Power plant connection

A power plant connection needs to be implemented if it is intended to generate electricity for commercial purposes or for the provision of one’s own needs with production facilities whose total operating current exceeds 16 amperes in the phase (3.7 kilowatts in a single-phase connection or 11.1 kilowatts in a three-phase connection) and which are connected for parallel operation with Sadales tīkls electrical network. Sadales tīkls assesses the power plant connection process of up to 10 MW. For higher capacity power plants, please contact the transmission system operator Augstsprieguma tīkls JSC.

We invite you to complete the following steps before submitting the application to Sadales tīkls:

Regulations on a power plant connection (available in Latvian)

Electricity Market Law

Decision No. 1/6 of the Public Utilities Commission: Regulations Regarding System Connection for Electricity Producers

Construction Law

Cabinet’s Regulations No. 573: Regulations Regarding Construction of Electricity Generation, Transmission and Distribution Structures

Cabinet’s Regulations No. 624: Regulations on Procedures for Metrological Control of Measuring Instruments and Initial Verification Marks

Cabinet’s Regulations No. 981: Regulations on Repeated Verification of Measuring Instruments, Verification Certificates and Verification Marks

Cabinet’s Regulations No. 212: Metrological Requirements for Measuring Instruments and Procedures for Their Metrological Control

Cabinet’s Regulations No. 666: Regulations on Metrological Requirements for Active Electricity Meters

Cabinet’s Regulations No. 40: Regulations on the List of Measuring Instruments Subject to State Metrological Control

The Network Code, approved by Decision No. 1/4 of the Public Utilities Commission of 26 June 2013

Technical Regulations for the Connection of a Wind Power Plant; Latvian Association of Power Engineers and Energy Constructors, Riga, 2008

Law on Uniformity of Measurements

Decision No. 1/3 of the Public Utilities Commission: General Authorisation and Registration Regulations in the Field of Energy

Cabinet’s Regulations No. 262: Regulations Regarding the Production of Electricity Using Renewable Energy Sources and the Procedures for the Determination of the Price

Cabinet’s Regulations No. 221: Regulations Regarding Electricity Production and Price Determination upon Production of Electricity in Cogeneration

EU Commission Regulation 2016/631 of 14 April 2016 establishing a network code on requirements for grid connection of generators

Services of the Ministry of Economics

 

 

Generator
1.
Submission of the application
  • Fill in the application for the Power plant connection (avaliable in Latvian)
  • Submit it in a scanned form, attach scanned copies of the documents mentioned in the application and send them to st@sadalestikls.lv (signed original send to Sadales tīkls AS, 1 Šmerļa Street, Riga, LV-1160)
Sadales tīkls
2.
Preparation of the technical regulations
  • Wihin 60 calendar days ST will prepare and send the technical regulations for implementation of the power plant connection to electricity distribution system
  • The technical regulations are valid for 2 years
Generator
3.
Connection construction project designing
  • To confirm continuation of the process, please send us  1 signed copy of the Agreement on the Development of the Electrical Installation Construction Design by e-mail to st@sadalestikls.lv or by post to Sadales tīkls AS, 1 Šmerļa Street, Riga, LV-1160
  • Select a designer and carry out the design work (you must cover the design costs) according to the issued technical regulations
  • Submit the approved construction design to Sadales tīkls
Sadales tīkls
4.
Selection of the construction merchant, agreement and invoices
  • Sadales tīkls or the Generator selects the construction contractor
  • Upon the completion of the selection, Sadales tīkls will send the power plant connection agreement and the invoice for the construction of the connection to the electricity distribution system
Generator
5.
Connection agreement and payments
  • Sign the copies of the power plant connection agreement received on the postal address specified in the application
  • Send one copy to Sadales tīkls AS, 1 Šmerļa Street, Riga, LV-1160
  • Pay the invoice
Sadales tīkls
6.
Construction of the connection
  • The selected construction contractor carries out the construction of the power plant connection to the electricity distribution system
Sadales tīkls and generator
7.
Distribution system services agreement
  • Sadales tīkls sends the System Service Agreement to the postal address (by that time, the construction must be completed and the Confirmation of Object`s Readiness to Receive Electic Power must be submitted to ST)
  • Sign the received copies of the agreement and send one copy to Sadales tīkls AS, 1 Šmerļa Street, Riga, LV-1160
Generator
8.
Application for testing of the power plant
Sadales tīkls
9.
Approval of the documentation
  • Sadales tīkls examines the submitted documentation for the testing of the power plant
  • The connecting and testing programme is done, deed of delimitation and regulations of mutual operational relations (if necessary) are approved
  • The time for the testing of the power plant is agreed upon
Sadales tīkls
10.
Inspection of the power plant
  • Sadales tīkls carries out the conformity testing of the power plant construction according to the submitted documentation
  • Sadales tīkls issues a permit to connect the power plant for a test period of at least 72h
Generator
11.
Testing of the power plant
  • You arrange the testing of the power plant, involving an accredited laboratory for carrying out the voltage quality measurements
  • You submit a report to Sadales tīkls on the successful completion of the testing,  attaching all necessary documents (avaliable in Latvian), including the Construction Board’s report on the commissioning of the power plant structure
  • You invite ST specialists when the power plant reaches its maximum capacity during the test process according to the test programme
Sadales tīkls
12.
Connection of the power plant to the system
  • Sadales tīkls prepares a report on the recognition of the power plant as compliant for parallel operation with the system, which is signed by both parties
  • Sadales tīkls issues a permit to connect the power plant for parallel operation with the distribution system