Meine Anlage liefert weniger Strom als versprochen. Habe ich Ansprüche?

Das hängt vom Ausmaß und von der Ursache ab. Entscheidend ist, was Ihnen vertraglich zugesagt wurde und worauf die Ertragsprognose beruhte. Weicht die Leistung erheblich ab, kommen Gewährleistung, Minderung oder Schadensersatz in Betracht.

Welche Unterlagen brauche ich?

Kaufvertrag, Angebot, die Ertrags- oder Wirtschaftlichkeitsberechnung, Rechnungen, Zahlungsnachweise sowie Prospekte, E-Mails oder Nachrichten des Verkäufers. Je vollständiger, desto präziser die Einschätzung.

Es wurden andere Module verbaut als vereinbart. Was gilt dann?

Entscheidend ist nicht nur, dass die Anlage funktioniert, sondern auch, was Ihnen verkauft und was tatsächlich eingebaut wurde. Weicht die Ausführung von der Vereinbarung ab, kommen Gewährleistungs- und Schadensersatzansprüche in Betracht.

Was ist, wenn die Wirtschaftlichkeitsberechnung von Anfang an unrealistisch war?

Dann stellt sich die Frage, ob über wesentliche Punkte falsch informiert wurde. Fehlerhafte Angaben zu Ausrichtung, Verschattung, Anlagenleistung, Speicher, Eigenverbrauch oder Strompreisentwicklung können erhebliche wirtschaftliche Folgen haben.

Welche Fristen muss ich beachten?

Gewährleistungsansprüche unterliegen der Verjährung. Wann die Frist beginnt und wie lange sie läuft, hängt von der Vertragsart ab. Eine frühzeitige Prüfung ist deshalb sinnvoll.

Kann der Vertrag rückabgewickelt werden?

Das ist im Einzelfall zu prüfen. Je nach Sachverhalt kommen Nachbesserung, Minderung, Schadensersatz oder eine Rückabwicklung in Betracht.

Solarrecht – Probleme mit Ihrer Photovoltaikanlage

+49 211 / 819770

Inquiries

Why an exam is worthwhile

Many homeowners purchased their photovoltaic systems based on concrete promises: high electricity yields, significant savings, short amortization periods, and high-quality technical components. But what if reality is different? Then a legal review can be advisable.

You don't have to accept every deviation.

There is a significant difference between a normal fluctuation and a technically or economically flawed planned system.

The way it was sold is also crucial.

It's not just the technology that matters. The legal basis on which the system was sold to you can also be significant.

Pay attention to deadlines

Warranty claims expire. The sooner the claim is reviewed, the stronger your position.

Specialization in Consumer Law

Over 40,000 mandates, more than 25,000 lawsuits. We enforce consumer economic rights.

Submit a request

Your investment is not meeting the promises — your claims

You don't have to accept every deviation. Depending on the individual case, the following may need to be examined:

Whether rectification or remedy of defects can be demanded

Whether a reduction in the purchase price is an option

Whether claims for damages exist

Whether the contract can be reversed

Whether the yield or profitability calculation was reliable

Whether there were errors in advice or mediation.

Benefit from our experience with over 40,000 cases. We will review your case personally.

Check case now

Are you affected?

Do you recognize yourself in this description? We will check what claims you are entitled to.

Significantly insufficient electricity yield

The plant is producing significantly less electricity than predicted.

Defective or weak modules

Solar panels fail or do not reach the promised performance.

Inverter or storage

Problems with inverters or battery storage cause yields to plummet.

Components other than agreed

Inferior or different components were installed than those promised in the contract.

Faulty assembly or planning

Assembly errors or technical misplanning, for example regarding alignment and shading.

The calculation doesn't add up.

Savings, self-consumption and amortization fall significantly short of the calculation.

Have your case reviewed now

Your lawyers for purchase and works contract law

We review purchase and work contracts, payment flows, manufacturer specifications, and the consulting situation.

Technical and legal review

We review the contract, commitments and actual performance and classify the deviation legally.

Digital mandate acceptance

Operating nationwide. Mandate acceptance and correspondence are entirely digital. Online file access available 24/7.

Legal enforcement

Consistent enforcement against sellers, installers, or other responsible parties.

Your rights in 3 steps

Our structured process if your solar system doesn't live up to its promises.

Case review

Analysis of purchase agreement, earnings forecast, profitability calculation and actual earnings.

Legal strategy

Individual legal strategy — rectification, reduction, compensation or rescission.

enforcement

Consistent enforcement against seller, installer or manufacturer.

Hire us now

Frequently Asked Questions

Answers to the most important questions about defects and reduced yield of your solar system.

My system is producing less electricity than promised. Do I have any recourse?

That depends on the extent and the cause. The decisive factors are what was contractually agreed upon and what the earnings forecast was based on. If the performance deviates significantly, warranty claims, price reductions, or damages may be considered.

What documents do I need?

Purchase agreement, offer, profitability or yield calculation, invoices, proof of payment, as well as brochures, emails or messages from the seller. The more complete, the more precise the assessment.

Different modules were installed than agreed upon. What rules apply then?

It's not just about the system working, but also about what you were sold and what was actually installed. If the installation deviates from the agreement, warranty and damage claims may apply.

What if the cost-benefit analysis was unrealistic from the start?

The question then arises whether incorrect information was provided regarding essential points. Incorrect information concerning orientation, shading, system performance, storage capacity, self-consumption, or electricity price trends can have significant financial consequences.

What deadlines do I need to observe?

Warranty claims are subject to a statute of limitations. When the limitation period begins and how long it lasts depends on the type of contract. Therefore, it is advisable to review your contract early.

Can the contract be reversed?

This must be examined on a case-by-case basis. Depending on the circumstances, options such as rectification, price reduction, compensation for damages, or rescission of the contract may be considered.

Submit a request

Is your solar system not living up to its promises?

Have your case reviewed now

your concern

Do you have legal protection insurance?

information about you

Documents for granting mandates

filing system

processing status

contact

UTM patameter