Alfonso Martínez
1. What is your role at BNZ, and what does a typical day look like for you?
I’m a Business Analyst Intern in the Strategy & Transformation department. If I had to describe my routine, I’d say it’s defined by the lack of one. Every day is basically a new puzzle to solve. I’ve had to learn to switch gears quickly, I might spend one day focused on coding and the next on drafting strategic content. It’s that constant shift between the technical and the communicative that keeps it interesting.
2. What was your first impression when you walked into the office on your first day?
Honestly, my first thought was how horizontal the culture felt. From day one, I noticed that doors were open and people were incredibly approachable, regardless of their seniority. It didn’t feel like a place where you are just “the intern”, it felt like everyone’s input was valued from the start.
3. What has surprised you the most about working in renewable energy?
I think what surprised me most is the sheer complexity behind the “green label”. It’s not just about building solar plants; it’s a sector full of multi-layered challenges that require constant problem solving. But the best part is seeing that our work has a tangible impact. Unlike other industries where everything stays on a screen, here you can see how your analysis eventually translates into real infrastructure.
4. If you had to describe your experience at BNZ so far in three words, what would they be?
Challenging, versatile, impactful
5. What has been your biggest learning or personal growth since joining the team?
The biggest growth for me has definitely been the sense of ownership I’ve been given. Having the opportunity to lead my own projects from start to finish forced me to move beyond just “doing the work” and start thinking about the bigger picture. I’ve learned how to structure my thoughts more clearly and, more importantly, how to communicate my ideas. It’s one thing to solve a problem in an Excel sheet, but learning how to present that solution and get people on board has been my most valuable lesson so far.
6. What do you value most about working with your colleagues at BNZ?
What I value the most is the balance between high level expertise and genuine approachability. Being surrounded by colleagues who are at the top of their game naturally pushes me to raise my own standards every day. At the same time, there’s no ego, everyone is willing to share their knowledge and listen to new ideas.
7. How does it feel knowing that your work contributes to real renewable energy transactions?
It’s incredibly motivating because it gives the analysis a purpose. In strategy, we deal with a lot of abstractions and models but knowing that our analysis directly supports real world transactions adds an important layer of responsibility. It makes you realize that every detail matters, because the outcome isn’t just a report.
8. From your perspective, which countries are currently leading the way in solar energy development?
Globally, China is in a league of its own in term of scale and manufacturing, they’ve set a pace that honestly is hard to follow. However, from a strategic perspective here in Europe, Spain and Portugal are clearly leading the way. We have a lot of solar resources and the level of investment and project development we’re seeing right know is very high. I’d also mention that Germany, even with much less sun than south Europe, their leadership in grid integration and policy shows that solar success is as much smart strategy as it is about resources.
9. What is one small habit you have adopted to reduce your carbon footprint in daily life?
I’ve adopted a “walking first” mindset for anything under 30 minutes. It’s a small shift that significantly reduces my reliance on cars or Ubers for short trips. However, beyond the environmental aspect it’s become my favorite way to disconnect from screens and clear my head.
10. If you could give one piece of advice to your first-year university self, what would it be?
I would tell myself to stop trying to map out every single step of my career and just focus on staying curious. At university, we feel the pressure to have the “perfect” plan , but the professional world is rarely linear. I never imagined I’d be working on business strategy in the renewable energy sector, and yet, that’s where I found my stride. My advice would be: “Build a strong foundation, but keep your mind open to the unexpected, the most interesting roles are often the ones you didn’t even know existed when you started.”
In Depth
- Hobby: I’ve always been drawn to sports, particularly golf, basketball or judo
- A country to travel to: Costa Rica, I’m a firm believer that nothing man made can rival the beauty of natural landscapes
- A city to live in: Copenhagen
- An animal: Falcon
- A movie or TV series: The Others, it’s a masterclass in building atmosphere and suspensewithout relying on clichés
- A book: I’m a big fan of authors like Isaac Asimov and George Orwell with books like Foundation, The End of Eternity, 1984 or Animal Farm.
- Type of cuisine: Spanish cuisine, without a doubt
- Historical figure: Blas de Lezo
- Color: Green
