Goede momenten. Gelukkig jong volwassen glimlachende man in beschermende helm met open laptop in handen op de achtergrond van zonnepaneel - Stockfoto’s en -afbeeldingen

Working process. Profile of interested serious man in protective helmet looking attentively at laptop standing near solar panel

Worker installing solar panels outdoors.

Solar power plant worker checks the condition of the panels.

Thinking process. Charming young man sitting at the table and drawing a blueprint while looking at two wind turbines standing on the table

Saving environment. Happy cheerful male engineer staring at windmills model while standing and grinning

Pleased by result. Upbeat young engineer standing in the study, holding a blueprint and looking at wind turbine models standing on the table

Engaged in work. Grey-haired senior man sitting at the table and using a protractor while working on the creation of a blueprint

Professional blueprint. Serious nice smart man sitting the table and using drawing tools while working on a technical blueprint

Have idea. Cheerful brunette keeping smile on her face while staring at artificial windmills

My invention. Energetic enthusiastic male engineer chatting on phone while sharing his impressions and stretching to windmill model

Life work. Senior focused male engineer looking down while using pencil and creating blueprint