THE ERENE TEAM
People who make energy solutions possible.
Our team brings together consulting, planning, technology and project management, supporting you from the first idea to the operating system.
Discuss your projectAbout us
Shaping the energy transition together
Since 2010, ErEne has developed tailored energy solutions for homeowners, businesses and investors - planned holistically, considered economically and implemented reliably.
Our team
The people who make energy projects possible
Engineers, technicians, project managers and energy experts reliably bring consulting, planning and implementation together.
Erwin Zernickel
Managing Director / Engineer
Leads the technical direction and the development of integrated energy solutions.
Thomas Lechki
Field Sales / Technical Consultant
Supports customers from the first conversation through to the technical coordination of the right energy solution.
Luka Rieke
Field Sales / Technical Consultant
Combines personal project consulting with technical understanding and a clear view of on-site requirements.
Elmira Berisha
Metering / Community Manager
Coordinates office operations and brings ErEne topics to life across digital communication.
Steffen Gottschalk
Technical Planning
Supports technical planning and helps develop practical, well-coordinated energy concepts.
Tomislav Mrakovic
Procurement
Coordinates procurement and internal sales, keeping workflows connected across customers, partners and the team.
Gabriela Oliveira
Team Assistant
Supports team organization and keeps internal workflows running reliably.
Sarah Meleschka
Internal Sales
Coordinates procurement and internal sales while supporting alignment with customers and partners.
Joanna Marie Sombrowski
Apprentice
Supports the team as part of her apprenticeship and gains practical experience across different areas.
Michael Mahdenko
Growth & AI Marketing Manager
Develops growth initiatives and digital marketing solutions with a focus on AI.
Juri Aldaschef
Warehouse Manager
Keeps warehouse operations organized, available and running smoothly.
Justin Knops
Apprentice
Supports the team as part of his apprenticeship and gains practical experience in daily operations.
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More InformationBenefits
What defines ErEne
Holistic concepts
Photovoltaics, storage, charging infrastructure, heat pumps, climate systems and EMS are planned as one coordinated system.
Experience since 2010
What began with first-hand PV experience has grown into an experienced system provider for modern energy solutions.
Personal support
From analysis to commissioning, we rely on clear communication, precise planning and dependable contacts.
Future-proof technology
We work with proven components, intelligently connected systems and strong technology partners.
Description
Our story
ErEne Green Technologies GmbH was founded in 2010 in Ratingen near Düsseldorf from a simple idea: making people and companies more independent from fossil energy sources.
It started with a photovoltaic system on the founder's own home. Positive experiences, recommendations and neighbourhood support gradually developed into a professional company.
Today, ErEne plans and implements modern energy solutions for homes, businesses and investors - from PV systems and battery storage to charging infrastructure, heat pumps, air conditioning and intelligent energy management systems.
- Individual energy concepts instead of standard solutions
- High-quality and proven system components
- Maximum energy efficiency through intelligent networking
- Long-term partnerships and reliable service
- Every project handled with the care we would give our own
Process
How our team works
Analyse
We review goals, consumption, location, technology, budget and future expansion options.
Conceptualise
Individual requirements become an integrated energy concept with clear technical and economic logic.
Coordinate
Engineers, technicians, project managers and energy experts work together with transparent processes.
Develop further
Regular training and close partner collaboration keep solutions modern, efficient and future-proof.
Outlook
Leadership and vision
What does the management stand for?
Quality, technical innovation and proximity to customers. These values shape ErEne's development and daily work.
What vision does ErEne pursue?
ErEne wants to actively drive the energy transition with intelligent complete solutions that create long-term independence and planning security.
What does that mean for customers?
Customers receive complete energy solutions rather than isolated products, designed to create lasting value and remain expandable.
Why is the team so important?
Behind every successful project are people who bring consulting, planning, technology and implementation together cleanly.
Plan your energy project with ErEne
We listen, classify your project and develop a solution that fits technically, economically and long-term.