Energy storage becomes a systemic priority: what the ANRE permits of 26 June 2026 signal

An authorisation package with an unusual composition

On 26 June 2026, ANRE's Regulatory Committee approved energy capacities totalling more than 537 MW in a single session. Broken down by source: 143 MW photovoltaic (7 permits), 128 MW wind (3 permits) and 253 MW BESS storage (7 permits). Almost half of the total approved — 47% — represents storage capacity rather than generation. This proportion is not incidental and marks a shift in approach at the level of regulatory policy in Romania.

In the recent history of ANRE authorisations, storage was treated as an auxiliary component, approved sporadically and with a minor share of the overall balance. The fact that 253 MW of BESS were authorised in a single session — a figure comparable to almost half of Romania's total operational storage capacity at the end of 2025 — indicates a maturing of the institutional approach.

Why the BESS / intermittent renewables ratio is technically relevant

In the 26 June 2026 package, the ratio between the authorised storage capacity (253 MW) and the intermittent generation capacity (271 MW photovoltaic + wind) is approximately 0.93 — almost 1:1. This reflects a technical logic that the regulator is progressively adopting: each MW of variable generation added to the system needs a corresponding amount of flexibility capacity.

A BESS system co-located with a photovoltaic park simultaneously solves three operational problems: it smooths midday overproduction (the duck curve phenomenon), reduces penalties for deviating from the declared schedule, and increases the utilisation rate of the energy produced during the hours of peak irradiance.

Romania and the 3.7 GW storage target by 2030

The NECP (PNIESC) 2021-2030 provides for 3.7 GW of storage capacity by the end of the decade. Operational capacity at the end of 2025 stood at around 600 MW, a significant share of which was concentrated with a single private operator. The distance to the assumed target is more than 3 GW to be covered in less than five years. The pace of recent authorisations suggests acceleration, but a permit is not equivalent to commissioning: an industrial-scale BESS project typically takes 18-36 months between the ANRE permit and commercial operation.

Implications for investors and developers

Hybrid projects (generation plus co-located storage) have a superior bankability profile compared with standalone generation. International financial institutions — the EBRD, the IFC, commercial banks with ESG mandates — penalise exposure to system imbalance risk, and a contractually integrated BESS reduces that exposure. The authorisation of seven distinct storage capacities in a single session also indicates a maturing of administrative competence in processing BESS documentation — a positive signal for investors who have postponed decisions due to bureaucratic uncertainty.