The parties that Terna interacts with the most in its core business activities are the electricity sector operators. Such interaction particularly regards:
- Distribution companies and production plant owners: with these parties, Terna regulates the electricity transmission service on its grid.
- Dispatching users: with producers, end customers and wholesalers, Terna regulates the dispatching service.
- Interruptible customers: are the end customers of withdrawing that offer Terna an interruptible service for their load.
Relations between sector operators and Terna are regulated principally by the sector Authority and are technically and commercially defined in the Grid Code. Terna, however, adopts a customer care approach with the sector operators that goes well beyond the proper application of the regulations.
In 2017, Terna procured resources for interruptibility and instant-load-reduction services, which aim to secure the functioning of the national electricity system in the event that resources procured on the market were found to be insufficient. Participants in the interruptibility service numbered 243 in 2018, accounting for 4,214 MW of power. The related annual cost amounts to approximately €0.25 billion.
ELECTRICITY INDUSTRY OPERATORS COLLABORATING WITH TERNA – NUMBER OF USERS
|Distributors directly connected to the NTG
|Injection dispatching users (Producers and Traders)
|Withdrawal dispatching users (Traders and end customers, including the Single Buyer)
* In addition to licensed distribution companies, the figure includes operators of closed distribution systems for internal user networks directly connected to the NTG.