What do solar panels cost in Karlstad?
The price of solar panels in Karlstad after the deduction: what you pay. More panels cost less per kW.
About 51,470 kr of the price (43,981 kr after the deduction) is the same for 10 and 30 panels: installation, inverter, electrical work. The step from 20 to 30 panels costs 43,982 kr and saves another 3,099 kr a year.
-
10 panels (4.2 kW), about 30 m²
- To pay
- 87,963 kr
- Price incl. VAT
- 102,941 kr
- Saves/yr · paid back in
- 5,035 kr · 17.5 years
-
20 panels (8.4 kW), about 55 m²
- To pay
- 131,945 kr
- Price incl. VAT
- 154,412 kr
- Saves/yr · paid back in
- 8,712 kr · 15.1 years
-
30 panels (12.6 kW), about 80 m²
- To pay
- 175,927 kr
- Price incl. VAT
- 205,883 kr
- Saves/yr · paid back in
- 11,811 kr · 14.9 years
With a 10 kWh battery: 47,331–62,308 kr more to pay, 3,082–3,694 kr more a year.
Show the rows with a battery
-
10 panels (4.2 kW) + 10 kWh battery, about 30 m²
- To pay
- 135,294 kr
- Price incl. VAT
- 185,294 kr
- Saves/yr · paid back in
- 8,117 kr · 16.7 years
-
20 panels (8.4 kW) + 10 kWh battery, about 55 m²
- To pay
- 186,765 kr
- Price incl. VAT
- 236,765 kr
- Saves/yr · paid back in
- 12,294 kr · 15.2 years
-
30 panels (12.6 kW) + 10 kWh battery, about 80 m²
- To pay
- 238,235 kr
- Price incl. VAT
- 288,235 kr
- Saves/yr · paid back in
- 15,505 kr · 15.4 years
* Green tech: 15% for panels, 50% for a battery, of 97% of the price, at most 50,000 kr per person and year. Example prices from Numsolar's price list for installers, 2026-11-09. Your installer's price will differ: ask for several quotes. Savings: south roof, 20,000 kWh a year, someone home in the day.
What fits your house?
Pick roof, roof area, power use and car. We give one advice and three options.
Car: at home in the day it charges with solar, else from 17:00.
Our advice: fill the roof. 30 panels (12.6 kW) pays back in 14.9 years and gives 119,348 kr net over 25 years.
-
1 · Fill the roof
30 panels (12.6 kW)
Fair dealTo pay after the deduction
- Saves a year
- 11,811 kr
- Payback
- 14.9 years
- Price incl. VAT
- 205,883 kr
- Net over 25 years
- 119,348 kr
- Roof area
- about 80 m²
49% of the solar power is used at home.
-
2 · Mid-size
20 panels (8.4 kW)
Fair dealTo pay after the deduction
- Saves a year
- 8,712 kr
- Payback
- 15.1 years
- Price incl. VAT
- 154,412 kr
- Net over 25 years
- 85,855 kr
- Roof area
- about 55 m²
43,982 kr cheaper than the first pick, with a payback of 15.1 years.
-
3 · With a battery
30 panels (12.6 kW) + 10 kWh battery
The battery does not pay offTo pay after the deduction
- Saves a year
- 15,505 kr
- Payback
- 15.4 years
- Price incl. VAT
- 288,235 kr
- Net over 25 years
- 93,980 kr
- Roof area
- about 80 m²
The battery saves 3,694 kr a year but costs 62,308 kr more. It lowers the 25-year net by 25,368 kr. Choose it for backup power, not for your wallet.
Good deal: paid back within 14 years · Fair: within 17 · Weak: longer · Does not pay off: a loss over 25 years · Battery: paid back within its 10-year warranty? · Example prices 2026-11-09.
Compare with north and south
The same house in Luleå and Malmö: 895 and 1,035 kWh per kW against Karlstad’s 948.
| Figure | Luleå SE1 | Karlstad SE3 | Malmö SE4 |
|---|---|---|---|
| kWh per kW, south | 895 | 948 | 1,035 |
| Saves a year, 20 panels | 5,051 kr | 8,712 kr | 12,129 kr |
| Payback, 20 panels | 26.1 years | 15.1 years | 10.9 years |
| Battery paid back in | 49.1 years | 15.3 years | 11.6 years |
The same house in each city: 20 panels facing south, 20,000 kWh a year, someone home in the day, no battery. The battery: 10 kWh, the warranty is 10 years.
Solar panels in Luleå → Solar panels in Malmö → All cities →
Does the roof direction matter?
Yes, more than anything. South gives 3,058 kWh more a year than north with 20 panels.
South-east and south-west are 5% below south, east and west 18%, north 38%. With both east and west, use both; with only north, try the garage.
| Roof facing | kWh per kW | Saves/yr* | Payback* |
|---|---|---|---|
| South | 948 100% | 8,712 kr | 15.1 years |
| South-east | 900 95% | 8,304 kr | 15.9 years |
| South-west | 900 95% | 8,387 kr | 15.7 years |
| East | 778 82% | 7,333 kr | 18.0 years |
| West | 778 82% | 7,471 kr | 17.7 years |
| North | 584 62% | 6,000 kr | 22.0 years |
* 20 panels without a battery, 20,000 kWh a year, at home in the day. 27° roof.
Does a battery pay off?
Not for your wallet. For backup power and more of your own solar: yes.
- 10 kWh on the reference house (20 panels): saves 3,582 kr more a year, costs 54,820 kr more. Paid back in 15.3 years; the warranty is 10 years.
- The deduction is 50% for a battery, but the panels use most of the 50,000 kr cap per person: one owner gets 27,533 kr (33%) for the battery. Two owners: more.
- The battery earns most by storing cheap night power for expensive hours; that is how our calculator runs it. The flows per season are under Seasons.
- Backup power needs an inverter with a backup function. For the fastest payback: wait with the battery.
What makes the biggest difference to the savings?
Five choices, ranked in kronor.
| Choice | Worth | How |
|---|---|---|
| Right roof face | +3,058 kWh/yr | South instead of north, 20 panels. |
| Fill the roof | +81,436 kr net over 25 years | 30 panels instead of 10. A large part of the price is fixed. |
| Power at midday | +996 kr/yr | Someone home 8–17 versus all away. Laundry, dishes and hot water in the daytime. |
| Charge the car in the daytime | +1,120 kr/yr | The car takes 905 kWh of solar a year. Charging from 17:00 gives -43 kr. |
| Battery | +3,582 kr/yr, −54,820 kr | Last in line. See Does a battery pay off? |
We count 30 km of driving a day. The charger (often 10,000–15,000 kr, 50% green tech) is not included: you need it with or without solar. If everyone is away 8–17, 55% of the solar power is sold at the spot price.
How much do solar panels give in winter?
Winter gives 6% of the year's solar. Spring and autumn bring 52% of the savings.
Summer brings 43% of the solar power and the reference house sells 45% of it at the spot price (0.79 kr on average). In winter the panels cover 6% of the house's power; every kWh you do not buy is worth 1.60 kr.
The reference house with a 10 kWh battery, kWh per season.
Solar 464 kWh · sold 0 kWh · bought 7,263 kWh · saved 1,272 kr
The battery stored 0 kWh of solar and 966 kWh of cheap grid power, and gave 870 kWh back when power was expensive.
Solar 4,062 kWh · sold 805 kWh · bought 6,401 kWh · saved 6,025 kr
The battery stored 575 kWh of solar and 1,368 kWh of cheap grid power, and gave 1,743 kWh back when power was expensive.
Solar 3,440 kWh · sold 735 kWh · bought 392 kWh · saved 4,162 kr
The battery stored 828 kWh of solar and 37 kWh of cheap grid power, and gave 784 kWh back when power was expensive.
What is special about Karlstad?
Price zone SE3, Karlstads Elnät's grid, 59° north, 2.5 kN/m² of snow.
Karlstad lies on Lake Vänern at 59.4° N, in price zone SE3. Karlstads Elnät charges only 10.38 öre per kWh incl. VAT, but has a peak charge of 48.35 kr per kW a month on the month's highest hour. A November–March high-load fee is not in the calculation. The noon sun stands 54.1° high at the June solstice and 7.2° at the December solstice.
- Spot price SE3
- 0.79 kr/kWh Average over the last year excl. VAT. SE1: 0.45 kr, SE4: 1.04 kr. A higher spot price makes your own solar worth more.
- Grid: Karlstads Elnät
- 0.08 kr/kWh + 155 kr/month Transfer fee excl. VAT, 20 A fuse. You save the variable fee on every kWh of your own. Source: Karlstads Elnät, Elnätsavgifter 2026, från 1 januari 2026 (läst 2026-11-09).
- Sun height
- 54° / 7° At midday at midsummer and midwinter at 59.4° north. The day is 18.6 hours in June, 6.1 in December.
- Snow load
- 2.5 kN/m² Boverket's EKS. The installer sizes the fixings for it.
Benefits of solar in Karlstad
- The spot price was 0.79 kr/kWh in SE3 on average over the last year, the second highest of Sweden's four price zones (SE1 0.45 kr, SE2 0.46 kr, SE4 1.04 kr). The higher the spot price, the more your own solar power is worth. Source: Nord Pool, 2025-11-09 to 2026-11-09
- Karlstads Elnät charges 0.10 kr/kWh incl. VAT for transfer. You save that fee on every kWh of solar power you use yourself. Also a peak charge of 48.35 kr per kW a month, incl. VAT. Source: Karlstads Elnät, Elnätsavgifter 2026, från 1 januari 2026 (läst 2026-11-09)
- 30 panels (12.6 kW) make 11,948 kWh of solar power a year. The same amount of grid power causes about 705 kg CO2e a year; your own solar power avoids it (Nordic power mix, 59 g CO2e/kWh, an average for 2021–2023). Source: IVL Swedish Environmental Research Institute, report B11147, 2026
- Karlstad's energy and climate advisers give impartial advice on topics such as solar to private persons, associations and small companies. Source: Energi- och klimatrådgivning | Karlstads kommun, read 2026-11-09
- The municipality says that solar panels need a building permit if the house is in or next to a total-defence national-interest area, or is culturally valuable. Source: Solceller, solpaneler och solfångare | Karlstads kommun, read 2026-11-09
Nearby cities: Örebro (97 km) · Linköping (162 km) · Eskilstuna (170 km)
How solid are the numbers?
The same engine as the calculator, example prices, a house without shade.
- Engine: the same as our calculator. Sun position every 15 minutes; power, battery and car hour by hour, one year.
- House: made up, central Karlstad, 27° roof, no shade, 420 W panels.
- Weather: PVGIS for the place. Power price: SE3 spot 2025-11-09 to 2026-11-09 + markup 0.05 kr + Karlstads Elnät 0.08 kr + energy tax 0.36 kr (Swedish Tax Agency 2026) + 25% VAT = 1.60 kr/kWh.
- Price: Numsolar's example price list for installers, incl. VAT, after the green tech deduction for one owner. No charger. Your installer's price will differ.
- Payback = price ÷ first-year savings. Net over 25 years = 25 years of no-battery savings + 10 years of battery savings − price.
- Not counted: panel ageing (about 0.4%/yr), an inverter swap after 12–15 years, a changed power price. They cut the net by about 15%; the ranking holds.
All 432 scenarios as data: JSON (CC BY 4.0)
The data
The data behind every number on the page, per month or year. Click a dotted number to open it.
The price line by line
The price incl. VAT minus the green tech deduction is what you pay. The battery reaches the 50,000 kr cap for one owner.
| System | Price incl. VAT | Green tech | To pay |
|---|---|---|---|
| 10 panels (4.2 kW) | 102,941 kr | −14,978 kr | 87,963 kr |
| 20 panels (8.4 kW) | 154,412 kr | −22,467 kr | 131,945 kr |
| 30 panels (12.6 kW) | 205,883 kr | −29,956 kr | 175,927 kr |
| 10 panels (4.2 kW) + 10 kWh battery | 185,294 kr | −50,000 kr | 135,294 kr |
| 20 panels (8.4 kW) + 10 kWh battery | 236,765 kr | −50,000 kr | 186,765 kr |
| 30 panels (12.6 kW) + 10 kWh battery | 288,235 kr | −50,000 kr | 238,235 kr |
Numsolar's example price list for installers, 2026-11-09; green tech 15%/50% of 97% of the price, at most 50,000 kr per person and year.
Source: priv/data/city_solar/<city>.json · scenarios[*].price_kr, gron_teknik_kr; model.price_list · Skatteverket, grön teknik
Solar per month for each roof direction
The same 20 panels facing six ways. South wins every month; the gap is largest in spring and autumn.
| Month | South | South-east | South-west | East | West | North |
|---|---|---|---|---|---|---|
| Jan | 118 | 98 | 98 | 57 | 57 | 37 |
| Feb | 268 | 233 | 233 | 161 | 161 | 93 |
| Mar | 697 | 631 | 632 | 485 | 486 | 241 |
| Apr | 990 | 937 | 938 | 800 | 802 | 538 |
| May | 1,164 | 1,136 | 1,136 | 1,042 | 1,043 | 859 |
| Jun | 1,263 | 1,243 | 1,243 | 1,165 | 1,165 | 1,018 |
| Jul | 1,201 | 1,178 | 1,178 | 1,095 | 1,095 | 936 |
| Aug | 976 | 940 | 940 | 840 | 839 | 646 |
| Sep | 686 | 639 | 639 | 529 | 528 | 322 |
| Oct | 384 | 342 | 341 | 250 | 250 | 143 |
| Nov | 142 | 121 | 121 | 77 | 77 | 52 |
| Dec | 78 | 64 | 64 | 34 | 34 | 24 |
| Year, kWh | 7,966 | 7,564 | 7,564 | 6,535 | 6,535 | 4,908 |
20 panels (8.4 kW), 27° roof, no shade. kWh per month.
Source: priv/data/city_solar/<city>.json · scenarios[dir=*, panels=20].months[produced_kwh], produced_kwh
With and without a battery, month by month
The battery moves cheap power and your own solar to expensive hours. The gain a year is the difference below.
| Month | Without battery | With 10 kWh | Difference |
|---|---|---|---|
| Jan | 247 kr | 396 kr | 149 kr |
| Feb | 561 kr | 692 kr | 131 kr |
| Mar | 801 kr | 1,026 kr | 225 kr |
| Apr | 705 kr | 1,002 kr | 297 kr |
| May | 997 kr | 1,199 kr | 202 kr |
| Jun | 1,321 kr | 2,310 kr | 989 kr |
| Jul | 923 kr | 1,255 kr | 332 kr |
| Aug | 1,055 kr | 1,432 kr | 377 kr |
| Sep | 1,049 kr | 1,402 kr | 353 kr |
| Oct | 651 kr | 854 kr | 203 kr |
| Nov | 295 kr | 542 kr | 247 kr |
| Dec | 107 kr | 184 kr | 77 kr |
| Year | 8,712 kr | 12,294 kr | 3,582 kr |
Roof facing south, 20,000 kWh a year, someone home in the day. kWh and kr per month.
Source: priv/data/city_solar/<city>.json · scenarios[id=S-20-b0-nocar-20-home|S-20-b10-nocar-20-home].months, savings_kr
10, 20 or 30 panels
More panels save more every month, and the fixed part of the price is shared by more kW.
| System | To pay | Saves/yr | Net 25 yrs |
|---|---|---|---|
| 10 panels (4.2 kW) | 87,963 kr | 5,035 kr | 37,912 kr |
| 20 panels (8.4 kW) | 131,945 kr | 8,712 kr | 85,855 kr |
| 30 panels (12.6 kW) | 175,927 kr | 11,811 kr | 119,348 kr |
| 30 versus 10 panels | 81,436 kr |
Roof facing south, 20,000 kWh a year, someone home in the day. kWh and kr per month.
Source: priv/data/city_solar/<city>.json · scenarios[panels=10|20|30].price_kr, savings_kr, net_25_kr, months
Home in the day or away, month by month
Same roof, same yearly use; only the day pattern differs. At home, more solar is used directly.
| Month | Away 8–17 | Someone home | Difference |
|---|---|---|---|
| Jan | 247 kr | 247 kr | 0 kr |
| Feb | 552 kr | 561 kr | 9 kr |
| Mar | 615 kr | 801 kr | 186 kr |
| Apr | 595 kr | 705 kr | 110 kr |
| May | 929 kr | 997 kr | 68 kr |
| Jun | 1,263 kr | 1,321 kr | 58 kr |
| Jul | 789 kr | 923 kr | 134 kr |
| Aug | 875 kr | 1,055 kr | 180 kr |
| Sep | 853 kr | 1,049 kr | 196 kr |
| Oct | 596 kr | 651 kr | 55 kr |
| Nov | 295 kr | 295 kr | 0 kr |
| Dec | 107 kr | 107 kr | 0 kr |
| Year | 7,716 kr | 8,712 kr | 996 kr |
Roof facing south, 20,000 kWh a year, someone home in the day. kWh and kr per month.
Source: priv/data/city_solar/<city>.json · scenarios[id=S-20-b0-nocar-20-away|S-20-b0-nocar-20-home].months, savings_kr
A car charging in the day, month by month
The car takes 905 kWh of solar a year when it is home in the day. The difference in savings is solar that would otherwise be sold cheaply.
| Month | No car | Car, home in the day | Difference |
|---|---|---|---|
| Jan | 247 kr | 247 kr | 0 kr |
| Feb | 561 kr | 561 kr | 0 kr |
| Mar | 801 kr | 817 kr | 16 kr |
| Apr | 705 kr | 816 kr | 111 kr |
| May | 997 kr | 1,121 kr | 124 kr |
| Jun | 1,321 kr | 1,928 kr | 607 kr |
| Jul | 923 kr | 1,037 kr | 114 kr |
| Aug | 1,055 kr | 1,178 kr | 123 kr |
| Sep | 1,049 kr | 1,074 kr | 25 kr |
| Oct | 651 kr | 651 kr | 0 kr |
| Nov | 295 kr | 295 kr | 0 kr |
| Dec | 107 kr | 107 kr | 0 kr |
| Year | 8,712 kr | 9,832 kr | 1,120 kr |
Roof facing south, 20,000 kWh a year, someone home in the day, car 30 km a day. kWh and kr per month.
Source: priv/data/city_solar/<city>.json · scenarios[id=S-20-b0-nocar-20-home|S-20-b0-car-20-home].months, savings_kr
Solar and use per month
The house uses the most power in winter, when the sun gives the least. Summer gives a surplus that is sold.
| Month | Solar | Used | Sold | Bought | Saved |
|---|---|---|---|---|---|
| Jan | 118 | 118 | 0 | 2,483 | 247 kr |
| Feb | 268 | 268 | 0 | 1,935 | 561 kr |
| Mar | 697 | 646 | 51 | 1,158 | 801 kr |
| Apr | 990 | 456 | 534 | 347 | 705 kr |
| May | 1,164 | 418 | 745 | 184 | 997 kr |
| Jun | 1,263 | 569 | 694 | 235 | 1,321 kr |
| Jul | 1,201 | 654 | 547 | 351 | 923 kr |
| Aug | 976 | 655 | 321 | 553 | 1,055 kr |
| Sep | 686 | 636 | 50 | 975 | 1,049 kr |
| Oct | 384 | 384 | 0 | 1,632 | 651 kr |
| Nov | 142 | 142 | 0 | 2,481 | 295 kr |
| Dec | 78 | 78 | 0 | 2,748 | 107 kr |
| Year | 7,967 | 5,024 | 2,942 | 15,082 | 8,712 kr |
Roof facing south, 20,000 kWh a year, someone home in the day. kWh and kr per month.
Source: priv/data/city_solar/<city>.json · scenarios[id=S-20-b0-nocar-20-home].months, seasons
The SE3 spot price per month and hour
The spot price changes over the year and the day. Solar sold at midday often gets less than the average.
| Hour | Average kr/kWh |
|---|---|
| 00:00 | 0.67 |
| 01:00 | 0.63 |
| 02:00 | 0.60 |
| 03:00 | 0.60 |
| 04:00 | 0.61 |
| 05:00 | 0.67 |
| 06:00 | 0.82 |
| 07:00 | 0.97 |
| 08:00 | 0.99 |
| 09:00 | 0.87 |
| 10:00 | 0.76 |
| 11:00 | 0.67 |
| 12:00 | 0.62 |
| 13:00 | 0.60 |
| 14:00 | 0.61 |
| 15:00 | 0.69 |
| 16:00 | 0.82 |
| 17:00 | 0.99 |
| 18:00 | 1.09 |
| 19:00 | 1.10 |
| 20:00 | 1.03 |
| 21:00 | 0.93 |
| 22:00 | 0.82 |
| 23:00 | 0.71 |
| Year | 0.79 |
Excl. VAT, markup and grid fee. 2025-11-09 to 2026-11-09.
Source: priv/data/city_solar/<city>.json · city_facts.spot_profile, city_facts.zones · Nord Pool via electricity_spot_prices
What a bought kWh costs
Every kWh of solar you use yourself is one you do not buy at this price.
| Part | kr/kWh |
|---|---|
| Spot price, average | 0.79 |
| Retailer markup | 0.05 |
| Transfer fee, Karlstads Elnät | 0.08 |
| Energy tax | 0.36 |
| VAT 25% | 0.32 |
| Total | 1.60 |
Average over the year; the fixed monthly fee is not per kWh.
Source: priv/data/city_solar/<city>.json · model.import_price, city_facts.dso · Skatteverket (energiskatt)
Karlstad compared with Luleå and Malmö
The same house, roof and prices in each city. Only the sun, the power price, the grid and the energy tax differ.
| City | Zone | kWh/kW facing south | Saves/yr, 20 panels | Payback, 20 panels | Battery paid back in |
|---|---|---|---|---|---|
| Luleå | SE1 | 895 | 5,051 kr | 26.1 years | 49.1 years |
| Karlstad | SE3 | 948 | 8,712 kr | 15.1 years | 15.3 years |
| Malmö | SE4 | 1,035 | 12,129 kr | 10.9 years | 11.6 years |
The same house in each city: 20 panels (8.4 kW) facing south, a 27° roof, 20,000 kWh a year, someone home in the day, no car, no battery. The battery: 10 kWh on the same house; the warranty is 10 years.
Source: priv/data/city_solar/<city>.json · top3, scenarios (lulea, karlstad, malmo)
Savings per month: 10 panels (4.2 kW)
How 5,035 kr a year spreads over the year. The summer months give the most; winter little, because the sun is low.
| Month | Solar | Used | Sold | Bought | Saved |
|---|---|---|---|---|---|
| Jan | 59 | 59 | 0 | 2,542 | 123 kr |
| Feb | 134 | 134 | 0 | 2,069 | 280 kr |
| Mar | 348 | 348 | 0 | 1,455 | 419 kr |
| Apr | 495 | 384 | 111 | 418 | 462 kr |
| May | 582 | 361 | 220 | 241 | 614 kr |
| Jun | 631 | 466 | 165 | 338 | 824 kr |
| Jul | 601 | 524 | 76 | 481 | 598 kr |
| Aug | 488 | 487 | 1 | 721 | 644 kr |
| Sep | 343 | 343 | 0 | 1,268 | 544 kr |
| Oct | 192 | 192 | 0 | 1,824 | 325 kr |
| Nov | 71 | 71 | 0 | 2,552 | 148 kr |
| Dec | 39 | 39 | 0 | 2,788 | 54 kr |
| Year | 3,983 | 3,408 | 573 | 16,697 | 5,035 kr |
Roof facing south, 20,000 kWh a year, someone home in the day. kWh and kr per month.
Source: priv/data/city_solar/<city>.json · scenarios[id=S-10-b0-nocar-20-home].months, savings_kr
Payback year by year: 10 panels (4.2 kW)
The kronor saved add up year by year. Where the pile passes the price (87,963 kr) the system is paid back: year 18.
| Year | Saved in total | Net |
|---|---|---|
| 1 | 5,035 kr | -82,928 kr |
| 5 | 25,175 kr | -62,788 kr |
| 10 | 50,350 kr | -37,613 kr |
| 15 | 75,525 kr | -12,438 kr |
| 18 | 90,630 kr | 2,667 kr |
| 20 | 100,700 kr | 12,737 kr |
| 25 | 125,875 kr | 37,912 kr |
| Payback | 17.5 years | 37,912 kr |
The same savings every year, no price changes; the battery's extra savings count for 10 years. Roof facing south, 20,000 kWh a year, someone home in the day. kWh and kr per month.
Source: priv/data/city_solar/<city>.json · scenarios[id=S-10-b0-nocar-20-home].price_kr, savings_kr, battery_savings_kr, net_25_kr
Savings per month: 20 panels (8.4 kW)
How 8,712 kr a year spreads over the year. The summer months give the most; winter little, because the sun is low.
| Month | Solar | Used | Sold | Bought | Saved |
|---|---|---|---|---|---|
| Jan | 118 | 118 | 0 | 2,483 | 247 kr |
| Feb | 268 | 268 | 0 | 1,935 | 561 kr |
| Mar | 697 | 646 | 51 | 1,158 | 801 kr |
| Apr | 990 | 456 | 534 | 347 | 705 kr |
| May | 1,164 | 418 | 745 | 184 | 997 kr |
| Jun | 1,263 | 569 | 694 | 235 | 1,321 kr |
| Jul | 1,201 | 654 | 547 | 351 | 923 kr |
| Aug | 976 | 655 | 321 | 553 | 1,055 kr |
| Sep | 686 | 636 | 50 | 975 | 1,049 kr |
| Oct | 384 | 384 | 0 | 1,632 | 651 kr |
| Nov | 142 | 142 | 0 | 2,481 | 295 kr |
| Dec | 78 | 78 | 0 | 2,748 | 107 kr |
| Year | 7,967 | 5,024 | 2,942 | 15,082 | 8,712 kr |
Roof facing south, 20,000 kWh a year, someone home in the day. kWh and kr per month.
Source: priv/data/city_solar/<city>.json · scenarios[id=S-20-b0-nocar-20-home].months, savings_kr
Payback year by year: 20 panels (8.4 kW)
The kronor saved add up year by year. Where the pile passes the price (131,945 kr) the system is paid back: year 16.
| Year | Saved in total | Net |
|---|---|---|
| 1 | 8,712 kr | -123,233 kr |
| 5 | 43,560 kr | -88,385 kr |
| 10 | 87,120 kr | -44,825 kr |
| 15 | 130,680 kr | -1,265 kr |
| 16 | 139,392 kr | 7,447 kr |
| 20 | 174,240 kr | 42,295 kr |
| 25 | 217,800 kr | 85,855 kr |
| Payback | 15.1 years | 85,855 kr |
The same savings every year, no price changes; the battery's extra savings count for 10 years. Roof facing south, 20,000 kWh a year, someone home in the day. kWh and kr per month.
Source: priv/data/city_solar/<city>.json · scenarios[id=S-20-b0-nocar-20-home].price_kr, savings_kr, battery_savings_kr, net_25_kr
Savings per month: 30 panels (12.6 kW)
How 11,811 kr a year spreads over the year. The summer months give the most; winter little, because the sun is low.
| Month | Solar | Used | Sold | Bought | Saved |
|---|---|---|---|---|---|
| Jan | 177 | 177 | 0 | 2,424 | 370 kr |
| Feb | 401 | 401 | 0 | 1,802 | 841 kr |
| Mar | 1,045 | 743 | 302 | 1,061 | 1,040 kr |
| Apr | 1,484 | 488 | 996 | 314 | 918 kr |
| May | 1,745 | 440 | 1,305 | 162 | 1,349 kr |
| Jun | 1,894 | 606 | 1,288 | 197 | 1,746 kr |
| Jul | 1,802 | 715 | 1,087 | 290 | 1,195 kr |
| Aug | 1,464 | 724 | 741 | 484 | 1,389 kr |
| Sep | 1,029 | 725 | 304 | 887 | 1,394 kr |
| Oct | 576 | 562 | 14 | 1,454 | 965 kr |
| Nov | 212 | 212 | 0 | 2,410 | 443 kr |
| Dec | 118 | 118 | 0 | 2,709 | 161 kr |
| Year | 11,947 | 5,911 | 6,037 | 14,194 | 11,811 kr |
Roof facing south, 20,000 kWh a year, someone home in the day. kWh and kr per month.
Source: priv/data/city_solar/<city>.json · scenarios[id=S-30-b0-nocar-20-home].months, savings_kr
Payback year by year: 30 panels (12.6 kW)
The kronor saved add up year by year. Where the pile passes the price (175,927 kr) the system is paid back: year 15.
| Year | Saved in total | Net |
|---|---|---|
| 1 | 11,811 kr | -164,116 kr |
| 5 | 59,055 kr | -116,872 kr |
| 10 | 118,110 kr | -57,817 kr |
| 15 | 177,165 kr | 1,238 kr |
| 20 | 236,220 kr | 60,293 kr |
| 25 | 295,275 kr | 119,348 kr |
| Payback | 14.9 years | 119,348 kr |
The same savings every year, no price changes; the battery's extra savings count for 10 years. Roof facing south, 20,000 kWh a year, someone home in the day. kWh and kr per month.
Source: priv/data/city_solar/<city>.json · scenarios[id=S-30-b0-nocar-20-home].price_kr, savings_kr, battery_savings_kr, net_25_kr
Savings per month: 10 panels (4.2 kW) + 10 kWh battery
How 8,117 kr a year spreads over the year. The summer months give the most; winter little, because the sun is low.
| Month | Solar | Used | Sold | Bought | Saved |
|---|---|---|---|---|---|
| Jan | 59 | 59 | 0 | 2,573 | 257 kr |
| Feb | 134 | 134 | 0 | 2,100 | 409 kr |
| Mar | 348 | 348 | 0 | 1,500 | 618 kr |
| Apr | 495 | 495 | 0 | 338 | 690 kr |
| May | 582 | 581 | 0 | 45 | 889 kr |
| Jun | 631 | 631 | 0 | 193 | 1,715 kr |
| Jul | 601 | 600 | 0 | 435 | 802 kr |
| Aug | 488 | 488 | 0 | 757 | 830 kr |
| Sep | 343 | 343 | 0 | 1,310 | 845 kr |
| Oct | 192 | 192 | 0 | 1,853 | 534 kr |
| Nov | 71 | 71 | 0 | 2,581 | 396 kr |
| Dec | 39 | 39 | 0 | 2,819 | 132 kr |
| Year | 3,983 | 3,981 | 0 | 16,504 | 8,117 kr |
Roof facing south, 20,000 kWh a year, someone home in the day. kWh and kr per month.
Source: priv/data/city_solar/<city>.json · scenarios[id=S-10-b10-nocar-20-home].months, savings_kr
Payback year by year: 10 panels (4.2 kW) + 10 kWh battery
The kronor saved add up year by year. Where the pile passes the price (135,294 kr) the system is paid back: year 21.
| Year | Saved in total | Net |
|---|---|---|
| 1 | 8,117 kr | -127,177 kr |
| 5 | 40,585 kr | -94,709 kr |
| 10 | 81,170 kr | -54,124 kr |
| 15 | 106,345 kr | -28,949 kr |
| 20 | 131,520 kr | -3,774 kr |
| 21 | 136,555 kr | 1,261 kr |
| 25 | 156,695 kr | 21,401 kr |
| Payback | 16.7 years | 21,401 kr |
The same savings every year, no price changes; the battery's extra savings count for 10 years. Roof facing south, 20,000 kWh a year, someone home in the day. kWh and kr per month.
Source: priv/data/city_solar/<city>.json · scenarios[id=S-10-b10-nocar-20-home].price_kr, savings_kr, battery_savings_kr, net_25_kr
Savings per month: 20 panels (8.4 kW) + 10 kWh battery
How 12,294 kr a year spreads over the year. The summer months give the most; winter little, because the sun is low.
| Month | Solar | Used | Sold | Bought | Saved |
|---|---|---|---|---|---|
| Jan | 118 | 118 | 0 | 2,515 | 396 kr |
| Feb | 268 | 268 | 0 | 1,968 | 692 kr |
| Mar | 697 | 697 | 0 | 1,148 | 1,026 kr |
| Apr | 990 | 722 | 268 | 109 | 1,002 kr |
| May | 1,164 | 626 | 538 | 1 | 1,199 kr |
| Jun | 1,263 | 797 | 466 | 26 | 2,310 kr |
| Jul | 1,201 | 958 | 243 | 76 | 1,255 kr |
| Aug | 976 | 950 | 26 | 289 | 1,432 kr |
| Sep | 686 | 686 | 0 | 971 | 1,402 kr |
| Oct | 384 | 384 | 0 | 1,662 | 854 kr |
| Nov | 142 | 142 | 0 | 2,510 | 542 kr |
| Dec | 78 | 78 | 0 | 2,781 | 184 kr |
| Year | 7,967 | 6,426 | 1,541 | 14,056 | 12,294 kr |
Roof facing south, 20,000 kWh a year, someone home in the day. kWh and kr per month.
Source: priv/data/city_solar/<city>.json · scenarios[id=S-20-b10-nocar-20-home].months, savings_kr
Payback year by year: 20 panels (8.4 kW) + 10 kWh battery
The kronor saved add up year by year. Where the pile passes the price (186,765 kr) the system is paid back: year 18.
| Year | Saved in total | Net |
|---|---|---|
| 1 | 12,294 kr | -174,471 kr |
| 5 | 61,470 kr | -125,295 kr |
| 10 | 122,940 kr | -63,825 kr |
| 15 | 166,500 kr | -20,265 kr |
| 18 | 192,636 kr | 5,871 kr |
| 20 | 210,060 kr | 23,295 kr |
| 25 | 253,620 kr | 66,855 kr |
| Payback | 15.2 years | 66,855 kr |
The same savings every year, no price changes; the battery's extra savings count for 10 years. Roof facing south, 20,000 kWh a year, someone home in the day. kWh and kr per month.
Source: priv/data/city_solar/<city>.json · scenarios[id=S-20-b10-nocar-20-home].price_kr, savings_kr, battery_savings_kr, net_25_kr
Savings per month: 30 panels (12.6 kW) + 10 kWh battery
How 15,505 kr a year spreads over the year. The summer months give the most; winter little, because the sun is low.
| Month | Solar | Used | Sold | Bought | Saved |
|---|---|---|---|---|---|
| Jan | 177 | 177 | 0 | 2,456 | 519 kr |
| Feb | 401 | 401 | 0 | 1,835 | 975 kr |
| Mar | 1,045 | 996 | 50 | 847 | 1,383 kr |
| Apr | 1,484 | 742 | 742 | 88 | 1,162 kr |
| May | 1,745 | 625 | 1,121 | 1 | 1,492 kr |
| Jun | 1,894 | 824 | 1,070 | 0 | 1,849 kr |
| Jul | 1,802 | 1,016 | 786 | 17 | 1,509 kr |
| Aug | 1,464 | 1,022 | 443 | 215 | 1,736 kr |
| Sep | 1,029 | 985 | 44 | 668 | 2,771 kr |
| Oct | 576 | 576 | 0 | 1,472 | 1,181 kr |
| Nov | 212 | 212 | 0 | 2,440 | 690 kr |
| Dec | 118 | 118 | 0 | 2,743 | 238 kr |
| Year | 11,947 | 7,694 | 4,256 | 12,782 | 15,505 kr |
Roof facing south, 20,000 kWh a year, someone home in the day. kWh and kr per month.
Source: priv/data/city_solar/<city>.json · scenarios[id=S-30-b10-nocar-20-home].months, savings_kr
Payback year by year: 30 panels (12.6 kW) + 10 kWh battery
The kronor saved add up year by year. Where the pile passes the price (238,235 kr) the system is paid back: year 18.
| Year | Saved in total | Net |
|---|---|---|
| 1 | 15,505 kr | -222,730 kr |
| 5 | 77,525 kr | -160,710 kr |
| 10 | 155,050 kr | -83,185 kr |
| 15 | 214,105 kr | -24,130 kr |
| 18 | 249,538 kr | 11,303 kr |
| 20 | 273,160 kr | 34,925 kr |
| 25 | 332,215 kr | 93,980 kr |
| Payback | 15.4 years | 93,980 kr |
The same savings every year, no price changes; the battery's extra savings count for 10 years. Roof facing south, 20,000 kWh a year, someone home in the day. kWh and kr per month.
Source: priv/data/city_solar/<city>.json · scenarios[id=S-30-b10-nocar-20-home].price_kr, savings_kr, battery_savings_kr, net_25_kr
Savings per month: 20 panels (8.4 kW)
How 8,304 kr a year spreads over the year. The summer months give the most; winter little, because the sun is low.
| Month | Solar | Used | Sold | Bought | Saved |
|---|---|---|---|---|---|
| Jan | 98 | 98 | 0 | 2,503 | 206 kr |
| Feb | 233 | 233 | 0 | 1,970 | 495 kr |
| Mar | 631 | 600 | 31 | 1,204 | 746 kr |
| Apr | 937 | 441 | 497 | 361 | 697 kr |
| May | 1,136 | 407 | 728 | 195 | 987 kr |
| Jun | 1,243 | 550 | 694 | 254 | 1,301 kr |
| Jul | 1,178 | 642 | 536 | 364 | 920 kr |
| Aug | 940 | 644 | 297 | 564 | 1,031 kr |
| Sep | 639 | 608 | 31 | 1,003 | 1,001 kr |
| Oct | 342 | 342 | 0 | 1,674 | 579 kr |
| Nov | 121 | 121 | 0 | 2,502 | 253 kr |
| Dec | 64 | 64 | 0 | 2,763 | 88 kr |
| Year | 7,562 | 4,750 | 2,814 | 15,357 | 8,304 kr |
Roof facing south-east, 20,000 kWh a year, someone home in the day. kWh and kr per month.
Source: priv/data/city_solar/<city>.json · scenarios[id=SE-20-b0-nocar-20-home].months, savings_kr
Payback year by year: 20 panels (8.4 kW)
The kronor saved add up year by year. Where the pile passes the price (131,945 kr) the system is paid back: year 16.
| Year | Saved in total | Net |
|---|---|---|
| 1 | 8,304 kr | -123,641 kr |
| 5 | 41,520 kr | -90,425 kr |
| 10 | 83,040 kr | -48,905 kr |
| 15 | 124,560 kr | -7,385 kr |
| 16 | 132,864 kr | 919 kr |
| 20 | 166,080 kr | 34,135 kr |
| 25 | 207,600 kr | 75,655 kr |
| Payback | 15.9 years | 75,655 kr |
The same savings every year, no price changes; the battery's extra savings count for 10 years. Roof facing south-east, 20,000 kWh a year, someone home in the day. kWh and kr per month.
Source: priv/data/city_solar/<city>.json · scenarios[id=SE-20-b0-nocar-20-home].price_kr, savings_kr, battery_savings_kr, net_25_kr
Savings per month: 20 panels (8.4 kW)
How 8,387 kr a year spreads over the year. The summer months give the most; winter little, because the sun is low.
| Month | Solar | Used | Sold | Bought | Saved |
|---|---|---|---|---|---|
| Jan | 98 | 98 | 0 | 2,503 | 204 kr |
| Feb | 233 | 233 | 0 | 1,969 | 483 kr |
| Mar | 632 | 602 | 30 | 1,201 | 737 kr |
| Apr | 938 | 463 | 476 | 339 | 692 kr |
| May | 1,136 | 434 | 702 | 168 | 1,010 kr |
| Jun | 1,243 | 589 | 655 | 215 | 1,356 kr |
| Jul | 1,178 | 676 | 502 | 329 | 942 kr |
| Aug | 940 | 666 | 274 | 542 | 1,057 kr |
| Sep | 639 | 604 | 34 | 1,007 | 986 kr |
| Oct | 341 | 341 | 0 | 1,674 | 580 kr |
| Nov | 121 | 121 | 0 | 2,502 | 252 kr |
| Dec | 64 | 64 | 0 | 2,763 | 88 kr |
| Year | 7,563 | 4,891 | 2,673 | 15,212 | 8,387 kr |
Roof facing south-west, 20,000 kWh a year, someone home in the day. kWh and kr per month.
Source: priv/data/city_solar/<city>.json · scenarios[id=SW-20-b0-nocar-20-home].months, savings_kr
Payback year by year: 20 panels (8.4 kW)
The kronor saved add up year by year. Where the pile passes the price (131,945 kr) the system is paid back: year 16.
| Year | Saved in total | Net |
|---|---|---|
| 1 | 8,387 kr | -123,558 kr |
| 5 | 41,935 kr | -90,010 kr |
| 10 | 83,870 kr | -48,075 kr |
| 15 | 125,805 kr | -6,140 kr |
| 16 | 134,192 kr | 2,247 kr |
| 20 | 167,740 kr | 35,795 kr |
| 25 | 209,675 kr | 77,730 kr |
| Payback | 15.7 years | 77,730 kr |
The same savings every year, no price changes; the battery's extra savings count for 10 years. Roof facing south-west, 20,000 kWh a year, someone home in the day. kWh and kr per month.
Source: priv/data/city_solar/<city>.json · scenarios[id=SW-20-b0-nocar-20-home].price_kr, savings_kr, battery_savings_kr, net_25_kr
Savings per month: 20 panels (8.4 kW)
How 7,333 kr a year spreads over the year. The summer months give the most; winter little, because the sun is low.
| Month | Solar | Used | Sold | Bought | Saved |
|---|---|---|---|---|---|
| Jan | 57 | 57 | 0 | 2,544 | 120 kr |
| Feb | 161 | 161 | 0 | 2,042 | 345 kr |
| Mar | 485 | 483 | 2 | 1,321 | 603 kr |
| Apr | 800 | 433 | 367 | 369 | 662 kr |
| May | 1,042 | 405 | 637 | 197 | 955 kr |
| Jun | 1,165 | 541 | 624 | 263 | 1,271 kr |
| Jul | 1,095 | 632 | 464 | 374 | 901 kr |
| Aug | 840 | 629 | 211 | 578 | 976 kr |
| Sep | 529 | 523 | 5 | 1,088 | 864 kr |
| Oct | 250 | 250 | 0 | 1,766 | 428 kr |
| Nov | 77 | 77 | 0 | 2,546 | 161 kr |
| Dec | 34 | 34 | 0 | 2,793 | 47 kr |
| Year | 6,535 | 4,225 | 2,310 | 15,881 | 7,333 kr |
Roof facing east, 20,000 kWh a year, someone home in the day. kWh and kr per month.
Source: priv/data/city_solar/<city>.json · scenarios[id=E-20-b0-nocar-20-home].months, savings_kr
Payback year by year: 20 panels (8.4 kW)
The kronor saved add up year by year. Where the pile passes the price (131,945 kr) the system is paid back: year 18.
| Year | Saved in total | Net |
|---|---|---|
| 1 | 7,333 kr | -124,612 kr |
| 5 | 36,665 kr | -95,280 kr |
| 10 | 73,330 kr | -58,615 kr |
| 15 | 109,995 kr | -21,950 kr |
| 18 | 131,994 kr | 49 kr |
| 20 | 146,660 kr | 14,715 kr |
| 25 | 183,325 kr | 51,380 kr |
| Payback | 18.0 years | 51,380 kr |
The same savings every year, no price changes; the battery's extra savings count for 10 years. Roof facing east, 20,000 kWh a year, someone home in the day. kWh and kr per month.
Source: priv/data/city_solar/<city>.json · scenarios[id=E-20-b0-nocar-20-home].price_kr, savings_kr, battery_savings_kr, net_25_kr
Savings per month: 20 panels (8.4 kW)
How 7,471 kr a year spreads over the year. The summer months give the most; winter little, because the sun is low.
| Month | Solar | Used | Sold | Bought | Saved |
|---|---|---|---|---|---|
| Jan | 57 | 57 | 0 | 2,544 | 119 kr |
| Feb | 161 | 161 | 0 | 2,042 | 332 kr |
| Mar | 486 | 483 | 3 | 1,321 | 590 kr |
| Apr | 802 | 462 | 339 | 340 | 655 kr |
| May | 1,043 | 442 | 601 | 161 | 989 kr |
| Jun | 1,165 | 599 | 566 | 205 | 1,354 kr |
| Jul | 1,095 | 690 | 405 | 316 | 942 kr |
| Aug | 839 | 659 | 180 | 548 | 1,011 kr |
| Sep | 528 | 521 | 7 | 1,091 | 843 kr |
| Oct | 250 | 250 | 0 | 1,766 | 429 kr |
| Nov | 77 | 77 | 0 | 2,546 | 160 kr |
| Dec | 34 | 34 | 0 | 2,793 | 47 kr |
| Year | 6,537 | 4,435 | 2,101 | 15,673 | 7,471 kr |
Roof facing west, 20,000 kWh a year, someone home in the day. kWh and kr per month.
Source: priv/data/city_solar/<city>.json · scenarios[id=W-20-b0-nocar-20-home].months, savings_kr
Payback year by year: 20 panels (8.4 kW)
The kronor saved add up year by year. Where the pile passes the price (131,945 kr) the system is paid back: year 18.
| Year | Saved in total | Net |
|---|---|---|
| 1 | 7,471 kr | -124,474 kr |
| 5 | 37,355 kr | -94,590 kr |
| 10 | 74,710 kr | -57,235 kr |
| 15 | 112,065 kr | -19,880 kr |
| 18 | 134,478 kr | 2,533 kr |
| 20 | 149,420 kr | 17,475 kr |
| 25 | 186,775 kr | 54,830 kr |
| Payback | 17.7 years | 54,830 kr |
The same savings every year, no price changes; the battery's extra savings count for 10 years. Roof facing west, 20,000 kWh a year, someone home in the day. kWh and kr per month.
Source: priv/data/city_solar/<city>.json · scenarios[id=W-20-b0-nocar-20-home].price_kr, savings_kr, battery_savings_kr, net_25_kr
Savings per month: 20 panels (8.4 kW)
How 6,000 kr a year spreads over the year. The summer months give the most; winter little, because the sun is low.
| Month | Solar | Used | Sold | Bought | Saved |
|---|---|---|---|---|---|
| Jan | 37 | 37 | 0 | 2,564 | 78 kr |
| Feb | 93 | 93 | 0 | 2,110 | 195 kr |
| Mar | 241 | 241 | 0 | 1,563 | 300 kr |
| Apr | 538 | 440 | 98 | 362 | 554 kr |
| May | 859 | 442 | 417 | 160 | 898 kr |
| Jun | 1,018 | 615 | 403 | 189 | 1,283 kr |
| Jul | 936 | 701 | 235 | 304 | 908 kr |
| Aug | 646 | 619 | 27 | 588 | 869 kr |
| Sep | 322 | 322 | 0 | 1,290 | 528 kr |
| Oct | 143 | 143 | 0 | 1,873 | 246 kr |
| Nov | 52 | 52 | 0 | 2,571 | 108 kr |
| Dec | 24 | 24 | 0 | 2,803 | 33 kr |
| Year | 4,909 | 3,729 | 1,180 | 16,377 | 6,000 kr |
Roof facing north, 20,000 kWh a year, someone home in the day. kWh and kr per month.
Source: priv/data/city_solar/<city>.json · scenarios[id=N-20-b0-nocar-20-home].months, savings_kr
Payback year by year: 20 panels (8.4 kW)
The kronor saved add up year by year. Where the pile passes the price (131,945 kr) the system is paid back: year 22.
| Year | Saved in total | Net |
|---|---|---|
| 1 | 6,000 kr | -125,945 kr |
| 5 | 30,000 kr | -101,945 kr |
| 10 | 60,000 kr | -71,945 kr |
| 15 | 90,000 kr | -41,945 kr |
| 20 | 120,000 kr | -11,945 kr |
| 22 | 132,000 kr | 55 kr |
| 25 | 150,000 kr | 18,055 kr |
| Payback | 22.0 years | 18,055 kr |
The same savings every year, no price changes; the battery's extra savings count for 10 years. Roof facing north, 20,000 kWh a year, someone home in the day. kWh and kr per month.
Source: priv/data/city_solar/<city>.json · scenarios[id=N-20-b0-nocar-20-home].price_kr, savings_kr, battery_savings_kr, net_25_kr
Questions and answers
Do solar panels pay off in Karlstad?
Yes, facing south, south-east or south-west. East and west: yes, 2.9 years longer payback. North: no. Our pick for 20,000 kWh a year: 30 panels (12.6 kW), 175,927 kr after the deduction, saves 11,811 kr a year, paid back in 14.9 years.
Does a battery pay off?
Not for your wallet. 10 kWh saves 3,582 kr more a year and costs 54,820 kr more; paid back in 15.3 years, the warranty is 10 years. For backup power and more of your own solar: yes.
How much do the panels give in winter?
Little. December to February give 6% of the year's solar and cover 6% of the house's power. Summer gives 43%.
Does a north-facing roof work?
It gives 62% of a south roof; the payback is 22.0 years. With another roof face or a garage, use that.
What does price zone SE3 mean for my solar power?
The SE3 spot price averaged 0.79 kr/kWh over the last year. A kWh you use yourself is worth 1.60 kr with markup, grid fee, energy tax and VAT; a sold kWh earns the spot price. SE1: 0.45 kr, SE4: 1.04 kr.
What are the green tech deduction rules?
15% for panels, 50% for a battery and a charger, counted on 97% of the price (the Tax Agency's standard rate, so 48.5% of a battery's price), at most 50,000 kr per person and year. The 60 öre credit per sold kWh ended on 1 January 2026.