Cluster B: Grid Integration & System Services

Grid Charges for Energy Storage — Expert Assessment by PV-BESS-Assessor

📚 Wissenschaftliche Dienste Bundestag📅 2025🌎 Cluster B
Legal and regulatory overview of the grid charge framework for energy storage systems. Explains the current legal situation, exemption provisions, and open reform questions.
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Technical Classification

Definition

Report by the Research Services of the German Bundestag on the regulatory status quo of grid charge treatment for energy storage systems. A parliamentary-objective presentation of the legal framework.

Technical Background

Documents the current legal framework: EnWG Section 118(6) (storage grid charge exemption until 2026), legal classification of storage systems (neither generator nor consumer — sui generis), EU requirements under Art. 18(2) Electricity Directive. Parliamentary source with particular objectivity and citability.

Risks

Point-in-time presentation: legal situation may change through legislative amendment. Temporary exemption under Section 118(6) EnWG: extension not guaranteed. Diverging interpretations by state regulatory authorities.

Standards & Regulations

EnWG Sections 21, 21a, 118(6); StromNEV Sections 17, 19; ARegV; EU Electricity Directive 2019/944 Art. 18(2); BNetzA regulatory practice.

Assessment Procedures

Legal-dogmatic analysis. Systematic interpretation of statutory texts. Evaluation of BNetzA regulatory practice. Comparison with EU legal requirements.

Typical Deficiencies

No prognostic component (purely status quo presentation). No recommendations for action. Limited timeliness with dynamic legislation. No quantification of economic impacts.

Relevance for Investors, Insurers & Operators

Investors: officially objective reference for regulatory due diligence. Insurers: legal basis for assessing regulatory risks. Operators: citable source for position papers and funding applications.

Assessment by PV-BESS-Assessor

The Research Services of the Bundestag provide a compact, objective summary of the regulatory situation. As a parliamentary document, it reflects the current state of legislation.

Impact on Investors

Regulatory clarity on the current legal framework. Parliamentary source as an indicator of legislative direction.

Impact on Assessments

As an official source, particularly citable in assessments and position papers. PV-BESS-Assessor references it when presenting the regulatory framework.

Technical Risks

Point-in-time — the framework can change rapidly through legislation. No prognostic component.

Regulatory Significance

Direct regulatory reference: Section 118(6) EnWG, storage grid charge exemption, expiration and successor regulations.

Conclusion by PV-BESS-Assessor

PV-BESS-Assessor uses the Bundestag report as an official reference for the regulatory status quo. Currency should be verified when referencing.

PV-BESS-Assessor Expert Team
PV-BESS-Assessor | Prosperus GmbHTUV-certified experts for photovoltaics & battery storage

Last updated: 16 June 2026