Heliatek cooperates with Engie on its Harmony advertising campaign

Solar Graffiti in Mexico for a more harmonious world Dresden, Germany – May 2nd 2018 – Engie, the French energy group, recently launched the international advertising campaign ‘Engie Harmony’. The campaign’s first project is called ‘Solar Graffiti’ and features an installation on a sports field near Mexico City that combines the graffiti art of the …