
You can report an error in the data you've downloaded/viewed from the area "Submit a request" on the bottom of the Support page. Select:
Relationship: Portale Dati
Topic: Supporto Operativo
Reason for Request: Informazioni Generiche
You can provide more information on your request in the "Description" field, by specifying the menu item and reference section.
You need to be registered to MyTerna in order to send a request.
First, select the aggregation type between:
Then associate the units based on the corresponding node or market zone.
The BSP selects the UVAN aggregate and accesses the list of all UPs/UCs under its responsibility, selectable in accordance with Chapter 4 of the Grid Code.
The BSP selects the UVAZ aggregate and accesses the list of all UPs/UCs in the same market zone, selectable in accordance with Chapter 4 of the Grid Code.
The BSP selects the services to be enabled and enters the upward/downward modulation power values.
A UVAN (Nodal Enabled Virtual Unit) is an aggregate of UPs and/or UCs relevant for the provision of national ancillary services, with a nodal perimeter.
To gain access, the operator must request the BSP role by initiating the contract procedure in My Terna.
A BSP is the Balancing Service Provider, the entity that has entered into a contract with the Grid Operator for the provision of national ancillary services, as defined in Chapter 4 of the Grid Code.
The new guarantee to be provided in the event of signing the dispatching contract and, where enabled UPs are managed, the contract for the provision of global national ancillary services for the TIDE consolidation phase, becomes effective from February 1, 2026.
If the issuing institution of the new guarantee is the same as the one that issued the guarantee for the dispatching contract valid until January 31, 2026 (for the TIDE transitional phase), it is possible to replace point 1 of the guarantee template provided in Article 17 of Annex A61 to the Grid Code with the following wording:
“This guarantee, covering the contract(s) (Insert Contract Code(s)), is valid from 1/2/2026 until DD/MM/YYYY and is deemed tacitly renewed year by year unless the Bank/Institution notifies Terna S.p.A., via certified email (PEC), at least 120 days before the validity and effectiveness date of the guarantee, of its intention not to proceed with the tacit renewal. This guarantee is to be considered a full replacement of guarantee no. ------- issued by ------------ and also covers the economic items arising from the dispatching contract for withdrawal and/or injection valid until January 31, 2026, held by the Company.”
The supplementary paragraph must include references to all guarantees issued by the same institution in relation to dispatching and/or withdrawal contracts held by the company.
If the issuing institution of the new guarantee is not the same as the one that issued the guarantee for the dispatching contract valid until January 31, 2026, the return of the previously provided guarantee may be requested starting from February 1, 2026, upon signing the new dispatching contract and, where applicable, the contract for the provision of global national ancillary services.
The security deposit provided for the contract valid until January 31, 2026, is automatically renewed and will already be considered in the residual capacity calculation tool made available to operators as provided by Resolution 314/2025.
At the time the guarantee is submitted for the purpose of signing the new contract, Terna will verify whether the guaranteed amount is at least equal to the operator’s exposure calculated according to Annex A.61 of the Grid Code. If the verification is negative, the new contract will not be activated until the guarantee amount is adjusted.
After the new contract is signed, in the event of changes to the operator’s exposure (e.g., due to new requests to include production/consumption units), the BRP/BSP can verify the adequacy of the guaranteed amount using the tool provided by Terna. If Terna, during its monitoring, finds a negative residual capacity, it will request an integration of the guarantee to be made, as provided in Annex A.61, within the following 7 working days.
In the Guarantee Regulation (Annex A.61), it has been clarified that:
The reference value is CAP IMM, i.e., the injection capacity associated with the UP, as defined in paragraph 4.11.1.6 of Chapter 4 of the Grid Code;
Solely for the purposes of the Guarantee Regulation, the injection capacity of UPs powered by photovoltaic sources is equal to half the injection capacity value, instead of using the modulation curve in Chapter 4 of the Grid Code;
For UPs with negative configurations, the injection capacity also includes the negative margin (in absolute value) associated with the relevant UP.
In the dedicated section of the Sunset portal in MY Terna, a tool will be made available to calculate the residual capacity of the guarantee as per paragraph 7.1 of the Guarantee Regulation, in accordance with Resolution 314/2025. The Residual Capacity value will only include security deposits, as they are automatically renewed. It will therefore not consider bank guarantees, insurance policies, or parent company guarantees, which must be provided for the signing of the dispatching and/or ancillary services contracts effective from February 1, 2026.
Even for UPs already included in the company’s injection dispatching contract, it is necessary to submit the mandate or a self-declaration confirming receipt of the mandate from the UP owner for managing the UP under the new dispatching/BSP contract for the TIDE consolidation phase. For this purpose, the new template (Annex 1) available within the contract signing procedure must be used.
The BRP/BSP contract to be signed will be made available within the contract signing procedure after the requesting company’s documentation has been positively verified and the guarantee capacity has been confirmed. The completed and signed copy of the contract may be submitted only after it is made available in the signing procedure and must be submitted within the following 5 working days.
To request a switchIn, access the «SwitchIn» section within the Connections area of the MyTerna portal.
Click on the «SwitchIn Request» button and fill in all the required mandatory fields. After completing the fields and clicking the «Save» button, the system will bring you back to a screen where you need to upload documents and payments.
To complete the switchin request and send it to Terna, click on the «Confirm and Send to Terna» button.
To learn more about how to request a switchIn, please refer to the User Manual (Italian version only) and/or to the videotutorial (Italian version only).
Browsers compatible with the new Connections area of the MyTerna portal are:
You can request information or make a report to Terna by opening a ticket in the dedicated «Ticket» section on the Connections area of the MyTerna portal (MyTerna > Connections > Tickets). Here are the steps to follow:
• click on the «Create Ticket» button and fill in the required fields;
• click on the «Save» button;
• after saving, if necessary, click on the «Create document» button to attach any documents to support the request;
• complete the ticket opening by clicking on the «Confirm and Send to Terna» button.
To learn more about how to open tickets, you can consult the User Manual (Italian version only) and/or to the videotutorial (Italian version only).
Information on plant realization costs is available on the website in the section Forms for NTG connection - Average plant realization costs (Italian version only).
On the page "Support" accessed in the header, the MyTerna portal provides two ways to contact the Call Centre:
To reset your password, if you have not logged in yet, click on the «Login» button on the homepage of the New MyTerna Portal, then click on the link «Forgot your password or your username?» and follow the suggested steps; if you have already logged in, you need to log out first in order to follow the steps above.
For additional details refer to the specific user guide.
In case of further issues, please feel free to contact the Call Center team from Monday to Friday (8.30 - 17.30) at the number 800.999.333.
Browsers compatible with the New MyTerna Portal are:
If access to the New MyTerna Portal is denied, it is necessary to verify if the credentials entered are correct and, if needed, proceed with a password reset. For further information on the password reset procedure, please refer to the relevant FAQ.
Only documents not exceeding 128 MB can be uploaded.
You can find your requests by accessing the section “Operations”, subsection “Speak with Terna”, under “Contact Terna” on the MyTerna portal.
If the information entered is not correct/complete, the Terna Team may request its integration. The Electricity Operator will receive an email stating that the Request has been updated by the Terna Team and that it is necessary to refine the information entered, by accessing the Portal through the link provided in the email. To view the reasons why a given Request is in the «Request For Information» status, select the Request of interest in the New MyTerna Portal and view the «Notes» section, containing the information to be integrated and the related reasons.
To view the status of a specific Practice, access the section «Operations», subsection «Trade Relationship», item «Practice List» within the New MyTerna Portal, where the relevant Status is visible for each Practice in the field «Status Reason».
To view the status of a specific Request, access the section «Operations», subsection «Service Request», item «Service Request» within the New MyTerna Portal, where the relevant Status is visible for each Request in the field «Status Reason».
To view the status of a specific Trade Relationship, access the section «Operations», subsection «Trade Relationship», item «Trade Relationship List» within the New MyTerna Portal, where the relevant Status is visible for each Trade Relationship in the field «Status Reason».
You can find your Requests by accessing the «Operations» section, subsection «Service Request», item «Service Request» within the New MyTerna Portal.
You can find your Trade Relationships by accessing the «Operations» section, subsection «Trade Relationship», item «Trade Relationship List» within the New MyTerna Portal.
To start a Trade Relationship Stipulation, access the section «Operations», subsection «Trade Relationship», item «Trade Relationship Stipulation» within the New MyTerna Portal. Once you reach the section «Stipulation Practice», select the Trade Relationship of interest in the drop-down menu «Trade Relationship Type», and follow the guided procedure. From the New MyTerna Portal, it is possible to request the Stipulation for the following Trade Relationships:
• Aggregation Measures Convention;
• CTR Convention;
• Injection Dispatching Contract;
• Withdrawal Dispatching Contract.
For further information about the Trade Relationship Stipulation, please refer to the relevant Manual for the Trade Relationship.
The mandatory documents to be submitted in the first instance for the registration of a new Electricity Operator – Legal Type are the following:
• Valid Super User Identity document,
• Super User mandate,
• Chamber of commerce certificate: document enabled only if the Country of the Legal Head Office of the Electricity Operator is Italy and the release date does not exceed 6 months.
In addition, the following documents are optional:
• Reverse Charge: document enabled only if the User has modified the attribute «Activity Type», selecting one of the following types of operation: «Injection/Withdrawal Dispatching Contract», «Interruptibility scheme Contract», «Interconnector program Contract/Shipping service Contract»,
• Anti-mafia certificate: document enabled only if the User has modified the attribute «Activity Type» selecting «Request/Modification of connection to the National Transmission Grid».
The mandatory documents to be presented in the first instance for the registration of a new Electricity Operator – Normal Type are the following:
In addition, the following document is optional: Anti-mafia certificate, document enabled only if the User has modified the attribute «Activity Type» selecting «Request/Modification of connection to the National Transmission Grid».
For inquiries or technical support contact us at crm@terna.it or call 800.999.333, or +39 06 83138151 from abroad. (Monday to Friday, 8:30 a.m - 5.30 p.m)