Home battery in the Canton of Aargau
Battery storage in the Canton of AargauStorage in Aargau.
Many roof renovations are due in Aargau. We check whether a battery suits your solar system and what it brings you.
- Site visit: free and with no obligation
- Binding quote within 72 hours
- Calculated with the electricity price in the Canton of Aargau: 27.7 ct./kWh
Prefer to talk?044 980 08 80
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- documented reference systems
- 29
- output of these systems
- 718.1kWp
- to a binding quote
- 72h
- is what the site visit costs
- 0CHF
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Data in the Canton of Aargau
Solar power in the Canton of Aargau in figures
- Household electricity price 2026
- 27.7ct./kWh
- Median of the grid operators, excluding VAT. same as the Swiss median (27.7 ct.).
- Solar power per person per year
- 896kWh
- Switzerland: 866 kWh.
- Solar potential of the roofs per year
- 5,421GWh
- Used so far: 13.1% (Switzerland 12.8%).
- of passenger cars are electric
- 5.5%
- Switzerland: 5.5%. An EV charger turns solar power into driving power.
- of residential buildings already use a heat pump
- 31.4%
- Switzerland: 26.2%.
- of residential buildings heat with oil or gas
- 51.1%
- Switzerland: 49.8%. A heat pump raises the self-consumption of your solar power.
Example: 10 kWp system with battery storage in the Canton of Aargau
- Self-consumed without battery (30%)3,000 kWh
- Self-consumed with battery (60%)6,000 kWh
- Additionally self-consumed3,000 kWh
- Value at the grid pricearound CHF 830 a year
Guide value, not a quote. Assumptions: 10,000 kWh yield, battery around 10 kWh, electricity price 27.7 ct./kWh excluding VAT. Deduct the feed-in tariff you would otherwise have received for this power. Whether a battery pays off, we calculate with your consumption. More in our guide How much does a solar system cost?
Calculate a battery for meSources: ElCom (electricity prices 2026), Swiss Federal Office of Energy (solar potential), Energie Reporter by geoimpact on behalf of SwissEnergy (solar power, electric cars; CC BY 4.0), Federal Statistical Office (Register of Buildings and Dwellings), MeteoSwiss (hail climate), Energy Promotion Ordinance (one-off payment).
Battery storage in the Canton of Aargau
What applies to your battery storage in the Canton of Aargau
Subsidies for battery storage in the Canton of Aargau
The 2026 subsidy programme of the Canton of Aargau supports insulation, replacing your heating system and a bonus for photovoltaics on insulated roofs. We find no subsidy for battery storage in the programme conditions. Whether your commune or energy supplier supports batteries depends on where you live and keeps changing. We check this when preparing your quote and submit any possible applications before work starts.
Registration and fire protection
The battery is registered with the grid operator. In Aargau, AEW Energie supplies 70 communes. Others include Eniwa, IBB Strom and EWS Energie. The installation must be carried out by a licensed electrical installation company. The 2015 fire protection regulations of the VKF (Swiss association of cantonal fire insurers) do not explicitly cover battery storage. The state of the art is the paper on the VKF fire protection guideline for solar systems, which also clarifies where battery storage may be installed.
When a battery pays off in the Canton of Aargau
The cantonal median electricity price in Aargau is level with the Swiss median. A battery mainly pays off if you use little electricity during the day and a lot in the evening. This is often the case for families with a heat pump or an electric car. Aargau has many older single-family homes. When a roof is renovated, we plan the solar system and the battery together, so the electrical distribution only has to be adapted once. The feed-in tariff depends on the utility. In the quote we calculate with the tariff of your grid operator.
We size the battery with you based on your evening and night consumption. For single-family homes this is usually 8 to 15 kWh of usable capacity. We read your electricity bills and, if you have one, the data from your smart meter. A heat pump and an electric car are included in the sizing, so the battery is neither too small nor empty in winter.
Grid operators
Electricity prices 2026 in the Canton of Aargau
What power from the grid costs is set by your grid operator. The more expensive grid power is, the more every kilowatt hour you use from your own roof is worth.Swiss median: 27.7 ct./kWh.
| Commune | Grid operator | ct./kWh |
|---|---|---|
| Baden | Regionalwerke AG Baden | 27.3 |
| Aarau | Eniwa AG | 27.2 |
| Wettingen | Energie Wettingen AG | 26.5 |
| Wohlen | IB Wohlen AG | 28.7 |
| Oftringen | EW Oftringen AG | 26.1 |
| Rheinfelden | AEW Energie AG | 27.9 |
| Brugg | IBB Strom AG | 26.8 |
| Zofingen | StWZ Energie AG | 31.5 |
| Spreitenbach | Gemeinde Spreitenbach, Elektrizitätsversorgung | 24.3 |
| Suhr | TBS Strom AG | 28.8 |
| Möhlin | AEW Energie AG | 27.9 |
| Lenzburg | SWL Energie AG | 26.6 |
| Rothrist | EW Rothrist AG | 27.5 |
| Reinach | EWS Energie AG | 27.7 |
| Neuenhof | Elektrizität Wasser Neuenhof ewn | 26.2 |
Source: ElCom, Federal Electricity Commission, tariffs 2026.
The free site visit
One appointment at your home. Then you know everything.
A project manager from our team visits you and checks three things. No sales show, no obligation. Afterwards you receive a binding quote with yield, subsidies and payback.
01Roof
Area, orientation, pitch, condition of the roof covering and shading.
02Electrical system
Grid connection, distribution board and space for inverter and battery.
03Your consumption
Electricity bill, car, heating, plans. From this we calculate yield and subsidies.
How your project runs
Request
Tell us briefly about your building and your goal. Online or by phone.
Site visit
We check your roof, electrical system and consumption at your home. Free of charge.
Quote in 72 hours
Binding and transparent, with yield, subsidies and payback.
Permit and subsidies
We handle the notification procedure, the grid operator and Pronovo.
Installation and commissioning
Our own installers, a fixed date, final inspection with you on the roof.
Step 1 takes one minute. We take care of the rest.
Google reviews
What our customers say about us.
5.0
Unabridged and unedited, straight from our Google profile. The reviews are in German.
All reviews on GoogleWir sind sehr zufrieden mit unserer Wallbox für unser E-Auto.
Cemil B. · October 2026
Wir können Solarinnovation.ch und insbesondere Jordan für seine kompetente Beratung und perfekte Umsetzung als zuverlässigen Partner für nachhaltige Energielösungen aus einer Hand von Herzen weiterempfehlen. Er hat uns mit seinem umfangreichen Fachwissen von der ersten Beratung bis und mit der Umsetzung kompetent begleitet. Er hat alle Fragen immer verständlich erklärt. Wir sind mit der Indach-Solaranlage, kombiniert mit einem Speicher sehr zufrieden.
Daniel · August 2026
Die SolarInnovation GmbH hat mich durch ihre sehr flexible und kompetente Beratung und Arbeitsausführung sehr überzeugt!
Frederic L. · September 2025
Eine sehr seriöses Firma. Danke Aulson, Danke Jorden.
Alex I. · August 2025
Top Service und super Beratung! Unsere Solaranlage am linken Zürichseeufer läuft perfekt, produziert mehr Strom als erwartet und sieht auch noch toll aus. Absolut empfehlenswert!
Marc W. · August 2025
Built near you.
29 projects, 718.1 kWp in total. From Zumikon and Lachen we work all over German-speaking Switzerland, most often in the cantons of Zurich, St. Gallen, Schwyz and Aargau.
Canton of Zurich
- Rüti41.1 kWp
- Zürich26.6 kWp
- Zürich6.8 kWp
- Zürich10.9 kWp
- Gossau ZH7.7 kWp
- Zollikerberg17.7 kWp
- Ebmatingen16.9 kWp
- Ebmatingen17 kWp
- Zürich7.5 kWp
- Maur6.9 kWp
- Herrliberg14.8 kWp
- Herrliberg12 kWp
- Meilen17.2 kWp
- Bachs10.2 kWp
Canton of St. Gallen
Canton of Schwyz
Canton of Aargau
- Staffelbach16 kWp
- Reinach AG20.7 kWp
- Berikon19.8 kWp
- Oberkulm20.7 kWp
Canton of Lucerne
Canton of Zug
Frequently asked questions
Before you get in touch.
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.
Does the Canton of Aargau subsidise battery storage?
We find no subsidy for battery storage in the 2026 cantonal programme. Communes and energy suppliers in Aargau may run their own programmes. We check this for your address.
Which grid operator receives the storage notification in Aargau?
The grid operator of your commune. In 70 communes this is AEW Energie, elsewhere it is, for example, Eniwa or IBB Strom. We register the battery and the solar system together.
Can I add a battery to an existing solar system in Aargau?
Yes, if the inverter is suitable. At the site visit we check the system and the location for the battery, and tell you whether an add-on or an inverter replacement is needed.
How large does the battery storage need to be?
As a rule of thumb, about 1 kWh of storage capacity per 1 kWp of solar output, usually 8 to 15 kWh for single-family homes. What matters is your consumption in the evening and at night. We read it from your electricity bills and calculate the right size.
Is a battery financially worthwhile?
That depends on the electricity price, the feed-in tariff of your grid operator and the price of the battery. The lower the feed-in tariff, the more each kilowatt-hour you use yourself is worth. In the quote, we calculate both options, with and without a battery, side by side.
How long does a battery last?
Modern lithium iron phosphate batteries are designed for several thousand charge cycles, which often means 10 to 15 years or more. Warranty terms differ by manufacturer. We state them in the quote.
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.
From one company
Goes well with
The first step
We come to you. Free of charge.
We check your roof, electrical system and consumption. Afterwards you know what is possible on your roof, what it costs and which subsidies you receive. The binding quote follows within 72 hours.
- Free and with no obligation
- Quote within 72 hours
- Subsidies pre-financed on request
