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BESS and power grid stability

2026-03-01 · ADVANT

Challenges facing the Polish grid

The Polish power grid faces unprecedented challenges. The rising share of intermittent RES, ageing transmission infrastructure and growing energy demand create an ever-greater risk of instability.

The role of BESS in stabilization

Battery energy storage systems (BESS) offer unique grid stabilization capabilities thanks to their instant response to frequency and voltage changes.

System services

  • FCR (Frequency Containment Reserve) — response within seconds
  • aFRR (Automatic Frequency Restoration Reserve)
  • Voltage regulation in distribution networks

The future of the system services market

As Poland liberalizes the balancing market, BESS will become a key tool for grid operators and energy aggregators.