40 places · sun position · panel angle
Solar data for Norway
Across the 40 places in Norway the best fixed tilt for solar panels runs from 42° in Bergen to 48° in Tromsø, and flat ground gets 1.9 to 2.8 peak sun hours a day. Every number is computed for each place.
Solar power in Norway at a glance
Averages over 40 places with climate data, for a fixed array facing south.
- 1.95–2.11
- 2.11–2.28
- 2.28–2.45
- 2.45–2.61
- 2.61–2.78
Peak sun hours a day on flat ground. Each dot is one place.
The sunniest place in Norway is Grimstad (Agder) with 2.78 peak sun hours a day on flat ground; the least sunny are Tromsø and one other place with 1.95. A 1 kWp array at its best angle makes from 772 kWh a year in Tromsø to 1,073 kWh in Grimstad — 967 kWh on average.
The best year-round tilt runs from 42° in Bergen to 48° in Tromsø. Off-grid systems are sized for the darkest month and do better steeper, at 78° on average: at 70° that month brings 0.00 kWh per kWp a day in Tromsø and 0.72 kWh in Kongsberg.
Size an off-grid system or open any place below for its sun path, monthly table and tilt curve.
Sunniest places in Norway
Ranked by peak sun hours on flat ground: the yearly average of a day's sunshine energy (NASA POWER climatology). Output: 1 kWp at its best year-round angle.
| Rank | Place | Region | Sun hours/day | kWh per kWp a year | Best tilt |
|---|---|---|---|---|---|
| 1 | Grimstad | Agder | 2.78 | 1,073 | 43° |
| 2 | Arendal | Agder | 2.77 | 1,070 | 43° |
| 3 | Halden | Østfold | 2.73 | 1,068 | 45° |
| 3 | Kristiansand | Agder | 2.73 | 1,044 | 43° |
| 5 | Larvik | Vestfold | 2.71 | 1,065 | 45° |
| 5 | Sandefjord | Vestfold | 2.71 | 1,065 | 45° |
| 5 | Fredrikstad | Østfold | 2.71 | 1,064 | 45° |
| 8 | Tønsberg | Vestfold | 2.70 | 1,062 | 45° |
| 8 | Sarpsborg | Østfold | 2.70 | 1,062 | 45° |
| 10 | Porsgrunn | Telemark | 2.68 | 1,059 | 45° |
Least sunny places in Norway
| Rank | Place | Region | Sun hours/day | kWh per kWp a year | Best tilt |
|---|---|---|---|---|---|
| 36 | Bodø | Nordland | 2.06 | 805 | 46° |
| 37 | Alta | Finnmark | 2.02 | 805 | 48° |
| 38 | Harstad | Troms | 1.98 | 776 | 47° |
| 39 | Tromsdalen | Troms | 1.95 | 772 | 48° |
| 39 | Tromsø | Troms | 1.95 | 772 | 48° |
Solar by region in Norway
Averages of the places in each region, sunniest first. Darkest month: what 1 kWp of off-grid panels at 70° makes a day in the worst month of the year.
| Region | Places | Sun hours/day | kWh per kWp a year | Best tilt | Darkest month at 70° | Sunniest place |
|---|---|---|---|---|---|---|
| Agder | 3 | 2.76 | 1,062 | 43° | 0.59 kWh | Grimstad |
| Østfold | 4 | 2.70 | 1,063 | 45° | 0.63 kWh | Halden |
| Vestfold | 4 | 2.70 | 1,063 | 45° | 0.64 kWh | Larvik |
| Telemark | 2 | 2.68 | 1,058 | 45° | 0.68 kWh | Porsgrunn |
| Akershus | 2 | 2.62 | 1,035 | 46° | 0.62 kWh | Asker |
| Buskerud | 2 | 2.62 | 1,046 | 46° | 0.69 kWh | Drammen |
| Oslo | 1 | 2.62 | 1,035 | 46° | 0.62 kWh | Oslo |
| Rogaland | 5 | 2.57 | 978 | 42° | 0.43 kWh | Time |
| Innlandet | 3 | 2.54 | 1,007 | 46° | 0.50 kWh | Gjøvik |
| Vestland | 2 | 2.39 | 899 | 42° | 0.27 kWh | Nesttun |
| Trøndelag | 3 | 2.28 | 888 | 46° | 0.15 kWh | Trondheim |
| Møre og Romsdal | 3 | 2.25 | 846 | 43° | 0.07 kWh | Kristiansund |
| Nordland | 2 | 2.09 | 817 | 46° | 0.00 kWh | Mo i Rana |
| Finnmark | 1 | 2.02 | 805 | 48° | 0.00 kWh | Alta |
| Troms | 3 | 1.96 | 773 | 48° | 0.00 kWh | Harstad |
Largest places in Norway at a glance
| Place | Latitude | Best tilt | Off-grid tilt | Sun hours/day (flat) |
|---|---|---|---|---|
| Oslo | 59.9° N | 46° | 84° | 2.62 |
| Bergen | 60.4° N | 42° | 75° | 2.39 |
| Trondheim | 63.4° N | 45° | 84° | 2.29 |
| Stavanger | 59.0° N | 43° | 77° | 2.56 |
| Kristiansand | 58.1° N | 43° | 77° | 2.73 |
| Drammen | 59.7° N | 46° | 84° | 2.62 |
| Lillestrøm | 60.0° N | 45° | 84° | 2.61 |
| Sandnes | 58.9° N | 42° | 77° | 2.58 |
| Fredrikstad | 59.2° N | 45° | 81° | 2.71 |
| Sandefjord | 59.1° N | 45° | 81° | 2.71 |
| Asker | 59.8° N | 46° | 84° | 2.62 |
| Sarpsborg | 59.3° N | 45° | 81° | 2.70 |
| Tønsberg | 59.3° N | 45° | 81° | 2.70 |
| Ålesund | 62.5° N | 42° | 59° | 2.23 |
| Skien | 59.2° N | 45° | 84° | 2.67 |
| Moss | 59.4° N | 45° | 84° | 2.67 |
| Tromsø | 69.6° N | 48° | 87° | 1.95 |
| Haugesund | 59.4° N | 42° | 77° | 2.54 |
| Nesttun | 60.3° N | 42° | 75° | 2.40 |
| Porsgrunn | 59.1° N | 45° | 81° | 2.68 |
Daylight and clock time in Norway
In Alta (70.0° N), the northernmost place, the longest day of the year lasts 24 h (midnight sun) and the shortest 0 h (polar night); in Kristiansand (58.1° N), the southernmost, 18 h 14 min and 6 h 25 min. The clocks change twice a year: forward on Sun 29 Mar, back on Sun 25 Oct (Europe/Oslo).
| Time zone | Places | UTC offset | Clocks change in 2026 |
|---|---|---|---|
| Europe/Oslo | 40 | UTC+1, in summer UTC+2 | Forward on Sun 29 Mar, back on Sun 25 Oct |