Solaranlage planen für Einsteiger: Module & kWp fürs eigene Dach berechnen

Solaranlage planen für Einsteiger: Module & kWp fürs eigene Dach berechnen

Planning a Solar System for Beginners: Calculate Modules & kWp for Your Roof

by Felix Goldbach · View the channel on PSI

Applied Sciences & Engineering Energy THVAlternative and renewable energy sources and technologyTHVSSolar power
🎙 Felix Goldbach 👥 84K 📅 September 12, 2026 ⏱ 16 min 👁 22 📄 tutorial 🧭 2026-09-12
Available in: English (current) Français

Keywords

SolaranlagekWpPV-PlanerDachflächeModulplanung

Summary

The video demonstrates how to estimate the size of a rooftop solar installation using a free online PV planning tool. The presenter walks through the process step by step, starting with entering the address and defining roof surfaces, accounting for dormers and chimneys, and selecting module orientation (horizontal or vertical). He explains the impact of roof pitch and module size on total kWp, using his own east-west facing roof as an example. The tool also provides yield forecasts, cost estimates, and financial return calculations. The presenter notes that drone-based surveys offer greater accuracy but that even these can differ from actual installation conditions. He also mentions the possibility of removing a chimney to fit more modules. The video ends with an invitation to request quotes from partner installers and a call to subscribe.

133 words

Critical Evaluation

Value of the Information & Strength of the Argument

The video provides practical value for beginners by clearly demonstrating a straightforward method to estimate solar capacity using an accessible digital tool. The argumentation is logical and sequential, he explains the rationale behind choosing horizontal versus vertical module placement and adjusting for roof obstructions. However, the argumentation is limited to the tool’s logic and does not delve into technical nuances or alternative design approaches. The presenter’s claims are reasonable but not backed by external references, and the tool itself is a proprietary product, which introduces a commercial bias. The step-by-step visuals help understanding, but the depth is shallow for more advanced users.

Scientific Rigor, Source Quality, Title Accuracy

The video’s scientific rigor is moderate. The methodological advice (using roof geometry, considering obstructions) is sound and practical, but the presenter relies solely on his own tool and does not cite any industry standards, research studies, or official guidelines. The sources listed in the description are mostly commercial or promotional (the tool, partner installer contact, eco-electricity provider, etc.). The title accurately reflects the content: it is exactly what is shown. No comments were provided for analysis.

193 words

Title / Content Match

The title accurately describes the content: a beginner-friendly guide to estimating modules and kWp for a roof using a specific planning tool.

Quality & Reliability

7/10

The video is a practical tutorial showing the use of a PV planning tool. The presenter gives clear step-by-step guidance and mentions professional drone-based surveys for higher accuracy. However, the content is largely promotional for the presenter's own tool and partner installers, limiting its impartiality. Numerical examples are illustrative and vary with roof specifics, but the methodology is sound.

Chapters

Cited Sources

Contribution & Novelties

This video offers a practical, step-by-step walkthrough of using a free, publicly available tool to estimate rooftop solar potential, which is a helpful starting point for homeowners. It emphasizes the impact of roof features (dormers, chimneys, orientation) and module orientation on the final capacity. However, it does not provide original research or data; its novelty is limited to the demonstration of one particular tool and the presenter’s personal project example.

Pour aller plus loin :

  • Photovoltaic system — General overview of PV systems and components.
  • Roof orientation and pitch — Technical principles on how roof orientation affects yield.
  • Solar panel efficiency — Understanding module power and efficiency parameters.

108 words

Radar Profile

The radar profile shows a moderate peak in 'quantité d'information' (7) reflecting the detailed step-by-step demonstration, while 'qualité d'information' and 'fiabilité globale' (6 each) indicate that the content is useful but partly promotional. 'Niveau technique' (5) aligns with a beginner-to-intermediate tutorial.

Reliability 6/10