Solar Panel Installation in South East
6.0 kWp
Typical system size
1029 kWh/kW
Annual sunshine
26.92p
Electricity rate
47.60p/day
Standing charge
£1,146
Annual net benefit (median)
Rates from Ofgem 2025Q4. Yield data from PVGIS (south-facing, optimal tilt).
Solar potential varies by 19% across South East — location matters even within the same region.
Highest solar potential
BN26 (Wealden)
1155 kWh/kW
Annual net benefit (5 kW):
£968
/year
BN20 (Eastbourne)
1141 kWh/kW
Annual net benefit (5 kW):
£957
/year
TN28 (Folkestone and Hythe)
1139 kWh/kW
Annual net benefit (5 kW):
£955
/year
BN22 (Eastbourne)
1138 kWh/kW
Annual net benefit (5 kW):
£954
/year
BN51 (Brighton and Hove)
1137 kWh/kW
Annual net benefit (5 kW):
£953
/year
Lower potential areas
Still viable with the right tariff and usage patterns.
CR8 (Croydon)
971 kWh/kW
Annual net benefit (5 kW):
£814
/year
CR5 (Croydon)
983 kWh/kW
Annual net benefit (5 kW):
£824
/year
CR3 (Tandridge)
986 kWh/kW
Annual net benefit (5 kW):
£826
/year
GU4 (Guildford)
987 kWh/kW
Annual net benefit (5 kW):
£828
/year
KT22 (Mole Valley)
989 kWh/kW
Annual net benefit (5 kW):
£829
/year
17% of properties here use oil or LPG heating — ideal candidates for heat pump and solar combinations.
Check your exact costs and payback
Enter your postcode to see personalised calculations for your area.
Enter the first part only (before the space). We’ll take you to your page.
All postcodes in South East
Select your postcode area to see exact costs, break-even time, and local installers. Sorted A–Z. Showing 209 postcode areas.
BN1
Brighton and Hove
Annual sunshine:
1118 kWh/kW
Annual net benefit (5 kW):
£938
BN10
Lewes
Annual sunshine:
1123 kWh/kW
Annual net benefit (5 kW):
£941
BN11
Worthing
Annual sunshine:
1119 kWh/kW
Annual net benefit (5 kW):
£938
BN12
Worthing
Annual sunshine:
1123 kWh/kW
Annual net benefit (5 kW):
£942
BN13
Worthing
Annual sunshine:
1119 kWh/kW
Annual net benefit (5 kW):
£938
BN14
Worthing
Annual sunshine:
1119 kWh/kW
Annual net benefit (5 kW):
£939
BN15
Adur
Annual sunshine:
1112 kWh/kW
Annual net benefit (5 kW):
£932
BN16
Arun
Annual sunshine:
1128 kWh/kW
Annual net benefit (5 kW):
£946
BN17
Arun
Annual sunshine:
1126 kWh/kW
Annual net benefit (5 kW):
£944
BN2
Brighton and Hove
Annual sunshine:
1120 kWh/kW
Annual net benefit (5 kW):
£939
BN20
Eastbourne
Annual sunshine:
1141 kWh/kW
Annual net benefit (5 kW):
£957
BN21
Eastbourne
Annual sunshine:
1135 kWh/kW
Annual net benefit (5 kW):
£952
BN22
Eastbourne
Annual sunshine:
1138 kWh/kW
Annual net benefit (5 kW):
£954
BN23
Eastbourne
Annual sunshine:
1126 kWh/kW
Annual net benefit (5 kW):
£944
BN24
Wealden
Annual sunshine:
1137 kWh/kW
Annual net benefit (5 kW):
£953
BN25
Lewes
Annual sunshine:
1131 kWh/kW
Annual net benefit (5 kW):
£948
BN26
Wealden
Annual sunshine:
1155 kWh/kW
Annual net benefit (5 kW):
£968
BN27
Wealden
Annual sunshine:
1134 kWh/kW
Annual net benefit (5 kW):
£951
BN3
Brighton and Hove
Annual sunshine:
1113 kWh/kW
Annual net benefit (5 kW):
£933
BN4
Adur
Annual sunshine:
1110 kWh/kW
Annual net benefit (5 kW):
£931
BN41
Brighton and Hove
Annual sunshine:
1110 kWh/kW
Annual net benefit (5 kW):
£931
BN42
Adur
Annual sunshine:
1110 kWh/kW
Annual net benefit (5 kW):
£931
BN43
Adur
Annual sunshine:
1109 kWh/kW
Annual net benefit (5 kW):
£930
BN44
Horsham
Annual sunshine:
1086 kWh/kW
Annual net benefit (5 kW):
£910
BN45
Mid Sussex
Annual sunshine:
1068 kWh/kW
Annual net benefit (5 kW):
£895
BN5
Horsham
Annual sunshine:
1083 kWh/kW
Annual net benefit (5 kW):
£908
BN50
Brighton and Hove
Annual sunshine:
1118 kWh/kW
Annual net benefit (5 kW):
£938
BN51
Brighton and Hove
Annual sunshine:
1137 kWh/kW
Annual net benefit (5 kW):
£953
BN52
Brighton and Hove
Annual sunshine:
1113 kWh/kW
Annual net benefit (5 kW):
£933
BN6
Mid Sussex
Annual sunshine:
1084 kWh/kW
Annual net benefit (5 kW):
£909
BN7
Lewes
Annual sunshine:
1126 kWh/kW
Annual net benefit (5 kW):
£944
BN8
Lewes
Annual sunshine:
1067 kWh/kW
Annual net benefit (5 kW):
£894
BN88
Brighton and Hove
Annual sunshine:
1120 kWh/kW
Annual net benefit (5 kW):
£939
BN9
Lewes
Annual sunshine:
1138 kWh/kW
Annual net benefit (5 kW):
£954
BN95
Adur
Annual sunshine:
1112 kWh/kW
Annual net benefit (5 kW):
£932
BN99
Adur
Annual sunshine:
1119 kWh/kW
Annual net benefit (5 kW):
£938
BR2
Bromley
Annual sunshine:
999 kWh/kW
Annual net benefit (5 kW):
£838
BR4
Bromley
Annual sunshine:
1000 kWh/kW
Annual net benefit (5 kW):
£838
BR5
Bromley
Annual sunshine:
1011 kWh/kW
Annual net benefit (5 kW):
£847
BR6
Bromley
Annual sunshine:
1010 kWh/kW
Annual net benefit (5 kW):
£847
BR8
Sevenoaks
Annual sunshine:
1010 kWh/kW
Annual net benefit (5 kW):
£847
CR0
Croydon
Annual sunshine:
996 kWh/kW
Annual net benefit (5 kW):
£835
CR2
Croydon
Annual sunshine:
990 kWh/kW
Annual net benefit (5 kW):
£830
CR3
Tandridge
Annual sunshine:
986 kWh/kW
Annual net benefit (5 kW):
£826
CR44
Sutton
Annual sunshine:
990 kWh/kW
Annual net benefit (5 kW):
£830
CR5
Croydon
Annual sunshine:
983 kWh/kW
Annual net benefit (5 kW):
£824
CR6
Tandridge
Annual sunshine:
998 kWh/kW
Annual net benefit (5 kW):
£837
CR7
Croydon
Annual sunshine:
990 kWh/kW
Annual net benefit (5 kW):
£830
CR8
Croydon
Annual sunshine:
971 kWh/kW
Annual net benefit (5 kW):
£814
CR9
Croydon
Annual sunshine:
996 kWh/kW
Annual net benefit (5 kW):
£835
CR90
Croydon
Annual sunshine:
990 kWh/kW
Annual net benefit (5 kW):
£830
CT1
Canterbury
Annual sunshine:
1063 kWh/kW
Annual net benefit (5 kW):
£891
CT10
Thanet
Annual sunshine:
1071 kWh/kW
Annual net benefit (5 kW):
£898
CT11
Thanet
Annual sunshine:
1078 kWh/kW
Annual net benefit (5 kW):
£904
CT12
Thanet
Annual sunshine:
1094 kWh/kW
Annual net benefit (5 kW):
£918
CT13
Dover
Annual sunshine:
1100 kWh/kW
Annual net benefit (5 kW):
£922
CT14
Dover
Annual sunshine:
1086 kWh/kW
Annual net benefit (5 kW):
£911
CT15
Dover
Annual sunshine:
1110 kWh/kW
Annual net benefit (5 kW):
£930
CT16
Dover
Annual sunshine:
1089 kWh/kW
Annual net benefit (5 kW):
£913
CT17
Dover
Annual sunshine:
1089 kWh/kW
Annual net benefit (5 kW):
£913
CT18
Folkestone and Hythe
Annual sunshine:
1088 kWh/kW
Annual net benefit (5 kW):
£912
CT19
Folkestone and Hythe
Annual sunshine:
1111 kWh/kW
Annual net benefit (5 kW):
£932
CT2
Canterbury
Annual sunshine:
1087 kWh/kW
Annual net benefit (5 kW):
£911
CT20
Folkestone and Hythe
Annual sunshine:
1111 kWh/kW
Annual net benefit (5 kW):
£931
CT21
Folkestone and Hythe
Annual sunshine:
1090 kWh/kW
Annual net benefit (5 kW):
£913
CT3
Dover
Annual sunshine:
1106 kWh/kW
Annual net benefit (5 kW):
£927
CT4
Canterbury
Annual sunshine:
1087 kWh/kW
Annual net benefit (5 kW):
£911
CT5
Canterbury
Annual sunshine:
1047 kWh/kW
Annual net benefit (5 kW):
£878
CT50
Folkestone and Hythe
Annual sunshine:
1111 kWh/kW
Annual net benefit (5 kW):
£932
CT6
Canterbury
Annual sunshine:
1069 kWh/kW
Annual net benefit (5 kW):
£896
CT7
Thanet
Annual sunshine:
1091 kWh/kW
Annual net benefit (5 kW):
£915
CT8
Thanet
Annual sunshine:
1092 kWh/kW
Annual net benefit (5 kW):
£916
CT9
Thanet
Annual sunshine:
1086 kWh/kW
Annual net benefit (5 kW):
£910
DA10
Dartford
Annual sunshine:
1027 kWh/kW
Annual net benefit (5 kW):
£861
DA11
Gravesham
Annual sunshine:
1028 kWh/kW
Annual net benefit (5 kW):
£862
DA12
Gravesham
Annual sunshine:
1028 kWh/kW
Annual net benefit (5 kW):
£862
DA13
Gravesham
Annual sunshine:
1027 kWh/kW
Annual net benefit (5 kW):
£861
DA2
Dartford
Annual sunshine:
1024 kWh/kW
Annual net benefit (5 kW):
£859
DA3
Sevenoaks
Annual sunshine:
1025 kWh/kW
Annual net benefit (5 kW):
£859
DA4
Sevenoaks
Annual sunshine:
1015 kWh/kW
Annual net benefit (5 kW):
£851
DA9
Dartford
Annual sunshine:
1025 kWh/kW
Annual net benefit (5 kW):
£859
GU1
Guildford
Annual sunshine:
997 kWh/kW
Annual net benefit (5 kW):
£836
GU2
Guildford
Annual sunshine:
994 kWh/kW
Annual net benefit (5 kW):
£833
GU21
Woking
Annual sunshine:
996 kWh/kW
Annual net benefit (5 kW):
£835
GU22
Woking
Annual sunshine:
996 kWh/kW
Annual net benefit (5 kW):
£835
GU23
Guildford
Annual sunshine:
997 kWh/kW
Annual net benefit (5 kW):
£836
GU3
Guildford
Annual sunshine:
999 kWh/kW
Annual net benefit (5 kW):
£837
GU4
Guildford
Annual sunshine:
987 kWh/kW
Annual net benefit (5 kW):
£828
GU5
Guildford
Annual sunshine:
997 kWh/kW
Annual net benefit (5 kW):
£836
GU6
Waverley
Annual sunshine:
1021 kWh/kW
Annual net benefit (5 kW):
£856
KT1
Kingston upon Thames
Annual sunshine:
997 kWh/kW
Annual net benefit (5 kW):
£836
KT10
Elmbridge
Annual sunshine:
998 kWh/kW
Annual net benefit (5 kW):
£837
KT11
Elmbridge
Annual sunshine:
997 kWh/kW
Annual net benefit (5 kW):
£836
KT12
Elmbridge
Annual sunshine:
996 kWh/kW
Annual net benefit (5 kW):
£835
KT13
Elmbridge
Annual sunshine:
996 kWh/kW
Annual net benefit (5 kW):
£835
KT14
Woking
Annual sunshine:
995 kWh/kW
Annual net benefit (5 kW):
£835
KT15
Runnymede
Annual sunshine:
997 kWh/kW
Annual net benefit (5 kW):
£836
KT16
Runnymede
Annual sunshine:
997 kWh/kW
Annual net benefit (5 kW):
£836
KT17
Epsom and Ewell
Annual sunshine:
990 kWh/kW
Annual net benefit (5 kW):
£830
KT18
Epsom and Ewell
Annual sunshine:
990 kWh/kW
Annual net benefit (5 kW):
£830
KT19
Epsom and Ewell
Annual sunshine:
996 kWh/kW
Annual net benefit (5 kW):
£835
KT2
Kingston upon Thames
Annual sunshine:
997 kWh/kW
Annual net benefit (5 kW):
£836
KT20
Reigate and Banstead
Annual sunshine:
998 kWh/kW
Annual net benefit (5 kW):
£837
KT21
Mole Valley
Annual sunshine:
989 kWh/kW
Annual net benefit (5 kW):
£829
KT22
Mole Valley
Annual sunshine:
989 kWh/kW
Annual net benefit (5 kW):
£829
KT23
Mole Valley
Annual sunshine:
1002 kWh/kW
Annual net benefit (5 kW):
£840
KT24
Guildford
Annual sunshine:
997 kWh/kW
Annual net benefit (5 kW):
£836
KT4
Sutton
Annual sunshine:
998 kWh/kW
Annual net benefit (5 kW):
£837
KT5
Kingston upon Thames
Annual sunshine:
997 kWh/kW
Annual net benefit (5 kW):
£836
KT6
Kingston upon Thames
Annual sunshine:
998 kWh/kW
Annual net benefit (5 kW):
£837
KT7
Elmbridge
Annual sunshine:
998 kWh/kW
Annual net benefit (5 kW):
£837
KT8
Elmbridge
Annual sunshine:
998 kWh/kW
Annual net benefit (5 kW):
£837
KT9
Kingston upon Thames
Annual sunshine:
998 kWh/kW
Annual net benefit (5 kW):
£837
ME1
Medway
Annual sunshine:
1018 kWh/kW
Annual net benefit (5 kW):
£853
ME10
Swale
Annual sunshine:
1048 kWh/kW
Annual net benefit (5 kW):
£879
ME11
Swale
Annual sunshine:
1055 kWh/kW
Annual net benefit (5 kW):
£885
ME12
Swale
Annual sunshine:
1059 kWh/kW
Annual net benefit (5 kW):
£888
ME13
Swale
Annual sunshine:
1044 kWh/kW
Annual net benefit (5 kW):
£875
ME14
Maidstone
Annual sunshine:
1024 kWh/kW
Annual net benefit (5 kW):
£858
ME15
Maidstone
Annual sunshine:
1044 kWh/kW
Annual net benefit (5 kW):
£876
ME16
Maidstone
Annual sunshine:
1027 kWh/kW
Annual net benefit (5 kW):
£861
ME17
Maidstone
Annual sunshine:
1034 kWh/kW
Annual net benefit (5 kW):
£867
ME18
Maidstone
Annual sunshine:
1032 kWh/kW
Annual net benefit (5 kW):
£865
ME19
Tonbridge and Malling
Annual sunshine:
1032 kWh/kW
Annual net benefit (5 kW):
£865
ME2
Medway
Annual sunshine:
1016 kWh/kW
Annual net benefit (5 kW):
£852
ME20
Tonbridge and Malling
Annual sunshine:
1030 kWh/kW
Annual net benefit (5 kW):
£864
ME3
Medway
Annual sunshine:
1058 kWh/kW
Annual net benefit (5 kW):
£887
ME4
Medway
Annual sunshine:
1040 kWh/kW
Annual net benefit (5 kW):
£872
ME5
Medway
Annual sunshine:
1017 kWh/kW
Annual net benefit (5 kW):
£852
ME6
Tonbridge and Malling
Annual sunshine:
1023 kWh/kW
Annual net benefit (5 kW):
£858
ME7
Medway
Annual sunshine:
1018 kWh/kW
Annual net benefit (5 kW):
£854
ME8
Medway
Annual sunshine:
1034 kWh/kW
Annual net benefit (5 kW):
£867
ME9
Swale
Annual sunshine:
1048 kWh/kW
Annual net benefit (5 kW):
£879
ME99
Maidstone
Annual sunshine:
1017 kWh/kW
Annual net benefit (5 kW):
£853
RH1
Reigate and Banstead
Annual sunshine:
1008 kWh/kW
Annual net benefit (5 kW):
£845
RH10
Crawley
Annual sunshine:
1005 kWh/kW
Annual net benefit (5 kW):
£843
RH11
Crawley
Annual sunshine:
1008 kWh/kW
Annual net benefit (5 kW):
£845
RH12
Horsham
Annual sunshine:
1006 kWh/kW
Annual net benefit (5 kW):
£844
RH13
Horsham
Annual sunshine:
1024 kWh/kW
Annual net benefit (5 kW):
£859
RH15
Mid Sussex
Annual sunshine:
1060 kWh/kW
Annual net benefit (5 kW):
£889
RH16
Mid Sussex
Annual sunshine:
1029 kWh/kW
Annual net benefit (5 kW):
£863
RH17
Mid Sussex
Annual sunshine:
1033 kWh/kW
Annual net benefit (5 kW):
£866
RH18
Wealden
Annual sunshine:
1019 kWh/kW
Annual net benefit (5 kW):
£854
RH19
Mid Sussex
Annual sunshine:
1007 kWh/kW
Annual net benefit (5 kW):
£844
RH2
Reigate and Banstead
Annual sunshine:
1012 kWh/kW
Annual net benefit (5 kW):
£848
RH20
Horsham
Annual sunshine:
1052 kWh/kW
Annual net benefit (5 kW):
£882
RH3
Mole Valley
Annual sunshine:
1015 kWh/kW
Annual net benefit (5 kW):
£851
RH4
Mole Valley
Annual sunshine:
1012 kWh/kW
Annual net benefit (5 kW):
£849
RH5
Mole Valley
Annual sunshine:
1012 kWh/kW
Annual net benefit (5 kW):
£848
RH6
Reigate and Banstead
Annual sunshine:
1005 kWh/kW
Annual net benefit (5 kW):
£843
RH7
Tandridge
Annual sunshine:
1014 kWh/kW
Annual net benefit (5 kW):
£850
RH77
Crawley
Annual sunshine:
1007 kWh/kW
Annual net benefit (5 kW):
£844
RH8
Tandridge
Annual sunshine:
1006 kWh/kW
Annual net benefit (5 kW):
£843
RH9
Tandridge
Annual sunshine:
1003 kWh/kW
Annual net benefit (5 kW):
£841
SE19
Croydon
Annual sunshine:
996 kWh/kW
Annual net benefit (5 kW):
£835
SE25
Croydon
Annual sunshine:
996 kWh/kW
Annual net benefit (5 kW):
£835
SM1
Sutton
Annual sunshine:
995 kWh/kW
Annual net benefit (5 kW):
£834
SM2
Sutton
Annual sunshine:
995 kWh/kW
Annual net benefit (5 kW):
£834
SM3
Sutton
Annual sunshine:
995 kWh/kW
Annual net benefit (5 kW):
£834
SM5
Sutton
Annual sunshine:
995 kWh/kW
Annual net benefit (5 kW):
£834
SM6
Sutton
Annual sunshine:
995 kWh/kW
Annual net benefit (5 kW):
£834
SM7
Reigate and Banstead
Annual sunshine:
991 kWh/kW
Annual net benefit (5 kW):
£831
TN1
Tunbridge Wells
Annual sunshine:
1029 kWh/kW
Annual net benefit (5 kW):
£863
TN10
Tonbridge and Malling
Annual sunshine:
1034 kWh/kW
Annual net benefit (5 kW):
£867
TN11
Tonbridge and Malling
Annual sunshine:
1042 kWh/kW
Annual net benefit (5 kW):
£873
TN12
Tunbridge Wells
Annual sunshine:
1056 kWh/kW
Annual net benefit (5 kW):
£886
TN13
Sevenoaks
Annual sunshine:
1015 kWh/kW
Annual net benefit (5 kW):
£851
TN14
Sevenoaks
Annual sunshine:
1023 kWh/kW
Annual net benefit (5 kW):
£858
TN15
Sevenoaks
Annual sunshine:
1023 kWh/kW
Annual net benefit (5 kW):
£858
TN16
Bromley
Annual sunshine:
1009 kWh/kW
Annual net benefit (5 kW):
£846
TN17
Tunbridge Wells
Annual sunshine:
1046 kWh/kW
Annual net benefit (5 kW):
£877
TN18
Tunbridge Wells
Annual sunshine:
1076 kWh/kW
Annual net benefit (5 kW):
£902
TN19
Rother
Annual sunshine:
1052 kWh/kW
Annual net benefit (5 kW):
£882
TN2
Tunbridge Wells
Annual sunshine:
1029 kWh/kW
Annual net benefit (5 kW):
£863
TN20
Wealden
Annual sunshine:
1041 kWh/kW
Annual net benefit (5 kW):
£873
TN21
Wealden
Annual sunshine:
1049 kWh/kW
Annual net benefit (5 kW):
£879
TN22
Wealden
Annual sunshine:
1055 kWh/kW
Annual net benefit (5 kW):
£884
TN23
Ashford
Annual sunshine:
1088 kWh/kW
Annual net benefit (5 kW):
£912
TN24
Ashford
Annual sunshine:
1093 kWh/kW
Annual net benefit (5 kW):
£917
TN25
Ashford
Annual sunshine:
1059 kWh/kW
Annual net benefit (5 kW):
£888
TN26
Ashford
Annual sunshine:
1088 kWh/kW
Annual net benefit (5 kW):
£912
TN27
Ashford
Annual sunshine:
1042 kWh/kW
Annual net benefit (5 kW):
£873
TN28
Folkestone and Hythe
Annual sunshine:
1139 kWh/kW
Annual net benefit (5 kW):
£955
TN29
Folkestone and Hythe
Annual sunshine:
1123 kWh/kW
Annual net benefit (5 kW):
£941
TN3
Tunbridge Wells
Annual sunshine:
1023 kWh/kW
Annual net benefit (5 kW):
£858
TN30
Ashford
Annual sunshine:
1094 kWh/kW
Annual net benefit (5 kW):
£917
TN31
Rother
Annual sunshine:
1104 kWh/kW
Annual net benefit (5 kW):
£926
TN32
Rother
Annual sunshine:
1073 kWh/kW
Annual net benefit (5 kW):
£900
TN33
Rother
Annual sunshine:
1093 kWh/kW
Annual net benefit (5 kW):
£916
TN34
Hastings
Annual sunshine:
1125 kWh/kW
Annual net benefit (5 kW):
£943
TN35
Hastings
Annual sunshine:
1124 kWh/kW
Annual net benefit (5 kW):
£942
TN36
Rother
Annual sunshine:
1103 kWh/kW
Annual net benefit (5 kW):
£925
TN37
Hastings
Annual sunshine:
1125 kWh/kW
Annual net benefit (5 kW):
£943
TN38
Hastings
Annual sunshine:
1124 kWh/kW
Annual net benefit (5 kW):
£943
TN39
Rother
Annual sunshine:
1116 kWh/kW
Annual net benefit (5 kW):
£935
TN4
Tunbridge Wells
Annual sunshine:
1028 kWh/kW
Annual net benefit (5 kW):
£862
TN40
Rother
Annual sunshine:
1115 kWh/kW
Annual net benefit (5 kW):
£935
TN5
Wealden
Annual sunshine:
1045 kWh/kW
Annual net benefit (5 kW):
£876
TN6
Wealden
Annual sunshine:
1026 kWh/kW
Annual net benefit (5 kW):
£860
TN7
Wealden
Annual sunshine:
1019 kWh/kW
Annual net benefit (5 kW):
£854
TN8
Sevenoaks
Annual sunshine:
1024 kWh/kW
Annual net benefit (5 kW):
£858
TN9
Tonbridge and Malling
Annual sunshine:
1028 kWh/kW
Annual net benefit (5 kW):
£862
TW1
Richmond upon Thames
Annual sunshine:
991 kWh/kW
Annual net benefit (5 kW):
£831
TW10
Richmond upon Thames
Annual sunshine:
995 kWh/kW
Annual net benefit (5 kW):
£834
TW11
Richmond upon Thames
Annual sunshine:
998 kWh/kW
Annual net benefit (5 kW):
£836
TW12
Richmond upon Thames
Annual sunshine:
1000 kWh/kW
Annual net benefit (5 kW):
£838
TW17
Spelthorne
Annual sunshine:
997 kWh/kW
Annual net benefit (5 kW):
£836
TW2
Richmond upon Thames
Annual sunshine:
998 kWh/kW
Annual net benefit (5 kW):
£837
TW9
Richmond upon Thames
Annual sunshine:
991 kWh/kW
Annual net benefit (5 kW):
£831
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