The Pexapark Podcast The Next-Gen IPP Podcast Series | Sonnedix’s Axel Thiemann
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Dec 2, 2025 In this engaging discussion, Axel Thiemann, CEO of Sonnedix and expert in renewable energy, dives into the transformation of Independent Power Producers. He highlights how Sonnedix is evolving from a solar-only focus to a diversified, customer-led approach across ten markets. Key topics include the shift from feed-in tariffs to customer-facing models, embracing battery and wind technologies, and the importance of data standardization for operational efficiency. Axel also shares insights on balancing growth with risk and the crucial role of digitalization in the energy landscape.
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Sonnedix's Growth Story
- Sonnedix grew from early-2010s solar development to a 4.5+ GW IPP across 10 countries with 600+ staff.
- Their largest markets include Spain, Italy, Portugal, Chile, Japan, France, and the UK.
IPP Evolution: Customer-First Generation
- Axel Thiemann defines modern IPPs as customer-facing generators competing in the wider power system rather than just in renewables.
- This shift requires different skills and a focus on meeting customer demand, not just building projects.
From Project-Led To Customer-Led
- The next-generation IPP is customer-led, multi-technology and risk-focused rather than project-led.
- Meeting customer demand requires understanding generation stacks, grid interaction, and new monetization routes.