EAC certification for battery energy storage in Russia, Kazakhstan and Uzbekistan

Which EAEU regulations apply to battery energy storage

In the Eurasian Economic Union product requirements are set by common technical regulations. For storage cabinets and containers with a power conversion system, battery management system and auxiliary equipment, two regulations usually apply. We recommend confirming the final list for each model with an accredited certification body before testing starts.

TR CU 004/2011 covers electrical equipment rated from 50 to 1000 V AC and from 75 to 1500 V DC. Industrial cabinets and containers usually fall within this voltage range. 48 V telecom modules may sit below the lower limit, in which case their conformity route is determined separately.

EAC declaration or EAC certificate

EAEU regulations provide two forms of confirmation. A declaration of conformity is issued by the applicant on the basis of its own evidence and test reports from an accredited laboratory, and is registered in the unified register. A certificate of conformity is issued by an accredited certification body after sample testing and, in some schemes, after a production assessment followed by surveillance.

Which form is required depends on the product type and the regulation list. A scheme can cover a single batch or serial production. For recurring deliveries a serial scheme is usually chosen so that each batch does not need new tests.

Only a legal entity or individual entrepreneur registered in an EAEU country can be the applicant: the manufacturer, its authorised representative or the importer. A foreign factory cannot apply directly.

Documents and test reports for exporting BESS to Russia

The document package is assembled before testing. International certificates do not replace EAEU conformity assessment, but they serve as supporting evidence and speed up work with the laboratory. The documents we prepare for each model are listed on the design and procurement documents page.

• Technical description and datasheet: energy, power, voltage, operating temperature.
• Dimensional drawings and electrical diagrams.
• Operating manual in Russian.
• List of applied standards.
• International certificates for the model, for example IEC 62619, IEC 63056, UN 38.3.
• Test reports from an accredited EAEU laboratory.
• Customs (HS) classification for import clearance.
• EAC marking on the product or packaging.

Russian grid rules: GOST R 71521-2024 and Decree No. 810

Conformity assessment confirms product safety but does not settle grid connection. The grid company and the system operator check how the battery behaves under frequency and voltage deviations, how it is controlled and what data it exchanges. Since 2026 grid-scale batteries in Russia must take part in primary frequency regulation under GOST R 71521-2024 and Government Decree No. 810 of 01.07.2026.

The regulation characteristic is set in the converter and the energy management system, and tests are carried out at commissioning. As of 10.2026 there is no separate payment for primary frequency regulation by grid-scale batteries: it is performed as a connection requirement. The full list is on the grid requirements page.

• Voltage dip ride-through.
• Export limitation where grid export is not agreed.
• Power quality: harmonics, power factor, unbalance.
• Telemetry and data exchange via IEC 104, IEC 61850, Modbus TCP.
• Relay protection and revenue metering per the connection design.

Exporting BESS to Kazakhstan and Uzbekistan

Kazakhstan is an EAEU member, so conformity documents under union regulations are valid there as well. Grid connection requirements in Kazakhstan are set by the grid company and the site technical conditions.

Uzbekistan is not an EAEU member and applies its own national conformity system. EAEU documents are not valid there on their own, and the route for each item should be confirmed in advance. A behind-the-meter battery does not require a separate licence, and for pilot projects international certificates may be recognised. More on the rules in all three countries on the markets page.

How OS Power handles certification and documents

Modules and systems are assembled at the OS Power factory, and cells come from specialised partner plants. In the customer market, EAEU conformity assessment is carried out by the Russian company of the group acting as applicant for each item; for Uzbekistan the national route is followed. The process is described on the manufacturing and quality page.

EAEU documents are handed over with the delivery together with the operating manual. For designers and procurement, the datasheet, drawing and international certificates are sent on request immediately, and test reports at the procurement stage. Before delivery, samples can be tested on the customer site and to the customer method, including operation at sub-zero temperatures.

Step-by-step route for manufacturers and importers

Timing depends mostly on document preparation and the laboratory queue, so work usually starts before the supply contract is signed.

• Determine the HS code and the applicable regulations.
• Appoint an applicant registered in an EAEU country.
• Choose the form and scheme of confirmation with the certification body.
• Submit technical documentation and samples for testing.
• Obtain and register the declaration or certificate.
• Apply the marking and import with conformity documents.
• For a grid site, prepare documents for approval by the grid company.