ChartJavascript is required to render chart Complaints resolved by large suppliers by end of next working day (%).Source: Suppliers data.Information correct as of: November 2020 This graph shows the percentage of complaints resolved by large energy suppliers by the end of the next day from when a complaint was reported over the period Q1 2013 to Q3 2020. The category ‘large’ refers to those suppliers whose market share exceeds 5% in at least one fuel. In Q3 2020 Bulb and Octopus Energy, previously considered medium-sized suppliers, have moved to the large supplier category. In January 2020, OVO completed the acquisition of SSE’s domestic business and kept SSE as a separate white label brand. SSE’s complaints are reported under its parent OVO as of Q1 2020. Policy Areas:Domestic consumers Data Table Complaints resolved by large suppliers by end of next working day (%) Quarter/YearBritish GasEDF energyEonnPowerScottish PowerSSE - End Q4 2019OVO - Start Q1 2020Bulb - Start Q3 2020Octopus Energy - Start Q3 2020 Q1 2013799193876375 Q2 2013728993876565 Q3 2013728389896272 Q4 2013768281905073 Q1 2014808482865082 Q2 2014788480815185 Q3 2014778481855186 Q4 2014758782894985 Q1 2015758481884887 Q2 2015707678744788 Q3 2015687875695288 Q4 2015577970635584 Q1 2016577768394977 Q2 2016528063485477 Q3 2016547959585975 Q4 2016517364505874 Q1 2017507467495876 Q2 2017507168465776 Q3 2017516971455976 Q4 2017486269405774 Q1 2018515969406274 Q2 2018535869425976 Q3 2018605878495477 Q4 2018585276494478 Q1 2019555276513981 Q2 2019495172524180 Q3 2019425269553981 Q4 2019385559554178 Q1 2020445257574479 Q2 2020536251573579 Q3 20205660585852814564 Date correct November 2020 Policy area Domestic consumers