Solar Investors Guide – Minimising risks

12/09/2025 | Print view

© Tobias Langner Branding & Design

The simpler the setup, the more modules find themselves leaving the premises

Investing in solar parks, expansive rooftop systems and cutting-edge battery storage requires patience and a genuinely long-term outlook. Such projects are generally designed to run for twenty years or more, making it crucial to safeguard them against a broad spectrum of risks over their lifespan – an important issue that is still too often neglected.

This issue of our Solar Investors Guide focuses on the topic of risk. Our goal is not to alarm, but to raise awareness and provide practical, actionable guidance to help manage these challenges professionally.

We pay particular attention to technical aspects and the exceptional quality of the components used. TÜV Rheinland’s inspection engineers work worldwide, assessing and securing solar parks. Time and again, they find that durability and high quality are not given enough consideration when selecting solar modules, inverters and storage batteries. This oversight can have costly, long-term consequences. As the saying goes, buy cheap, buy twice.

Low prices, lasting regrets

We also share advice on protecting your investment from unauthorised access – whether from thieves targeting valuable metal components such as cables or inverters, or from criminals seeking to access operational data and plant controls via the internet. Robust cybersecurity is becoming ever more important and is now required by both grid operators and authorities. The surge in cyberattacks over the past three years underscores just how critical this issue has become.