Grafiken Quellen:
https://www.shutterstock.com/de/image-photo/male-engineer-blue-suit-protective-helmet-1321412432
https://www.shutterstock.com/de/image-photo/male-engineer-blue-suit-installing-solar-1334223911
https://www.shutterstock.com/de/image-photo/electrician-working-on-checking-status-inverter-554812438
https://www.shutterstock.com/de/image-photo/photovoltaic-315473750
https://www.shutterstock.com/de/image-illustration/photovoltaic-renewable-background-solar-panel-3d-1569930088
https://www.shutterstock.com/de/image-photo/smiling-male-technician-blue-suit-installing-1029800602
https://www.shutterstock.com/de/image-illustration/solar-panels-on-roof-modern-house-1368232784
https://www.shutterstock.com/de/image-photo/photovoltaic-panels-77063041
https://www.shutterstock.com/de/image-photo/man-shows-his-family-solar-panels-1674153415