
How do tariffe energetiche dinamiche work and how can you earn more with a batteria domestica? Explanation, suppliers, calculations and tips.
With a traditional contratto energetico, you pay a fixed price per kWh, ad esempio EUR 0.25. With a contratto dinamico, the price varies all'ora (or per quarter hour) based on the actual market price on the mercato spot EPEX.
Elettricità prices on the mercato spot EPEX vary significativamente:
| Orario | Typical price (incl. IVA, excl. tariffe di rete) | Perché |
|---|---|---|
| Notte (02:00-06:00) | EUR 0,03-0,10 | Basso consumo, generazione eolica |
| Mattina (07:00-09:00) | EUR 0,15-0,30 | Consumo di punta, tutti si svegliano |
| Giornata (10:00-16:00) | EUR 0,00-0,15 | Lots of energia solare, sometimes negative prices |
| Picco serale (17:00-21:00) | EUR 0,20-0,40 | Cucina, TV, riscaldamento, poco sole |
| Notte (22:00-02:00) | EUR 0,05-0,12 | Il consumo diminuisce |
On sunny days in spring and summer, elettricità prices can even go negative during the day — you actually get paid to consume elettricità. On cold winter evenings, prices can rise to EUR 0.50 or more.
The strategy is simple: buy low, use high.
Modern batterie domestiche like the Zendure SolarFlow and Anker SOLIX connect to the mercato spot EPEX via their app. The system automatically plans when to charge and discharge, based on the expected prices for the next 24 hours.
Ipotesi: 10 kWh usable capacità della batteria, one full cycle daily (realistic in combination with pannelli solari), average price difference between cheapest and most expensive hour: EUR 0.15/kWh.
| Calcolo | Value |
|---|---|
| Risparmio giornaliero | 10 kWh x €0,15 = €1,50 |
| Risparmio mensile | 45 € |
| Annual saving from tariffe dinamiche | 540 € |
In pratica, this varies. In winter, price differences are larger (more savings), in summer they are smaller. A realistic estimate for an actively managed 10 kWh system is EUR 300-600 all'anno.
On days with negative elettricità prices (in 2025, there were more than 100 hours with negative prices nei Paesi Bassi) you literally earn money by charging your batteria. You get paid to consume elettricità and then use that power in the evening.
The main Dutch suppliers with contratto dinamicos in 2026:
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| Fornitore | Tipo di tariffa | Dettagli |
|---|---|---|
| Fornitore Tibber | Prezzo orario EPEX | Più popolare, buona app, dongle Tibber Pulse |
| Fornitore Frank Energie | Prezzo orario EPEX | Tariffe competitive, app chiara |
| Fornitore ANWB Energie | Prezzo orario EPEX | Via piattaforma Tibber |
| Fornitore Easy Energy | Prezzo orario EPEX | Nessun costo fisso di fornitura |
| Fornitore Zonneplan | Prezzo orario EPEX | Integrazione ricarica intelligente EV |
| Fornitore Beursstroom | Prezzo orario EPEX | Trasparente, ricarico basso |
| Fornitore NextEnergy | Prezzo orario EPEX | Nuovo arrivato con tariffe competitive |
Consiglio: Don't just look at the kWh price but also at the fixed supply costs, tariffe di rete and the markup your supplier charges on top of the EPEX price.
Not every batteria is equally suitable. The key requirements:
| Marca/Modello | Integrazione tariffe dinamiche | Valutazione |
|---|---|---|
| Sistema Zendure SolarFlow | Built-in, very good. Automatic EPEX optimisation via app | Il migliore della categoria |
| Sistema Anker SOLIX (Solarbank + X1) | Good. dongle P1 connection, smart programma di caricas | Molto buono |
| Sistema EcoFlow DELTA Pro Ultra | Basic. Via Smart Home Panel and external integration | Buono |
| Sistema Huawei LUNA 2000 | Via inverter + external integration (Home Assistant) | Buono, più manuale |
Five practical tips to get the most out of your contratto dinamico and batteria domestica:
The prezzo spot EPEXs for the following day are published every day at 13:00. Smart batterie use this data automatically. Check whether your system supports this.
Free energia solare is always more advantageous than cheap grid power. Set your batteria to prioritise generazione solare over charging from the grid.
The highest tariffs tipicamente fall between 17:00 and 21:00. Make sure your batteria is sufficiently charged at those times to cover your consumption.
Use your batteria's app and your fornitore di energia's app to monitor your savings. After a month, you'll see patterns and can refine your strategy.
Schedule your washing machine, dishwasher and other high-consumption elettrodomestici during cheap hours. In combination with a batteria domestica, you reduce your costi energetici to the maximum.
Tariffe dinamiche are not without risk:
Our honest advice: A contratto dinamico combined with a batteria domestica is finanziariamente more attractive for most nuclei familiari with pannelli solari than a fixed contract. But it requires a batteria domestica with good controllo intelligente. Without a batteria, you're vulnerable to price spikes.
Savings vary from EUR 200 to EUR 600 all'anno, depending on your capacità della batteria, consumption pattern and how actively you optimise. Households with pannelli solari and a 10 kWh batteria save in media EUR 350-500 all'anno compared to a fixed contract.
No, a contratto dinamico also works without pannelli solari. With just a batteria domestica, you benefit from the price difference between cheap and expensive hours. But the combination with pannelli solari is the most profitable, as you also store free energia solare.
In theory yes, if you systematically consume elettricità at the most expensive times. In pratica, a batteria domestica with controllo intelligente ensures you do the exact opposite. The risk is minimal when you use a batteria with automatic optimisation.
Switching can usually be done within 2-4 weeks. Your current supplier has a cancellation period of a maximum of 30 days (with a variable contract) or until the end of the contract period (with a fixed contract). There are no costs associated with switching.
The mercato spot EPEX is the day-ahead market on which most contratto dinamicos are based. The imbalance market is the real-time market where the grid is balanced. Some advanced systems can also trade on the imbalance market, but this is more complex and not accessible to most consumatori.
Patrick di Home Energy Solutions
Founder & certified energy advisor
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