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Terms & Conditions

Last updated: April 2026

Terms for End Customers

For private individuals and businesses

§ 1 Scope and Contracting Parties

1.1 These Terms & Conditions (hereinafter "T&C") apply to all contracts concluded between Niklaus Olsen, operator of the PV-Energie-Planer platform (hereinafter "Operator" or "we"; address see Legal Notice) and users of the platform (hereinafter "End Customers") regarding the use of the SaaS platform.

1.2 The platform is aimed at both consumers (natural persons using the platform for private purposes) and entrepreneurs (natural or legal persons using the platform in the course of their commercial or self-employed activity).

1.3 Deviating terms of the End Customer shall not be recognised unless the Operator expressly agrees in writing.

§ 2 Description of Services — Intermediary Role of the Operator

Important notice: The Operator acts solely as an intermediary. It is not a contracting party between End Customers and Installers and has no influence on the conclusion, content, or performance of any contract between these parties.

2.1 The Operator provides a web-based SaaS platform (hereinafter "Platform") through which End Customers can:

  • calculate and visualise a PV roof planning (photovoltaic roof planning),
  • submit a free quote request, which is reviewed by the Operator and forwarded to suitable registered PV installers.

2.2 The Operator merely facilitates contact and data transfer between End Customers and Installers. The Operator:

  • is not a party to any contract between End Customers and Installers,
  • does not guarantee the quality, completeness, or accuracy of quotes provided by Installers,
  • has no influence on the conclusion, content, execution, or settlement of any contract between End Customer and Installer,
  • is not liable for acts, omissions, or services of Installers registered on the platform.

2.3 Any contractual agreement for installation, delivery, or other services related to the PV system is concluded exclusively between the End Customer and the respective Installer.

§ 3 Registration and User Account

3.1 Use of the platform requires registration. The End Customer is obliged to provide truthful, complete, and current information.

3.2 The End Customer is responsible for keeping their login credentials confidential and must inform the Operator immediately if there are indications of misuse of the account.

3.3 There is no entitlement to registration or use of the platform. The Operator reserves the right to refuse registration without giving reasons.

§ 4 Use and Fees

4.1 Use of the platform by End Customers (both private individuals and businesses) is completely free of charge. This includes all features such as PV planning, yield calculation, profitability analysis, the 3D roof planner, PDF export, and submitting quote requests to registered installers.

4.2 There is no entitlement to a minimum number of Installers or to being contacted by Installers. Quote requests are reviewed by the Operator and forwarded to suitable installers.

4.3 For Installers and enterprise customers (entrepreneurs), a separate section of these T&C applies (see Section B "T&C for Installers").

§ 5 Right of Withdrawal

As the use of the platform is completely free of charge for End Customers (consumers pursuant to § 13 BGB) and no paid contract is concluded, there is no statutory right of withdrawal pursuant to §§ 312g, 355 BGB.

Should paid services for consumers be introduced in the future, the Operator will expressly inform about the right of withdrawal and its consequences before conclusion of the contract. The current withdrawal instructions can be found at Withdrawal Policy.

§ 6 Consents Before Data Sharing

6.1 Before submitting a quote request, you will be asked to actively grant the following consents:

  • T&C & Privacy: You confirm that you have read and agree to these T&C and our Privacy Policy.
  • Data sharing with Installers: You consent to your planning data (system details, location, contact data) being reviewed by the Operator and shared with suitable Installers when you submit a quote request.

6.2 Consent to data sharing is voluntary. Without it, however, you cannot send quote requests via the platform.

6.3 Your consents are logged with timestamps and can be viewed under "My Area".

§ 7 Data Sharing with Installers

7.1 By submitting a quote request and providing separate, active confirmation, the End Customer expressly consents to their planning data (including any personal data such as name, address, contact details, and planning information) being reviewed by the Operator and forwarded to suitable Installers registered on the platform.

7.2 Consent may be withdrawn at any time with effect for the future (see Privacy Policy).

7.3 The Operator assumes no liability for the use of transmitted data by Installers after transmission, insofar as this is not within the Operator's area of responsibility.

§ 8 Obligations of the End Customer

8.1 The End Customer undertakes to use the platform only for lawful purposes and in particular:

  • not to provide false or misleading information,
  • not to post content that infringes the rights of third parties,
  • not to carry out automated access (e.g. scraping),
  • not to use the platform for spam or unsolicited advertising.

§ 9 Platform Availability

9.1 The Operator endeavours to ensure the highest possible availability of the platform but cannot guarantee this. Maintenance work, technical disruptions, or force majeure may lead to temporary restrictions.

9.2 There is no entitlement to uninterrupted availability of the platform.

§ 10 Liability

10.1 The Operator is liable without limitation for damages resulting from injury to life, body, or health, as well as for damages caused intentionally or through gross negligence.

10.2 In cases of simple negligence, the Operator is only liable for breach of essential contractual obligations (cardinal obligations) and only up to the amount of foreseeable, typical damage.

10.3 The Operator is not liable for:

  • the conclusion, content, or performance of contracts between End Customers and Installers,
  • the quality or reliability of Installers registered on the platform,
  • damages arising from incorrect or incomplete information provided by the End Customer,
  • the content or availability of linked external websites.

10.4 The calculations of the platform are for informational purposes only and do not replace professional advice. We assume no liability for the accuracy of results or decisions based on them.

10.5 The limitations of liability apply accordingly in favour of the Operator's vicarious agents.

§ 11 Term and Termination

11.1 The usage relationship begins with registration and is valid for an indefinite period. It may be terminated by either party at any time without giving reasons.

11.2 The right to extraordinary termination for good cause remains unaffected. Good cause for the Operator exists in particular if the End Customer violates these T&C.

11.3 After termination of the usage relationship, the End Customer's planning data will be handled in accordance with the Privacy Policy.

§ 12 Account Deletion

12.1 The End Customer may irrevocably delete their account at any time under "My Area" → "Delete Account". All personal data (projects, roof plans, quote requests, messages, payment history) will be deleted. Anonymised analytics data (e.g. page views) will be retained but can no longer be attributed to the End Customer.

12.2 Use of the platform is free of charge for End Customers. Upon account deletion, all pending quote requests will be cancelled.

§ 13 Changes to T&C

13.1 The Operator reserves the right to amend these T&C with effect for the future. Changes will be communicated to the End Customer by email or notification on the platform at least 30 days before they take effect.

13.2 If the End Customer does not object to the amended T&C within 30 days of receipt of the notification, the amended T&C shall be deemed accepted. The Operator will expressly draw attention to this consequence in the notification.

13.3 For consumers, § 13.2 applies only insofar as legally permissible.

§ 14 Final Provisions

14.1 The law of the Federal Republic of Germany applies, excluding the UN Convention on Contracts for the International Sale of Goods (CISG). For consumers, this applies only insofar as the protection granted by mandatory provisions of the law of the consumer's country of residence is not withdrawn.

14.2 The place of jurisdiction for all disputes arising from or in connection with this contract is Flensburg, insofar as the End Customer is an entrepreneur.

14.3 Should individual provisions of these T&C be or become invalid, the validity of the remaining provisions shall remain unaffected.

14.4 The Operator is not obliged and not willing to participate in dispute resolution proceedings before a consumer arbitration board, unless legally required.

§ 15 Contact

For questions about these T&C, contact us at: info@pv-energie-planer.de

Niklaus Olsen · PV-Energie-Planer · info@pv-energie-planer.de

Terms for Installers

§ 1 Scope and Contracting Parties

1.1 These T&C apply to the contract between Niklaus Olsen, operator of the PV-Energie-Planer platform (hereinafter "Operator"; address see Legal Notice) and registered installers/solar installers (hereinafter "Installer") regarding the use of the SaaS platform PV-Energie-Planer.

1.2 The Installer acts exclusively as an entrepreneur. A right of withdrawal pursuant to § 312g BGB does not exist.

1.3 Deviating terms of the Installer shall not be recognised unless the Operator expressly agrees in writing.

§ 2 Description of Services — Intermediary Role of the Operator

Important notice: The Operator acts solely as an intermediary. It is not a contracting party between Installer and End Customer and has no influence on the conclusion, content, or performance of any contract between these parties.

2.1 The Operator provides the Installer with access to a web-based platform through which:

  • End Customers can calculate PV roof plans and submit quote requests,
  • the Operator reviews, classifies, and forwards incoming requests as pre-qualified leads to suitable Installers,
  • the Installer can use platform tools (profile, project overview, 3D roof planner) free of charge.

2.2 The Operator exclusively facilitates data contact. It is neither client nor contractor, not a contracting party between End Customer and Installer, and assumes no liability for the conclusion, content, or settlement of any contracts.

2.3 The Installer has no entitlement to a minimum number of leads or orders.

§ 3 Registration and Profile

3.1 Registration on the platform requires that the Installer can demonstrate a registered trade or commercial activity in the field of photovoltaics. The Operator reserves the right to verify this.

3.2 The Installer is obliged to provide truthful, complete, and current information during registration and profile maintenance, in particular regarding:

  • Company name and legal form,
  • Trade licence / chamber of crafts registration (if required),
  • Contact details,
  • Set geographic radius.

3.3 The Installer is responsible for keeping their login credentials confidential.

§ 4 Lead Mediation and Enquiry Reception

4.1 The Operator reviews incoming quote requests from End Customers, classifies them by size, timeline, and region, and forwards them as pre-qualified leads to suitable Installers. The Installer may set a geographic search radius as a preference for lead allocation. Final allocation is determined by the Operator.

4.2 Leads may be mediated in "Shared" mode (to multiple Installers) or "Exclusive" mode (to a single Installer). The classification and mode are determined by the Operator.

4.3 The Installer is not obliged to accept offered leads. If no contract is concluded between Installer and End Customer, the End Customer has no claims against the Operator.

4.4 Upon receiving a lead, the Installer becomes the controller for the personal data of the End Customer contained in the lead pursuant to GDPR. They undertake to use this data exclusively for creating a quote and not to pass it on to third parties.

§ 5 Fees — Pay-per-Lead

5.1 Registration on the platform and use of platform tools (profile, project overview, 3D roof planner, directory listing) are free of charge for the Installer.

5.2 For the mediation of pre-qualified End Customer leads, a one-time fee per lead is charged (pay-per-lead). The amount depends on the lead class (Standard Private, Premium Private, Commercial Small, Commercial Medium, Industrial), the mediation mode (Shared or Exclusive), and a regional multiplier. The current price list is available at Pricing.

5.3 The lead price is transparently displayed to the Installer before acceptance. Acceptance of the lead constitutes the purchase agreement for the lead.

5.4 All prices are exclusive of statutory VAT.

5.5 Payments are processed via the payment provider Mollie. In the event of payment default, the Operator reserves the right to suspend access to further leads.

5.6 No success fee or commission on the contract concluded between Installer and End Customer is charged.

§ 5a Lead Quality and Refunds

5a.1 The Operator endeavours to mediate only quality-checked leads. No guarantee is given for the End Customer's readiness to purchase or availability.

5a.2 Refund-eligible leads. The Installer may request a refund within 14 days of receiving a lead if any of the following reasons apply:

  • Fake data: The contact details provided by the End Customer (name, address) are obviously false or fabricated.
  • Wrong region: The actual project location is outside the Installer's set radius and was incorrectly assigned.
  • No owner / no decision-making authority: The End Customer is neither the property owner nor has decision-making authority for the installation of a PV system.
  • No interest in a quote: The End Customer states that they did not want a quote or did not submit the request themselves.
  • Duplicate: The same End Customer (identical address or identical contact details) was already mediated to the Installer as a lead within the last 90 days.
  • Invalid contact details: The telephone number and/or email address provided are demonstrably invalid (unreachable, non-existent).

5a.3 Non-refundable leads. No refund claim exists if:

  • the End Customer chooses a different provider,
  • the End Customer is not immediately reachable by phone,
  • the project is postponed by the End Customer,
  • the Installer fails to contact the End Customer or does not do so in a timely manner.

5a.4 Refund requests must be submitted in writing by email to info@pv-energie-planer.de, stating the lead number and the reason. The Operator will review the request and communicate the result within 10 business days.

5a.5 In the case of a justified refund, the lead price will be fully refunded (credit or repayment, at the Operator's discretion). Partial refunds are excluded.

§ 6 Data Protection and Handling of End Customer Data

6.1 The Installer receives access to personal data of End Customers (in particular name, address, contact details, planning data) through platform use. They undertake to:

  • use this data exclusively for the purpose of creating quotes and making contact pursuant to the respective enquiry,
  • comply with applicable data protection regulations (in particular GDPR),
  • not pass data on to unauthorised third parties,
  • delete data after purpose fulfilment or at the End Customer's request.

6.2 The Installer is independently responsible for compliance with their data protection obligations. The Operator may provide a data processing agreement (DPA) pursuant to Art. 28 GDPR.

§ 7 Obligations and Conduct of the Installer

7.1 The Installer undertakes to:

  • not make false or misleading statements to End Customers,
  • not harass End Customers or send unsolicited advertising,
  • not use the platform for unfair business practices,
  • meet applicable trade and commercial law requirements.

7.2 The Operator reserves the right to suspend or delete Installer accounts in the event of violations of these obligations.

§ 8 Liability

8.1 The Operator is liable without limitation for damages resulting from injury to life, body, or health, as well as for damages caused intentionally or through gross negligence.

8.2 Otherwise, the Operator is only liable for breach of essential contractual obligations (cardinal obligations) and only up to the amount of foreseeable, typical damage.

8.3 The Operator is not liable for:

  • the conclusion of contracts between Installer and End Customers,
  • the accuracy or completeness of planning data submitted by End Customers,
  • technical failures or delays in data transmission,
  • acts or omissions of the End Customer.

§ 9 Term and Termination

9.1 The usage relationship begins with registration and is valid for an indefinite period. It may be terminated by either party at any time without giving reasons.

9.2 Leads already purchased and paid for remain in the Installer's possession after termination. Open, unpaid leads will be cancelled.

9.3 The right to extraordinary termination for good cause remains unaffected.

9.4 After termination, the Installer's access to the platform will be revoked.

§ 10 Changes to T&C

10.1 The Operator reserves the right to amend these T&C with 30 days' notice by email. If the Installer does not object within this period, the amended T&C shall be deemed accepted. This consequence will be expressly highlighted.

§ 11 Final Provisions

11.1 German law applies, excluding the UN Convention on Contracts for the International Sale of Goods. The place of jurisdiction is Flensburg.

11.2 Should individual provisions be invalid, the validity of the remaining provisions shall remain unaffected.

Niklaus Olsen · PV-Energie-Planer · info@pv-energie-planer.de

Methodik & Datenquellen

Die Berechnung des PV-Ertrags basiert auf einem stündlichen physikalischen Modell mit den folgenden Open-Source-Bibliotheken und öffentlichen Datenquellen.

Berechnungs-Engine

pvlib-python — der NREL/Sandia-Industriestandard für PV-Simulationen. Lizenz: BSD-3-Clause.

  • POA-Bestrahlung pro Modulfläche (Hay-Davies-Modell)
  • Modul-Zelltemperatur (SAPM, Open-Rack-Glas/Glas)
  • Stündliche AC-Leistung mit Temperaturkoeffizient und Wechselrichter-Klipping

Strahlungsdaten

PVGIS (Photovoltaic Geographical Information System) der Europäischen Kommission.

Quelle: PVGIS-SARAH3 / ERA5, © European Union, 2001–2024.

Lokale Tagesertrags-Charts

Echte Messwerte der nächsten Wetterstation — Deutscher Wetterdienst (DWD), SARAH-2-Datensatz.

Privacy

Beim ersten Aufruf einer Region werden anonymisierte Standortkoordinaten (auf ca. 5 km gerundet) an die PVGIS-API der EU-Kommission übermittelt. Die Daten werden anschließend gecacht — keine wiederholte Übertragung pro Berechnung.

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