Solar calculator Canton of Aargau

What a solar system brings in the Canton of Aargau

Worked out with the median 2026 household tariff in the Canton of Aargau: 30.2 ct./kWh incl. VAT, 0.3 ct. above the median for Switzerland. For your municipality the calculator uses its own tariff.

Single-family house, existing building, south roof, without battery
Household	Consumption per year	System	Price after subsidy and tax deduction	Saving in year 1	Payback
4 persons	4,500 kWh	6.8 kWp	CHF 11,400–15,500	CHF 760–790	15–21 years
4 persons with heat pump	9,500 kWh	14.3 kWp	CHF 19,900–26,300	CHF 1,750–1,790	11–16 years
4 persons with heat pump and electric car	12,000 kWh	15.8 kWp	CHF 21,400–28,500	CHF 2,190–2,240	10–13 years

Assumptions: roof with room for about 16 kWp, 1,000 kWh per kWp and year, feed-in at 8 ct./kWh, one-off payment from Pronovo (CHF 360/kWp), tax deduction at a marginal rate of 25 %. Prices including installation and VAT. Heat pump +5,000 kWh, electric car +2,500 kWh a year.

Work it out for your address

Solar power in the Canton of Aargau in figures

Electricity price 202630.2 ct./kWhHousehold (H4) incl. VAT, median of 196 municipalities
Range across municipalities21.7–42.9 ct./kWh0.3 ct. above the median for Switzerland
Solar potential of the roofs5,421 GWha year on the suitable roofs (SFOE)
Used today13.1 %741.9 MWp of solar installed

Sources: ElCom, tariffs 2026; Swiss Federal Office of Energy SFOE, solar potential of Swiss municipalities; Energie Reporter (SwissEnergy, CC BY 4.0).

Electricity price and saving by municipality in the Canton of Aargau

The more expensive grid power is, the more the solar system saves. The table works out the example of 4 persons with the tariff of each municipality, most expensive power first.

Find municipality

Household H4 incl. VAT, ElCom 2026; saving in CHF in year 1, payback in years
Municipality	Grid operator	ct./kWh	Saving per year	Payback
Murgenthal	Gemeinde Murgenthal, Elektrizitätsversorgung	42.9	960–980	12–17
Auw	Elektra Genossenschaft Auw	37.5	870–900	13–19
Zufikon	Einwohnergemeinde Zufikon, Elektrizitätsversorgung	36.5	860–890	13–19
Muhen	Einwohnergemeinde Muhen, Elektrizitaetsversorgung	34.9	830–860	14–20
Strengelbach	StWZ Energie AG	34.3	830–850	14–20
Zofingen	StWZ Energie AG	34.1	820–850	14–20
Geltwil	Elektrizitätsversorgung Geltwil	33.9	820–850	14–20
Niederlenz	RTB Regionale Technische Betriebe	33.7	820–840	14–20
Teufenthal (AG)	Gemeinde Teufenthal, Elektrizitätsversorgung	33.6	810–840	14–20
Jonen	Elektrizitätsgenossenschaft Jonen	33.5	810–840	14–20
Hunzenschwil	Energie Hunzenschwil AG (ENH)	33.4	810–840	14–20
Oberentfelden	Gemeinde Oberentfelden, Elektrizitätsversorgung	33.4	810–840	14–20
Möriken-Wildegg	RTB Regionale Technische Betriebe	33.2	810–840	14–20
Rupperswil	Gemeinde Rupperswil, Elektrizitätsversorgung	32.8	800–830	14–20
Villmergen	Gemeindewerke Villmergen	32.4	800–820	14–20
Mellikon	Elektragenossenschaft Mellikon	32.3	790–820	14–21
Obersiggenthal	Elektrizitäts-Genossenschaft Siggenthal	32.2	790–820	14–21
Würenlos	Technische Betriebe Würenlos	32.2	790–820	14–21
Gebenstorf	EV Gebenstorf AG	31.9	790–820	14–21
Siglistorf	Elektra-Genossenschaft Siglistorf-Wislikofen-Mellstorf	31.8	790–810	15–21
Büttikon	Gemeinde Büttikon, Abt. Elektrizitätsversorgung	31.7	790–810	15–21
Aarburg	tba energie ag	31.6	780–810	15–21
Laufenburg	Einwohnergemeinde Laufenburg, Städt. Elektrizitätsversorung	31.5	780–810	15–21
Egliswil	Technische Betriebe Seon AG	31.3	780–810	15–21
Seon	Technische Betriebe Seon AG	31.3	780–810	15–21
Suhr	TBS Strom AG	31.2	780–810	15–21
Villigen	Einwohnergemeinde Villigen, Elektrizitätsversorgung	31.0	770–800	15–21
Wohlen (AG)	IB Wohlen AG	31.0	770–800	15–21
Beinwil am See	EWS Energie AG	30.5	770–790	15–21
Bellikon	Gemeinde Bellikon	30.4	770–790	15–21
Kallern	AEW Energie AG	30.3	760–790	15–21
Klingnau	AEW Energie AG	30.3	760–790	15–21
Mandach	Elektra Mettauertal und Umgebung Genossenschaft (EMU)	30.3	760–790	15–21
Mettauertal	Elektra Mettauertal und Umgebung Genossenschaft (EMU)	30.3	760–790	15–21
Mülligen	Elektrizitäts - Genossenschaft Mülligen	30.3	760–790	15–21
Schwaderloch	Elektra Mettauertal und Umgebung Genossenschaft (EMU)	30.3	760–790	15–21
Abtwil	ELEKTRA Genossenschaft Abtwil	30.2	760–790	15–21
Ammerswil	AEW Energie AG	30.2	760–790	15–21
Auenstein	AEW Energie AG	30.2	760–790	15–21
Bergdietikon	AEW Energie AG	30.2	760–790	15–21
Besenbüren	Gemeinde Besenbüren, Elektrizitätsversorgung	30.2	760–790	15–21
Birrhard	AEW Energie AG	30.2	760–790	15–21
Boniswil	AEW Energie AG	30.2	760–790	15–21
Böttstein	AEW Energie AG	30.2	760–790	15–21
Bözberg	AEW Energie AG	30.2	760–790	15–21
Brittnau	AEW Energie AG	30.2	760–790	15–21
Brunegg	AEW Energie AG	30.2	760–790	15–21
Dottikon	AEW Energie AG	30.2	760–790	15–21
Dürrenäsch	AEW Energie AG	30.2	760–790	15–21
Eggenwil	AEW Energie AG	30.2	760–790	15–21
Eiken	AEW Energie AG	30.2	760–790	15–21
Endingen	AEW Energie AG	30.2	760–790	15–21
Fahrwangen	AEW Energie AG	30.2	760–790	15–21
Fisibach	AEW Energie AG	30.2	760–790	15–21
Frick	AEW Energie AG	30.2	760–790	15–21
Full-Reuenthal	AEW Energie AG	30.2	760–790	15–21
Gansingen	AEW Energie AG	30.2	760–790	15–21
Hägglingen	AEW Energie AG	30.2	760–790	15–21
Hallwil	AEW Energie AG	30.2	760–790	15–21
Hellikon	AEW Energie AG	30.2	760–790	15–21
Hendschiken	AEW Energie AG	30.2	760–790	15–21
Herznach-Ueken	AEW Energie AG	30.2	760–790	15–21
Holderbank (AG)	AEW Energie AG	30.2	760–790	15–21
Kaiseraugst	AEW Energie AG	30.2	760–790	15–21
Koblenz	AEW Energie AG	30.2	760–790	15–21
Leimbach (AG)	AEW Energie AG	30.2	760–790	15–21
Lengnau (AG)	AEW Energie AG	30.2	760–790	15–21
Leuggern	AEW Energie AG	30.2	760–790	15–21
Magden	AEW Energie AG	30.2	760–790	15–21
Mägenwil	AEW Energie AG	30.2	760–790	15–21
Meisterschwanden	AEW Energie AG	30.2	760–790	15–21
Möhlin	AEW Energie AG	30.2	760–790	15–21
Mumpf	AEW Energie AG	30.2	760–790	15–21
Münchwilen (AG)	AEW Energie AG	30.2	760–790	15–21
Niederrohrdorf	AEW Energie AG	30.2	760–790	15–21
Oberkulm	AEW Energie AG	30.2	760–790	15–21
Obermumpf	AEW Energie AG	30.2	760–790	15–21
Oeschgen	AEW Energie AG	30.2	760–790	15–21
Rheinfelden	AEW Energie AG	30.2	760–790	15–21
Safenwil	AEW Energie AG	30.2	760–790	15–21
Sarmenstorf	AEW Energie AG	30.2	760–790	15–21
Schinznach	AEW Energie AG	30.2	760–790	15–21
Schlossrued	AEW Energie AG	30.2	760–790	15–21
Schmiedrued	AEW Energie AG	30.2	760–790	15–21
Schneisingen	AEW Energie AG	30.2	760–790	15–21
Seengen	AEW Energie AG	30.2	760–790	15–21
Stein (AG)	AEW Energie AG	30.2	760–790	15–21
Stetten (AG)	AEW Energie AG	30.2	760–790	15–21
Tägerig	AEW Energie AG	30.2	760–790	15–21
Tegerfelden	AEW Energie AG	30.2	760–790	15–21
Uerkheim	AEW Energie AG	30.2	760–790	15–21
Uezwil	AEW Energie AG	30.2	760–790	15–21
Unterkulm	AEW Energie AG	30.2	760–790	15–21
Untersiggenthal	AEW Energie AG	30.2	760–790	15–21
Veltheim (AG)	AEW Energie AG	30.2	760–790	15–21
Wallbach	AEW Energie AG	30.2	760–790	15–21
Waltenschwil	AEW Energie AG	30.2	760–790	15–21
Wegenstetten	AEW Energie AG	30.2	760–790	15–21
Zurzach	AEW Energie AG	30.2	760–790	15–21
Zuzgen	AEW Energie AG	30.2	760–790	15–21
Oberlunkhofen	Elektra Genossenschaft Oberlunkhofen	30.1	760–790	15–21
Döttingen	AEW Energie AG	30.0	760–790	15–22
Gontenschwil	EWS Energie AG	30.0	760–790	15–22
Leutwil	AEW Energie AG	30.0	760–790	15–22
Menziken	EWS Energie AG	30.0	760–790	15–22
Mönthal	AEW Energie AG	30.0	760–790	15–22
Othmarsingen	AEW Energie AG	30.0	760–790	15–22
Reinach (AG)	EWS Energie AG	30.0	760–790	15–22
Remigen	AEW Energie AG	30.0	760–790	15–22
Schupfart	AEW Energie AG	30.0	760–790	15–22
Zetzwil	EWS Energie AG	30.0	760–790	15–22
Zeiningen	Einwohnergemeinde Zeiningen, Elektrizitätsversorgung	29.9	760–790	15–22
Aristau	Elektrizitätsgenossenschaft Aristau	29.7	760–780	15–22
Rothrist	EW Rothrist AG	29.7	760–780	15–22
Vordemwald	EW Rothrist AG	29.7	760–780	15–22
Schöftland	Gemeinde Schöftland, Elektrizitätsversorgung	29.6	750–780	15–22
Baden	Regionalwerke AG Baden	29.5	750–780	15–22
Bettwil	Einwohnergemeinde Bettwil, Elektrizitätsversorgung	29.5	750–780	15–22
Oberrohrdorf	Genossenschaft ELEKTRA Oberrohrdorf	29.5	750–780	15–22
Riniken	Elektrizitäts-Genossenschaft Riniken (EGR)	29.5	750–780	15–22
Aarau	Eniwa AG	29.4	750–780	15–22
Biberstein	Eniwa AG	29.4	750–780	15–22
Birrwil	EWS Energie AG	29.4	750–780	15–22
Bottenwil	Eniwa AG	29.4	750–780	15–22
Buchs (AG)	Eniwa AG	29.4	750–780	15–22
Densbüren	Eniwa AG	29.4	750–780	15–22
Ennetbaden	Regionalwerke AG Baden	29.4	750–780	15–22
Erlinsbach (AG)	Eniwa AG	29.4	750–780	15–22
Hirschthal	Eniwa AG	29.4	750–780	15–22
Holziken	Eniwa AG	29.4	750–780	15–22
Killwangen	Gemeinde Killwangen, Elektrizitätsversorgung	29.4	750–780	15–22
Kirchleerau	Eniwa AG	29.4	750–780	15–22
Küttigen	Eniwa AG	29.4	750–780	15–22
Moosleerau	Eniwa AG	29.4	750–780	15–22
Reitnau	Eniwa AG	29.4	750–780	15–22
Staffelbach	Eniwa AG	29.4	750–780	15–22
Unterentfelden	Eniwa AG	29.4	750–780	15–22
Wiliberg	Eniwa AG	29.4	750–780	15–22
Gipf-Oberfrick	Energie Oberes Fricktal AG	29.1	750–770	15–22
Gränichen	TB Gränichen Energie AG	29.1	750–770	15–22
Oberhof	Energie Oberes Fricktal AG	29.1	750–770	15–22
Wittnau	Energie Oberes Fricktal AG	29.1	750–770	15–22
Wölflinswil	Energie Oberes Fricktal AG	29.1	750–770	15–22
Birr	IBB Strom AG	29.0	740–770	15–22
Böztal	IBB Strom AG	29.0	740–770	15–22
Brugg	IBB Strom AG	29.0	740–770	15–22
Habsburg	IBB Strom AG	29.0	740–770	15–22
Hausen (AG)	IBB Strom AG	29.0	740–770	15–22
Lupfig	IBB Strom AG	29.0	740–770	15–22
Rüfenach	IBB Strom AG	29.0	740–770	15–22
Wohlenschwil	Einwohnergemeinde Wohlenschwil, Elektrizitätsversorgung	29.0	740–770	15–22
Buttwil	Energie Freiamt AG	28.9	740–770	15–22
Dietwil	Energie Freiamt AG	28.9	740–770	15–22
Muri (AG)	Energie Freiamt AG	28.9	740–770	15–22
Mühlau	Elektrizitätsgenossenschaft Mühlau	28.8	740–770	15–22
Staufen	Gemeinde Staufen, Elektrizitätswerk	28.8	740–770	15–22
Lenzburg	SWL Energie AG	28.7	740–770	15–22
Oberwil-Lieli	Gemeinde Oberwil-Lieli, Elektrizitätsversorgung	28.7	740–770	15–22
Wettingen	Energie Wettingen AG	28.6	740–770	15–22
Kölliken	EWK Energie AG	28.5	740–760	16–22
Remetschwil	genossenschaft elektra busslingen	28.5	740–760	16–22
Windisch	Einwohnergemeinde Windisch, Elektrizitätsversorgung	28.4	740–760	16–22
Zeihen	Einwohnergemeinde Zeihen, Elektra, Elektrizitätsversorgung	28.4	740–760	16–22
Neuenhof	Elektrizität Wasser Neuenhof ewn	28.3	730–760	16–22
Oftringen	EW Oftringen AG	28.2	730–760	16–22
Rottenschwil	Elektra-Genossenschaft Rottenschwil-Werd	28.1	730–760	16–22
Rudolfstetten-Friedlisb.	Elektra Rudolfstetten-Friedlisberg AG	28.1	730–760	16–22
Oberrüti	Elektro-Genossenschaft Oberrüti	28.0	730–760	16–22
Berikon	Gemeinde Berikon, Elektrizitätsversorgung	27.9	730–760	16–23
Unterlunkhofen	Einwohnergemeinde Unterlunkhofen, Elektrizitätsversorgung	27.9	730–760	16–23
Boswil	Elektrizitäts-Genossenschaft Boswil-Bünzen	27.7	720–750	16–23
Bünzen	Elektrizitäts-Genossenschaft Boswil-Bünzen	27.7	720–750	16–23
Dintikon	Einwohnergemeinde Dintikon, Elektrizitätswerk	27.6	720–750	16–23
Schafisheim	Einwohnergemeinde Schafisheim, Elektrizitätsversorgung	27.6	720–750	16–23
Arni (AG)	Elektra Genossenschaft Arni-Islisberg	27.5	720–750	16–23
Islisberg	Elektra Genossenschaft Arni-Islisberg	27.5	720–750	16–23
Thalheim (AG)	Gemeinde Thalheim, Elektrizitätsversorgung	27.5	720–750	16–23
Würenlingen	Einwohnergemeinde Würenlingen, Elektrizitätsversorgung	27.3	720–750	16–23
Kaisten	Gemeinde Kaisten, Elektrizitätsversorgung	27.2	720–740	16–23
Fislisbach	Genossenschaft ELEKTRA Fislisbach	27.0	710–740	16–23
Bremgarten (AG)	Elektrizitätsgenossenschaft Hermetschwil-Staffeln	26.9	710–740	16–23
Ehrendingen	Genossenschaft Elektra Ehrendingen	26.8	710–740	16–23
Freienwil	Genossenschaft Elektra Ehrendingen	26.8	710–740	16–23
Mellingen	Gemeinde Mellingen, Elektrizitätsversorgung	26.6	710–740	16–23
Fischbach-Göslikon	Elektra-Genossenschaft, Fischbach-Göslikon	26.5	710–730	16–23
Spreitenbach	Gemeinde Spreitenbach, Elektrizitätsversorgung	26.3	700–730	16–23
Birmenstorf (AG)	Einwohnergemeinde Birmenstorf AG, Elektrizitätsversorgung	26.2	700–730	16–23
Leibstadt	Elektra Genossenschaft Leibstadt	26.2	700–730	16–23
Olsberg	ELEKTRAGENOSSENSCHAFT OLSBERG	26.2	700–730	16–23
Merenschwand	Elektrizitäts-Genossenschaft Merenschwand	25.9	700–720	16–24
Niederwil (AG)	Einwohner- & Ortsbürgergemeinde Niederwil AG, Elektrizitätsversorgung	25.6	690–720	17–24
Künten	Elektra-Genossenschaft Künten	25.4	690–720	17–24
Sins	Elektrizitätsgenossenschaft Sins	25.2	690–710	17–24
Beinwil (Freiamt)	Elektrizitätsgenossenschaft Beinwil/Freiamt	25.1	680–710	17–24
Widen	Elektra Widen Betriebs AG	25.1	680–710	17–24
Sisseln	Einwohnergemeinde Sisseln, Strom	21.7	630–660	18–26

Solar calculator in the Canton of Aargau

Frequently asked questions

Questions about the solar calculator

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044 980 08 80 info@solarinnovation.ch

Is the site visit really free?

Yes. The visit and the quote cost you nothing and commit you to nothing. You only decide once you hold the binding quote in your hands.

What does a solar system cost in the Canton of Aargau?

For a single-family house of 4 persons the calculator proposes about 6.8 kWp. That costs CHF 17,700–23,200 including installation and VAT. After the one-off payment and the tax deduction, CHF 11,400–15,500 remain. For your roof, the solar calculator above works it out with your address.

Is a solar system worth it in the Canton of Aargau?

With the median electricity price in the Canton of Aargau (30.2 ct./kWh incl. VAT) this system saves CHF 760–790 in the first year and has paid for itself after 15–21 years. With a heat pump and an electric car it is CHF 2,190–2,240 and 10–13 years, because you use more of the solar power yourself.

In which municipality in the Canton of Aargau does solar pay most?

Where grid power is most expensive: Murgenthal (42.9 ct.), Auw (37.5 ct.), Zufikon (36.5 ct.). It is cheapest in Sisseln (21.7 ct.). The more expensive grid power is, the more every kilowatt hour you use yourself saves.

Does the Canton of Aargau pay subsidies for photovoltaics?

The Canton of Aargau does not subsidise the photovoltaic system itself. The 2026 subsidy programme includes a photovoltaic bonus if you insulate the roof or facade at the same time. You apply for the bonus before building work starts.

Can I deduct a solar system from my taxes in the Canton of Aargau?

According to the tax office's information sheet, energy-saving measures are deductible if they are carried out at least five years after the building was completed. For a new build, you should clarify this with the tax office beforehand.

How accurate is the solar calculator?

It gives guide values, not a quote. It uses the federal roof data (sonnendach.ch), the electricity price of your municipality (ElCom 2026) and the one-off payment from Pronovo. What it cannot see: roof condition, shade from trees, electrical system, access. That is why we check these during a free site visit and send you a binding quote within 72 hours.

Where does the roof data come from?

From the Swiss Federal Office of Energy (sonnendach.ch). It records area, pitch, orientation and solar irradiation of every roof face of every building in Switzerland. The aerial image is from swisstopo. We count about 70 % of the area as panel area; the rest is needed for edges, gaps and roof windows.

Which subsidies are included?

The federal one-off payment (Pronovo): CHF 360 per kWp for systems below 30 kWp, proportionally less above. Plus the tax deduction for existing private buildings, calculated with a marginal tax rate of 25 %. Cantonal and municipal grants are not included; we check them during the site visit.

Is a battery worth it?

A battery raises self-consumption but costs more. Whether it pays depends on the feed-in tariff and your consumption. That is why the calculator shows both options side by side.

Why do you need my contact details?

We send you the results by e-mail, and a project manager looks at the figures. We do not pass on your details. We are not a referral portal; we plan and build the systems ourselves.

Which regions do you cover?

All of German-speaking Switzerland. We build most often in the cantons of Zurich, St. Gallen, Schwyz and Aargau. Our locations are in Zumikon ZH and Lachen SZ.

Solar calculator Canton of Aargau: What can your roof do?

Have the figures checked on site, free of charge.

What a solar system brings in the Canton of Aargau

Solar power in the Canton of Aargau in figures

Electricity price and saving by municipality in the Canton of Aargau

Solar calculator in the Canton of Aargau

Solar calculator for places in the Canton of Aargau

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Questions about the solar calculator