Fotonka
Helps you get the most from your solar panels.
CZK 2,899 including VAT per MWh
Average spot price over the last 12 months.
Electromobility: charge at home for less, the smart way
How much will it cost to charge your electric car? With Fixovka and the D27d tariff, charging at night can cost as little as around CZK 50 per 100 km. If you have solar panels, it can be even cheaper. Calculate how much you could save.
- from CZK 50per 100 km when charging at home at night
- from CZK 200for 60 kWh, around 350 km
- 2029fixed electricity price
How much will charging cost me?
Your charging costs (including VAT)
– CZK / month
- per 100 km
- –
- per year
- –
- of which at home at night
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- of which from solar panels
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- of which at public charging stations
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An electric car is only as economical as the way you charge it.
The cheapest electricity comes from your own roof, followed by charging during the cheapest hours and at home at night at a fixed price. Public rapid charging is the most convenient option on the road, but also the most expensive.
Where to charge – from the cheapest to the most expensive
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Fotonka
From your own roof
Surplus solar energy goes straight into your car’s battery. The cheapest kilowatt-hour is the one you generate at home – and you can sell any energy your car does not use.
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Fotonka
During the cheapest hours
A spot tariff with smart control: your wallbox waits for the cheapest hours to charge. You just plug in the cable in the evening and smart control takes care of the rest.
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Fixovka 29
At home at night at a fixed price
With the D27d tariff, the low-tariff rate is 3.34 CZK/kWh (ČEZ Distribuce), 3.41 CZK/kWh (PREdistribuce) or 3.47 CZK/kWh (EG.D), including distribution and VAT. The electricity supply price is fixed until the end of 2029.
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For journeys only
At a public rapid charger
The fastest but most expensive option. Best for motorways and long journeys – not for everyday charging.
What matters more than the car? When you charge.
Electric car consumption per 100 km
19 electric cars frequently searched for or bought in Czechia. Consumption figures reflect real-world driving in mild conditions, according to EV Database. Prices per 100 km include 10% charging losses. Click a row to calculate costs for that car.
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Distribution tariff
D27d tariff for electric cars
D27d is a distribution tariff for households with an electric car. The low tariff applies for at least 8 hours a day between 6 pm and 8 am. Depending on your distribution area, a kilowatt-hour costs 34–44% less than on the high tariff. Your distributor grants the tariff – we arrange it for you. Just send us proof that you own or use an electric car, such as a vehicle registration certificate or lease agreement.
How much a kilowatt-hour costs
| Distribution area | D27d low tariff | D27d high tariff | Standard D02d | The low tariff is cheaper |
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We will arrange D27d for you
Send us your vehicle registration certificate or electric car lease agreement and we will request the tariff change from your distributor. If you have a single-tariff meter, we will explain what an electrician needs to change. The distributor will then set up the low tariff, letting you charge at night for 3.34–3.47 CZK/kWh including distribution.
I want the D27d tariffD27d eligibility requirements
Who it is for
A supply point where you can prove that you own or use an electric car, for example through a lease. A shared supply point for a housing cooperative or homeowners’ association may also qualify if it is used exclusively for charging electric cars.
Low tariff
At least 8 hours a day between 6 pm and 8 am. The distributor sets the exact times and may change them as needed.
Technical requirements
Charging must be able to be blocked during the high tariff – the distributor only blocks it when grid capacity is insufficient. If you currently have a single-tariff rate (D01d or D02d), an electrician must adapt the meter cabinet and the distributor must replace the meter. Charging stations in shared areas of a building need a separate power supply and metering.
How often you can change tariff
No more than once every 12 months, except when the customer at the supply point changes or the distributor agrees otherwise.
If you no longer meet the requirements
If you sell your car or your lease ends, for example, let us know within 30 days. A short message is all it takes.
A new wallbox
A wallbox rated above 3.7 kW or a larger circuit breaker first requires a connection application and a new connection agreement with your distributor. PREdistribuce also requires a charging station connection notification form.
What we need from you
- Proof of electric car use (just one document): a vehicle registration certificate, lease, loan or rental agreement, or confirmation from your employer that you use a company car.
- Your supply point – your customer number or address. We already have the other details, including the EAN, tariff and circuit breaker rating.
- Do you have a single-tariff meter? We need an electrician’s confirmation that the meter cabinet has been adapted for dual-tariff metering. We can help you find an electrician.
- Planning a wallbox above 3.7 kW or a larger circuit breaker? We need a connection agreement from your distributor. We will guide you through the application.
- Nothing else. You do not need to visit or deal with the distributor yourself.
How it works
Your request
Contact us through the website form, in the app or on 800 100 303 and send us your supporting document.
Checks
Our customer service team will check that 12 months have passed since your last tariff change, along with your meter type, circuit breaker and wallbox.
Application to the distributor
FONERGY requests the tariff change from your distributor on your behalf.
Electricity meter
If needed, an electrician adapts the meter cabinet, and the distributor replaces the meter and sets up the low tariff.
All done
You receive a new Fixovka 29 price list for D27d, updated advance payments and confirmation in the app.
Charging your electric car with solar power
You pay no distribution charges, fees or VAT on electricity from your own roof. Each kilowatt-hour you put into your car instead of selling it costs only what you would have earned from the sale. That makes surplus solar energy the cheapest way to charge. Any energy your car does not use can be sold with Fotonka.
– km
kilometres from solar power per month
– CZK
savings compared with daytime grid charging
This is an estimate. The purchase price is based on average spot prices from April to September.
Spot prices change with the seasons. Fixovka 29 does not.
Average monthly spot price and Fixovka 29 electricity supply price · CZK/MWh excluding VAT · FONERGY data
Sunshine brings prices down
In spring and summer, solar generation pushes spot prices down – the average in May 2025 was just 1,823 CZK/MWh. An ideal time to charge using your solar panels or a spot tariff.
Autumn brings prices up
September 2026 closed at 3,642 CZK/MWh – the highest since the start of 2025. If you charge on a spot tariff without smart control, you will feel the difference.
Fixovka 29 below the average
The average spot price from January to September 2026 is 2,790 CZK/MWh. Fixovka 29 stays at 2,549 CZK/MWh – 9% lower, fixed until the end of 2029.
Frequently asked questions
Charging your electric car at home
How much does it cost to charge an electric car at home?
With Fixovka 29 and the D27d low tariff, you pay 3.34 CZK/kWh (ČEZ Distribuce), 3.41 CZK/kWh (PREdistribuce) or 3.47 CZK/kWh (EG.D), including distribution and VAT. Charging a 60 kWh battery costs around CZK 200–210, while 100 km costs roughly CZK 48–68, depending on the car and distribution area. The calculator above shows the cost for your car.
How long does it take to charge an electric car?
It depends on the charger’s power. A 60 kWh battery takes much of a day and night to charge from a standard socket (around 2.3 kW), or roughly 6 hours from an 11 kW home wallbox – overnight on the low tariff. A rapid charger usually charges from 20% to 80% in 20–30 minutes.
How should I charge an electric car at home?
Ideally, use a wallbox at night on the D27d low tariff. If you have solar panels, charge around midday when you have surplus energy. Smart control can handle the timing automatically.
Can I charge an electric car from a standard socket?
Yes, but slowly – roughly 10–15 km of range per hour. That is enough for an occasional top-up, but a wallbox is worthwhile for everyday use. Before charging regularly from a socket, have an electrician check the circuit.
What is the D27d tariff and how do I get it?
D27d is a distribution tariff for households with an electric car. The low tariff applies for at least 8 hours a day between 6 pm and 8 am, with exact times set by your distributor. We arrange the change for you: send us your vehicle registration certificate or lease agreement and we will apply to the distributor. You can change tariff no more than once every 12 months.
Is it worth charging an electric car with solar power?
Yes, it is the cheapest option. You pay no distribution charges, fees or VAT on your own electricity – each kilowatt-hour from your roof costs only what you would have earned by selling it. Surplus energy your car does not use can be sold with the Fotonka tariff.
How much electricity does an electric car use per 100 km?
Typical electric cars use 13–18 kWh per 100 km in mild conditions. Allow roughly 20% more in winter and at higher motorway speeds. You will find a comparison of 19 models in the table above.
Do I need a wallbox to charge at home?
You do not have to have one, but it is worthwhile. A wallbox charges several times faster than a socket, is safer and supports smart control – charging your car during the cheapest hours or using surplus solar power.
The figures in these answers are calculated from the Fixovka 10/2026/F29 price list (ČEZ Distribuce, EG.D and PREdistribuce) and charging parameters. See the D27d section for tariff requirements.
What our customers say
Google reviews rank us among the best-rated energy suppliers – and perhaps even the best.
Mám se společností jen dobré zkušenosti, vždy mi vyjdou vstříc a hlavně mají velmi dobrý přístup ke mě,jako k zákazníkovi.
Velká spokojenost, vše absolutně transparentní. Korektní jednání.
Jsem u této firmy přes 12 let a mohu vřele doporučit. Ceníky přehledné, infolinka funguje suprově - dokáží poradit, zařídit.... A bonusem je aplikace. Je vidět, že ceny energií nemusí být na nejvyšším možném čísle. Děkuji že jste.
S Fonergy mám zatím velmi dobrou zkušenost. Oceňuji hlavně férové jednání, přehledné podmínky a příznivé ceny energií. Komunikace se zákaznickou podporou byla rychlá a bez zbytečného přehazování mezi lidmi. Velkým plusem je také aplikace, kde mám přehled o smlouvách, zálohách, platbách i spotřebě. Celkově na mě Fonergy působí jako férový a spolehlivý dodavatel, který se nesnaží dělat zbytečné komplikace. Za mě určitě doporučuji.
U tohoto dodavatele elektřiny jsem již 4 roky a jsem spokojený. V době, kdy jsem k němu přecházel, byl jedním z nejlevnějších důvěryhodných dodavatelů a dle srovnávače na webu ERÚ stále patří k těm nejlevnějším. Za celou dobu jsem neřešil žádný problém. Tohoto dodavatele doporučuji.
Poté, co můj dlouholetý dodavatel elektřiny začal zvýhodňovat nové zákazníky před stávajícími, jsem se rozhodl poohlédnout se po novém dodavateli. Na srovnávači ERU jsem nalezl nabídku firmy Fonergy a zavolal na jejich infolinku. Prvním velkým překvapením pro mne bylo, že se mi neozval žádný umělý, tzv. inteligentní asistent, ale skutečný člověk. Specialistka Call centra byla velmi vstřícná, příjemná a zodpověděla mi všechny mé dotazy. I další jednání se zaměstnanci firmy bylo velmi příjemné, proto jsem se rozhodl přejít k této společnosti. Druhým velkým překvapením pro mne bylo, jak rychle a pohodově vše proběhlo, kdy mi prodejní specilistka vše vysvětlila a se vším poradila. Třetím milým překvapením pro mne byly hodnocení stávajících zákazníků firmy Fonergy zde na Google. Vidím, že většina zákazníků je stejně jako já spokojena s velmi vstřícnou komunikací s call centrem, ale hlavně také vidím, že firma Fonergy je na trhu už spoustu let a že i dlouholetí zákazníci zde mají stejně výhodné podmínky jako ti noví, a to je to, co hledám. Věřím, že Fonergy budu chválit stejně jako dnes i za 10 let, pokud se toho dožiji.
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We are transparent
Browse all our documents and price lists. If you have questions, check our answers to frequently asked questions or give us a call.
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