Electricity app for Slovenia
Tarifnik: find out if you're overpaying for electricity
Tarifnik is a free app for households in Slovenia. It connects to your electricity meter through the official mojelektro.si portal, shows your usage and costs by the hour and compares all major Slovenian suppliers on your actual consumption. 84,419+ people use it, and it is rated 4.7 out of 5 in the app stores.
€83.53
average potential saving a year
73%
don't have the cheapest tariff
Free · the app is in Slovenian
What Tarifnik does
See what you use and pay
Connect your metering point through mojelektro.si and see usage and costs by the hour, day and month, a breakdown of your bill and sudden spikes from power-hungry appliances. Data arrives the next day; with a Shelly smart meter you see live usage every 5 seconds.
Find the cheapest supplier
Tarifnik compares all major Slovenian suppliers and tariffs (single-rate, dual-rate VT/MT and dynamic) on your actual usage over the last 12 months. Price radar checks the market every month and emails you when a better offer appears.
Use electricity when it's cheaper
See the network time blocks (1–5) and your high/low tariff for any day, get a notification before the block changes, follow hourly exchange prices for dynamic tariffs and plan when to run the washing machine or charge the car.
Understand your bill
Tarifko AI answers questions about electricity in plain language, and the app includes energy news, saving tips with estimated savings in euros and a glossary of terms from your bill.
How it works
Step 1
Download
Get the free app for iOS, Android or Huawei.
Step 2
Connect your meter
Enter your metering point number and an API token from mojelektro.si. It takes less than 5 minutes.
Step 3
Save
See which supplier and tariff are cheapest for you and how much you would save per year.
Independent, free and made in Slovenia
Tarifnik doesn't sell electricity, doesn't represent any supplier and takes no commission for its recommendations. It is supported by ELES, the Slovenian transmission system operator, and ZPS, the Slovenian Consumers' Association, which reviews supplier price lists every month.
Tarifnik has been available since 2024. It is developed and operated by CNJ, a digital agency from Ljubljana working on strategy, UX and digital product development since 2012 (CNJ d.o.o., Dunajska 47, 1000 Ljubljana, Slovenija). The app has 1,350+ ratings in the app stores.
Frequently asked questions
- Yes. The app and all its features are free, including connecting your metering point.
- No. Tarifnik uses the Slovenian mojelektro.si portal for meter data and the price lists of Slovenian electricity suppliers, so it is useful for households with a metering point in Slovenia.
- The app is in Slovenian. This page gives an overview in English; the rest of the website is in Slovenian too.
- Your metering point number and an API token, which you create on the mojelektro.si portal. You only do this once.
- All major suppliers in Slovenia: BISOL Energija, ECE, Elektro energija, Energetika Ljubljana, Energija Plus, GEN-I, NGEN, Petrol, SunContract. Prices come from the monthly review of supplier price lists by ZPS, the Slovenian Consumers' Association.
- Tarifnik uses the data from mojelektro.si only for your own calculations. It does not sell your data or share it with third parties.