How cheap do energy suppliers get? The key to making the right electricity and gas choice.
Know what you want
Saving money is important but it is not the only criterion for choosing your energy supplier. Other criteria, such as whether you want a fixedrate or variableprice plan, how green you want your energy to be, whether or not you are prepared to manage your account online, etc., should also be considered.
Read the fine print
Cheap energy suppliers sometimes hide certain fees. Early exit fees, for example, can rise up to £50 per fuel, which might add £100 to your yearly energy bill if you decide to switch before the end of a fixedrate energy plan.
Average prices
Here are June 2014 average annual energy costs for the average UK energy electricity (3,200 kWh/year) and gas (13,500 kWh/year) consumption.
 First:Utility stands out as the cheapest energy supplier (oneyear fixed plan).
 EDF Energy is the cheapest Big Six supplier.
 Spark Energy is the cheapest supplier with a variable tariff.
 Green Star Energy is the cheapest supplier with a twoyear fixed tariff.
 Ovo Energy is the cheapest green supplier.
 Green Star Energy is the cheapest supplier with a threeyear fixed tariff.
Supplier 
Tariff name 
Tariff type 
Estimated annual cost (GBP) 

iSave Fixed August 2015 
Fixed 1 year 2 months 
993 

Fixed Price September 2015 
Fixed 1 year 3 months 
1010 

Thames Online Fixed September 2015 
Fixed 1 year 2 months 
1024 

Cheaper Energy Fixed (One Year) 
Fixed 1 year 
1029 

No Worries 12 Months Fixed 
Fixed 1 year 
1035 

Blue+Price Promise August 2015 
Fixed 1 year 2 months 
1049 

Direct Debit Advance 4 
Variable 
1063 

No Worries 24 Months Fixed 
Fixed 2 years 
1068 

iSave Fixed September 2016 
Fixed 2 years 3 months 
1073 

Fixed Price August 2015 
Fixed 1 year 2 months 
1076 

Online Fixed Price Energy July 2015 
FIxed 1 year 1 month 
1076 

Fixed Price August 2015 
Fixed 1 year 2 months 
1085 

Greener Energy Fixed Online (1 Year) 
Fixed 1 year 
1088 

Better Energy Fixed (1 Year) 
Fixed 1 year 
1089 

Better Energy 
Fixed 1 year 
1089 

1 Year Fixed Price 
Fixed 1 year 
1092 

No Worries Variable 
Variable 
1097 

1 Year Fixed Price 
Fixed 1 year 
1109 

Super Saver 
Variable 
1110 

Cheaper Energy (Fixed to June 2016) 
Fixed 2 years 
1126 

1 Year Fixed Price 
Fixed 1 year 
1127 

Double Gold 
Variable 
1128 

Fixed Price Sept 2015 
Fixed 1 year 3 months 
1130 

Fixed Price April 2016 
Fixed 1 year 10 months 
1140 

Fixed One Year 
Fixed 1 year 
1141 

Standard Variable 
Variable 
1145 

Greener Energy 
Fixed 1 year 
1148 

1 Year Fixed Price 
Fixed 1 year 
1149 
AVERAGE 
1150 

Greener Energy Fixed (1 Year) 
Fixed 1 year 
1154 

Fixed Price Energy June 2016 Online 
Fixed 2 years 3 months 
1155 

Gold 
Variable 
1158 

iSave Everyday 
Variable 
1161 

Standard 
Fixed 2 years 9 months 
1162 

Fixed Price March 2017 
Variable 
1162 

Standard 
Variable 
1164 

Online Price Fix April 2016 
Fixed 1 year 10 months 
1164 
MEDIAN 
1165 

No Worries 36 Months Fixed 
Fixed 3 years 
1169 

Energy Plan 
Variable 
1170 

Pioneer  DD 
Variable 
1173 

Variable Price 
Variable 
1173 

iSave Fixed September 2017 
Fixed 3 years 3 months 
1177 

Better Energy (Fixed to June 2016) 
Fixed 1 year 
1179 

Fixed Price March 2017 
Fixed 2 years 9 months 
1180 

Standard 
Variable 
1180 

Value 
Variable 
1182 

Fixed to May 2016 
Fixed 1 year 11 months 
1186 

Price Protector September 2016 
Fixed 2 years 3 months 
1186 

Standard Energy 
Variable 
1190 

Online Energy 
Variable 
1191 

Fixed 2 Year 
Fixed 2 years 
1193 

Age UK Fixed 2 Year 
Fixed 2 years 
1193 

Double Gold Fixed Price 
Fixed 3 years 10 months 
1194 

Standard 
Variable 
1195 

Standard 
Variable 
1196 

Fix & Reward August 2015 
Fixed 1 year 2 months 
1196 

Fix & Reward August 2015 
Fixed 1 year 2 months 
1196 

Fixed Price March 2017 
Fixed 2 years 9 months 
1199 

Standard 
Variable 
1199 

Good Energy 
Variable 
1200 

Standard 
Variable 
1206 

Blue+Price Freeze July 2017 
Fixed 3 years 1 month 
1209 

Help Beat Cancer Fixed Price Energy Online April 2017 
Fixed 2 years 10 months 
1214 

Intelligent Fix April 2017 
Fixed 2 years 10 months 
1218 

Standard 
Fixed 2 years 9 months 
1221 

Fixed Price March 2017 
Variable 
1221 

Fixed to March 2017 
Fixed 2 years 9 months 
1225 

Fixed Price January 2017 
Fixed 2 years 7 months 
1226 

Green Electricity 
Variable 
1233 

Fixed 
1 year 
1233 

Direct Debit Saver 
Variable 
1237 

Equidual 
Variable 
1287 
A few precautions
The following table compares all energy suppliers with:
 dualfuel plans;
 online account management;
 monthly direct debit.
This is what most people choose. However, it does not compare:
 prepaid energy plans;
 Economy 7 energy plans;
 singlefuel energy plans;
 paper billing energy plans.
Furthermore, these are average UK figures. Yet prices vary from one region to another. This makes the table a good indication of the cheaper v. the more expensive suppliers on average but probably does not reflect your specific situation. Your comparison should rest on your postcode and exact energy consumption.