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South Korea Streamlines Permitting for Battery Energy Storage Systems
South Korea's Ministry of Climate, Energy and Environment has issued new guidelines for classifying outdoor Battery Energy Storage Systems (BESS). This initiative aims to reduce permitting times by up to three months and costs by as much as KRW 70 million. The new regulations provide clarity where previous inconsistencies existed, accelerating BESS deployment across the country.
South Korea's Ministry of Climate, Energy and Environment has introduced new guidelines for classifying outdoor energy storage systems (BESS). This initiative aims to simplify permitting procedures and reduce associated costs. The guidelines are expected to cut permitting times by up to three months and decrease costs by as much as KRW 70 million (approximately $52,600).
These guidelines were developed in collaboration with the Office for Government Policy Coordination and the Ministry of Land, Infrastructure and Transport. They were distributed to local governments nationwide last week. Previously, local authorities inconsistently classified identical BESS installations as buildings, temporary buildings, or structures, leading to varied procedures, timelines, and expenses for developers.
The new classification system is based on Article 2 of Korea's Building Act, incorporating additional criteria such as facility accessibility, structure, and intended use. BESS units housed in dedicated protective enclosures that do not allow human entry are now categorized as structures. Container-form facilities that permit limited access for inspection and maintenance are classified as temporary buildings. Dedicated non-container BESS buildings with regular human access will be treated as conventional buildings. Local permitting officials will receive a decision matrix to aid in consistent classification.
The benefits of this clarification are substantial. Permitting an ESS classified as a structure typically takes about 0.5 to 1.5 months and costs between KRW 2 million and KRW 10 million. These structures are also exempt from certain building requirements, such as building-coverage and floor-area ratios. In contrast, permitting a BESS classified as a building generally takes about two to four months and costs between KRW 30 million and KRW 80 million.
According to Lee Jae-sik, Director General for Power Grid Policy at the ministry, BESS is "core infrastructure" supporting renewable energy expansion and grid stabilization. The ministry is committed to resolving regulatory and administrative uncertainties to facilitate the effective deployment of BESS. No changes to safety or fire-prevention requirements have been announced.
This development coincides with grid operator KPX's third central contract market tender for standalone storage, which was announced in September. This tender seeks 1.1 GW/6.6 GWh on the mainland and 80 MW/480 MWh on Jeju Island. Previous tenders included 540 MW/3,240 MWh in January and 65 MW/260 MWh in 2024.
Source: ESS News
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