About Us
Our Story & Mission
Who We Are
Pioneering Future
Founded by a thinker, inventor, data analyst, and IT consultant Why Five began with a clear and ambitious vision: make clean energy accessible, affordable, and reliable for everyone.
We help governments, institutions, and industry leaders accelerate the transition to clean energy within meaningful and achievable timeframes, while keeping the process cost-effective and financially viable. Our focus is practical delivery: solutions that can strengthen economies, improve energy security, and create real, measurable benefits for every party involved.
We believe the energy transition should be a pathway out of economic stagnation, not a burden. By aligning incentives across the full value chain, we aim to show that cutting emissions and building prosperity can happen together, giving society a stronger chance against climate change by working with nature, not against it.
Our approach is designed to be scalable and adaptable across regions and continents. We are at the beginning of this journey, but our commitment is long-term: help communities thrive, help economies grow, and leave a healthier planet for generations to come.
2026
Formalising RRETS into a scalable, client-ready business solution.
2025
Writting and publishing RRETS preprtint.
2023
Birth of the RRETS concept.
↙ - ↗
Providing IT consultancy services for two major UK banks, RBS and BNP Paribas.
2018
Why Five was incorporated following the founder’s attendance at a Global Challenges Foundation event, where his solution, Basic Tax Control, was named a finalist for the $5M New Shape Prize.
Our Values
What Drives Everything We Do
Sustainability
Every decision we make is guided by its environmental impact. We aim to leave the planet better than we found it.
Innovation
We continuously invest in research and development to push the boundaries of what renewable energy can achieve.
Integrity
Transparency and honesty are the foundation of every partnership. We stand behind our work and our word.
Community
We believe energy should empower communities. Our projects create local jobs and drive regional economic growth.
Our Leadership
A Team of Visionaries
Our leadership team brings together decades of experience in energy, engineering, finance, and environmental science to steer Why Five toward its ambitious goals.
Aleksandar Ristevski
CEO & Founder
Creator of the RRETS approach, focused on practical pathways for transforming complex systems. Experienced in data analytics, with a career spanning major banking and diverse industries, bringing strategic clarity, curiosity, and long-term thinking.
Aleksandar Bakalov
CTO
With 20+ years of IT engineering leadership across industries, shaping technology strategy, building scalable architectures, and guiding teams to deliver secure, reliable products from concept to launch.