VOLTARES CONSULTING

About Us

OUR APPROACH

Independent advice, technical expertise and practical project experience define our work

We support renewable energy projects from feasibility and site selection through technical planning and permitting.

Our approach combines data-driven analysis with real project experience to deliver solutions that are technically sound, feasible and aligned with regulatory requirements.

We focus on identifying the best solution for each project - independent of specific technologies or manufacturers.

THE TEAM BEHIND THE PROJECTS

Experienced professionals supporting renewable energy projects from feasibility to implementation.

The consulting team

Head of Consulting

Martin Hölzli

WIND ENERGY WIND RESOURCE ANALYSIS PROJECT PLANNING

Experience

Over 16 years of experience in wind energy consulting and project development, leader and coordinator of the consulting team. He has developed multiple wind parks through technical planning and layout optimisation, and oversees project development processes, ensuring alignment between technical studies, permitting requirements and project strategy. His core expertise lies in wind resource assessment, turbine layout optimisation and project coordination, using WindPRO, Wasp and WaspCFD, with project experience across Europe.

Consultant

Kilian Mayr

WIND ENERGY SOLAR ENERGY PROJECT MANAGEMENT

Experience

Over six years of experience in renewable energy consulting and project development, managing wind and photovoltaic projects from site identification through implementation. He has coordinated the development and construction of large-scale PV projects, including technical planning, permitting processes and stakeholder coordination. His work focuses on site analysis and project layout design, with advanced expertise in QGIS and CAD-based planning, complemented by experience in WindPRO.

Consultant

Roman Burger

WIND ENERGY SOLAR ENERGY PROJECT MANAGEMENT

Experience

Eight years of experience in renewable energy consulting and project development, with a focus on photovoltaic and wind power projects. He has contributed to multiple wind and PV projects across all development phases and carried out numerous layout and design studies. His core expertise lies in technical planning, layout optimisation, spatial analysis and energy yield modelling for PV, as well as in project management, including stakeholder management, coordinating studies and permitting processes.

Consultant

Lina Mejía

ENVIRONMENT & SUSTAINABILITY CLIMATE IMPACT PROJECT MANAGEMENT

Experience

Over 10 years of experience in environmental and sustainability consulting for climate resilience projects and renewable energy systems. She leads environmental and social aspects of renewable energy projects, including preparation of environmental permitting documentation, EIA review and coordination of environmental specialists across Europe and Latin America. Her expertise includes biodiversity analysis and environmental risk evaluation, as well as compliance with international standards.

Consultant

Harald Spicka

WIND ENERGY WINDPRO HYDROGEN

Experience

Over 15 years of experience in industrial production including conceptual planning and management of green gases, and two years experience in renewable energy consulting and project development. He supports feasibility assessments and technical planning of renewable energy projects, with a focus on integrating biogas, hydrogen and Power-to-X concepts. His work includes spatial Analysis using QGIS, wind farm yield assesment and visualisation using WindPRO, and geoinformatics planning of hydrogen system concepts and infrastructure considerations.

Consultant

Stefan Schoppmann

WIND ENERGY CAD TECHNICAL PLANNING

Experience

Seven years of experience in wind energy consulting and project development, supporting projects from site feasibility through technical planning and permitting. He has contributed to the development of multiple wind parks, including technical planning submissions and layout design studies. His work focuses on wind resource assessment, turbine layout design and technical planning using QGIS, BricsCAD and WindPRO, with experience in permitting procedures and projects across Europe.

Junior Consultant

Timo Över

WIND ENERGY GIS DATA ANALYST

Experience

Two years of experience in renewable energy consulting and project development, supporting feasibility assessments, site analysis and technical planning activities. He contributes to project development through spatial analysis, layout preparation and technical support tasks across projects in Europe and Georgia. His work includes advanced use of QGIS, including the development of customized tools and plugins, supporting data analysis, project design and process automation.

Administration

Voltares Managing Director

Andreas Nirnberger

Strategic Oversight

Responsible for overseeing the development, structuring and execution of renewable energy projects at company level. Provides experience in infrastructure and strategic guidance across projects, supporting key decisions and ensuring alignment between project development, implementation and overall business objectives.

Administration

Dagmar Steininger-Toifl

Office Operations

Provides operational support to the consulting team, ensuring efficient project execution through coordination of administrative processes, invoicing and financial tracking. Monitors project hours, supports budget control and maintains accurate oversight of project-related data and internal workflows.

Junior Legal Counsel

Ana Vilau-Dogan

Legal Support

Provides legal support across renewable energy projects, focusing on contract review and risk identification. Reviews agreements with project partners and operators, ensuring clarity, consistency and alignment with project requirements. Supports the consulting team with legal notes and recommendations to mitigate risks and strengthen contractual frameworks.

About Us

OUR APPROACH

THE TEAM BEHIND THE PROJECTS

The consulting team

Martin Hölzli

Experience

Kilian Mayr

Experience

Roman Burger

Experience

Lina Mejía

Experience

Harald Spicka

Experience

Stefan Schoppmann

Experience

Timo Över

Experience

Administration

Andreas Nirnberger

Strategic Oversight

Dagmar Steininger-Toifl

Office Operations

Ana Vilau-Dogan

Legal Support

OUR PARTNERS