06 Choosing a BESS Supplier

The BESS supplier market looks simple from the outside — until you're in it. Dozens of integrators, similar-looking containers, prices that differ by 20%, and no obvious way to tell who's serious and who's just assembled components and printed a brochure. In episode 6, I break down how to navigate supplier selection without making the mistakes that cost investors time, money, and years of underperformance. 🔋 In this episode: 00:00 Intro 01:54 How the BESS supplier market actually works 04:31 The scale problem — why smaller investors are being pushed toward less proven suppliers 07:18 How to evaluate supplier credibility and what Tier 1 means 10:17 DC-block, AC-block, or complete system 12:25 The RFP — how to run a proper selection process 16:42 Certifications that matter in Poland 19:09 Red flags in offers and term sheets 📌 Who is this episode for? For international investors and developers evaluating BESS projects in Poland who want to buy the right system from the right supplier — and avoid the expensive lessons that come from getting this stage wrong. 🎙️ Host: Jerzy Kuźmiński www.linkedin.com/in/kuzminski-jerzy 🔔 Subscribe and turn on notifications! 👉 Episode 5: How to Develop a BESS Project in Poland — From Idea to RTB https://youtu.be/GlJFGr9NoRw 👉 Episode 4: UC84 — The New Grid Connection Law That Changed the Rules https://youtu.be/q6nJAsAnLJQ 👉 Episode 3: C&I Energy Storage — When Does It Actually Make Sense? https://youtu.be/YkE3CoseTis 📂 All episodes: https://www.youtube.com/playlist?list=PLpF_1_7XeIIVeDk2Uu-nT_817JqlhjLvN 📩 [email protected] 🌐 https://greenedge-solutions.com Need support with BESS project due diligence, procurement advisory, or independent technical oversight on site? GreenEdge Solutions and Rova Systems.