EU Project – SUM4Re

OLAR Solutions is a partner in the EU-funded SUM4Re project, addressing the EU’s largest waste stream—construction and demolition waste. SUM4Re creates materials banks through urban mining, using automated data capture and AI-based material identification to enable reuse and accelerate a circular economy in construction sector.

Our Services

Tailor-made solutions to the challenges you might encounter

Technology development

From first idea to validated concept—turning opportunities into clear, scalable technology solutions.

Feasibility, Optimisation & LCA

Feasibility studies, process optimisation, and Life Cycle Assessment to de-risk decisions and improve sustainability.

Project Proposals & Consortium Support

We help write strong funding proposals—and can join your consortium as a project partner.

About Us

We provide tailor-made solutions to the challenges you might encounter

OLAR Solutions was founded by Maciej Olszewski and Dr. Pablo J. Arauzo after five years of successful collaboration at the University of Hohenheim. We are a startup consulting firm passionate about renewable technologies, providing tailored, practical solutions to help clients solve real-world challenges.

Maciej Olszewski

CEO & Co-Founder

MSc. Maciej Olszewski holds a master degree in chemical engineering from the AGH University of Science and Technology in Krakow (Poland). In 2017, he developed his master’s project as a member of the BioCarb+ project in Norway as a cooperation with Norwegian University of Science and Technology and SINTEF Energy Research. His research and projects experience is focused on thermochemical processes, production of green chemicals and upscaling of lab scale technologies to pilot plant scale.

Dr. Pablo J. Arauzo

CTO & Co-Founder

Dr. Dipl. Eng Pablo J. Arauzo obtained in 2014 his Dipl. Eng. Chemical Engineering mention in Chemical processes at the University of Zaragoza (Spain). In 2021, he obtained his Dr. Degree focus in renewable energies at the University of Hohenheim (Germany) under a Marie Curie grant. His research/project experience covers renewable energy technology, renewable solid fuels and activated carbon production. He also had made several research exchanges at different universities of USA and he is the author and coauthor of several scientific publications and book’s chapters.

Contact Us

Flughafenstrasse 59
70629 Stuttgart, Germany
+49 173 546 8209
info(at)olar-solutions.com

Get In Touch

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