Brussels demands Spain manage solar panel waste

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The European Commission has urged Spain to finalize its national legislation regarding solar panel waste.

Manufacturers will be required to cover the costs of managing this type of waste.

Madrid has two months to respond to the request.

Failure to comply could result in the case being referred to the European Court of Justice.

Brussels has intensified pressure on Spain to complete the transposition of EU rules on waste from electrical and electronic equipment into domestic law, particularly the provisions determining financial responsibility for the management of solar panels once they cease to function.

The EU executive body sent a reasoned opinion to Spain on Thursday, a formal step in an infringement procedure. The Commission considers that Spain’s implementation of the Waste Electrical and Electronic Equipment Directive, commonly known as the WEEE Directive, remains incomplete.

The European Commission’s action extends beyond Spain. The same reinforced request has been sent to Bulgaria, the Czech Republic, Cyprus, Luxembourg, Poland, and Romania. These seven member states have not informed Brussels of all the necessary measures required to fully transpose the changes introduced in European legislation into their national legal frameworks.

Brussels has given Spain two months to provide a response regarding the management of solar panel waste.

The countries identified in the notice now have a two-month window to respond to the European Commission and implement the outstanding measures. Should Brussels determine after this period that the deficiencies have not been rectified, it retains the option to refer the case to the Court of Justice of the European Union.

This reasoned opinion marks an advanced stage in the EU’s infringement proceedings. Prior to reaching this juncture, the Commission had already opened the file in November 2025 by dispatching a letter of formal notice to the seven nations involved. In that correspondence, the executive body warned that it had not received confirmation of a complete transposition of the amending directive.

Member states were required to finalize this process by October 9, 2025. Nevertheless, Spain and the other six affected countries have failed to demonstrate to European institutions that they have enacted and notified all the regulations necessary to give full effect to the reform.

The cost of processing solar panels

The core of the dispute centers on the financial liability for waste generated by solar panels. European regulations are designed to ensure that manufacturers bear the costs associated with the collection, processing, recovery, and disposal of such materials.

The primary aim is to prevent the burden of managing equipment that has reached the end of its useful life from falling on public authorities, taxpayers, or consumers at large. In the context of solar installations, this clarification carries particular weight given the rapid expansion of photovoltaic energy and the imperative to plan for the treatment of solar panels once they are replaced, deteriorate, or are taken out of service.

The Waste Electrical and Electronic Equipment (WEEE) Directive establishes a framework to prevent the generation of electrical and electronic waste and, where such waste already exists, to promote alternatives to its disposal. These alternatives include reuse, recycling, material recovery, and the more efficient use of resources.

The regulation aims to mitigate the environmental footprint and potential health hazards associated with the improper disposal or inadequate management of electrical and electronic equipment. It also seeks to promote circular models that allow the materials contained in these products to re-enter the production chain.

A reform stemming from a court ruling

The pending transposition of the amended rules traces back to a 2022 ruling by the Court of Justice of the European Union. Following that judicial decision, the European Union revised the Waste Electrical and Electronic Equipment Directive, which had been originally adopted in 2012, in 2024.

The reform aims to ensure that, across all EU member states, producers bear responsibility for the costs associated with managing solar panel waste. This obligation also extends to certain products that were placed on the market before the 2012 Directive came into force.

The European legislative intervention was undertaken to align regulations with the Court of Justice’s interpretation and to prevent discrepancies among countries regarding which entities must finance the treatment of such waste. According to the European Commission, incomplete or uneven application of these rules can create uncertainty for businesses, public authorities, and waste management operators.

The regulatory update also includes clarifications regarding the periods to which the 2012 regulation does not extend. To strengthen legal certainty, the amending directive specifies that the original norm is not applicable to solar panels placed on the market between August 13, 2005, and August 13, 2012.

The provisions likewise do not cover open-market electrical and electronic equipment sold between August 13, 2005, and August 15, 2018. These temporal boundaries are designed to prevent ambiguity concerning the retroactive application of obligations and to define precisely which products fall within the scope of the financial responsibility regime.

Harmonization of national regulations

The European Commission considers the full transposition of regulatory changes into the domestic law of each member state essential for preserving legal certainty. This adaptation must unequivocally clarify which entities bear specific costs for the management and disposal of waste, in accordance with the ruling of the Court of Justice of the European Union.

Bruselas argues that transposition is also necessary to ensure the homogeneous application of European rules. If each member state regulates producer responsibility differently, disparities could emerge among companies operating in different European markets, and difficulties would arise in applying uniform environmental criteria across the Union.

Spain now has two months to submit a response to the reasoned opinion and communicate the measures required to complete the adaptation of the Directive. The same requirement applies to Bulgaria, the Czech Republic, Cyprus, Luxembourg, Poland, and Romania.

If these seven countries do not provide a satisfactory solution within that period, the European Commission may take the next procedural step and refer the case to the Court of Justice of the European Union.