About
Founded in 2015, Zest is a private headquartered in Saint-Vulbas, France with approximately 50-200 employees specializing in Solar.
Zest specializes in intelligent solar autoconsumption solutions combining photovoltaic panels, energy storage, and smart energy management systems. Founded by three engineers, the company handles complete project delivery without subcontracting: technical assessments, design, installation by internal teams, administrative coordination, and long-term monitoring. Services span residential installations, commercial properties, industrial sites, covered parking structures, and community projects. The company promotes sustainable energy with partnerships featuring French-made Voltec Solar panels and European-standard inverters (Fronius, Sungrow, Victron Energy). Zest manages administrative processes including municipal permits, grid connection, Consuel certification, and EDF surplus energy contracts. Solutions include battery storage for 24/7 autonomy, electric vehicle charging integration, and smart water heater control.
Headquarters
Saint-Vulbas, France
Founded
2015
Employees
50-200
Company Type
Private
Business Models
Value Chain
Service Regions
Ain, Rhône, Drôme, Ardèche
Industry Memberships
RGE certified installer network
Products
Residential Solar Installations
Commercial & Industrial Solar Systems
Energy Storage Systems
Solar Leasing/Rental
Smart Energy Management
Maintenance & Technical Support
Certifications & Awards
Certifications
RGE (Reconnu Garant de l'Environnement)
Qualibat
QualiPV
Travailler en Hauteur