Our Team

Christian Wentzel
Chairman

Christian Wentzel

Chairman

Christian is the co-founder and chairman of Solar Provider Group. Coming from a fifth-generation family farming business, Christian has set out to harvest the sun’s energy in a slightly different way. In his career in the solar industry, Christian’s companies have built and interconnected more than 300 large-scale projects in the US, Canada, and Europe. Prior to founding SPG, Christian has arranged or participated in more than $5 billion of energy investments in the US. He has worked for Goldman Sachs’ Power Group, Traxis Partners, a $3 billion investment fund, and Credit Suisse’s Energy M&A division, all located in New York City. Christian is a CFA charter holder and has an MBA from the London Business School, as well as a BA in Economics from Columbia University.

Sebastian Seyfarth
CEO

Sebastian Seyfarth

CEO

Sebastian is the co-founder and CEO of Solar Provider Group. Throughout his career he has been involved in the construction and development of solar PV facilities totalling more than 100MW of installed generation capacity. With SPG, Sebastian has positioned the company to construct approximately 50+ MW of ground mount and 20+ MW of rooftop projects in 2016 throughout Canada, US and UK. Sebastian has a Bachelor in Business Administration from the Munich School of Management.

Steve Kiesling
CFO

Steve Kiesling

CFO

Steve Kiesling serves as Chief Financial Officer of Solar Provider Group. Holding a broad range of experience, Steve excels in understanding client, company, and situational needs to create effective solutions. Prior to his current role, Steve served as Executive Vice President for Sunstarter Solar, spearheading its development in the residential solar space. Earlier in his career, he worked as an analyst covering investments in energy, natural gas, private equity, and public equities. Steve graduated magna cum laude with a B.S. in Finance and Economics from Tulane University and graduated with an MBA from the University of California, Los Angeles.

Michal Tvrdon
Project Development Manager

Michal Tvrdon

Project Development Manager

Michal serves as the Project Development Manager, leading the development of renewable energy projects that globally total 200+ MW capacity. Michal has managed the development of project portfolios across multiple markets in the US, Canada, as well as Europe. With over 10 years experience in project management, environmental policy and regulatory compliance, Michal has been directly responsible for renewable energy market research, as well as for the implementation of solar photovoltaic projects from site feasibility studies through to permits and project/portfolio delivery. Michal holds a MES in Environmental Policy from Wageningen University, the Netherlands, with a minor in Environmental Planning and Management.

Andrew Ross
Project Developer

Andrew Ross

Project Developer
Simon Courtney
Operations and Maintenance Manager

Simon Courtney

Operations and Maintenance Manager
Zsofia Nagy
Accountant

Zsofia Nagy

Accountant
Brenda Ornela
Accounting Clerk

Brenda Ornela

Accounting Clerk
Mark Kozlowski
Engineer

Mark Kozlowski

Engineer
Guido Visser
Project Developer

Guido Visser

Project Developer
Richard Stouthart
Business & Project Development Consultant

Richard Stouthart

Business & Project Development Consultant
George Overbeke
Project Coördinator

George Overbeke

Project Coördinator
Aron Vink
Projectcoördinator

Aron Vink

Projectcoördinator
Anjo Barteldres
Business Development Consultant

Anjo Barteldres

Business Development Consultant

Anjo has been a team member from the very beginning in the Germanmarket. As a business development consultant, he has been responsible for acquiring new/ promising parcels and projects since 2020. With a dual bachelor's degree in 'International Sports Management' at Decathlon and two years of business development experience as a headhunter in the IT industry in Berlin, he turns his passion for communication with different people and landowners into a profession.

Evan Gilroy
Business Development Consultant

Evan Gilroy

Business Development Consultant
Liza Cornils
Project Developer

Liza Cornils

Project Developer
Tom Helliwell
Senior Business Development Consultant

Tom Helliwell

Senior Business Development Consultant
Jenna Hildebrandt
Business Development and Land Acquisition Specialist

Jenna Hildebrandt

Business Development and Land Acquisition Specialist