Solar panels · Luleå

Solar panels in Luleå: what pays off on your roof?

432 calculations · six roof directions, 10–30 panels, battery, car · calculated 2026-11-09 with the same engine as our calculator

In short

Which roof
South South-east and south-west give 95%, east and west 82%, north 60% of south (895 kWh per kW a year).
What it costs
175,927 kr 30 panels (12.6 kW) after the green tech deduction. Price incl. VAT 205,883 kr. Needs about 80 m² of roof.
When it is paid back
Does not pay back Net -5,527 kr over 25 years at our example prices. 20 panels: 26.1 years.
Battery?
No, not for your wallet 10 kWh costs 54,820 kr more and saves 1,117 kr a year: paid back in 49.1 years, the warranty is 10 years.
Do this
Wait or calculate again A lower price, an electric car or a heat pump can change the sums. Calculate your address →

What do solar panels cost in Luleå?

The price of solar panels in Luleå 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 1,765 kr a year.

With a 10 kWh battery: 47,331–62,308 kr more to pay, 908–1,117 kr more a year.

Show the rows with a battery

* 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: get several quotes. At our example prices even 30 panels (12.6 kW) pays back only in 25.8 years and gives -5,527 kr net over 25 years. A lower price changes that.

  1. 1 · The whole roof

    30 panels (12.6 kW)

    Does not pay off

    To pay after the deduction

    175,927 kr

    Saves a year
    6,816 kr
    Payback
    25.8 years
    Price incl. VAT
    205,883 kr
    Net over 25 years
    -5,527 kr
    Roof area
    about 80 m²

    47% of the solar power is used at home.

  2. 2 · Mid-size

    20 panels (8.4 kW)

    Does not pay off

    To pay after the deduction

    131,945 kr

    Saves a year
    5,051 kr
    Payback
    26.1 years
    Price incl. VAT
    154,412 kr
    Net over 25 years
    -5,670 kr
    Roof area
    about 55 m²

    43,982 kr cheaper than the first pick, with a payback of 26.1 years.

  3. 3 · With a battery

    20 panels (8.4 kW) + 10 kWh battery

    The battery does not pay off

    To pay after the deduction

    186,765 kr

    Saves a year
    6,168 kr
    Payback
    30.3 years
    Price incl. VAT
    236,765 kr
    Net over 25 years
    -49,320 kr
    Roof area
    about 55 m²

    The battery saves 1,117 kr a year but costs 54,820 kr more. It lowers the 25-year net by 43,650 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.

All options: 25-year net and payback
30 panels -5,527 kr · 25.8 yrs 20 panels -5,670 kr · 26.1 yrs 10 panels -13,988 kr · 29.7 yrs 20 panels + battery -49,320 kr · 30.3 yrs 10 panels + battery -52,239 kr · 35.0 yrs 30 panels + battery -56,695 kr · 30.0 yrs

Compare with north and south

The same house in Stockholm and Malmö: 950 and 1,035 kWh per kW against Luleå’s 895.

Figure Luleå SE1 Stockholm SE3 Malmö SE4
kWh per kW, south 895 950 1,035
Saves a year, 20 panels 5,051 kr 9,438 kr 12,129 kr
Payback, 20 panels 26.1 years 14.0 years 10.9 years
Battery paid back in 49.1 years 17.1 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.

Does the roof direction matter?

Yes, more than anything. South gives 2,983 kWh more a year than north with 20 panels.

South-east and south-west are 5% below south, east and west 18%, north 40%. With both east and west, use both; with only north, try the garage.

* 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 1,117 kr more a year, costs 54,820 kr more. Paid back in 49.1 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.

Right roof face +2,983 kWh/yr South instead of north, 20 panels.
Fill the roof +8,461 kr net over 25 years 30 panels instead of 10. A large part of the price is fixed.
Power at midday +611 kr/yr Someone home 8–17 versus all away. Laundry, dishes and hot water in the daytime.
Charge the car in the daytime +395 kr/yr The car takes 859 kWh of solar a year. Charging from 17:00 gives 0 kr.
Battery +1,117 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, 57% of the solar power is sold at the spot price.

How much do solar panels give in winter?

Winter gives 3% of the year's solar. Spring and autumn bring 52% of the savings.

Summer brings 47% of the solar power and the reference house sells 45% of it at the spot price (0.45 kr on average). In winter the panels cover 3% of the house's power; every kWh you do not buy is worth 0.95 kr.

The reference house with a 10 kWh battery, kWh per season.

Winter
206 6,626 888 799 House Sun Battery Grid kWh

Solar 206 kWh · sold 0 kWh · bought 7,514 kWh · saved 672 kr

The battery stored 0 kWh of solar and 888 kWh of cheap grid power, and gave 799 kWh back when power was expensive.

Spring and autumn
2,411 549 795 6,035 582 1,012 House Sun Battery Grid kWh

Solar 3,755 kWh · sold 795 kWh · bought 6,617 kWh · saved 3,015 kr

The battery stored 549 kWh of solar and 582 kWh of cheap grid power, and gave 1,012 kWh back when power was expensive.

Summer
1,940 835 783 298 23 778 House Sun Battery Grid kWh

Solar 3,558 kWh · sold 783 kWh · bought 321 kWh · saved 2,481 kr

The battery stored 835 kWh of solar and 23 kWh of cheap grid power, and gave 778 kWh back when power was expensive.

Without a battery: 20 panels (8.4 kW).
Season Solar At home Sold Saved
Winter 206 kWh 206 kWh 0 kWh 358 kr
Spring and autumn 3,755 kWh 2,411 kWh 1,344 kWh 2,616 kr
Summer 3,558 kWh 1,940 kWh 1,617 kWh 2,077 kr

What is special about Luleå?

Price zone SE1, Luleå Energi Elnät's grid, 66° north, 3.0 kN/m² of snow.

Luleå is the northernmost large city in Sweden, at 65.6° N. In June the day is 23.1 hours long. At the December solstice the noon sun stands only 1.0° high. Luleå is in price zone SE1, where the average spot price is lowest, and has the reduced energy tax. Luleå Energi charges 0 öre per kWh for transfer, only a fixed fee. The ground snow load is 3.0 kN/m².

Spot price SE1
0.45 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: Luleå Energi Elnät
0.00 kr/kWh + 668 kr/month 20 A fuse. No variable fee: your own solar saves the power price, energy tax and VAT, but no grid fee. Source: Luleå Energi Elnät, Prislista Elnät, från 1 januari 2026.
Sun height
48° / 1° At midday at midsummer and midwinter at 65.6° north. The day is 23.1 hours in June, 3.1 in December.
Snow load
3.0 kN/m² Boverket's EKS. The installer sizes the fixings for it.

Benefits of solar in Luleå

Nearby cities: Umeå (215 km) · Sundsvall (426 km) · Gävle (601 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 Luleå, 27° roof, no shade, 420 W panels.
  • Weather: PVGIS for the place. Power price: SE1 spot 2025-11-09 to 2026-11-09 + markup 0.05 kr + Luleå Energi Elnät 0.00 kr + energy tax 0.26 kr (the reduced rate in northern Sweden, Swedish Tax Agency 2026) + 25% VAT = 0.95 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.

87,963 131,945 175,927 135,294 186,765 238,235 10 p 20 p 30 p 10 p+b 20 p+b 30 p+b
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.

7,518 7,142 7,142 6,153 6,154 4,535 South South-east South-west East West North
Month South South-east South-west East West North
Jan 26 21 21 9 9 6
Feb 175 150 150 98 98 63
Mar 631 566 567 425 426 227
Apr 960 906 907 766 767 492
May 1,219 1,183 1,183 1,064 1,065 832
Jun 1,293 1,271 1,271 1,184 1,184 1,019
Jul 1,234 1,208 1,207 1,113 1,113 933
Aug 1,031 985 984 856 854 597
Sep 614 565 564 450 449 251
Oct 280 244 243 167 166 100
Nov 51 42 42 22 22 16
Dec 4 3 3 0 1 0
Year, kWh 7,518 7,142 7,142 6,153 6,154 4,535

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.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Without battery With 10 kWh
Month Without battery With 10 kWh Difference
Jan 44 kr 175 kr 131 kr
Feb 310 kr 428 kr 118 kr
Mar 433 kr 446 kr 13 kr
Apr 436 kr 562 kr 126 kr
May 803 kr 875 kr 72 kr
Jun 859 kr 948 kr 89 kr
Jul 490 kr 612 kr 122 kr
Aug 728 kr 921 kr 193 kr
Sep 648 kr 767 kr 119 kr
Oct 249 kr 249 kr 0 kr
Nov 47 kr 116 kr 69 kr
Dec 4 kr 69 kr 65 kr
Year 5,051 kr 6,168 kr 1,117 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-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.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 10 panels 20 panels 30 panels
System To pay Saves/yr Net 25 yrs
10 panels (4.2 kW) 87,963 kr 2,959 kr -13,988 kr
20 panels (8.4 kW) 131,945 kr 5,051 kr -5,670 kr
30 panels (12.6 kW) 175,927 kr 6,816 kr -5,527 kr
30 versus 10 panels 8,461 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.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Away 8–17 Someone home
Month Away 8–17 Someone home Difference
Jan 44 kr 44 kr 0 kr
Feb 308 kr 310 kr 2 kr
Mar 329 kr 433 kr 104 kr
Apr 363 kr 436 kr 73 kr
May 763 kr 803 kr 40 kr
Jun 801 kr 859 kr 58 kr
Jul 408 kr 490 kr 82 kr
Aug 607 kr 728 kr 121 kr
Sep 530 kr 648 kr 118 kr
Oct 236 kr 249 kr 13 kr
Nov 47 kr 47 kr 0 kr
Dec 4 kr 4 kr 0 kr
Year 4,440 kr 5,051 kr 611 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 859 kWh of solar a year when it is home in the day. The difference in savings is solar that would otherwise be sold cheaply.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec No car Car, home in the day
Month No car Car, home in the day Difference
Jan 44 kr 44 kr 0 kr
Feb 310 kr 310 kr 0 kr
Mar 433 kr 436 kr 3 kr
Apr 436 kr 508 kr 72 kr
May 803 kr 888 kr 85 kr
Jun 859 kr 939 kr 80 kr
Jul 490 kr 563 kr 73 kr
Aug 728 kr 806 kr 78 kr
Sep 648 kr 652 kr 4 kr
Oct 249 kr 249 kr 0 kr
Nov 47 kr 47 kr 0 kr
Dec 4 kr 4 kr 0 kr
Year 5,051 kr 5,446 kr 395 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.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Solar Use
Month Solar Used Sold Bought Saved
Jan 26 26 0 2,575 44 kr
Feb 175 175 0 2,028 310 kr
Mar 631 600 31 1,204 433 kr
Apr 960 461 498 341 436 kr
May 1,219 429 790 173 803 kr
Jun 1,293 588 705 215 859 kr
Jul 1,234 685 549 320 490 kr
Aug 1,031 667 364 540 728 kr
Sep 614 589 25 1,022 648 kr
Oct 280 280 0 1,736 249 kr
Nov 51 51 0 2,572 47 kr
Dec 4 4 0 2,823 4 kr
Year 7,518 4,555 2,962 15,549 5,051 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 SE1 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.

0.94 0.99 0.23 0.26 0.50 0.45 0.16 0.39 0.46 0.31 0.38 0.32 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hour Average kr/kWh
00:00 0.34
01:00 0.33
02:00 0.32
03:00 0.32
04:00 0.33
05:00 0.38
06:00 0.44
07:00 0.54
08:00 0.58
09:00 0.55
10:00 0.51
11:00 0.47
12:00 0.44
13:00 0.42
14:00 0.43
15:00 0.46
16:00 0.51
17:00 0.57
18:00 0.58
19:00 0.54
20:00 0.48
21:00 0.45
22:00 0.40
23:00 0.35
Year 0.45

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.

0.45 0.05 0.00 0.26 0.19 Spot Markup Luleå Energi Elnät Energy tax VAT
Part kr/kWh
Spot price, average 0.45
Retailer markup 0.05
Transfer fee, Luleå Energi Elnät 0.00
Energy tax 0.26
VAT 25% 0.19
Total 0.95

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)

Luleå compared with Stockholm and Malmö

The same house, roof and prices in each city. Only the sun, the power price, the grid and the energy tax differ.

895 950 1,035 Luleå Stockholm Malmö
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
Stockholm SE3 950 9,438 kr 14.0 years 17.1 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, stockholm, malmo)

Savings per month: 10 panels (4.2 kW)

How 2,959 kr a year spreads over the year. The summer months give the most; winter little, because the sun is low.

22 155 224 287 484 526 332 448 331 124 24 2 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Month Solar Used Sold Bought Saved
Jan 13 13 0 2,588 22 kr
Feb 88 88 0 2,115 155 kr
Mar 315 315 0 1,488 224 kr
Apr 480 386 94 416 287 kr
May 610 374 236 228 484 kr
Jun 647 490 157 314 526 kr
Jul 617 544 72 461 332 kr
Aug 515 509 6 698 448 kr
Sep 307 307 0 1,304 331 kr
Oct 140 140 0 1,876 124 kr
Nov 25 25 0 2,597 24 kr
Dec 2 2 0 2,825 2 kr
Year 3,759 3,193 565 16,910 2,959 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 –.

Price 87,963 kr yr 0 yr 5 yr 10 yr 15 yr 20 yr 25
Year Saved in total Net
1 2,959 kr -85,004 kr
5 14,795 kr -73,168 kr
10 29,590 kr -58,373 kr
15 44,385 kr -43,578 kr
20 59,180 kr -28,783 kr
25 73,975 kr -13,988 kr
Payback 29.7 years -13,988 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 5,051 kr a year spreads over the year. The summer months give the most; winter little, because the sun is low.

44 310 433 436 803 859 490 728 648 249 47 4 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Month Solar Used Sold Bought Saved
Jan 26 26 0 2,575 44 kr
Feb 175 175 0 2,028 310 kr
Mar 631 600 31 1,204 433 kr
Apr 960 461 498 341 436 kr
May 1,219 429 790 173 803 kr
Jun 1,293 588 705 215 859 kr
Jul 1,234 685 549 320 490 kr
Aug 1,031 667 364 540 728 kr
Sep 614 589 25 1,022 648 kr
Oct 280 280 0 1,736 249 kr
Nov 51 51 0 2,572 47 kr
Dec 4 4 0 2,823 4 kr
Year 7,518 4,555 2,962 15,549 5,051 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 –.

Price 131,945 kr yr 0 yr 5 yr 10 yr 15 yr 20 yr 25
Year Saved in total Net
1 5,051 kr -126,894 kr
5 25,255 kr -106,690 kr
10 50,510 kr -81,435 kr
15 75,765 kr -56,180 kr
20 101,020 kr -30,925 kr
25 126,275 kr -5,670 kr
Payback 26.1 years -5,670 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 6,816 kr a year spreads over the year. The summer months give the most; winter little, because the sun is low.

65 464 565 562 1,104 1,160 611 963 872 373 71 6 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Month Solar Used Sold Bought Saved
Jan 39 39 0 2,562 65 kr
Feb 263 263 0 1,940 464 kr
Mar 946 711 235 1,092 565 kr
Apr 1,440 491 949 311 562 kr
May 1,829 450 1,378 152 1,104 kr
Jun 1,940 627 1,313 177 1,160 kr
Jul 1,851 740 1,111 266 611 kr
Aug 1,546 737 810 471 963 kr
Sep 921 693 228 918 872 kr
Oct 420 420 0 1,596 373 kr
Nov 76 76 0 2,546 71 kr
Dec 6 6 0 2,820 6 kr
Year 11,277 5,253 6,024 14,851 6,816 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 –.

Price 175,927 kr yr 0 yr 5 yr 10 yr 15 yr 20 yr 25
Year Saved in total Net
1 6,816 kr -169,111 kr
5 34,080 kr -141,847 kr
10 68,160 kr -107,767 kr
15 102,240 kr -73,687 kr
20 136,320 kr -39,607 kr
25 170,400 kr -5,527 kr
Payback 25.8 years -5,527 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 3,867 kr a year spreads over the year. The summer months give the most; winter little, because the sun is low.

153 274 224 339 614 631 363 542 444 124 92 67 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Month Solar Used Sold Bought Saved
Jan 13 13 0 2,620 153 kr
Feb 88 88 0 2,143 274 kr
Mar 315 315 0 1,488 224 kr
Apr 480 480 0 332 339 kr
May 610 605 4 24 614 kr
Jun 647 647 0 170 631 kr
Jul 617 616 0 396 363 kr
Aug 515 515 0 723 542 kr
Sep 307 307 0 1,334 444 kr
Oct 140 140 0 1,876 124 kr
Nov 25 25 0 2,626 92 kr
Dec 2 2 0 2,855 67 kr
Year 3,759 3,753 4 16,587 3,867 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 –.

Price 135,294 kr yr 0 yr 5 yr 10 yr 15 yr 20 yr 25
Year Saved in total Net
1 3,867 kr -131,427 kr
5 19,335 kr -115,959 kr
10 38,670 kr -96,624 kr
15 53,465 kr -81,829 kr
20 68,260 kr -67,034 kr
25 83,055 kr -52,239 kr
Payback 35.0 years -52,239 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 6,168 kr a year spreads over the year. The summer months give the most; winter little, because the sun is low.

175 428 446 562 875 948 612 921 767 249 116 69 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Month Solar Used Sold Bought Saved
Jan 26 26 0 2,606 175 kr
Feb 175 175 0 2,056 428 kr
Mar 631 631 0 1,176 446 kr
Apr 960 758 201 76 562 kr
May 1,219 625 594 0 875 kr
Jun 1,293 825 468 0 948 kr
Jul 1,234 988 246 45 612 kr
Aug 1,031 962 69 276 921 kr
Sep 614 614 0 1,028 767 kr
Oct 280 280 0 1,736 249 kr
Nov 51 51 0 2,601 116 kr
Dec 4 4 0 2,853 69 kr
Year 7,518 5,939 1,578 14,453 6,168 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 –.

Price 186,765 kr yr 0 yr 5 yr 10 yr 15 yr 20 yr 25
Year Saved in total Net
1 6,168 kr -180,597 kr
5 30,840 kr -155,925 kr
10 61,680 kr -125,085 kr
15 86,935 kr -99,830 kr
20 112,190 kr -74,575 kr
25 137,445 kr -49,320 kr
Payback 30.3 years -49,320 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 7,930 kr a year spreads over the year. The summer months give the most; winter little, because the sun is low.

197 583 655 664 1,157 1,213 717 1,126 1,035 373 139 71 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Month Solar Used Sold Bought Saved
Jan 39 39 0 2,593 197 kr
Feb 263 263 0 1,968 583 kr
Mar 946 927 19 898 655 kr
Apr 1,440 788 652 47 664 kr
May 1,829 622 1,206 0 1,157 kr
Jun 1,940 822 1,118 0 1,213 kr
Jul 1,851 1,026 825 5 717 kr
Aug 1,546 1,040 507 196 1,126 kr
Sep 921 904 17 744 1,035 kr
Oct 420 420 0 1,596 373 kr
Nov 76 76 0 2,576 139 kr
Dec 6 6 0 2,851 71 kr
Year 11,277 6,933 4,344 13,474 7,930 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 –.

Price 238,235 kr yr 0 yr 5 yr 10 yr 15 yr 20 yr 25
Year Saved in total Net
1 7,930 kr -230,305 kr
5 39,650 kr -198,585 kr
10 79,300 kr -158,935 kr
15 113,380 kr -124,855 kr
20 147,460 kr -90,775 kr
25 181,540 kr -56,695 kr
Payback 30.0 years -56,695 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 4,820 kr a year spreads over the year. The summer months give the most; winter little, because the sun is low.

34 268 397 429 791 850 475 710 607 217 39 3 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Month Solar Used Sold Bought Saved
Jan 21 21 0 2,581 34 kr
Feb 150 150 0 2,053 268 kr
Mar 566 547 19 1,256 397 kr
Apr 906 449 456 353 429 kr
May 1,183 416 767 186 791 kr
Jun 1,271 563 708 241 850 kr
Jul 1,208 655 553 351 475 kr
Aug 985 658 327 549 710 kr
Sep 565 550 15 1,062 607 kr
Oct 244 244 0 1,772 217 kr
Nov 42 42 0 2,581 39 kr
Dec 3 3 0 2,824 3 kr
Year 7,144 4,298 2,845 15,809 4,820 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 –.

Price 131,945 kr yr 0 yr 5 yr 10 yr 15 yr 20 yr 25
Year Saved in total Net
1 4,820 kr -127,125 kr
5 24,100 kr -107,845 kr
10 48,200 kr -83,745 kr
15 72,300 kr -59,645 kr
20 96,400 kr -35,545 kr
25 120,500 kr -11,445 kr
Payback 27.4 years -11,445 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 4,837 kr a year spreads over the year. The summer months give the most; winter little, because the sun is low.

34 262 392 420 798 867 498 716 593 216 38 3 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Month Solar Used Sold Bought Saved
Jan 21 21 0 2,581 34 kr
Feb 150 150 0 2,053 262 kr
Mar 567 553 14 1,251 392 kr
Apr 907 467 440 335 420 kr
May 1,183 451 732 151 798 kr
Jun 1,271 625 646 179 867 kr
Jul 1,207 711 496 295 498 kr
Aug 984 672 312 536 716 kr
Sep 564 549 15 1,062 593 kr
Oct 243 243 0 1,773 216 kr
Nov 42 42 0 2,581 38 kr
Dec 3 3 0 2,824 3 kr
Year 7,142 4,487 2,655 15,621 4,837 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 –.

Price 131,945 kr yr 0 yr 5 yr 10 yr 15 yr 20 yr 25
Year Saved in total Net
1 4,837 kr -127,108 kr
5 24,185 kr -107,760 kr
10 48,370 kr -83,575 kr
15 72,555 kr -59,390 kr
20 96,740 kr -35,205 kr
25 120,925 kr -11,020 kr
Payback 27.3 years -11,020 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 4,251 kr a year spreads over the year. The summer months give the most; winter little, because the sun is low.

15 176 308 402 746 822 458 659 495 149 21 0 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Month Solar Used Sold Bought Saved
Jan 9 9 0 2,592 15 kr
Feb 98 98 0 2,105 176 kr
Mar 425 425 0 1,379 308 kr
Apr 766 443 322 359 402 kr
May 1,064 413 651 189 746 kr
Jun 1,184 556 628 247 822 kr
Jul 1,113 646 468 360 458 kr
Aug 856 639 217 569 659 kr
Sep 450 448 2 1,163 495 kr
Oct 167 167 0 1,849 149 kr
Nov 22 22 0 2,600 21 kr
Dec 0 0 0 2,826 0 kr
Year 6,154 3,866 2,288 16,238 4,251 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 –.

Price 131,945 kr yr 0 yr 5 yr 10 yr 15 yr 20 yr 25
Year Saved in total Net
1 4,251 kr -127,694 kr
5 21,255 kr -110,690 kr
10 42,510 kr -89,435 kr
15 63,765 kr -68,180 kr
20 85,020 kr -46,925 kr
25 106,275 kr -25,670 kr
Payback 31.0 years -25,670 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 4,284 kr a year spreads over the year. The summer months give the most; winter little, because the sun is low.

15 170 299 391 759 846 492 669 476 147 20 0 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Month Solar Used Sold Bought Saved
Jan 9 9 0 2,592 15 kr
Feb 98 98 0 2,105 170 kr
Mar 426 426 0 1,377 299 kr
Apr 767 467 300 335 391 kr
May 1,065 463 602 139 759 kr
Jun 1,184 642 542 161 846 kr
Jul 1,113 724 389 281 492 kr
Aug 854 661 193 546 669 kr
Sep 449 447 2 1,164 476 kr
Oct 166 166 0 1,850 147 kr
Nov 22 22 0 2,600 20 kr
Dec 1 1 0 2,826 0 kr
Year 6,154 4,126 2,028 15,976 4,284 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 –.

Price 131,945 kr yr 0 yr 5 yr 10 yr 15 yr 20 yr 25
Year Saved in total Net
1 4,284 kr -127,661 kr
5 21,420 kr -110,525 kr
10 42,840 kr -89,105 kr
15 64,260 kr -67,685 kr
20 85,680 kr -46,265 kr
25 107,100 kr -24,845 kr
Payback 30.8 years -24,845 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 3,451 kr a year spreads over the year. The summer months give the most; winter little, because the sun is low.

11 111 162 326 660 796 470 538 273 89 15 0 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Month Solar Used Sold Bought Saved
Jan 6 6 0 2,595 11 kr
Feb 63 63 0 2,140 111 kr
Mar 227 227 0 1,576 162 kr
Apr 492 440 52 362 326 kr
May 832 457 375 145 660 kr
Jun 1,019 645 374 158 796 kr
Jul 933 733 200 272 470 kr
Aug 597 592 5 616 538 kr
Sep 251 251 0 1,360 273 kr
Oct 100 100 0 1,916 89 kr
Nov 16 16 0 2,607 15 kr
Dec 0 0 0 2,826 0 kr
Year 4,536 3,530 1,006 16,573 3,451 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 –.

Price 131,945 kr yr 0 yr 5 yr 10 yr 15 yr 20 yr 25
Year Saved in total Net
1 3,451 kr -128,494 kr
5 17,255 kr -114,690 kr
10 34,510 kr -97,435 kr
15 51,765 kr -80,180 kr
20 69,020 kr -62,925 kr
25 86,275 kr -45,670 kr
Payback 38.2 years -45,670 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 Luleå?

No, not at our example prices. Even the best pick, 30 panels (12.6 kW), costs 175,927 kr after the deduction and saves 6,816 kr a year: net -5,527 kr over 25 years, paid back in 25.8 years. A lower price or more daytime use can change that.

Does a battery pay off?

Not for your wallet. 10 kWh saves 1,117 kr more a year and costs 54,820 kr more; paid back in 49.1 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 3% of the year's solar and cover 3% of the house's power. Summer gives 47%.

Does a north-facing roof work?

It gives 60% of a south roof; the payback is 38.2 years. With another roof face or a garage, use that.

What does price zone SE1 mean for my solar power?

The SE1 spot price averaged 0.45 kr/kWh over the last year. A kWh you use yourself is worth 0.95 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.

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