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The Green Alliance was officially unveiled during the Basketball Champions League Final Four powered by SUNEL Group in May 2025 – a global stage, and the perfect starting point for a movement built on visibility, impact, and transformation.

That moment confirmed something we already believed.

Stadiums, arenas, and large venues across Europe are looking for practical, real-world solutions that lower costs, modernize operations, and align with the demands of today’s fans, teams, and sponsors. Sustainability isn’t just a goal anymore – it’s an expectation. And the public wants to see it in action.

The Green Alliance was born to meet that moment. And it’s just getting started.

With the launch of Season X of the Basketball Champions League — powered by Ameresco SUNEL — the Alliance has entered a new era. One with a pan-European footprint, a long-term platform for growth, and the momentum to scale across borders, sectors, and industries.

But this isn’t just about basketball. And it isn’t just about sport.

This is about building something that lasts. About connecting energy and infrastructure with culture, with community, and with purpose. It’s about turning buildings into power plants. Turning stadiums into platforms. And turning partnerships into action.