Ukraine’s Flexible Grid Connection: Why Grid Capacity Matters for BESS Sizing Uk

Siao

7 days ago · Energy Square ·

Ukraine’s Flexible Grid Connection: Why Grid Capacity Matters for BESS Sizing Ukraine’s 2026 electricity market reforms introduce new opportunities for Solar + BESS projects, particularly where grid connection capacity is limited. Under Law No. 4777-IX, the installed capacity of generation, storage and consumption equipment may exceed the permitted connection capacity, provided that actual electricity injection and withdrawal remain within their respective limits. Consider a simplified example: Solar PV generation: 5 MW Factory consumption: 1 MW Permitted grid export: 3 MW Surplus power: 1 MW The remaining 1 MW could be stored in a BESS, curtailed, or consumed through additional on-site demand. This creates an important engineering consideration: BESS sizing should reflect actual grid constraints, load profiles and project economics, rather than simply following a fixed percentage of installed solar capacity. Specific legal basis Law No. 4777-IX (10 February 2026): Introduces flexible grid connection provisions into Ukraine’s Electricity Market Law. Electricity Market Law No. 2019-VIII, Article 21(12-1): Allows combined generation, storage and consumption at a connection point, subject to permitted injection and withdrawal limits. Article 21(10-1): Establishes requirements for automatic power limitation or disconnection under flexible connection arrangements. NEURC Resolution No. 1355 (11 August 2026): Amends the Distribution System Code, effective 1 September 2026. Distribution System Code, Clauses 4.3.13 and 4.6.12: Address flexible connection procedures, automation, technical conditions and corresponding revisions to engineering documentation. The detailed procedure in Clause 4.3.13 has specific eligibility conditions, including certain non-standard connections exceeding 1 MW at 20 kV or above. #EnergyPlanet #UkraineEnergy #BESS #SolarEnergy #GridConnection #EPC