Guest Lectures: Matthias Futterlieb

On Tuesday, October 21 2025, we welcomed Matthias Futterlieb, who gave a lecture on plug-in solar modules and their contribution to the energy transition.
It became clear how low-threshold technologies, exemplified by plug-in solar devices, enable participation in the energy transition.
Although these devices do not make a major contribution to the overall capacity of renewable energy, they lower the barrier to engaging with solar power. They encourage awareness of sustainable consumption and strengthen self-sufficiency.
Particularly important is the legal framework, which has been significantly simplified in recent years. The straightforward registration in the national market data register and the possibility of putting devices into operation immediately have accelerated their spread.
As a result, plug-in solar units are no longer tied to bureaucratic hurdles but can be installed and operated with ease.
Looking more closely at the ecological balance, it becomes evident that the energy required for production is offset after about two years. Over their lifetime, the devices make a clear contribution to reducing greenhouse gas emissions.
Futterlieb also addressed possible rebound effects. Some households consume more electricity after installing a PV system because the self-generated electricity is perceived as “free.” This shows that technical solutions must always be accompanied by conscious energy use.
Plug-in solar devices bring people into direct contact with renewable energy, promote personal responsibility, and foster acceptance. Their strength lies in making the energy transition tangible and turning it into a project shared by everyone.