Connections to the transmission grid

As an electricity transmission system operator (TSO), AS Augstsprieguma tīkls has a permanent obligation, subject to the scope and term of its licence, to ensure the network members have the necessary connections to the transmission system or the necessary changes to the permitted capacity of the existing connection consistently with the regulations issued by the Public Utility Regulatory Commission (the Regulators).

The regulations issued by the Regulator:

The users of the electricity transmission system are required to comply with Commission Regulation (EU) No. 2016/1388 of 17 August 2016 on establishing a network code on demand connection.

Electricity producers must comply with the requirements of the Commission Regulation (EU) of 14 April 2016 establishing a network code on requirements for the grid connection of generators.

Electricity producers and electricity users must comply with the requirements of the Network Code for the Electricity Sector

Under the procedure prescribed by the Cabinet, the end-user has the right to submit an application for special connection to the transmission system or for increasing the connection capacity of the existing transmission system if after the installation of the connection the user’s electricity consumption will increase by at least 100,000 megawatt hours per year or with a nominal capacity of the connection of at least 50 megawatts. Cabinet Regulation No. 476 “Regulation on Special Connection to the Electricity Transmission System”

Steps to install connections

The change of the technical parameters of the connection coincides with the process of installation of the connection.

+Step 1: The system’s User/Producer application

Prior to the preparation of the application, the User or the Producer must evaluate the place of connection, considering the budgeted capacity in the long term as well as electricity costs, considering the connection tariff (rate). The Users or Producers with a capacity of up to 10MVA mainly choose to install connections to the electricity distribution system, whereas a higher capacity connection can be budgeted for the electricity transmission system.

Prior to the preparation of the application we encourage you to discuss the possible connection solutions. Please email: edgars.lazda@ast.lv regarding your preferred timing of the meeting with the company's specialists concerning the installation of the connection

Users:

Producers:

+Step 2: AST’s technical requirements

The technical specifications shall be issued to Users and Producers within 30 and 60 days of the date of receipt of their application, respectively.

If the development of the technical specifications is complex and takes longer to prepare it or if the user has failed to provide all the necessary information to the system operator, the system operator shall notify the system user/Producer in writing about the deadline for issuing the technical specifications.

+Step 3: Signing the agreement

The agreement is a document entered into between the TSO and the User or the Producer, which describes the responsibilities and accountability of the TSO, the User or the Producer; specifies who will arrange the procurement procedure, initiate construction, what the payment terms are, as well as describes many other connection related matters to be mutually resolved (such as the land development right, equipment specifications, etc.).

Please refer to the full flow chart below and step 10 of the parallel process for real estate issues for the User or the Producer.

+Step 4: Development of procurement documentation

In accordance with the concluded agreement, the TSO develops procurement documentation for procurement. For the TSO part, the TSO prepares the design task for the design work, the technical specifications for the delivery of the equipment, the technical task for the contractor and other documents (regulations, contracts, etc.).

+Step 5: Implementation of the procurement procedure

In accordance with the concluded agreement, all necessary procurement procedures are performed.

+Step 6: Connection agreement

The connection contract shall be concluded when all procurement procedures have been completed and all costs are known.

After concluding the connection agreement, the TSO concludes agreements with the winners of the procurement procedure (for the part of the TSO), regardless of who has performed the procurement procedure.

+Step 7. Technical designing, supplying of equipment and construction works

In accordance with the concluded agreements, the design and construction of the connection, as well as the delivery of equipment are performed.

Upon completion of the construction work, the connection must be commissioned according to the procedures available in the description of step 9.

 

+Step 8: System service agreement

Users:

A system service agreement is concluded before the inspections and tests are performed. The tests and inspections shall be performed in accordance with Commission Regulation (EU) 2016/1388 of 17 August 2016 establishing a Network Code on Demand Connection and the Network Code.

Producers:

A system service agreement is concluded before the inspections and tests are performed. The tests and inspections shall be performed in accordance with European Commission Regulation 2016/631 of 14 April 2016 establishing a network code on requirements for grid connection of generators and the Network Code.

+Step 9: Commissioning procedure

To establish the procedure for the operation notification procedure for the type D electricity generation modules, demand installations and distribution installations and to make it publicly available in accordance with the requirements of Regulation 2016/631 and Regulation 2016/1388.

Procedures for the Operation notification and Procedures for performing inspections (only Latvian)

+Step 10: Real estate issues

If the installation of the connection is linked to the construction of a  new JSC "Augstsprieguma tīkls" substation or a part of it, then the installer of the connection shall provide the plot of land necessary for the substation or its part (hereinafter - Land).

The Land must not be part of any other land property. If it is the case, it is important to start the process of Land property subdivision in a timely manner. If the Land does not have an access road, the connection installer must provide an access road.

We advise to address issues related to Land as soon as the first agreement has been singed (Step 3). The land acquisition agreement or the building right agreement must be concluded before the conclusion of the Connection Agreement (step 6).

The registration of property rights in the name of JSC "Augstsprieguma tīkls" must be finalised before the conclusion of the System Service Agreement (Step 8).