Solar panels · Sundsvall

Solar panels in Sundsvall: 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 81%, north 61% of south (891 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
18.3 years A long time. Net 64,398 kr over 25 years. Profitable only if you use most of it yourself.
Battery?
No, not for your wallet 10 kWh costs 54,820 kr more and saves 1,416 kr a year: paid back in 38.7 years, the warranty is 10 years.
Do this
Calculate carefully Use much of your own power in the daytime, no battery, several quotes. Calculate your address →

What do solar panels cost in Sundsvall?

The price of solar panels in Sundsvall 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 2,287 kr a year.

With a 10 kWh battery: 47,331–62,308 kr more to pay, 834–1,544 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: fill the roof. 30 panels (12.6 kW) pays back in 18.3 years and gives 64,398 kr net over 25 years.

  1. 1 · Fill the roof

    30 panels (12.6 kW)

    Weak deal

    To pay after the deduction

    175,927 kr

    Saves a year
    9,613 kr
    Payback
    18.3 years
    Price incl. VAT
    205,883 kr
    Net over 25 years
    64,398 kr
    Roof area
    about 80 m²

    50% of the solar power is used at home.

  2. 2 · Mid-size

    20 panels (8.4 kW)

    Weak deal

    To pay after the deduction

    131,945 kr

    Saves a year
    7,326 kr
    Payback
    18.0 years
    Price incl. VAT
    154,412 kr
    Net over 25 years
    51,205 kr
    Roof area
    about 55 m²

    43,982 kr cheaper than the first pick, with a payback of 18.0 years.

  3. 3 · With a battery

    30 panels (12.6 kW) + 10 kWh battery

    The battery does not pay off

    To pay after the deduction

    238,235 kr

    Saves a year
    11,157 kr
    Payback
    21.4 years
    Price incl. VAT
    288,235 kr
    Net over 25 years
    17,530 kr
    Roof area
    about 80 m²

    The battery saves 1,544 kr a year but costs 62,308 kr more. It lowers the 25-year net by 46,868 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 64,398 kr · 18.3 yrs 20 panels 51,205 kr · 18.0 yrs 10 panels 21,962 kr · 20.0 yrs 30 panels + battery 17,530 kr · 21.4 yrs 20 panels + battery 10,545 kr · 21.4 yrs 10 panels + battery -17,029 kr · 25.9 yrs

Compare with north and south

The same house in Luleå and Malmö: 895 and 1,035 kWh per kW against Sundsvall’s 891.

Figure Luleå SE1 Sundsvall SE2 Malmö SE4
kWh per kW, south 895 891 1,035
Saves a year, 20 panels 5,051 kr 7,326 kr 12,129 kr
Payback, 20 panels 26.1 years 18.0 years 10.9 years
Battery paid back in 49.1 years 38.7 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 2,944 kWh more a year than north with 20 panels.

South-east and south-west are 5% below south, east and west 19%, north 39%. 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 1,416 kr more a year, costs 54,820 kr more. Paid back in 38.7 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 +2,944 kWh/yr South instead of north, 20 panels.
Fill the roof +42,436 kr net over 25 years 30 panels instead of 10. A large part of the price is fixed.
Power at midday +1,190 kr/yr Someone home 8–17 versus all away. Laundry, dishes and hot water in the daytime.
Charge the car in the daytime +732 kr/yr The car takes 863 kWh of solar a year. Charging from 17:00 gives 0 kr.
Battery +1,416 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, 54% of the solar power is sold at the spot price.

How much do solar panels give in winter?

Winter gives 5% of the year's solar. Spring and autumn bring 52% of the savings.

Summer brings 45% of the solar power and the reference house sells 43% of it at the spot price (0.46 kr on average). In winter the panels cover 5% of the house's power; every kWh you do not buy is worth 1.35 kr.

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

Winter
357 6,745 588 529 House Sun Battery Grid kWh

Solar 357 kWh · sold 0 kWh · bought 7,333 kWh · saved 939 kr

The battery stored 0 kWh of solar and 588 kWh of cheap grid power, and gave 529 kWh back when power was expensive.

Spring and autumn
2,563 551 669 6,144 289 751 House Sun Battery Grid kWh

Solar 3,783 kWh · sold 669 kWh · bought 6,433 kWh · saved 4,315 kr

The battery stored 551 kWh of solar and 289 kWh of cheap grid power, and gave 751 kWh back when power was expensive.

Summer
1,896 835 612 358 6 762 House Sun Battery Grid kWh

Solar 3,344 kWh · sold 612 kWh · bought 364 kWh · saved 3,486 kr

The battery stored 835 kWh of solar and 6 kWh of cheap grid power, and gave 762 kWh back when power was expensive.

Without a battery: 20 panels (8.4 kW).
Season Solar At home Sold Saved
Winter 357 kWh 357 kWh 0 kWh 722 kr
Spring and autumn 3,783 kWh 2,563 kWh 1,220 kWh 3,799 kr
Summer 3,344 kWh 1,896 kWh 1,447 kWh 2,805 kr

What is special about Sundsvall?

Price zone SE2, Sundsvall Elnät's grid, 62° north, 3.5 kN/m² of snow.

Sundsvall lies at 62.4° N in price zone SE2, where the average spot price is much lower than in southern Sweden. The ground snow load is 3.5 kN/m², the highest of the cities here. The reduced energy tax does not apply in Sundsvall municipality. Sundsvall Elnät charges 26.3 öre per kWh incl. VAT for transfer. In June the day is 20.0 hours long, in December 5.0 hours.

Spot price SE2
0.46 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: Sundsvall Elnät
0.21 kr/kWh + 671 kr/month Transfer fee excl. VAT, 20 A fuse. You save the variable fee on every kWh of your own. Source: Sundsvall Elnät, 2026 Säkringsabonnemang Privat, gäller till 31 december 2026 (läst 2026-11-09).
Sun height
51° / 4° At midday at midsummer and midwinter at 62.4° north. The day is 20.0 hours in June, 5.0 in December.
Snow load
3.5 kN/m² Boverket's EKS. The installer sizes the fixings for it.

Benefits of solar in Sundsvall

Nearby cities: Gävle (191 km) · Umeå (218 km) · Uppsala (282 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 Sundsvall, 27° roof, no shade, 420 W panels.
  • Weather: PVGIS for the place. Power price: SE2 spot 2025-11-09 to 2026-11-09 + markup 0.05 kr + Sundsvall Elnät 0.21 kr + energy tax 0.36 kr (Swedish Tax Agency 2026) + 25% VAT = 1.35 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.

7,484 7,092 7,093 6,094 6,095 4,540 South South-east South-west East West North
Month South South-east South-west East West North
Jan 78 62 62 31 31 19
Feb 241 206 206 133 133 74
Mar 640 576 577 435 436 216
Apr 925 875 876 744 745 492
May 1,120 1,092 1,093 999 1,000 813
Jun 1,215 1,196 1,196 1,120 1,120 975
Jul 1,183 1,159 1,159 1,072 1,072 907
Aug 945 908 908 804 803 601
Sep 636 589 588 478 477 278
Oct 353 309 309 216 216 122
Nov 109 90 90 51 51 33
Dec 38 29 29 12 12 8
Year, kWh 7,484 7,092 7,093 6,094 6,095 4,540

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 159 kr 271 kr 112 kr
Feb 516 kr 621 kr 105 kr
Mar 678 kr 698 kr 20 kr
Apr 606 kr 837 kr 231 kr
May 948 kr 1,097 kr 149 kr
Jun 1,034 kr 1,217 kr 183 kr
Jul 757 kr 981 kr 224 kr
Aug 1,014 kr 1,290 kr 276 kr
Sep 954 kr 1,070 kr 116 kr
Oct 475 kr 475 kr 0 kr
Nov 138 kr 138 kr 0 kr
Dec 47 kr 47 kr 0 kr
Year 7,326 kr 8,742 kr 1,416 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 4,397 kr 21,962 kr
20 panels (8.4 kW) 131,945 kr 7,326 kr 51,205 kr
30 panels (12.6 kW) 175,927 kr 9,613 kr 64,398 kr
30 versus 10 panels 42,436 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.

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 159 kr 159 kr 0 kr
Feb 509 kr 516 kr 7 kr
Mar 477 kr 678 kr 201 kr
Apr 470 kr 606 kr 136 kr
May 867 kr 948 kr 81 kr
Jun 916 kr 1,034 kr 118 kr
Jul 594 kr 757 kr 163 kr
Aug 797 kr 1,014 kr 217 kr
Sep 736 kr 954 kr 218 kr
Oct 426 kr 475 kr 49 kr
Nov 138 kr 138 kr 0 kr
Dec 47 kr 47 kr 0 kr
Year 6,136 kr 7,326 kr 1,190 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 863 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 159 kr 159 kr 0 kr
Feb 516 kr 516 kr 0 kr
Mar 678 kr 682 kr 4 kr
Apr 606 kr 743 kr 137 kr
May 948 kr 1,099 kr 151 kr
Jun 1,034 kr 1,176 kr 142 kr
Jul 757 kr 895 kr 138 kr
Aug 1,014 kr 1,161 kr 147 kr
Sep 954 kr 967 kr 13 kr
Oct 475 kr 475 kr 0 kr
Nov 138 kr 138 kr 0 kr
Dec 47 kr 47 kr 0 kr
Year 7,326 kr 8,058 kr 732 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 78 78 0 2,523 159 kr
Feb 241 241 0 1,961 516 kr
Mar 640 613 27 1,190 678 kr
Apr 925 455 470 347 606 kr
May 1,120 425 696 178 948 kr
Jun 1,215 578 637 226 1,034 kr
Jul 1,183 666 517 339 757 kr
Aug 945 653 293 555 1,014 kr
Sep 636 609 27 1,002 954 kr
Oct 353 353 0 1,663 475 kr
Nov 109 109 0 2,514 138 kr
Dec 38 38 0 2,789 47 kr
Year 7,483 4,818 2,667 15,287 7,326 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 SE2 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 0.98 0.21 0.27 0.53 0.44 0.17 0.44 0.52 0.38 0.34 0.32 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hour Average kr/kWh
00:00 0.36
01:00 0.35
02:00 0.34
03:00 0.34
04:00 0.35
05:00 0.39
06:00 0.45
07:00 0.54
08:00 0.60
09:00 0.57
10:00 0.53
11:00 0.49
12:00 0.46
13:00 0.44
14:00 0.44
15:00 0.48
16:00 0.53
17:00 0.58
18:00 0.59
19:00 0.55
20:00 0.49
21:00 0.46
22:00 0.41
23:00 0.36
Year 0.46

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.

0.46 0.05 0.21 0.36 0.27 Spot Markup Sundsvall Elnät Energy tax VAT
Part kr/kWh
Spot price, average 0.46
Retailer markup 0.05
Transfer fee, Sundsvall Elnät 0.21
Energy tax 0.36
VAT 25% 0.27
Total 1.35

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)

Sundsvall 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.

895 891 1,035 Luleå Sundsvall 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
Sundsvall SE2 891 7,326 kr 18.0 years 38.7 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, sundsvall, malmo)

Savings per month: 10 panels (4.2 kW)

How 4,397 kr a year spreads over the year. The summer months give the most; winter little, because the sun is low.

80 258 350 429 610 677 538 635 489 238 69 24 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Month Solar Used Sold Bought Saved
Jan 39 39 0 2,562 80 kr
Feb 121 121 0 2,082 258 kr
Mar 320 320 0 1,484 350 kr
Apr 463 379 84 424 429 kr
May 560 363 197 239 610 kr
Jun 608 471 136 332 677 kr
Jul 592 528 64 478 538 kr
Aug 473 473 0 735 635 kr
Sep 318 318 0 1,293 489 kr
Oct 176 176 0 1,840 238 kr
Nov 54 54 0 2,568 69 kr
Dec 19 19 0 2,808 24 kr
Year 3,743 3,261 481 16,845 4,397 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 21.

Price 87,963 kr yr 0 yr 5 yr 10 yr 15 yr 20 yr 25
Year Saved in total Net
1 4,397 kr -83,566 kr
5 21,985 kr -65,978 kr
10 43,970 kr -43,993 kr
15 65,955 kr -22,008 kr
20 87,940 kr -23 kr
21 92,337 kr 4,374 kr
25 109,925 kr 21,962 kr
Payback 20.0 years 21,962 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 7,326 kr a year spreads over the year. The summer months give the most; winter little, because the sun is low.

159 516 678 606 948 1,034 757 1,014 954 475 138 47 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Month Solar Used Sold Bought Saved
Jan 78 78 0 2,523 159 kr
Feb 241 241 0 1,961 516 kr
Mar 640 613 27 1,190 678 kr
Apr 925 455 470 347 606 kr
May 1,120 425 696 178 948 kr
Jun 1,215 578 637 226 1,034 kr
Jul 1,183 666 517 339 757 kr
Aug 945 653 293 555 1,014 kr
Sep 636 609 27 1,002 954 kr
Oct 353 353 0 1,663 475 kr
Nov 109 109 0 2,514 138 kr
Dec 38 38 0 2,789 47 kr
Year 7,483 4,818 2,667 15,287 7,326 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 19.

Price 131,945 kr yr 0 yr 5 yr 10 yr 15 yr 20 yr 25
Year Saved in total Net
1 7,326 kr -124,619 kr
5 36,630 kr -95,315 kr
10 73,260 kr -58,685 kr
15 109,890 kr -22,055 kr
19 139,194 kr 7,249 kr
20 146,520 kr 14,575 kr
25 183,150 kr 51,205 kr
Payback 18.0 years 51,205 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 9,613 kr a year spreads over the year. The summer months give the most; winter little, because the sun is low.

239 774 850 745 1,247 1,326 912 1,296 1,239 706 208 71 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Month Solar Used Sold Bought Saved
Jan 117 117 0 2,484 239 kr
Feb 362 362 0 1,841 774 kr
Mar 960 722 238 1,082 850 kr
Apr 1,388 487 901 316 745 kr
May 1,681 445 1,236 157 1,247 kr
Jun 1,822 614 1,209 190 1,326 kr
Jul 1,775 727 1,048 279 912 kr
Aug 1,418 725 693 482 1,296 kr
Sep 954 705 249 906 1,239 kr
Oct 529 521 8 1,495 706 kr
Nov 163 163 0 2,460 208 kr
Dec 56 56 0 2,771 71 kr
Year 11,225 5,644 5,582 14,463 9,613 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 19.

Price 175,927 kr yr 0 yr 5 yr 10 yr 15 yr 20 yr 25
Year Saved in total Net
1 9,613 kr -166,314 kr
5 48,065 kr -127,862 kr
10 96,130 kr -79,797 kr
15 144,195 kr -31,732 kr
19 182,647 kr 6,720 kr
20 192,260 kr 16,333 kr
25 240,325 kr 64,398 kr
Payback 18.3 years 64,398 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 5,231 kr a year spreads over the year. The summer months give the most; winter little, because the sun is low.

191 364 350 505 800 811 587 702 590 238 69 24 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Month Solar Used Sold Bought Saved
Jan 39 39 0 2,594 191 kr
Feb 121 121 0 2,110 364 kr
Mar 320 320 0 1,484 350 kr
Apr 463 463 0 348 505 kr
May 560 560 0 64 800 kr
Jun 608 607 0 208 811 kr
Jul 592 592 0 420 587 kr
Aug 473 473 0 758 702 kr
Sep 318 318 0 1,323 590 kr
Oct 176 176 0 1,840 238 kr
Nov 54 54 0 2,568 69 kr
Dec 19 19 0 2,808 24 kr
Year 3,743 3,742 0 16,525 5,231 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 5,231 kr -130,063 kr
5 26,155 kr -109,139 kr
10 52,310 kr -82,984 kr
15 74,295 kr -60,999 kr
20 96,280 kr -39,014 kr
25 118,265 kr -17,029 kr
Payback 25.9 years -17,029 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 8,742 kr a year spreads over the year. The summer months give the most; winter little, because the sun is low.

271 621 698 837 1,097 1,217 981 1,290 1,070 475 138 47 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Month Solar Used Sold Bought Saved
Jan 78 78 0 2,555 271 kr
Feb 241 241 0 1,989 621 kr
Mar 640 640 0 1,166 698 kr
Apr 925 752 173 83 837 kr
May 1,120 626 495 0 1,097 kr
Jun 1,215 827 388 0 1,217 kr
Jul 1,183 970 213 63 981 kr
Aug 945 935 11 301 1,290 kr
Sep 636 636 0 1,007 1,070 kr
Oct 353 353 0 1,663 475 kr
Nov 109 109 0 2,514 138 kr
Dec 38 38 0 2,789 47 kr
Year 7,483 6,205 1,280 14,130 8,742 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 24.

Price 186,765 kr yr 0 yr 5 yr 10 yr 15 yr 20 yr 25
Year Saved in total Net
1 8,742 kr -178,023 kr
5 43,710 kr -143,055 kr
10 87,420 kr -99,345 kr
15 124,050 kr -62,715 kr
20 160,680 kr -26,085 kr
24 189,984 kr 3,219 kr
25 197,310 kr 10,545 kr
Payback 21.4 years 10,545 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 11,157 kr a year spreads over the year. The summer months give the most; winter little, because the sun is low.

351 879 1,015 952 1,360 1,461 1,121 1,556 1,471 712 208 71 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Month Solar Used Sold Bought Saved
Jan 117 117 0 2,516 351 kr
Feb 362 362 0 1,869 879 kr
Mar 960 948 13 879 1,015 kr
Apr 1,388 784 604 52 952 kr
May 1,681 623 1,058 0 1,360 kr
Jun 1,822 824 999 0 1,461 kr
Jul 1,775 1,023 752 9 1,121 kr
Aug 1,418 1,028 389 207 1,556 kr
Sep 954 938 16 706 1,471 kr
Oct 529 529 0 1,488 712 kr
Nov 163 163 0 2,460 208 kr
Dec 56 56 0 2,771 71 kr
Year 11,225 7,395 3,831 12,957 11,157 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 24.

Price 238,235 kr yr 0 yr 5 yr 10 yr 15 yr 20 yr 25
Year Saved in total Net
1 11,157 kr -227,078 kr
5 55,785 kr -182,450 kr
10 111,570 kr -126,665 kr
15 159,635 kr -78,600 kr
20 207,700 kr -30,535 kr
24 246,152 kr 7,917 kr
25 255,765 kr 17,530 kr
Payback 21.4 years 17,530 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 6,929 kr a year spreads over the year. The summer months give the most; winter little, because the sun is low.

128 445 620 592 931 1,017 737 992 899 417 115 36 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Month Solar Used Sold Bought Saved
Jan 62 62 0 2,539 128 kr
Feb 206 206 0 1,997 445 kr
Mar 576 561 15 1,243 620 kr
Apr 875 442 433 360 592 kr
May 1,092 412 680 190 931 kr
Jun 1,196 555 641 248 1,017 kr
Jul 1,159 647 512 359 737 kr
Aug 908 645 264 563 992 kr
Sep 589 574 15 1,037 899 kr
Oct 309 309 0 1,707 417 kr
Nov 90 90 0 2,532 115 kr
Dec 29 29 0 2,798 36 kr
Year 7,091 4,532 2,560 15,573 6,929 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 20.

Price 131,945 kr yr 0 yr 5 yr 10 yr 15 yr 20 yr 25
Year Saved in total Net
1 6,929 kr -125,016 kr
5 34,645 kr -97,300 kr
10 69,290 kr -62,655 kr
15 103,935 kr -28,010 kr
20 138,580 kr 6,635 kr
25 173,225 kr 41,280 kr
Payback 19.0 years 41,280 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 7,006 kr a year spreads over the year. The summer months give the most; winter little, because the sun is low.

127 437 617 595 954 1,047 772 1,007 883 416 115 36 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Month Solar Used Sold Bought Saved
Jan 62 62 0 2,539 127 kr
Feb 206 206 0 1,996 437 kr
Mar 577 564 13 1,240 617 kr
Apr 876 459 416 343 595 kr
May 1,093 443 650 159 954 kr
Jun 1,196 602 594 202 1,047 kr
Jul 1,159 688 471 317 772 kr
Aug 908 660 248 547 1,007 kr
Sep 588 571 18 1,041 883 kr
Oct 309 309 0 1,707 416 kr
Nov 90 90 0 2,533 115 kr
Dec 29 29 0 2,798 36 kr
Year 7,093 4,683 2,410 15,422 7,006 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 19.

Price 131,945 kr yr 0 yr 5 yr 10 yr 15 yr 20 yr 25
Year Saved in total Net
1 7,006 kr -124,939 kr
5 35,030 kr -96,915 kr
10 70,060 kr -61,885 kr
15 105,090 kr -26,855 kr
19 133,114 kr 1,169 kr
20 140,120 kr 8,175 kr
25 175,150 kr 43,205 kr
Payback 18.8 years 43,205 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 6,043 kr a year spreads over the year. The summer months give the most; winter little, because the sun is low.

63 289 480 562 892 985 716 938 746 292 65 15 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Month Solar Used Sold Bought Saved
Jan 31 31 0 2,570 63 kr
Feb 133 133 0 2,070 289 kr
Mar 435 435 0 1,369 480 kr
Apr 744 434 310 368 562 kr
May 999 409 590 193 892 kr
Jun 1,120 546 574 257 985 kr
Jul 1,072 638 435 368 716 kr
Aug 804 629 175 578 938 kr
Sep 478 477 1 1,135 746 kr
Oct 216 216 0 1,799 292 kr
Nov 51 51 0 2,572 65 kr
Dec 12 12 0 2,815 15 kr
Year 6,095 4,011 2,085 16,094 6,043 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 22.

Price 131,945 kr yr 0 yr 5 yr 10 yr 15 yr 20 yr 25
Year Saved in total Net
1 6,043 kr -125,902 kr
5 30,215 kr -101,730 kr
10 60,430 kr -71,515 kr
15 90,645 kr -41,300 kr
20 120,860 kr -11,085 kr
22 132,946 kr 1,001 kr
25 151,075 kr 19,130 kr
Payback 21.8 years 19,130 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 6,167 kr a year spreads over the year. The summer months give the most; winter little, because the sun is low.

63 280 474 567 925 1,034 769 957 727 291 65 15 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Month Solar Used Sold Bought Saved
Jan 31 31 0 2,570 63 kr
Feb 133 133 0 2,070 280 kr
Mar 436 436 0 1,368 474 kr
Apr 745 459 286 343 567 kr
May 1,000 452 548 151 925 kr
Jun 1,120 616 504 187 1,034 kr
Jul 1,072 700 371 305 769 kr
Aug 803 650 153 557 957 kr
Sep 477 475 2 1,136 727 kr
Oct 216 216 0 1,800 291 kr
Nov 51 51 0 2,572 65 kr
Dec 12 12 0 2,815 15 kr
Year 6,096 4,231 1,864 15,874 6,167 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 22.

Price 131,945 kr yr 0 yr 5 yr 10 yr 15 yr 20 yr 25
Year Saved in total Net
1 6,167 kr -125,778 kr
5 30,835 kr -101,110 kr
10 61,670 kr -70,275 kr
15 92,505 kr -39,440 kr
20 123,340 kr -8,605 kr
22 135,674 kr 3,729 kr
25 154,175 kr 22,230 kr
Payback 21.4 years 22,230 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 4,974 kr a year spreads over the year. The summer months give the most; winter little, because the sun is low.

40 159 237 492 839 993 750 815 432 165 42 10 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Month Solar Used Sold Bought Saved
Jan 19 19 0 2,582 40 kr
Feb 74 74 0 2,128 159 kr
Mar 216 216 0 1,588 237 kr
Apr 492 432 60 370 492 kr
May 813 447 366 156 839 kr
Jun 975 623 351 180 993 kr
Jul 907 711 196 294 750 kr
Aug 601 592 10 616 815 kr
Sep 278 278 0 1,333 432 kr
Oct 122 122 0 1,893 165 kr
Nov 33 33 0 2,589 42 kr
Dec 8 8 0 2,819 10 kr
Year 4,538 3,555 983 16,548 4,974 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 4,974 kr -126,971 kr
5 24,870 kr -107,075 kr
10 49,740 kr -82,205 kr
15 74,610 kr -57,335 kr
20 99,480 kr -32,465 kr
25 124,350 kr -7,595 kr
Payback 26.5 years -7,595 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 Sundsvall?

Slowly. The best pick, 30 panels (12.6 kW) facing south, costs 175,927 kr after the deduction and pays back in 18.3 years: net 64,398 kr over 25 years. East, west and north take longer. Profitable only if you use most of it yourself.

Does a battery pay off?

Not for your wallet. 10 kWh saves 1,416 kr more a year and costs 54,820 kr more; paid back in 38.7 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 5% of the year's solar and cover 5% of the house's power. Summer gives 45%.

Does a north-facing roof work?

It gives 61% of a south roof; the payback is 26.5 years. With another roof face or a garage, use that.

What does price zone SE2 mean for my solar power?

The SE2 spot price averaged 0.46 kr/kWh over the last year. A kWh you use yourself is worth 1.35 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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