Consumer Information » Energy Supplier Performance
Historical Supplier Performance
This graph & table show historical supplier performance on a three month rolling average since April 2010.
| Month | British Gas4 | E.ON | EDF Energy | npower | Scottish and Southern Energy5 | ScottishPower | Industry Average (Big 6) |
|---|---|---|---|---|---|---|---|
| Apr 2010 | 117.50 (2 star) |
99.40 (3 star) |
108.60 (2 star) |
136.20 (1 star) |
62.50 (4 star) |
151.60 (0 star) |
109.40 (2 star) |
| May 2010 | 102.50 (2 star) |
93.80 (3 star) |
97.60 (3 star) |
128.50 (1 star) |
54.40 (4 star) |
127.00 (1 star) |
97.50 (3 star) |
| Jun 2010 | 84.40 (3 star) |
84.70 (3 star) |
88.20 (3 star) |
113.90 (2 star) |
46.40 (5 star) |
104.50 (2 star) |
83.50 (3 star) |
| Jul 2010 | 83.50 (3 star) |
87.90 (3 star) |
96.90 (3 star) |
112.40 (2 star) |
46.60 (5 star) |
103.70 (2 star) |
84.00 (3 star) |
| Aug 2010 | 85.00 (3 star) |
89.00 (3 star) |
107.30 (2 star) |
110.60 (2 star) |
48.10 (5 star) |
106.10 (2 star) |
86.50 (3 star) |
| Sep 2010 | 89.20 (3 star) |
93.50 (3 star) |
117.70 (2 star) |
121.40 (2 star) |
53.40 (4 star) |
116.80 (2 star) |
93.00 (3 star) |
| Oct 2010 | 86.30 (3 star) |
97.10 (3 star) |
115.40 (2 star) |
127.30 (1 star) |
57.50 (4 star) |
118.50 (2 star) |
94.00 (3 star) |
| Nov 2010 | 86.50 (3 star) |
105.80 (2 star) |
114.80 (2 star) |
140.20 (1 star) |
68.60 (4 star) |
116.30 (2 star) |
98.70 (3 star) |
| Dec 2010 | 83.80 (3 star) |
103.30 (2 star) |
106.70 (2 star) |
133.50 (1 star) |
72.40 (4 star) |
103.40 (2 star) |
95.20 (3 star) |
| Jan 2011 | 81.80 (3 star) |
101.20 (2 star) |
105.00 (2 star) |
128.50 (1 star) |
73.40 (4 star) |
96.50 (3 star) |
93.00 (3 star) |
| Feb 2011 | 76.00 (3 star) |
96.90 (3 star) |
101.20 (2 star) |
115.70 (2 star) |
64.50 (4 star) |
96.90 (3 star) |
86.90 (3 star) |
| Mar 2011 | 74.40 (4 star) |
99.10 (3 star) |
106.20 (2 star) |
111.50 (2 star) |
58.00 (4 star) |
103.50 (2 star) |
86.30 (3 star) |
| Apr 2011 | 65.10 (4 star) |
85.30 (3 star) |
97.70 (3 star) |
96.40 (3 star) |
46.70 (5 star) |
97.90 (3 star) |
75.70 (3 star) |
| May 2011 | 60.60 (4 star) |
77.00 (3 star) |
101.40 (2 star) |
88.80 (3 star) |
41.00 (5 star) |
92.50 (3 star) |
70.80 (4 star) |
| Jun 2011 | 55.20 (4 star) |
71.00 (4 star) |
126.40 (1 star) |
82.40 (3 star) |
36.30 (5 star) |
89.20 (3 star) |
68.80 (4 star) |
| Jul 2011 | 63.00 (4 star) |
78.10 (3 star) |
194.10 (0 star) |
84.90 (3 star) |
38.50 (5 star) |
92.90 (3 star) |
80.80 (3 star) |
| Aug 2011 | 65.20 (4 star) |
84.40 (3 star) |
224.90 (0 star) |
92.40 (3 star) |
40.80 (5 star) |
90.00 (3 star) |
86.70 (3 star) |
| Sep 2011 | 64.50 (4 star) |
86.10 (3 star) |
219.40 (0 star) |
102.20 (2 star) |
41.10 (5 star) |
81.40 (3 star) |
86.40 (3 star) |
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Notes:
- Consumer Focus has created a proxy for performance based on the number of consumers that have contacted an independent organisation for advice or support with an energy problem. The companies have been ranked on the number of customer contacts to Consumer Direct, Consumer Focus and the Energy Ombudsman in relation to their market share during the last quarter.
- The different types of complaint have been weighted to reflect the seriousness of the complaint and the time and effort spent by the consumer to get their problem resolved. Click on the methodology tab to see full details of the model.
- 5 stars indicates best performing companies, 0 stars indicates worst performing companies
- Includes Scottish Gas
- Includes Atlantic, Scottish Hydro Electric, Southern Electric, SWALEC
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