Kostner
Electricity offers June 2026
Save up to 120 euros per year compared to the protected market
Kostner currently has 1 electricity offers available on the free market. The most convenient is Kosi Home Holiday 26, a variable-price offer that tracks market trends and saves you up to 120 euros per year compared to the protected market.
How does Kostner compare to others?
Did you know that with Kostner you could spend 31€ a year more compared to Edison Energia? Do you want to find out if there's a better option?
Compare with the marketBest offers from Kostner
All electricity offers by Kostner
| Offer Name | Type | Annual Cost | Bands & Prices | Comm. Fee | Duration |
|---|---|---|---|---|---|
Kosi Home Holiday 26 →100% Green | VARIABLE | €470 | F0 081823 PUN + 0.0110 €/kWh (0.1286 €/kWh) | €80/year | No commitment |
How much do you save with Kostner?Bolin tells you!
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Is fixed or variable price better with Kostner in June 2026?
The PUN (Prezzo Unico Nazionale) is the monthly price of electricity in Italy: when it rises your bill increases, when it falls you save automatically. Kosi Home Holiday 26 is a variable-price offer: its cost directly follows the PUN. The chart shows how your price has changed over time.
With the indexed offer Kosi Home Holiday 26 from Kostner and a spread of 0.011 €/kWh, as of June 2026 you are currently paying about 0.129 €/kWh.
* Values in €/kWh. Source: GME — Gestore Mercati Energetici. Updated monthly.
Fixed or variable electricity tariff: here are the differences
In the free electricity market, suppliers can offer either fixed-price or indexed tariffs. With a fixed price, the cost of electricity (€/kWh) stays the same for the entire duration of the contract, whereas with indexed offers the price of electricity changes each month based on the PUN (Prezzo Unico Nazionale, Italy's national wholesale electricity index).
Kostner offers exclusively PUN-indexed contracts, such as Kosi Home Holiday 26. Here are the pros and cons of a variable-price contract.
- When the energy market price falls, your bill decreases automatically in line with the change
- There is no fixed contract term and you can switch offer or supplier at any time without early exit penalties
- During periods of high energy price volatility, your bill can rise significantly and monthly costs become harder to predict
- The electricity price (€/kWh) stays fixed for the entire contract, regardless of how the PUN moves
- Ideal for those who want a predictable energy bill with no unexpected changes
- If the PUN falls after activation, you continue paying the agreed price without benefiting from market drops
Want to stay ahead?
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Why choose Kostner?
Kostner is an Italian energy provider that offers electricity and gas services for residential and business customers. The company stands out for an approach focused on transparency and simplicity in managing energy supplies, offering competitive rates and customized solutions to meet the diverse needs of Italian consumers. The main goal is to guide customers in choosing sustainable and affordable energy solutions, focusing on clear and reliable service in the Italian utility landscape.
Pros
- Services aimed at both residential and business customers
- Focus on transparency in all contractual aspects
- Customizable solutions to meet different energy needs
Cons
- Limited information on online reputation and customer feedback
- Customer service details not fully verifiable
- Presence in the Italian market still in consolidation phase
Not sure what to choose?
Bolin analyzes your situation, compares thousands of energy and gas offers, and shows you only the most affordable ones.
- Free bill analysis
- Tailored offer comparison
- Stress-free provider switching
FAQ — Kostner
What is the cheapest offer from Kostner?
Currently, the most advantageous offer from Kostner is Kosi Home Holiday 26, with a price of 0.129 €/kWh and an estimated annual expense of €470 for a typical family.
Does Kostner offer renewable energy?
Yes, Kostner offers 1 100% Green offer certified through Guarantees of Origin.
Are there activation costs with Kostner?
The switch to Kostner via Bolin is always free, with no service interruptions or technical interventions on the meter.
How to activate online with Kostner?
Just upload your latest bill to Bolin. Our AI will analyze your consumption and show you the real savings you can get with Kostner's offers compared to your current rate.