy suppliers within eight weeks from when a complaint was reported over the period Q1 2014 to Q4 2018.

 

Policy Areas:

  • Domestic consumers

Data Table

Complaints resolved by small-sized suppliers within eight weeks (%) (A-F)
Quarter/YearBetter EnergyBristol EnergyEcotricityFlow EnergyEngie
Q1 201410093
Q2 201410010095
Q3 201410010093
Q4 2014100100100
Q1 201510010086
Q2 2015100100100
Q3 201510010077
Q4 201510010085
Q1 2016100100100100
Q2 20161001009596
Q3 2016100999495
Q4 2016100989695
Q1 2017100978480
Q2 2017100989599
Q3 2017100988793
Q4 2017100989999
Q1 2018100999774
Q2 2018100999293
Q3 201810099929798
Q4 2018100999910098
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Chart

Source: Suppliers data.

Information correct as of: February 2019

This graph shows the percentage of complaints resolved by small-sized energy suppliers by the end of the next working day from when a complaint was reported over the period Q1 2014 to Q4 2018.

Policy Areas:

  • Domestic consumers

Data Table

Complaints resolved by small-sized suppliers by end of next working day (%) (G-Z)
Quarter/YearGood EnergyiSupplyPFPRobin HoodSolarplicityZog Energy
Q1 20146453
Q2 20146425
Q3 20145926
Q4 20146319
Q1 20155935
Q2 20156336
Q3 2015607519
Q4 20155318365
Q1 201651217321160
Q2 20164216821850
Q3 2016291182145922
Q4 2016475817760
Q1 20175936338033
Q2 20174337039333
Q3 201734468155233
Q4 2017421370221665
Q1 201843198624769
Q2 2018412484265073
Q3 2018552195323930
Q4 2018574095522467
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Chart

Source: Ofgem analysis of data from electricity distribution network operators (DNOs) and Xoserve.

Information correct as of: April 2019

This chart shows the total number of domestic customers switching gas and electricity supplier each month. It also shows, in dotted lines, the number of switches going to medium/small suppliers, as well as the net gains made by these suppliers (from November 2016).

Policy Areas:

  • Electricity - retail markets
  • Gas - retail markets

Data Table

Number of domestic customers switching supplier by fuel type (GB)
MonthTotal electricity switchesTotal gas switchesSwitches to electricity other suppliersSwitches to gas other suppliersNet gains for electricity other suppliersNet gains for gas other suppliers
01/01/2003326,000266,000
01/02/2003337,000167,000
01/03/2003368,000239,000
01/04/2003351,000216,000
01/05/200332,7000245,000
01/06/2003344,000252,000
01/07/2003365,000260,000
01/08/2003318,000253,000
01/09/2003382,000296,000
01/10/2003370,000290,000
01/11/2003344,000280,000
01/12/2003371,000294,000
01/01/2004273,000303,000
01/02/2004341,000256,000
01/03/2004412,000334,000
01/04/2004341,000283,000
01/05/2004310,000266,000
01/06/2004356,000297,000
01/07/2004323,000275,000
01/08/2004331,000261,000
01/09/2004367,000276,000
01/10/2004406,000338,000
01/11/2004398,000370,000
01/12/2004340,000330,000
01/01/2005243,000281,000
01/02/2005359,000181,000
01/03/2005390,000302,000
01/04/2005384,000341,000
01/05/2005369,000304,000
01/06/2005365,000317,000
01/07/2005330,000271,000
01/08/2005375,000286,000
01/09/2005348,000298,000
01/10/2005416,000301,000
01/11/2005465,000329,000
01/12/2005361,000300,000
01/01/2006284,000290,000
01/02/2006347,000208,000
01/03/2006539,000366,000
01/04/2006418,000345,000
01/05/2006396,000372,000
01/06/2006364,000350,000
01/07/2006360,000295,000
01/08/2006428,000315,000
01/09/2006402,000358,000
01/10/2006429,000356,000
01/11/2006482,000374,000
01/12/2006392,000288,000
01/01/2007352,000346,000
01/02/2007390,000265,000
01/03/2007441,000333,000
01/04/2007392,000301,000
01/05/2007452,000334,000
01/06/2007426,000378,000
01/07/2007441,000352,000
01/08/2007501,000336,000
01/09/2007397,000289,000
01/10/2007477,000383,000
01/11/2007477,000343,000
01/12/2007411,000322,000
01/01/2008335,000344,000
01/02/2008441,000278,000
01/03/2008476,000313,000
01/04/2008438,000388,000
01/05/2008440,000335,000
01/06/2008459,000347,000
01/07/2008474,000361,000
01/08/2008553,000348,000
01/09/2008466,000427,000
01/10/2008478,000347,000
01/11/2008428,000336,000
01/12/2008439,000332,000
01/01/2009290,000331,000
01/02/2009364,000255,000
01/03/2009475,000311,000
01/04/2009423,000298,000
01/05/2009397,000324,000
01/06/2009434,000332,000
01/07/2009442,000327,000
01/08/2009388,000304,000
01/09/2009480,000343,000
01/10/2009455,000336,000
01/11/2009441,000330,000
01/12/2009438,000332,000
01/01/2010259,000307,0006,622
01/02/2010353,000217,0008,884
01/03/2010460,000316,0007,735
01/04/2010379,000307,0009,193
01/05/2010352,000271,0007,564
01/06/2010413,000289,0002,986
01/07/2010398,000292,0003,007
01/08/2010419,000296,0003,928
01/09/2010426,000305,0006,836
01/10/2010409,000305,0004,253
01/11/2010456,000322,00010,827
01/12/2010425,000328,00011,251
01/01/2011270,000279,0003,280
01/02/2011324,000211,0006,340
01/03/2011400,000307,0006,597
01/04/2011360,000246,0004,273
01/05/2011356,000308,0007,479
01/06/2011393,000259,0008,895
01/07/2011397,000301,0008,868
01/08/2011449,000343,00016,021
01/09/2011343,000309,00013,281
01/10/2011326,000247,00019,478
01/11/2011329,000240,00019,854
01/12/2011259,000219,00012,620
01/01/2012210,000194,00022,337
01/02/2012257,000149,00029,128
01/03/2012279,000190,00020,817
01/04/2012232,000176,00012,872
01/05/2012286,000202,00019,167
01/06/2012272,000192,00041,228
01/07/2012257,000190,00018,762
01/08/2012265,000187,00013,366
01/09/2012312,000195,00022,561
01/10/2012366,000273,00072,968
01/11/2012338,000174,00066,652
01/12/2012266,000159,00050,393
01/01/2013228,000157,92943,231
01/02/2013247,000117,96449,082
01/03/2013247,000144,21329,156
01/04/2013251,000186,69029,311
01/05/2013234,000155,03124,985
01/06/2013218,000148,45335,281
01/07/2013232,000160,79331,292
01/08/2013210,000140,74932,638
01/09/2013254,000145,41427,969
01/10/2013381,186213,58971,447
01/11/2013606,061358,799138,394
01/12/2013309,978260,32593,626
01/01/2014214,944188,87093,57973,618
01/02/2014253,295169,946106,70877,109
01/03/2014269,497195,773134,80292,080
01/04/2014252,047201,512133,319104,617
01/05/2014228,628179,604124,802100,417
01/06/2014201,381163,56898,58687,363
01/07/2014219,026145,714104,62573,414
01/08/2014223,581150,623113,96076,153
01/09/2014283,877180,965138,186102,117
01/10/2014309,890232,178118,527108,942
01/11/2014270,603216,783108,79388,088
01/12/2014311,298250,638103,86781,917
01/01/2015190,554155,78973,97758,597
01/02/2015291,341230,518102,44590,566
01/03/2015382,809304,679135,965103,196
01/04/2015272,996214,556108,97679,892
01/05/2015239,574197,166108,49988,984
01/06/2015229,825174,688105,81483,896
01/07/2015239,343192,299108,28786,631
01/08/2015253,099195,183116,63393,783
01/09/2015279,411223,703128,043100,534
01/10/2015349,278274,581161,602121,335
01/11/2015343,870274,206161,034131,736
01/12/2015310,293242,630148,668117,677
01/01/2016245,922189,143139,539109,708
01/02/2016390,645305,057176,036143,238
01/03/2016453,964361,399244,232196,273
01/04/2016386,456273,751204,748151,645
01/05/2016345,146261,324169,711127,352
01/06/2016335,879252,712143,231104,67464,39143,204
01/07/2016303,404221,175140,898103,66270,82950,962
01/08/2016310,132209,178149,026108,99774,44557,084
01/09/2016349,203271,374154,142116,03268,91647,780
01/10/2016486,878384,023150,747118,32820,32816,409
01/11/2016386,585297,468147,607116,24536,64423,680
01/12/2016423,068317,740230,753176,05191,05368,890
01/01/2017319,503239,759203630158,23097,49678,267
01/02/2017398,150296,055220,784173,226107,16787,624
01/03/2017512,855388,103280,224223,528142,15511,3040
01/04/2017449,463327,288274,019212,426143,76711,4270
01/05/2017414,285304,615251,465193,355124,32799,986
01/06/2017379345315,542198,431166,62787,24076,388
01/07/2017350,660306,437177,209158,63972,36067,784
01/08/2017414,308348,605221,136191,41997,84796,690
01/09/2017520,678454,861276,304242,592155,301140,919
01/10/2017534,746460,559310,969273,286180,672165,424
01/11/2017440,757375,183222,992191,178108,57397,449
01/12/2017385,060325,882298,250196,213111,63099,215
01/01/2018321,560253,513192,655163,57289,56575,444
01/02/2018425,147347,711277,930227,017123,955102,203
01/03/2018443,326374,228221,536213,96298,95985,549
01/04/2018446,530371,819266,409216,622107,63982,419
01/05/2018464,753399,163320,163272,863164,128142,678
01/06/2018455,194388,672348,591298,865218,509188,196
01/07/2018442,406364,991299,457248,923177,140150,162
01/08/2018466,898394,160279,178205,354148,566128,367
01/09/2018525,216433,386329,664266,263163,805140,687
01/10/2018558,583469,695345,347286,553143,789121,562
01/11/2018462,137381,638242,454194,51477,58463,699
01/12/2018390,540338,140254,810206,693107,87577,370
01/01/2019360,286291,442241,517194,79699,07384,169
01/02/2019436,164350,030289,566227,009115,31592,266

More information

At-a-glance summary

The number of domestic gas and electricity switches generally follows a seasonal pattern (with peaks around March and November then dipping in January and the summer months). Switching has been on the rise since 2014. The number of domestic switches in the 12 months up to February 2019 was 6% higher than in the 12 months up to February 2018 for electricity and 8% higher for gas.  

There has been a break in the usual seasonal switching pattern with the number of switches staying at a relatively constant level for each month since February 2018 instead of falling in the summer months, as we have historically seen.

In February 2019 the proportion of net gains in switching away from the six large suppliers made up 27% of total switches for gas and electricity combined, down from 29% in February 2018.

Relevance and further information

External switching, from one supplier to another, is one measure of consumer engagement with the market. The number of switches to small and medium sized suppliers show how these suppliers are attracting customers over time. For summary information on the switching figures for the year please see also the facts and figures.

Methodology

The number of customers switching supplier shown in the graph is based on the number of meter points a supplier gains from another following a customer choice to change their supplier.

The net gains for small and medium suppliers is calculated by subtracting from the gross meter point gains these suppliers achieve over the month the gross number of meter points these suppliers lose over the same period.

As of July 2017, supply points connected to independent gas transporters are included in the gas data provided by Xoserve.

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Chart

Javascript is required to render chart Prepayment price cap and prices since January 2016 (GB).

Source: Energylinx (Until May 2017) & Energyhelpline (June 2017 onwards).

Information correct as of: April 2019

This chart compares trends in prices since 2016 for a dual fuel customer paying prepayment. It shows both the market cheapest tariffs and average standard variable tariffs (SVT) for this payment method. The values are calculated for a customer with typical energy use.

From February 2017 the prices shown in the chart, including the level of the prepayment price cap, are calculated using the new TDCV values that entered into effect from 1st of October 2017 (see the methodology section for more details).

In practical terms, this means that the tariffs offered after February 2017 are likely to appear slightly lower than those before February 2017.  

Policy Areas:

  • Electricity - retail markets
  • Electricity - wholesale markets
  • Gas - retail markets
  • Gas - wholesale markets

Data Table

Prepayment price cap and prices since January 2016 (GB)
DateSVT - prepayment (market average)Cheapest tariff - prepayment (all suppliers)Prepayment price cap
28/12/20151163.441055.61
28/01/20161163.181055.61
28/02/20161158.611054.20
28/03/20161138.391051.22
28/04/20161131.321030.27
28/05/20161131.321017.61
28/06/20161131.32985.97
28/07/20161130.22985.97
28/08/20161130.22985.97
28/09/20161130.22985.97
28/10/20161130.22985.97
28/11/20161122.72985.97
28/12/20161122.72985.97
28/01/20171115.77985.97
28/02/20171061.14970.67
28/03/20171059.99970.67
28/04/20171032.30970.671050.35
28/05/20171032.30979.271050.35
28/06/20171032.30979.271050.35
28/07/20171032.69979.271050.35
28/08/20171031.31979.271050.35
28/09/20171034.46979.271050.35
28/10/20171030.60978.041031.27
28/11/20171030.60978.041031.27
28/12/20171030.60957.121031.27
28/01/20181030.72960.061031.27
28/02/20181030.72945.761031.27
28/03/20181030.85945.761031.27
28/04/20181079.09946.631088.55
28/05/20181086.20946.631088.55
28/06/20181086.19946.631088.55
28/07/20181086.08946.631088.55
28/08/20181086.06946.541088.55
28/09/20181086.06983.861088.55
28/10/20181135.42983.861135.99
28/11/20181135.42983.861135.99
28/12/20181135.42983.861135.99
28/01/20191135.231016.481135.99
28/02/20191135.231023.391135.99
28/03/20191135.231023.391135.99
28/04/20191242.07

More information

At-a-glance summary

In April 2017, the prepayment price cap came into force, limiting the amount that suppliers can charge their prepayment customers. These customers tend to be unable to access the cheapest deals and are also more likely to be in vulnerable circumstances.

The cheapest prepayment tariffs available in the market have remained below the average SVT for a prepayment customer following the introduction of the prepayment price cap. This differential between the average SVT and the cheapest prepayment tariff has remained over £100 since April 2018. At the end of February 2019, the differential was around £112.

On 1 April 2019, the level of the prepayment price cap rose from £1,136 to £1,242 for a dual fuel customer who uses a typical amount of energy. This increase was mainly due to higher wholesale energy costs and network costs. The next update will reflect any changes suppliers make in response to the new cap level. For more information on the latest updates, see our chart Breakdown of the prepayment price cap.

Relevance and further information

This chart helps us track the differential between the average prepayment SVT and the market cheapest PPM tariff price a customer will pay if they use prepayment to pay their energy bills. Both prices are compared with the prepayment price cap that currently apply to all prepayment customers, excluding those on ‘interoperable’ smart meters.

Customers who get the Government’s Warm Home Discount (WHD) and are on a standard variable or default tariff were protected by a ‘safeguard tariff’ set at the level of the prepayment price cap until the end of 2018, after which they were transferred to the default tariff price cap. The default tariff price cap came into effect on 1 January 2019, limiting the amount that suppliers can charge customers on default tariffs.

The default tariff cap has different levels set to reflect how customers pay, where they live and the type of energy meter they have. When transferred, WHD customers will be placed on the cheaper default cap level set for direct debit payment methods – it won’t matter how they pay.

You can find further information on energy price caps here.

Methodology

  • We calculate the bill values associated with the different tariff types using a ‘typical medium domestic consumer’. As of October 2017, typical consumption values for a medium consumer are 12,000kWh/year for gas and 3,100kWh/year for electricity (profile class 1).  
  • All prices shown are for a dual fuel customer (i.e. where a customer takes gas and electricity from the same supplier).  
  • The market average SVTs are based on the prices of the 12 largest suppliers in the prepayment segment. We have weighted the SVT of each supplier using an estimate of their total share of all prepayment accounts (for prepayment). We update the weightings every six months in January and July to reflect customer numbers four months prior to publication. The time lag is due to data availability. For example, the average given for 28 January 2017 uses weights based on customer numbers at 31 October 2016, while the average for 28 December 2016 uses weights at 31 March 2016.  
  • An SVT refers to a supply contract which is for a period of an indefinite length, and which does not have a fixed-term period applying to any of the terms and conditions. It’s an energy supplier’s basic offer. If a customer does not choose a specific energy plan, for example after their fixed tariff ends, they will be moved onto an SVT until they have chosen a new one. A customer can also make an active choice to select an SVT. 
  • We exclude tariffs with limited availability – such as tariffs only available to new customers (also known as ‘acquisition’ tariffs) or tariffs restricted to certain regions - when calculating the market cheapest tariff. This is so we give a representative picture of tariffs generally available to all customers across GB. 
  • We include tariffs available with ‘white label’ suppliers in our calculation of the cheapest tariffs. White label suppliers are organisations without supply licences that partner with an active licensed supplier to offer gas and electricity using their own brand. 
  • The cheapest tariff shown on the chart includes any collective switching tariffs after the first quarter of 2016. 
  • In all cases, the prices shown are based on suppliers’ tariffs averaged across GB regions. The level of the prepayment price cap is based on the values published on our website, adjusted to reflect current typical domestic consumption values, and to include VAT.

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Chart

Source: Energylinx (Until May 2017) & Energyhelpline (June 2017 onwards).

Information correct as of: April 2019

This chart shows trends in domestic energy bills by tariff offered by the six large suppliers and other suppliers. It compares their average standard variable tariffs with the cheapest tariffs available in the market (including white label tariffs). Figures are based on a typical domestic dual fuel customer paying by direct debit. 

From February 2017 the prices shown in the chart are calculated using the latest Typical Domestic Consumption Values (TDCV) that entered into effect from 1st of October 2017 (see the methodology section for more details).

In practical terms, this means that the tariffs offered after February 2017 are likely to appear slightly lower than those before February 2017.  

This information should not be used as a price comparison tool. To find out about accredited price comparison sites, see Compare gas and electricity tariffs.

Policy Areas:

  • Electricity - retail markets
  • Gas - retail markets

Data Table

Retail price comparison by company and tariff type: Domestic (GB)
DateAverage standard variable tariff (Six large suppliers)Average standard variable tariff (Other suppliers)Cheapest tariff (Six large suppliers)Cheapest tariff (All suppliers)Cheapest tariff (Basket)
28/01/20121020.161024.33915.27906.56947.56
28/02/20121000.761017.41886.18878.10930.29
28/03/2012997.251017.41886.18878.10936.54
28/04/2012997.251017.35895.69878.10937.68
28/05/2012997.251017.35895.69878.10929.78
28/06/2012997.251032.16895.69895.69945.53
28/07/2012997.251032.16895.69875.93928.99
28/08/2012997.251030.02899.10875.93924.85
28/09/2012997.251017.84901.47875.93931.04
28/10/20121009.001020.51906.17893.85956.00
28/11/20121030.781075.12958.21909.59997.71
28/12/20121061.801087.65990.70909.59994.59
28/01/20131074.421087.65957.18909.59990.81
28/02/20131074.421119.05957.18909.59994.56
28/03/20131074.421119.05966.54909.59995.50
28/04/20131074.421119.05966.54909.59988.37
28/05/20131074.431119.05966.54962.43997.77
28/06/20131074.431119.05966.54769.95967.26
28/07/20131074.451119.05984.68769.95974.82
28/08/20131074.451119.05971.77769.95988.47
28/09/20131074.451119.05971.77769.95979.55
28/10/20131074.451127.021011.80769.95995.67
28/11/20131105.941123.75993.40769.95992.26
28/12/20131138.951123.751033.47769.95997.00
28/01/20141145.841125.141033.47975.211013.73
28/02/20141134.091128.761033.97966.341014.19
28/03/20141128.101126.611024.79964.311016.25
28/04/20141128.101129.621000.38946.42995.26
28/05/20141128.101129.621000.38944.55995.13
28/06/20141128.101129.621000.38944.55992.88
28/07/20141128.101134.191000.38944.95976.39
28/08/20141128.101127.791000.38943.43978.98
28/09/20141128.101158.39960.90942.27972.34
28/10/20141128.101131.80953.40931.02960.15
28/11/20141128.101131.80921.88914.51947.94
28/12/20141128.101130.51916.21906.14929.69
28/01/20151124.331130.51875.40871.26895.39
28/02/20151106.651110.84839.28839.28881.39
28/03/20151106.651088.31836.99836.99892.38
28/04/20151106.651075.32834.57834.57878.56
28/05/20151102.281073.26835.19830.56877.12
28/06/20151102.281073.26835.71830.56871.21
28/07/20151102.281066.77863.85830.56867.88
28/08/20151098.031066.77876.03830.56868.79
28/09/20151098.031054.98876.03830.56858.62
28/10/20151098.031050.12803.00793.93823.00
28/11/20151098.031040.70805.40787.05810.84
28/12/20151098.031039.03850.52787.05803.86
28/01/20161098.031035.48769.69765.00785.04
28/02/20161092.691020.06738.38738.38755.65
28/03/20161071.441013.00727.70727.70756.05
28/04/20161065.97978.55723.91723.91751.58
28/05/20161065.97976.04723.23723.23742.71
28/06/20161065.97984.02723.23723.23751.36
28/07/20161065.97988.70779.39758.31779.72
28/08/20161065.97983.86801.37769.65789.25
28/09/20161065.97983.89754.64744.30777.00
28/10/20161065.97994.93803.54741.92786.41
28/11/20161065.971012.84897.18790.02859.23
28/12/20161065.971019.72951.51790.02872.16
28/01/20171061.061020.10951.51833.71881.11
28/02/20171081.271027.06928.48829.10869.79
28/03/20171109.481035.47922.23829.10873.38
28/04/20171122.281041.56923.55863.31874.62
28/05/20171122.281039.22923.57826.52861.76
28/06/20171122.281026.98923.57835.76852.58
28/07/20171122.281030.63922.82829.91844.94
28/08/20171122.281030.76910.05810.11839.30
28/09/20171134.951026.42904.48826.73837.66
28/10/20171134.951031.41897.98826.73854.69
28/11/20171134.951044.84928.59826.73846.77
28/12/20171134.951040.86973.04798.72841.48
28/01/20181134.951036.14907.89809.32840.81
28/02/20181134.951039.85900.98810.06840.58
28/03/20181134.951044.29900.98810.11842.91
28/04/20181138.281061.811000.42788.16820.46
28/05/20181138.281060.56962.53788.16832.69
28/06/20181172.201066.39953.16796.99845.91
28/07/20181184.791075.35965.27826.73861.22
28/08/20181194.001091.02951.33842.49897.02
28/09/20181205.621104.911043.21920.60982.09
28/10/20181220.651124.271051.27920.60989.84
28/11/20181220.651140.971030.12946.13993.80
28/12/20181220.651142.961034.69902.66983.19
28/01/20191136.671099.491035.63941.26992.85
28/02/20191136.671097.671008.69929.66974.58
28/03/20191136.671094.871011.22891.94945.99

More information

At-a-glance summary

As of March 2019, the average price of SVTs for the six large suppliers for a typical dual fuel customer paying with direct debit was £1,137, unchanged from the previous two months. This is level with the default tariff price cap in this period. On 1 April 2019, the level of the cap increased to £1,254. This will be shown in the next update.

The cheapest tariff in the market in March 2019 was £891. This was £38 cheaper than the cheapest tariff in the previous month and the first time the cheapest tariff has been below £900 since August 2018. However, it is £82 more expensive than the cheapest tariff in March 2018.

The differential between the average price of SVTs for the six large suppliers and the market cheapest tariff increased from £207 to £245 between February and March 2019.

For details on prices of fixed default tariffs, please see the chart showing Average tariff prices per supplier.

Relevance and further information

Tariff differentials reflect pricing in different market segments, as well as how much other suppliers are able to compete on price with the six large suppliers.

Methodology

We calculate the bill values associated with the different tariff types using a ‘typical medium domestic consumer’. As of October 2017, typical domestic consumption values (TDCV) for a medium consumer are 12,000kWh/year for gas and 3,100kWh/year for electricity (profile class 1). The chart includes collective switching tariffs from Q1 2016. All tariffs shown in the chart are for a dual fuel, direct debit customer. Dual fuel refers to a situation where a customer takes gas and electricity from the same supplier.

A standard variable tariff refers to a supply contract which is for a period of an indefinite length and which does not contain a fixed term period that applies to any of the terms and conditions. It’s an energy supplier’s basic offer. If a customer does not choose a specific energy plan, for example after their fixed tariff ends, they will be moved on a standard variable tariff until they have chosen a new one. A customer can also make an active choice to select a standard variable tariff.

Tariffs with limited availability depending on customer features (for example, tariffs which are only available to new customers, also known as ‘acquisition’ tariffs, or tariffs restricted to certain regions) are excluded from the calculation to make sure that all tariffs considered are generally available to all customers across GB.

Tariffs available with white label suppliers are included in the calculation of the cheapest tariffs. White label suppliers are organisations without supply licences that partner with an active licensed supplier to offer gas and electricity using their own brand.

To calculate the average of the cheapest tariffs from the 10 cheapest suppliers we took the cheapest tariff offered by each supplier in the market (i.e. one tariff per supplier) and then ranked the tariffs in order of price. We then took the simple average of the 10 cheapest tariffs in this list. This method is to ensure a cross section of suppliers is included in the calculation.

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Chart

Source: Energylinx (Until May 2017) & Energyhelpline (June 2017 onwards).

Information correct as of: April 2019

This chart compares the cheapest available tariffs offered by the six large suppliers with the cheapest tariff available in the market by payment method (direct debit, standard credit and prepayment). Figures are based on a typical domestic dual fuel customer.

From February 2017 the prices shown in the chart are calculated using the latest Typical Domestic Consumption Values (TDCV) that entered into effect from 1st of October 2017 (see the methodology section for more details).

In practical terms, this means that the tariffs offered after February 2017 are likely to appear slightly lower than those before February 2017.  

Policy Areas:

  • Electricity - retail markets
  • Gas - retail markets

Data Table

Cheapest tariffs by payment method: Typical domestic dual fuel customer (GB)
DateLarge six suppliers (direct debit)Large six suppliers (standard credit)Large six suppliers (prepayment)Market (direct debit)Market (standard credit)Market (prepayment)
28/01/2012915.27976.701021.54906.56971.04969.61
28/02/2012886.18976.701021.54878.10971.04969.61
28/03/2012886.18976.701021.54878.10971.04969.61
28/04/2012895.69953.401021.54878.10953.40969.24
28/05/2012895.69953.401021.54878.10890.12969.24
28/06/2012895.69953.401021.54895.69953.401017.42
28/07/2012895.69953.401021.54875.93953.401017.42
28/08/2012899.10957.031021.54875.93957.031017.42
28/09/2012901.471020.711021.54875.93988.141017.42
28/10/2012906.171020.711069.39893.85988.141019.30
28/11/2012958.211020.711069.39909.59979.351045.64
28/12/2012990.701071.381133.19909.59979.351045.64
28/01/2013957.181037.201133.19909.59979.351045.64
28/02/2013957.181037.201133.19909.591037.201045.64
28/03/2013966.541046.571133.19909.591046.571045.64
28/04/2013966.541046.571133.19909.591046.571045.64
28/05/2013966.541046.571133.19962.43996.901045.64
28/06/2013966.541046.571133.19769.95996.901045.64
28/07/2013984.681075.511133.19769.95996.901045.64
28/08/2013971.771051.791133.19769.951051.791045.64
28/09/2013971.771051.791133.19769.951051.791045.64
28/10/20131011.801079.911133.19769.951070.991093.35
28/11/2013993.401058.151150.97769.951058.151093.35
28/12/20131033.471101.651178.61769.951101.651093.35
28/01/20141033.471101.651178.61975.211101.651172.77
28/02/20141033.971108.101178.61966.341108.101172.77
28/03/20141024.791117.271178.61964.311117.271171.39
28/04/20141000.381069.951178.61946.421069.951171.39
28/05/20141000.381069.951178.61944.551069.951171.39
28/06/20141000.381069.951170.86944.551069.951162.40
28/07/20141000.381069.951170.86944.951029.051162.40
28/08/20141000.381069.951170.86943.431038.881154.43
28/09/2014960.901030.951170.86942.271030.951154.43
28/10/2014953.401046.451170.86931.021024.451154.43
28/11/2014921.881003.791170.86914.511003.791154.43
28/12/2014916.211003.791170.86906.141003.791151.22
28/01/2015875.40945.461148.99871.26945.461148.99
28/02/2015839.28955.071148.90839.28950.351148.90
28/03/2015836.99907.241148.99836.99907.241116.99
28/04/2015834.57977.561141.64834.57950.631116.99
28/05/2015835.19905.441141.64830.56905.441116.99
28/06/2015835.71981.781122.97830.56940.901116.99
28/07/2015863.85981.781122.97830.56939.851116.99
28/08/2015876.03977.321128.54830.56940.271116.99
28/09/2015876.03963.771128.54830.56907.261100.94
28/10/2015803.00873.251128.54793.93844.041100.94
28/11/2015805.40950.751128.54787.05844.041055.61
28/12/2015850.52950.751102.20787.05844.041055.61
28/01/2016769.69839.941102.20765.00839.941055.61
28/02/2016738.38808.631092.26738.38808.631054.20
28/03/2016727.70797.761070.37727.70797.761051.22
28/04/2016723.91793.481070.37723.91793.481030.27
28/05/2016723.23877.121037.31723.23877.121017.61
28/06/2016723.23847.451037.31723.23847.45985.97
28/07/2016779.39904.971037.31758.31871.54985.97
28/08/2016801.37941.421043.54769.65871.54985.97
28/09/2016754.64839.151043.54744.30839.15985.97
28/10/2016803.54967.131043.54741.92829.42985.97
28/11/2016897.181002.631035.64790.02907.75985.97
28/12/2016951.511031.571035.64790.02923.48985.97
28/01/2017951.511031.571035.64833.71951.58985.97
28/02/2017928.481033.401015.43829.10935.19970.67
28/03/2017922.231016.741019.21829.10949.48970.67
28/04/2017923.551018.06994.53863.31946.43970.67
28/05/2017923.571018.08994.53826.52923.47979.27
28/06/2017923.571018.08994.53835.76923.23979.27
28/07/2017922.821017.33994.53829.91923.23979.27
28/08/2017910.051004.56988.90810.11923.47979.27
28/09/2017904.481051.43988.90826.73923.47979.27
28/10/2017897.981012.47988.90826.73943.35978.04
28/11/2017928.591100.89988.90826.73958.08978.04
28/12/2017973.041051.43988.90798.72958.08957.12
28/01/2018907.891051.43988.90809.32958.08960.06
28/02/2018900.981050.871028.21810.06958.08945.76
28/03/2018900.981074.651028.21810.11958.08945.76
28/04/20181000.421143.141030.55788.16958.08946.63
28/05/2018962.531057.041030.93788.16958.08946.63
28/06/2018953.161033.191070.34796.99958.08946.63
28/07/2018965.271045.291070.34826.73990.66946.63
28/08/2018951.331198.371070.50842.49990.68946.54
28/09/20181043.211138.841070.50920.601067.64983.86
28/10/20181051.271164.581070.50920.601107.76983.86
28/11/20181030.121055.761115.66946.131055.76983.86
28/12/20181034.691134.341115.66902.661109.27983.86
28/01/20191035.631125.841115.66941.26941.261016.48
28/02/20191008.691040.001115.66929.661040.001023.39
28/03/20191011.221040.001115.66891.941040.001023.39

More information

At-a-glance summary

Direct debit customers have traditionally been offered the cheapest tariffs, followed by standard credit customers and those using prepayment meters.  

After the introduction of the prepayment safeguard tariff in April 2017, the overall cheapest tariffs have continued to be those for direct debit customers. However, the ranking between standard credit and prepayment cheapest tariffs has fluctuated over time. Looking at the whole market, since February 2018 the cheapest prepayment tariff has been less expensive than the cheapest standard credit tariff. Among the six large suppliers, the cheapest prepayment tariff has been consistently less expensive than the cheapest standard credit tariff since April 2017, with the exception of June, July and November 2018 when the cheapest prepayment tariff was more expensive.

At the end of March 2019, the cheapest direct debit tariff in the market was £148 less expensive than the cheapest standard credit tariff and £131 less than the cheapest prepayment tariff. The cheapest direct debit tariff has historically been at least £100 less expensive than the cheapest standard credit tariff.

A prepayment price cap was introduced on 1 April 2017, limiting the amount that suppliers can charge their prepayment customers. The default tariff price cap came into effect on 1 January 2019, limiting the amount that suppliers can charge customers on default tariffs.

Relevance and further information

This indicator helps us understand pricing by payment methods, as well as how much other suppliers are able to compete with the six large suppliers for each method.

Methodology

We calculate the bill values associated with the different tariff types using a ‘typical medium domestic consumer’. As of October 2017, typical domestic consumption values (TDCV) for a medium consumer are 12,000kWh/year for gas and 3,100kWh/year for electricity (profile class 1). The chart includes collective switching tariffs from Q1 2016.

All tariffs shown in the chart are for a dual fuel customer. Dual fuel refers to a situation where a customer takes gas and electricity from the same supplier.

Tariffs with limited availability depending on customer features (for example, tariffs which are only available to new customers, also known as ‘acquisition’ tariffs, or tariffs restricted to certain regions) are excluded from the calculation to make sure that all tariffs considered are generally available to all customers across GB.

Tariffs available with white label suppliers are included in the calculation of the cheapest tariff. White label suppliers are organisations without supply licences that partner with an active licensed supplier to offer gas and electricity using their own brand.

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Chart

Source: Suppliers data.

Information correct as of: February 2019

This graph shows the percentage of complaints resolved by medium-sized energy suppliers within eight weeks from when a complaint was reported over the period Q1 2014 to Q4 2018.

The chart includes estimated data for OVO for the period Q4 2015 - Q1 2018. OVO has provided actual information from Q2 2018 onwards.

Policy Areas:

  • Domestic consumers

Data Table

Complaints resolved by medium-sized suppliers within eight weeks (%)
Quarter/YearCo-OperativeFirst UtilityOvoUtilitaUtility WarehouseGreen Star EnergyBulb
Q1 2014989199999996
Q2 20149981999999100
Q3 20149874999999100
Q4 20149978959910099
Q1 20159881969910084
Q2 20159385999910086
Q3 20159084991009774
Q4 201593801001009889
Q1 2016918099999982
Q2 20169484100999783
Q3 201681881001009882
Q4 20168789100999770100
Q1 20179189100989887100
Q2 20179688100989982100
Q3 201794901001009790100
Q4 201795851001009575100
Q1 20189587100989590100
Q2 2018959099959786100
Q3 201893919999988599
Q4 201895929997988497
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