Solar Panel Installation in South East
6.0 kWp
Typical system size
1029 kWh/kW
Annual sunshine
23.53p
Electricity rate
54.74p/day
Standing charge
£1,028
Annual net benefit (median)
Rates from Ofgem 2026Q2. 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):
£890
/year
BN20 (Eastbourne)
1141 kWh/kW
Annual net benefit (5 kW):
£879
/year
TN28 (Folkestone and Hythe)
1139 kWh/kW
Annual net benefit (5 kW):
£877
/year
BN22 (Eastbourne)
1138 kWh/kW
Annual net benefit (5 kW):
£877
/year
BN51 (Brighton and Hove)
1137 kWh/kW
Annual net benefit (5 kW):
£876
/year
Lower potential areas
Still viable with the right tariff and usage patterns.
CR8 (Croydon)
971 kWh/kW
Annual net benefit (5 kW):
£748
/year
CR5 (Croydon)
983 kWh/kW
Annual net benefit (5 kW):
£758
/year
CR3 (Tandridge)
986 kWh/kW
Annual net benefit (5 kW):
£760
/year
GU4 (Guildford)
987 kWh/kW
Annual net benefit (5 kW):
£761
/year
KT22 (Mole Valley)
989 kWh/kW
Annual net benefit (5 kW):
£762
/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):
£862
BN10
Lewes
Annual sunshine:
1123 kWh/kW
Annual net benefit (5 kW):
£865
BN11
Worthing
Annual sunshine:
1119 kWh/kW
Annual net benefit (5 kW):
£862
BN12
Worthing
Annual sunshine:
1123 kWh/kW
Annual net benefit (5 kW):
£866
BN13
Worthing
Annual sunshine:
1119 kWh/kW
Annual net benefit (5 kW):
£862
BN14
Worthing
Annual sunshine:
1119 kWh/kW
Annual net benefit (5 kW):
£863
BN15
Adur
Annual sunshine:
1112 kWh/kW
Annual net benefit (5 kW):
£857
BN16
Arun
Annual sunshine:
1128 kWh/kW
Annual net benefit (5 kW):
£869
BN17
Arun
Annual sunshine:
1126 kWh/kW
Annual net benefit (5 kW):
£868
BN2
Brighton and Hove
Annual sunshine:
1120 kWh/kW
Annual net benefit (5 kW):
£863
BN20
Eastbourne
Annual sunshine:
1141 kWh/kW
Annual net benefit (5 kW):
£879
BN21
Eastbourne
Annual sunshine:
1135 kWh/kW
Annual net benefit (5 kW):
£875
BN22
Eastbourne
Annual sunshine:
1138 kWh/kW
Annual net benefit (5 kW):
£877
BN23
Eastbourne
Annual sunshine:
1126 kWh/kW
Annual net benefit (5 kW):
£868
BN24
Wealden
Annual sunshine:
1137 kWh/kW
Annual net benefit (5 kW):
£876
BN25
Lewes
Annual sunshine:
1131 kWh/kW
Annual net benefit (5 kW):
£871
BN26
Wealden
Annual sunshine:
1155 kWh/kW
Annual net benefit (5 kW):
£890
BN27
Wealden
Annual sunshine:
1134 kWh/kW
Annual net benefit (5 kW):
£874
BN3
Brighton and Hove
Annual sunshine:
1113 kWh/kW
Annual net benefit (5 kW):
£858
BN4
Adur
Annual sunshine:
1110 kWh/kW
Annual net benefit (5 kW):
£855
BN41
Brighton and Hove
Annual sunshine:
1110 kWh/kW
Annual net benefit (5 kW):
£855
BN42
Adur
Annual sunshine:
1110 kWh/kW
Annual net benefit (5 kW):
£855
BN43
Adur
Annual sunshine:
1109 kWh/kW
Annual net benefit (5 kW):
£855
BN44
Horsham
Annual sunshine:
1086 kWh/kW
Annual net benefit (5 kW):
£837
BN45
Mid Sussex
Annual sunshine:
1068 kWh/kW
Annual net benefit (5 kW):
£823
BN5
Horsham
Annual sunshine:
1083 kWh/kW
Annual net benefit (5 kW):
£834
BN50
Brighton and Hove
Annual sunshine:
1118 kWh/kW
Annual net benefit (5 kW):
£862
BN51
Brighton and Hove
Annual sunshine:
1137 kWh/kW
Annual net benefit (5 kW):
£876
BN52
Brighton and Hove
Annual sunshine:
1113 kWh/kW
Annual net benefit (5 kW):
£858
BN6
Mid Sussex
Annual sunshine:
1084 kWh/kW
Annual net benefit (5 kW):
£836
BN7
Lewes
Annual sunshine:
1126 kWh/kW
Annual net benefit (5 kW):
£868
BN8
Lewes
Annual sunshine:
1067 kWh/kW
Annual net benefit (5 kW):
£822
BN88
Brighton and Hove
Annual sunshine:
1120 kWh/kW
Annual net benefit (5 kW):
£863
BN9
Lewes
Annual sunshine:
1138 kWh/kW
Annual net benefit (5 kW):
£877
BN95
Adur
Annual sunshine:
1112 kWh/kW
Annual net benefit (5 kW):
£857
BN99
Adur
Annual sunshine:
1119 kWh/kW
Annual net benefit (5 kW):
£862
BR2
Bromley
Annual sunshine:
999 kWh/kW
Annual net benefit (5 kW):
£770
BR4
Bromley
Annual sunshine:
1000 kWh/kW
Annual net benefit (5 kW):
£771
BR5
Bromley
Annual sunshine:
1011 kWh/kW
Annual net benefit (5 kW):
£779
BR6
Bromley
Annual sunshine:
1010 kWh/kW
Annual net benefit (5 kW):
£779
BR8
Sevenoaks
Annual sunshine:
1010 kWh/kW
Annual net benefit (5 kW):
£779
CR0
Croydon
Annual sunshine:
996 kWh/kW
Annual net benefit (5 kW):
£768
CR2
Croydon
Annual sunshine:
990 kWh/kW
Annual net benefit (5 kW):
£763
CR3
Tandridge
Annual sunshine:
986 kWh/kW
Annual net benefit (5 kW):
£760
CR44
Sutton
Annual sunshine:
990 kWh/kW
Annual net benefit (5 kW):
£763
CR5
Croydon
Annual sunshine:
983 kWh/kW
Annual net benefit (5 kW):
£758
CR6
Tandridge
Annual sunshine:
998 kWh/kW
Annual net benefit (5 kW):
£769
CR7
Croydon
Annual sunshine:
990 kWh/kW
Annual net benefit (5 kW):
£763
CR8
Croydon
Annual sunshine:
971 kWh/kW
Annual net benefit (5 kW):
£748
CR9
Croydon
Annual sunshine:
996 kWh/kW
Annual net benefit (5 kW):
£768
CR90
Croydon
Annual sunshine:
990 kWh/kW
Annual net benefit (5 kW):
£763
CT1
Canterbury
Annual sunshine:
1063 kWh/kW
Annual net benefit (5 kW):
£819
CT10
Thanet
Annual sunshine:
1071 kWh/kW
Annual net benefit (5 kW):
£825
CT11
Thanet
Annual sunshine:
1078 kWh/kW
Annual net benefit (5 kW):
£831
CT12
Thanet
Annual sunshine:
1094 kWh/kW
Annual net benefit (5 kW):
£843
CT13
Dover
Annual sunshine:
1100 kWh/kW
Annual net benefit (5 kW):
£847
CT14
Dover
Annual sunshine:
1086 kWh/kW
Annual net benefit (5 kW):
£837
CT15
Dover
Annual sunshine:
1110 kWh/kW
Annual net benefit (5 kW):
£855
CT16
Dover
Annual sunshine:
1089 kWh/kW
Annual net benefit (5 kW):
£839
CT17
Dover
Annual sunshine:
1089 kWh/kW
Annual net benefit (5 kW):
£839
CT18
Folkestone and Hythe
Annual sunshine:
1088 kWh/kW
Annual net benefit (5 kW):
£839
CT19
Folkestone and Hythe
Annual sunshine:
1111 kWh/kW
Annual net benefit (5 kW):
£856
CT2
Canterbury
Annual sunshine:
1087 kWh/kW
Annual net benefit (5 kW):
£838
CT20
Folkestone and Hythe
Annual sunshine:
1111 kWh/kW
Annual net benefit (5 kW):
£856
CT21
Folkestone and Hythe
Annual sunshine:
1090 kWh/kW
Annual net benefit (5 kW):
£840
CT3
Dover
Annual sunshine:
1106 kWh/kW
Annual net benefit (5 kW):
£852
CT4
Canterbury
Annual sunshine:
1087 kWh/kW
Annual net benefit (5 kW):
£837
CT5
Canterbury
Annual sunshine:
1047 kWh/kW
Annual net benefit (5 kW):
£807
CT50
Folkestone and Hythe
Annual sunshine:
1111 kWh/kW
Annual net benefit (5 kW):
£856
CT6
Canterbury
Annual sunshine:
1069 kWh/kW
Annual net benefit (5 kW):
£824
CT7
Thanet
Annual sunshine:
1091 kWh/kW
Annual net benefit (5 kW):
£841
CT8
Thanet
Annual sunshine:
1092 kWh/kW
Annual net benefit (5 kW):
£841
CT9
Thanet
Annual sunshine:
1086 kWh/kW
Annual net benefit (5 kW):
£837
DA10
Dartford
Annual sunshine:
1027 kWh/kW
Annual net benefit (5 kW):
£792
DA11
Gravesham
Annual sunshine:
1028 kWh/kW
Annual net benefit (5 kW):
£792
DA12
Gravesham
Annual sunshine:
1028 kWh/kW
Annual net benefit (5 kW):
£792
DA13
Gravesham
Annual sunshine:
1027 kWh/kW
Annual net benefit (5 kW):
£792
DA2
Dartford
Annual sunshine:
1024 kWh/kW
Annual net benefit (5 kW):
£789
DA3
Sevenoaks
Annual sunshine:
1025 kWh/kW
Annual net benefit (5 kW):
£790
DA4
Sevenoaks
Annual sunshine:
1015 kWh/kW
Annual net benefit (5 kW):
£782
DA9
Dartford
Annual sunshine:
1025 kWh/kW
Annual net benefit (5 kW):
£790
GU1
Guildford
Annual sunshine:
997 kWh/kW
Annual net benefit (5 kW):
£768
GU2
Guildford
Annual sunshine:
994 kWh/kW
Annual net benefit (5 kW):
£766
GU21
Woking
Annual sunshine:
996 kWh/kW
Annual net benefit (5 kW):
£767
GU22
Woking
Annual sunshine:
996 kWh/kW
Annual net benefit (5 kW):
£767
GU23
Guildford
Annual sunshine:
997 kWh/kW
Annual net benefit (5 kW):
£768
GU3
Guildford
Annual sunshine:
999 kWh/kW
Annual net benefit (5 kW):
£770
GU4
Guildford
Annual sunshine:
987 kWh/kW
Annual net benefit (5 kW):
£761
GU5
Guildford
Annual sunshine:
997 kWh/kW
Annual net benefit (5 kW):
£768
GU6
Waverley
Annual sunshine:
1021 kWh/kW
Annual net benefit (5 kW):
£787
KT1
Kingston upon Thames
Annual sunshine:
997 kWh/kW
Annual net benefit (5 kW):
£769
KT10
Elmbridge
Annual sunshine:
998 kWh/kW
Annual net benefit (5 kW):
£769
KT11
Elmbridge
Annual sunshine:
997 kWh/kW
Annual net benefit (5 kW):
£769
KT12
Elmbridge
Annual sunshine:
996 kWh/kW
Annual net benefit (5 kW):
£768
KT13
Elmbridge
Annual sunshine:
996 kWh/kW
Annual net benefit (5 kW):
£768
KT14
Woking
Annual sunshine:
995 kWh/kW
Annual net benefit (5 kW):
£767
KT15
Runnymede
Annual sunshine:
997 kWh/kW
Annual net benefit (5 kW):
£768
KT16
Runnymede
Annual sunshine:
997 kWh/kW
Annual net benefit (5 kW):
£768
KT17
Epsom and Ewell
Annual sunshine:
990 kWh/kW
Annual net benefit (5 kW):
£763
KT18
Epsom and Ewell
Annual sunshine:
990 kWh/kW
Annual net benefit (5 kW):
£763
KT19
Epsom and Ewell
Annual sunshine:
996 kWh/kW
Annual net benefit (5 kW):
£768
KT2
Kingston upon Thames
Annual sunshine:
997 kWh/kW
Annual net benefit (5 kW):
£769
KT20
Reigate and Banstead
Annual sunshine:
998 kWh/kW
Annual net benefit (5 kW):
£769
KT21
Mole Valley
Annual sunshine:
989 kWh/kW
Annual net benefit (5 kW):
£762
KT22
Mole Valley
Annual sunshine:
989 kWh/kW
Annual net benefit (5 kW):
£762
KT23
Mole Valley
Annual sunshine:
1002 kWh/kW
Annual net benefit (5 kW):
£772
KT24
Guildford
Annual sunshine:
997 kWh/kW
Annual net benefit (5 kW):
£768
KT4
Sutton
Annual sunshine:
998 kWh/kW
Annual net benefit (5 kW):
£769
KT5
Kingston upon Thames
Annual sunshine:
997 kWh/kW
Annual net benefit (5 kW):
£768
KT6
Kingston upon Thames
Annual sunshine:
998 kWh/kW
Annual net benefit (5 kW):
£769
KT7
Elmbridge
Annual sunshine:
998 kWh/kW
Annual net benefit (5 kW):
£769
KT8
Elmbridge
Annual sunshine:
998 kWh/kW
Annual net benefit (5 kW):
£769
KT9
Kingston upon Thames
Annual sunshine:
998 kWh/kW
Annual net benefit (5 kW):
£769
ME1
Medway
Annual sunshine:
1018 kWh/kW
Annual net benefit (5 kW):
£784
ME10
Swale
Annual sunshine:
1048 kWh/kW
Annual net benefit (5 kW):
£808
ME11
Swale
Annual sunshine:
1055 kWh/kW
Annual net benefit (5 kW):
£813
ME12
Swale
Annual sunshine:
1059 kWh/kW
Annual net benefit (5 kW):
£816
ME13
Swale
Annual sunshine:
1044 kWh/kW
Annual net benefit (5 kW):
£804
ME14
Maidstone
Annual sunshine:
1024 kWh/kW
Annual net benefit (5 kW):
£789
ME15
Maidstone
Annual sunshine:
1044 kWh/kW
Annual net benefit (5 kW):
£805
ME16
Maidstone
Annual sunshine:
1027 kWh/kW
Annual net benefit (5 kW):
£791
ME17
Maidstone
Annual sunshine:
1034 kWh/kW
Annual net benefit (5 kW):
£797
ME18
Maidstone
Annual sunshine:
1032 kWh/kW
Annual net benefit (5 kW):
£795
ME19
Tonbridge and Malling
Annual sunshine:
1032 kWh/kW
Annual net benefit (5 kW):
£795
ME2
Medway
Annual sunshine:
1016 kWh/kW
Annual net benefit (5 kW):
£783
ME20
Tonbridge and Malling
Annual sunshine:
1030 kWh/kW
Annual net benefit (5 kW):
£794
ME3
Medway
Annual sunshine:
1058 kWh/kW
Annual net benefit (5 kW):
£815
ME4
Medway
Annual sunshine:
1040 kWh/kW
Annual net benefit (5 kW):
£802
ME5
Medway
Annual sunshine:
1017 kWh/kW
Annual net benefit (5 kW):
£784
ME6
Tonbridge and Malling
Annual sunshine:
1023 kWh/kW
Annual net benefit (5 kW):
£788
ME7
Medway
Annual sunshine:
1018 kWh/kW
Annual net benefit (5 kW):
£785
ME8
Medway
Annual sunshine:
1034 kWh/kW
Annual net benefit (5 kW):
£797
ME9
Swale
Annual sunshine:
1048 kWh/kW
Annual net benefit (5 kW):
£808
ME99
Maidstone
Annual sunshine:
1017 kWh/kW
Annual net benefit (5 kW):
£784
RH1
Reigate and Banstead
Annual sunshine:
1008 kWh/kW
Annual net benefit (5 kW):
£777
RH10
Crawley
Annual sunshine:
1005 kWh/kW
Annual net benefit (5 kW):
£775
RH11
Crawley
Annual sunshine:
1008 kWh/kW
Annual net benefit (5 kW):
£777
RH12
Horsham
Annual sunshine:
1006 kWh/kW
Annual net benefit (5 kW):
£775
RH13
Horsham
Annual sunshine:
1024 kWh/kW
Annual net benefit (5 kW):
£789
RH15
Mid Sussex
Annual sunshine:
1060 kWh/kW
Annual net benefit (5 kW):
£817
RH16
Mid Sussex
Annual sunshine:
1029 kWh/kW
Annual net benefit (5 kW):
£793
RH17
Mid Sussex
Annual sunshine:
1033 kWh/kW
Annual net benefit (5 kW):
£796
RH18
Wealden
Annual sunshine:
1019 kWh/kW
Annual net benefit (5 kW):
£785
RH19
Mid Sussex
Annual sunshine:
1007 kWh/kW
Annual net benefit (5 kW):
£776
RH2
Reigate and Banstead
Annual sunshine:
1012 kWh/kW
Annual net benefit (5 kW):
£780
RH20
Horsham
Annual sunshine:
1052 kWh/kW
Annual net benefit (5 kW):
£811
RH3
Mole Valley
Annual sunshine:
1015 kWh/kW
Annual net benefit (5 kW):
£782
RH4
Mole Valley
Annual sunshine:
1012 kWh/kW
Annual net benefit (5 kW):
£780
RH5
Mole Valley
Annual sunshine:
1012 kWh/kW
Annual net benefit (5 kW):
£780
RH6
Reigate and Banstead
Annual sunshine:
1005 kWh/kW
Annual net benefit (5 kW):
£775
RH7
Tandridge
Annual sunshine:
1014 kWh/kW
Annual net benefit (5 kW):
£781
RH77
Crawley
Annual sunshine:
1007 kWh/kW
Annual net benefit (5 kW):
£776
RH8
Tandridge
Annual sunshine:
1006 kWh/kW
Annual net benefit (5 kW):
£775
RH9
Tandridge
Annual sunshine:
1003 kWh/kW
Annual net benefit (5 kW):
£773
SE19
Croydon
Annual sunshine:
996 kWh/kW
Annual net benefit (5 kW):
£768
SE25
Croydon
Annual sunshine:
996 kWh/kW
Annual net benefit (5 kW):
£768
SM1
Sutton
Annual sunshine:
995 kWh/kW
Annual net benefit (5 kW):
£767
SM2
Sutton
Annual sunshine:
995 kWh/kW
Annual net benefit (5 kW):
£767
SM3
Sutton
Annual sunshine:
995 kWh/kW
Annual net benefit (5 kW):
£767
SM5
Sutton
Annual sunshine:
995 kWh/kW
Annual net benefit (5 kW):
£767
SM6
Sutton
Annual sunshine:
995 kWh/kW
Annual net benefit (5 kW):
£767
SM7
Reigate and Banstead
Annual sunshine:
991 kWh/kW
Annual net benefit (5 kW):
£764
TN1
Tunbridge Wells
Annual sunshine:
1029 kWh/kW
Annual net benefit (5 kW):
£793
TN10
Tonbridge and Malling
Annual sunshine:
1034 kWh/kW
Annual net benefit (5 kW):
£797
TN11
Tonbridge and Malling
Annual sunshine:
1042 kWh/kW
Annual net benefit (5 kW):
£803
TN12
Tunbridge Wells
Annual sunshine:
1056 kWh/kW
Annual net benefit (5 kW):
£814
TN13
Sevenoaks
Annual sunshine:
1015 kWh/kW
Annual net benefit (5 kW):
£782
TN14
Sevenoaks
Annual sunshine:
1023 kWh/kW
Annual net benefit (5 kW):
£789
TN15
Sevenoaks
Annual sunshine:
1023 kWh/kW
Annual net benefit (5 kW):
£789
TN16
Bromley
Annual sunshine:
1009 kWh/kW
Annual net benefit (5 kW):
£777
TN17
Tunbridge Wells
Annual sunshine:
1046 kWh/kW
Annual net benefit (5 kW):
£806
TN18
Tunbridge Wells
Annual sunshine:
1076 kWh/kW
Annual net benefit (5 kW):
£829
TN19
Rother
Annual sunshine:
1052 kWh/kW
Annual net benefit (5 kW):
£811
TN2
Tunbridge Wells
Annual sunshine:
1029 kWh/kW
Annual net benefit (5 kW):
£793
TN20
Wealden
Annual sunshine:
1041 kWh/kW
Annual net benefit (5 kW):
£802
TN21
Wealden
Annual sunshine:
1049 kWh/kW
Annual net benefit (5 kW):
£808
TN22
Wealden
Annual sunshine:
1055 kWh/kW
Annual net benefit (5 kW):
£813
TN23
Ashford
Annual sunshine:
1088 kWh/kW
Annual net benefit (5 kW):
£838
TN24
Ashford
Annual sunshine:
1093 kWh/kW
Annual net benefit (5 kW):
£843
TN25
Ashford
Annual sunshine:
1059 kWh/kW
Annual net benefit (5 kW):
£816
TN26
Ashford
Annual sunshine:
1088 kWh/kW
Annual net benefit (5 kW):
£838
TN27
Ashford
Annual sunshine:
1042 kWh/kW
Annual net benefit (5 kW):
£803
TN28
Folkestone and Hythe
Annual sunshine:
1139 kWh/kW
Annual net benefit (5 kW):
£877
TN29
Folkestone and Hythe
Annual sunshine:
1123 kWh/kW
Annual net benefit (5 kW):
£865
TN3
Tunbridge Wells
Annual sunshine:
1023 kWh/kW
Annual net benefit (5 kW):
£789
TN30
Ashford
Annual sunshine:
1094 kWh/kW
Annual net benefit (5 kW):
£843
TN31
Rother
Annual sunshine:
1104 kWh/kW
Annual net benefit (5 kW):
£851
TN32
Rother
Annual sunshine:
1073 kWh/kW
Annual net benefit (5 kW):
£827
TN33
Rother
Annual sunshine:
1093 kWh/kW
Annual net benefit (5 kW):
£842
TN34
Hastings
Annual sunshine:
1125 kWh/kW
Annual net benefit (5 kW):
£867
TN35
Hastings
Annual sunshine:
1124 kWh/kW
Annual net benefit (5 kW):
£866
TN36
Rother
Annual sunshine:
1103 kWh/kW
Annual net benefit (5 kW):
£850
TN37
Hastings
Annual sunshine:
1125 kWh/kW
Annual net benefit (5 kW):
£867
TN38
Hastings
Annual sunshine:
1124 kWh/kW
Annual net benefit (5 kW):
£866
TN39
Rother
Annual sunshine:
1116 kWh/kW
Annual net benefit (5 kW):
£860
TN4
Tunbridge Wells
Annual sunshine:
1028 kWh/kW
Annual net benefit (5 kW):
£792
TN40
Rother
Annual sunshine:
1115 kWh/kW
Annual net benefit (5 kW):
£859
TN5
Wealden
Annual sunshine:
1045 kWh/kW
Annual net benefit (5 kW):
£805
TN6
Wealden
Annual sunshine:
1026 kWh/kW
Annual net benefit (5 kW):
£791
TN7
Wealden
Annual sunshine:
1019 kWh/kW
Annual net benefit (5 kW):
£785
TN8
Sevenoaks
Annual sunshine:
1024 kWh/kW
Annual net benefit (5 kW):
£789
TN9
Tonbridge and Malling
Annual sunshine:
1028 kWh/kW
Annual net benefit (5 kW):
£792
TW1
Richmond upon Thames
Annual sunshine:
991 kWh/kW
Annual net benefit (5 kW):
£764
TW10
Richmond upon Thames
Annual sunshine:
995 kWh/kW
Annual net benefit (5 kW):
£766
TW11
Richmond upon Thames
Annual sunshine:
998 kWh/kW
Annual net benefit (5 kW):
£769
TW12
Richmond upon Thames
Annual sunshine:
1000 kWh/kW
Annual net benefit (5 kW):
£771
TW17
Spelthorne
Annual sunshine:
997 kWh/kW
Annual net benefit (5 kW):
£768
TW2
Richmond upon Thames
Annual sunshine:
998 kWh/kW
Annual net benefit (5 kW):
£769
TW9
Richmond upon Thames
Annual sunshine:
991 kWh/kW
Annual net benefit (5 kW):
£764
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