About Voltho
Haye Tholen
Founder Haye is the driving force behind the company. With 20+ years of experience in the energy industry across various sectors, he knows the energy system. With his marketing and sales experience, he can assist with commercial strategies. And thanks to his technical background, he can also quickly map out feasibility and solution directions. With his extensive network, he has access to a lot of expertise.
Jan-Willem Westenbrink
Jan-Willem has been a collaboration partner of Voltho since 2024. With his experience at a regional grid operator, he possesses extensive knowledge of the electricity system and regulations regarding congestion management and flexible contracts. As a consultant, he has led projects for both regional governments and the private sector in the areas of grid congestion and energy efficiency. His pragmatic approach makes him the ideal partner for clients seeking concrete and future-oriented solutions.
Dominique Becker Hoff
Dominique has earned his stripes for many years as CCO at S4 Energy, owner and operator of large-scale battery storage systems that provide flexibility to the electricity grid. With his 20+ years of experience in commercializing technically complex products and services, he has the right experience to open new markets for the gridflow model.
Dyon van Vreumingen
Dyon is begin 2026 toegtreden en richt zich op energiesysteemmodellering en load-flowberekeningen, met een specifieke focus op netcongestiekansanalyse. Dankzij zijn achtergrond in Natuurkunde, Computer Science en quantumcomputing brengt hij een sterk analytisch en python developer fundament mee. Met zijn avontuurlijke instelling en intrinsieke motivatie zet hij zich graag in om de energietransitie verder vorm te geven.
Georgios Dimitriadis
George Dimitriadis joined the Voltho team in early 2026. He focuses on energy system modeling with load-flow calculations, with a specific emphasis on grid congestion analysis and the battery market. His analytical approach and ability to understand complex energy datasets make him a valuable partner in assessing the feasibility and performance of forward-looking energy projects.