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# CE Marking for Solar Power Systems and Inverters

Solar power systems — from residential rooftop inverters to commercial-scale grid-tied installations — require CE marking before sale or installation in the EU. The compliance landscape is more complex than standard consumer electronics because grid-tied inverters must meet electrical grid connection standards in addition to the usual LVD, EMC, and RED requirements.

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Applicable directives

## Which EU directives apply to solar power equipment

Solar inverters and related power conversion equipment are subject to multiple EU directives simultaneously. The combination depends on the specific product type.

Low Voltage Directive (LVD 2014/35/EU) applies to all grid-tied and off-grid inverters operating above 50 VAC or 75 VDC — which covers virtually all solar inverters. Primary safety standards include EN 62109-1 (general requirements for power converters for use in photovoltaic power systems) and EN 62109-2 (particular requirements for inverters). EN 62368-1 may also apply to control electronics within the inverter.

EMC Directive (2014/30/EU) covers electromagnetic emissions and immunity. EN 55011 and EN 55032 are commonly applicable, alongside EN 61000-3-2 (harmonic current limits). Immunity standards from the EN 61000-4-x series apply across all operating modes.

Radio Equipment Directive (RED 2014/53/EU) applies if the inverter or monitoring system includes wireless connectivity — Wi-Fi, Bluetooth, Zigbee, cellular, or proprietary RF for data monitoring. Wireless-enabled solar inverters are increasingly common; the RED testing requirement covers all intentional radio functions.

Grid connection

## EN 50549 and national grid connection requirements

Grid-tied solar inverters — those that feed power into the electricity distribution network — must meet grid connection requirements beyond standard LVD safety and EMC compliance. These requirements protect the electricity grid from abnormal inverter behavior, particularly the anti-islanding hazard where an inverter continues to energize a section of the grid during a network outage, creating a lethal hazard for utility workers.

EN 50549 (Requirements for generating plants to be connected in parallel with distribution networks) is the EU harmonised standard for grid connection of distributed generation including solar inverters. EN 50549-1 covers low-voltage connections (up to 1 kV); EN 50549-2 covers medium-voltage connections. Compliance with EN 50549 is required alongside LVD and EMC compliance for grid-tied inverters.

Important national variation: while EN 50549 provides a harmonised European framework, individual EU member states retain the right to impose additional or more stringent grid connection requirements. Germany's VDE-AR-N 4105 and France's requirements from Enedis may impose additional requirements beyond EN 50549 compliance. Products intended for specific member state markets should be verified against national network operator requirements.

PV system compliance

## Photovoltaic modules, string boxes, and system-level CE marking

CE marking applies to individual components placed on the EU market. Photovoltaic modules are covered by LVD and IEC 61730/EN 61730 series for safety, IEC 61215 for performance. String combiner boxes and DC distribution equipment are subject to LVD and EMC. If the solar system includes battery storage, IEC 62619 (safety for stationary lithium-ion battery systems) and the EU Battery Regulation apply to battery systems above relevant capacity thresholds.

The installer bears responsibility for ensuring the complete installation meets applicable building regulations, national electrical installation standards (IEC 60364 series), and fire safety requirements. CE marking covers the components; the installation must comply with national regulations separately.

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## Frequently asked questions

### What standards apply to solar inverter CE marking?

Primary standards include EN 62109-1 and EN 62109-2 (safety for PV power converters under LVD), EN 55011 or EN 55032 (EMC emissions), EN 61000-3-2 (harmonic current limits), and EN 50549-1/2 (grid connection requirements for LV/MV connected generation). Additional standards from the EN 61000-4 immunity series apply. Wireless-enabled inverters also need ETSI harmonised standards under RED.

### Is the Ecodesign Regulation mandatory for solar inverters?

Ecodesign requirements apply to specific regulated product groups. Solar inverters as a category do not currently have their own Ecodesign regulation in force, but power conversion equipment within inverters may be subject to existing Ecodesign measures. The EU is developing expanded Ecodesign regulations for power electronics under the ESPR framework.

### Do solar monitoring systems with Wi-Fi need separate RED compliance?

Yes. Any device that incorporates intentional radio transmission — including Wi-Fi-enabled solar monitoring gateways, Bluetooth-connected microinverters, and cellular data loggers — must comply with the Radio Equipment Directive as well as LVD and EMC. The complete monitoring system including the wireless interface must be CE marked under RED.

### Is a grid-tied solar inverter self-certifiable or does it require a Notified Body?

Most grid-tied solar inverters can be self-certified under Module A. The manufacturer conducts the conformity assessment against applicable harmonised standards and issues the EU Declaration of Conformity. Notified Body involvement is not required for LVD, EMC, or RED for these products under standard conformity assessment procedures.

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Related guides

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*   [EU Battery PassportThe EU Battery Regulation (2023/1542) mandates Battery Passports for industrial batteries and EV batteries from February 2027.](/guides/eu-battery-passport)
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Educational resource only. Verify current requirements with qualified compliance professionals before making regulatory decisions.