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Il PUN Index GME è il prezzo di riferimento dell’energia elettrica all’ingrosso in Italia, calcolato e pubblicato dal Gestore dei Mercati Energetici. È l’indice su cui si basano la maggior parte dei contratti luce a prezzo variabile.
Fino al 2024 il riferimento era il PUN (Prezzo Unico Nazionale). Dal 2025, con la riforma del mercato elettrico, il GME pubblica il PUN Index GME, che ne ha preso il posto come indice per i contratti.
Si esprime in €/MWh (1 €/MWh = 0,001 €/kWh) ed è disponibile per ora, giorno, mese e fascia oraria.
In un contratto indicizzato il prezzo dell’energia è PUN Index più uno spread fisso: se il PUN sale, sale anche la bolletta.
In bolletta
Nei contratti variabili la bolletta riporta il valore del PUN del periodo (spesso per fascia) e lo spread applicato.
Approfondisci: Fisso, indicizzato o ibrido: come scegliere il contratto giusto
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