07 SGU - Significant Grid User
In September 2025, battery energy storage systems were placed on Poland's SGU list — Significant Grid Users — for the first time. If your project is above 10 MW and 40 MWh, you're in scope. In this episode I cover what that means technically, operationally, and financially — and why the inverter decision you make at EPC specification stage determines what options you'll have for the next fifteen years.
🔋 In this episode:
00:00 Intro
02:03 NC ER and SGU on the Polish market
05:17 Who ends up on the list
08:58 How the inclusion process works from the investor's side
10:21 SGU obligations
12:25 Costs and compensation
16:10 SGU + grid connection reform + NIS2
20:09 Grid following vs grid forming vs black start
23:41 Black start
25:33 Island mode and islanded operation
📌 Who is this episode for? For international investors and developers working on utility-scale BESS projects in Poland who need to understand how SGU status affects EPC specifications, O&M contracts, and financial models — before commissioning, not after.
🎙️ Host: Jerzy Kuźmiński
linkedin.com/in/kuzminski-jerzy
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👉 Episode 4: UC84 — Poland's Grid Connection Reform • 04 UC84 - Poland's New Grid Connection Rules
👉 Episode 5: How to Develop a BESS Project in Poland • 05 How to Develop a BESS Project in Poland
👉 Episode 6: Choosing a BESS Supplier • 06 Choosing a BESS Supplier
📂 All episodes: • GreenEdge: Best in BESS - ENG
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🌐 www.greenedge-solutions.com
Working on a utility-scale BESS project in Poland and need support with due diligence, EPC specification, or O&M setup? Get in touch!