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New connection implementation is carried out in accordance with the Regulations Regarding the Terms of the System Connection for the Participants of the Power System (available in Latvian). They set forth single rules for implementing a new connection or changing existing connection load.
New connection implementation or load increase costs are estimated in accordance with the Regulations Regarding the Terms of the System Connection for the Participants of the Power System (available in Latvian).
Yes, you can also contact your electricity trader to apply for the service.
Yes, the user can agree with the construction contractor.
No, the user cannot apply for the full service connection. If we can offer this service to user, we will inform by phone mostly within 5 working days (in complicated situations it can take up to 20 calendar days) from the day when application is submitted.
The inverter you have chosen must comply with the requirements of standard LVS EN 50438 - Requirements for Micro-Generating Plants to be Connected in Parallel with Public Low-Voltage Distribution Networks and they must provide for the possibility to customise the network protection settings determined by Sadales tīkls. An application for a microgenerator test must be submitted to Sadales tīkls Metrology Laboratory (1 Šmerļa Street, Riga, LV-1160, contact phones: +371 67726476, +371 67726479) or another accredited laboratory.
A power plant connection is equipped with additional electrical network protection devices and provides two-way active and reactive electricity metering as well as remote reading of these metering data. When drafting the technical regulations, the potential impact of the generating power on the electrical network is evaluated for the power plant connection, and after the power plant is constructed, an inspection of the combined operation of the power plant and the electrical network is carried out, during which load quality measurements in the power plant connection point and other technological tests are performed. Only if the outcome of the inspection is successful, Sadales tīkls issues a permit to connect the power plant to the system.
In order to reduce the power plant’s impact on the operation of the electrical network and the load quality, Sadales tīkls determines the power plant connection point in the system according to the capacity of the power plant to be connected (see the table below).
|Aggregate rated electric capacity of the power plant||Connection point to the ST electrical network|
|up to 11 kWh*||0,4 kV power transmission line (PTL)|
|up to 250 kWh*||0,4 kV busbars|
|up to 2 MW*||6, 10, 20 kV power transmission line (PTL)|
|up to 10 MW*||6, 10, 20 kV busbars in a 110 kV substation|
|* the connection point may be changed if it is not possible to meet load quality requirements or the existing network load does not permit it.|