CROSS-STANDARD public interest · Battery energy storage (BESS)

China-to-Costa Rica BESS Compliance Gap Matrix

AI-compiled from official public sources — cross-checked by multiple AI models, not human-verified. Informational only; see disclaimer. Public-interest, source-linked comparison of common China battery energy storage system documentation against Costa Rica INTECO conformity requirements, IEC 62619 and IEC 62933 international standards referenced in project specifications, ARESEP and ICE/distributor grid-connection requirements (60 Hz, 120/240 V and 120/208 V / 277/480 V — North American convention), Cuerpo de Bomberos de Costa Rica fire-safety installation expectations, UN 38.3 transport requirements via Port of Limón/Moín and Port of Caldera — versus China GB 44240-2024 and GB/T 36276-2023 baselines.

Dataset 2026-06-11 Last verified 2026-06-14 4 rows

GAP MATRIX

Compliance Gap Matrix

Gap matrix
Compliance item Common China baseline Costa Rica (INTECO / ARESEP / ICE) Gap / action Source + verification date
BESS Fire Safety Installation — Cuerpo de Bomberos de Costa Rica and Local Building Authority Requirements China manages BESS fire safety under a combination of mandatory national standards and project-level fire-safety review by local fire authorities. GB 44240-2024 includes fire-safety provisions for BESS cells and modules. GB/T 36276-2023 and GB/T 36558-2023 cover system-level safety including fire-related requirements. Project-level fire-safety review in China is governed by local fire authority approval procedures. These Chinese fire-safety standards and domestic approval procedures are not recognised by the Cuerpo de Bomberos de Costa Rica or Costa Rican municipal authorities as equivalent to NFPA-based fire-safety installation requirements. BESS fire-safety evidence prepared under Chinese standards must be supplemented with NFPA 855-aligned design documentation for project review by Costa Rican authorities.GB 44240-2024 — 电化学储能系统用二次锂电池安全要求 (includes fire-safety provisions for BESS cells/modules; mandatory, effective August 1, 2025)
GB/T 36558-2023 — 电力系统电化学储能系统通用技术条件 (General Technical Requirements for Electrochemical Energy Storage Systems in Power Systems)		 Fire safety for buildings and fixed installations in Costa Rica falls under the Cuerpo de Bomberos de Costa Rica (Benemérito Cuerpo de Bomberos), which operates under Ley No. 8228 (Ley del Cuerpo de Bomberos). The Cuerpo de Bomberos issues permits, reviews designs, and carries out inspections for fire-protection systems in commercial and industrial facilities. Municipal building authorities also have jurisdiction over construction and installation permits. Costa Rica's fire-safety framework draws on NFPA codes as technical references — a pattern shared with other Central American countries with strong North American influence. NFPA 855 (Standard for the Installation of Stationary Energy Storage Systems, 2020/2023 editions) is the internationally dominant code for stationary BESS fire safety and is expected by project owners and EPCs as a technical design basis. Formal official adoption of NFPA 855 specifically for stationary BESS by the Cuerpo de Bomberos de Costa Rica had not been confirmed from publicly accessible official sources as of the dataset date — this is a high-priority gap requiring direct verification with the Cuerpo de Bomberos and the relevant municipal authority before project design is finalised. Accredited inspection bodies, including internationally recognised laboratories (UL, FM Global, Bureau Veritas, SGS), are the expected route for fire-safety equipment certification where required.Ley No. 8228 — Ley del Cuerpo de Bomberos de Costa Rica (fire-safety authority enabling law)
NFPA 855 — Standard for the Installation of Stationary Energy Storage Systems (2020/2023 edition; internationally dominant BESS fire-installation code; Cuerpo de Bomberos formal adoption specifically for BESS unconfirmed as of dataset date — verify directly with authority having jurisdiction)
NFPA 13 — Standard for the Installation of Sprinkler Systems (widely referenced fire suppression standard in Costa Rica)
NFPA 72 — National Fire Alarm and Signaling Code (widely referenced fire alarm standard in Costa Rica)
IEC 62933-5-1:2024 — Electrical Energy Storage Systems — Safety considerations — Hazard identification, risk assessment and risk mitigation (system-level safety standard expected in project specifications)
Municipal building codes — construction and installation permits required from the relevant municipalidad		 Gap: Fire-safety installation approval from the Cuerpo de Bomberos de Costa Rica and the relevant municipal authority is a mandatory project gate for all commercial and industrial BESS installations in Costa Rica. Chinese BESS fire-safety documentation based on GB standards does not satisfy NFPA-based requirements applied by Costa Rican authorities. Exporters and project teams should: (a) confirm directly with the Cuerpo de Bomberos de Costa Rica whether NFPA 855 has been formally adopted as the applicable standard for stationary BESS installations and determine any Costa Rica-specific derogations or additional requirements; (b) prepare BESS fire-safety design documentation aligned with NFPA 855 — including thermal-runaway propagation mitigation, gas detection or ventilation design, fire-suppression system design (NFPA 13 or equivalent), emergency shutdown procedures, and separation distances per the relevant NFPA 855 occupancy table; (c) ensure fire-suppression equipment is certified by an accredited laboratory (UL, FM Global, Bureau Veritas, or SGS) where required by the authority having jurisdiction; (d) engage a qualified fire protection engineer for design review and permit application submission to the Cuerpo de Bomberos and the relevant municipalidad before project commissioning.[INFORMATIONAL] Fire-safety approval from the Cuerpo de Bomberos de Costa Rica and the relevant municipal authority is a mandatory installation gate for commercial and industrial BESS in Costa Rica. Chinese GB-standard fire-safety documentation does not satisfy NFPA-based requirements applied by Costa Rican authorities. Engage the Cuerpo de Bomberos and a qualified fire protection engineer at the earliest project stage to confirm the applicable fire code (including whether NFPA 855 is formally adopted for stationary BESS), any Costa Rica-specific requirements, and permit application procedures before committing to system layout or equipment specification. Cuerpo de Bomberos de Costa Rica (Costa Rica national fire authority)2026-06-14 · unverified
ICE / ARESEP Grid Connection for BESS — 60 Hz System, IEC 62933, and Distributor Interconnection Requirements China's grid-connection requirements for BESS are governed by GB/T 36558-2023 (General Technical Requirements for Electrochemical Energy Storage Systems in Power Systems) and GB/T 34120-2017 (Technical Specification for Electrochemical Energy Storage System Connected to Distribution Network). The PCS (energy storage converter) is assessed under NB/T 42090-2016 (Technical Code for Testing of Energy Storage Converters). Chinese BESS products are validated by grid operators through National Energy Administration (NEA)-authorised procedures. China's grid operates at 50 Hz, 220/380 V (220 V single-phase, 380 V three-phase). Costa Rica operates at 60 Hz with 120/240 V (residential) and 120/208 V or 277/480 V (commercial/industrial). These are fundamentally different electrical parameters: both frequency and voltage must be addressed. PCS firmware, protection relay settings, frequency ride-through thresholds, and voltage trip parameters configured for China's 50 Hz, 220/380 V grid must be completely reconfigured, retested, and recommissioned for Costa Rica's 60 Hz grid before interconnection testing.GB/T 36558-2023 — 电力系统电化学储能系统通用技术条件 (General Technical Requirements for Electrochemical Energy Storage Systems in Power Systems)
GB/T 34120-2017 — 电化学储能系统接入配电网技术规范 (Technical Specification for Electrochemical Energy Storage System Connected to Distribution Network)
NB/T 42090-2016 — 储能变流器检测技术规程 (Technical Code for Testing of Energy Storage Converters)		 Costa Rica's electricity sector is governed by the Autoridad Reguladora de los Servicios Públicos (ARESEP), which sets tariffs and technical quality standards under Law No. 7593 (Ley de la Autoridad Reguladora). The generation and transmission system is operated principally by the Instituto Costarricense de Electricidad (ICE); distribution is served by ICE and five regional distributors — Compañía Nacional de Fuerza y Luz (CNFL), Coopeguanacaste, Cooperelesca, JASEC, and ESPH. Grid-connected BESS installations require interconnection approval from the relevant distribution or transmission system operator. Costa Rica's grid operates at 60 Hz (nominal 120 V single-phase, 240 V split-phase residential; 120/208 V and 277/480 V three-phase commercial/industrial), following North American conventions — fundamentally different from China's 50 Hz, 220/380 V grid. BESS power conversion systems (PCS) — bidirectional inverters — validated for China's 50 Hz, 220/380 V grid must be reconfigured for 60 Hz operation, 120/240 V and 120/208 V or 277/480 V voltage levels, and appropriate protection relay settings before interconnection testing in Costa Rica. No publicly accessible ARESEP or ICE technical specification document specifically for utility-scale BESS grid connection had been confirmed as of the dataset date; interconnection technical requirements must be obtained directly from the relevant system operator.Ley No. 7593 — Ley de la Autoridad Reguladora de los Servicios Públicos (ARESEP enabling law setting Costa Rica electricity technical quality and tariff framework)
ARESEP technical quality regulations — AR-NTCEN (Normas Técnicas de Calidad de Energía No Convencional) and related norms for distributed and storage interconnection (verify current version directly with ARESEP)
IEC 62933-2-1:2017+AMD1:2021 — Electrical Energy Storage Systems — Unit Parameters and Testing Methods — General Specification (expected in project specifications)
IEC 62933-5-2 — Electrical Energy Storage Systems — Safety Requirements — Electrochemical-based systems (expected in project specifications)
Costa Rica grid parameters: 60 Hz, 120 V single-phase / 240 V split-phase (residential), 120/208 V and 277/480 V three-phase (commercial/industrial) — North American convention		 Gap: Chinese GB/T BESS grid-connection certificates and NEA approvals do not satisfy ARESEP/ICE/distributor interconnection requirements in Costa Rica. The frequency difference alone (50 Hz China vs 60 Hz Costa Rica) requires PCS redesign or reconfiguration; voltage levels also differ materially. Key actions: (a) PCS firmware and hardware — confirm the PCS can be field-reconfigured for 60 Hz operation and the required voltage levels, or whether a 60 Hz-rated variant must be procured; all relevant protection relay settings, anti-islanding parameters, and frequency trip thresholds must be updated and retested; (b) interconnection agreement — engage ARESEP, ICE, or the relevant regional distributor (CNFL, Coopeguanacaste, Cooperelesca, JASEC, ESPH) at the earliest project stage to obtain current interconnection technical requirements and application procedures; (c) IEC 62933 — where project or utility specifications require IEC 62933-2-1 or IEC 62933-5-2 evidence, prepare documentation accordingly, as Chinese GB/T standards are not accepted as equivalent; (d) SCADA / communication protocol — confirm the interface protocol required by ICE or the relevant distributor for BESS monitoring and dispatch.[INFORMATIONAL] Chinese GB/T BESS grid-connection compliance and NEA approvals do not satisfy Costa Rica's ARESEP/ICE interconnection requirements. The PCS must be reconfigured and retested for Costa Rica's 60 Hz grid at 120/240 V (residential) or 120/208 V / 277/480 V (commercial/industrial) — both frequency and voltage levels differ materially from China's 50 Hz, 220/380 V grid. Engage ARESEP and the relevant system operator (ICE or regional distributor) at the earliest project stage to determine interconnection technical requirements, applicable IEC 62933 evidence, and monitoring protocol specifications. No publicly accessible ARESEP or ICE technical specification specifically for BESS grid connection has been confirmed as of the dataset date — direct engagement with the relevant operator is essential before equipment procurement is finalised. Autoridad Reguladora de los Servicios Públicos (ARESEP) — Costa Rica public services regulator2026-06-14 · unverified
Cell and Module Safety — IEC 62619 and INTECO Conformity as International Baseline for Costa Rica BESS China's primary mandatory standard for BESS cells from August 2025 is GB 44240-2024 (Secondary Lithium Cells and Batteries Used in Electrical Energy Storage Systems — Safety Requirements), which replaces the prior GB/T 36276 series as the mandatory safety baseline for large-format BESS batteries over 100 kWh. The prior voluntary standard GB/T 36276-2023 (Lithium-Ion Batteries for Electrical Energy Storage) provides the technical framework for cells, modules, and battery clusters used in EES. These Chinese standards are not harmonised with IEC 62619 and are not accepted as equivalents in Costa Rican project specifications or INTECO conformity assessment. Exporters must obtain IEC 62619 type-test evidence from an ILAC-accredited laboratory in addition to any Chinese GB compliance before supplying BESS cells and modules to Costa Rica projects.GB 44240-2024 — 电化学储能系统用二次锂电池安全要求 (Secondary Lithium Cells and Batteries Used in Electrical Energy Storage Systems — Safety Requirements; mandatory, effective August 1, 2025)
GB/T 36276-2023 — 电力储能用锂离子电池 (Lithium-Ion Batteries for Electrical Energy Storage; voluntary, effective July 1, 2024)		 Costa Rica does not currently have a confirmed standalone mandatory BESS product safety regulation equivalent to the EU Battery Regulation, Chile's SEC lithium battery certification, or a mandatory pre-market IEC 62619 certification regime enforced by a national authority. INTECO (Instituto de Normas Técnicas de Costa Rica) is Costa Rica's national standards body and adopts IEC standards; INTECO adopts IEC 62619 and IEC 62133 as voluntary national standards under the INTECO normative catalogue, but mandatory pre-shipment market-access enforcement of these specific standards for stationary BESS had not been confirmed from publicly accessible official sources as of the dataset date. However, IEC 62619 (Safety Requirements for Secondary Lithium Cells and Batteries for Use in Industrial Applications) and IEC 62133 (Secondary Cells and Batteries Containing Alkaline or Other Non-Acid Electrolytes — Safety Requirements) are the internationally expected safety standards for lithium BESS cells and modules, and Costa Rican project owners, EPCs, ICE, and ARESEP-regulated operators are expected to reference IEC 62619 compliance as a technical prerequisite in project specifications and interconnection agreements. IEC 62933-5-2 (Safety Requirements for Electrochemical-based Energy Storage Systems) is expected at the system level. Exporters should verify the current INTECO/MEIC regulatory scope with INTECO and the Ministerio de Economía, Industria y Comercio (MEIC) before shipment.IEC 62619:2022 — Safety Requirements for Secondary Lithium Cells and Batteries for Use in Industrial Applications (internationally expected baseline for BESS cell/module safety; adopted by INTECO as voluntary national standard)
IEC 62133-2:2017 — Secondary Cells and Batteries Containing Alkaline or Other Non-Acid Electrolytes — Safety Requirements for Portable Sealed Secondary Lithium Cells and Batteries (adopted by INTECO; applicable scope varies by cell format)
IEC 62933-5-2 — Electrical Energy Storage Systems — Safety Requirements — Electrochemical-based systems (system-level safety standard expected in project specifications)
IEC 62933-5-1:2024 — Electrical Energy Storage Systems — Safety considerations — Hazard identification, risk assessment and risk mitigation
INTECO — Instituto de Normas Técnicas de Costa Rica (national standards body; IEC adopting member — verify mandatory vs voluntary scope for BESS with INTECO and MEIC)		 Critical gap: Costa Rican project owners, ICE, and ARESEP-regulated operators reference IEC 62619 as the expected safety evidence for BESS cells and modules. Chinese GB 44240-2024 and GB/T 36276-2023 are not harmonised with IEC 62619 and are not accepted as substitutes in project technical specifications or INTECO conformity assessment. Exporters should: (a) verify the current mandatory versus voluntary INTECO/MEIC regulatory scope for BESS cells and modules with INTECO and MEIC before shipment to confirm whether any pre-shipment conformity obligation exists; (b) obtain IEC 62619 type-test certificates from an ILAC-accredited laboratory for cells and modules supplied to Costa Rica BESS projects; (c) obtain IEC 62933-5-2 evidence at the system level where required by the project owner or interconnection agreement; (d) confirm the applicable IEC 62619 edition referenced in the project specification before committing to a test programme.[INFORMATIONAL] No confirmed standalone mandatory BESS product safety regulation enforced at market entry has been identified for Costa Rica as of the dataset date; however, IEC 62619 is the internationally expected technical baseline for BESS cell and module safety in Costa Rican project specifications and ICE/ARESEP interconnection agreements. Chinese GB 44240-2024 and GB/T 36276-2023 certification alone is not sufficient for Costa Rica project acceptance. Verify the current INTECO/MEIC mandatory regulatory scope for BESS and confirm IEC 62619 evidence requirements with the project owner, ICE/relevant distributor, and any appointed conformity assessment body before shipment. INTECO — Instituto de Normas Técnicas de Costa Rica (national standards body)2026-06-14 · unverified
UN 38.3 Transport Safety Testing — Mandatory for Lithium Battery Imports to Costa Rica via Port of Limón/Moín or Port of Caldera Chinese BESS cell and module manufacturers are required to comply with UN 38.3 for export shipments under international transport conventions. Chinese manufacturers typically hold UN 38.3 test reports and test summaries from CNAS-accredited testing laboratories such as UL, SGS, Bureau Veritas, TÜV, or CAICT. The UN 38.3 Test Summary (required since January 1, 2020) must cover the specific cell or battery type being shipped. A Chinese-origin UN 38.3 test summary from an accredited laboratory is acceptable for Costa Rica imports — the key gap is ensuring the test summary covers the specific cell model, chemistry, capacity, and configuration of the BESS units being shipped, and that it is maintained current with any cell design changes. Cargo routed through the Port of Limón/Moín on the Caribbean or Port of Caldera on the Pacific must comply with IMDG Code dangerous goods stowage, marking, and documentation requirements.UN 38.3 test reports and test summaries from CNAS-accredited Chinese laboratories (CAICT, UL China, SGS China, Bureau Veritas China, TÜV Rheinland China) — acceptable for international transport if the test summary covers the specific cell/battery type being shipped UN 38.3 (Recommendations on the Transport of Dangerous Goods — Manual of Tests and Criteria, Part III, Section 38.3) specifies eight mandatory transport safety tests (T1 Altitude Simulation, T2 Thermal Test, T3 Vibration, T4 Shock, T5 External Short Circuit, T6 Impact/Crush, T7 Overcharge, T8 Forced Discharge) for lithium metal and lithium-ion cells and batteries of all sizes, including cells, modules, and battery packs used in stationary BESS. Since January 1, 2020, a UN 38.3 Test Summary is mandatory documentation that must accompany lithium battery shipments under international transport regulations (IATA DGR, IMDG Code, ADR). Costa Rica is served primarily by the Port of Limón/Moín on the Caribbean coast (main container terminal, operated by APM Terminals Moín) and the Port of Caldera on the Pacific coast. Both ports operate under Costa Rican customs authority (Dirección General de Aduanas) and international IMDG Code obligations. Costa Rica is a party to international transport conventions and the UN 38.3 requirement applies universally to all lithium battery imports by air, sea, or road — there is no Costa Rica-specific exemption. BESS cells and modules exported from China to Costa Rica must be covered by a valid UN 38.3 Test Summary from an accredited laboratory before shipment.UN 38.3 — Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria, Part III, Section 38.3 (mandatory transport safety tests T1–T8 for all lithium cells and batteries)
IATA Dangerous Goods Regulations (DGR) — applies to all air freight of lithium batteries including BESS cells and modules (Juan Santamaría International Airport, San José)
IMDG Code — applies to all sea freight of lithium batteries including BESS cells and modules (Port of Limón/Moín, Caribbean; Port of Caldera, Pacific)
UN Model Regulations, 7th revised edition (2021) — Test Summary requirement in force since January 1, 2020
Dirección General de Aduanas (Costa Rica Customs) — customs authority for import documentation and dangerous-goods compliance at Costa Rican ports		 The gap is documentation scope and currency, not standard equivalence. UN 38.3 is a universal requirement and Chinese-origin test summaries from accredited laboratories are accepted for Costa Rica-bound shipments. Exporters should verify: (a) the UN 38.3 test summary covers the specific cell model (including chemistry, capacity, and format) being exported — a summary for a different cell model or capacity is not transferable; (b) the test summary is from a currently accredited laboratory; (c) any cell design change (electrolyte, separator, electrode, BMS firmware affecting charge/discharge) since the original UN 38.3 testing triggers a reassessment requirement; (d) module-level and battery-pack-level assemblies may require separate UN 38.3 assessment if they constitute a battery as defined under international transport regulations; (e) engage a dangerous-goods shipping agent familiar with Costa Rican ports (Limón/Moín on the Caribbean, Caldera on the Pacific) and Juan Santamaría International Airport DG regulations to confirm packaging, marking, labelling, and documentation requirements for BESS cell and module shipments.[INFORMATIONAL] UN 38.3 transport compliance is universal — a Chinese-origin test summary from an accredited laboratory is accepted for Costa Rica shipments provided it covers the specific cell model and is current. The primary risk is scope mismatch (wrong cell model or capacity in the summary) or an outdated summary after a cell design change. Verify test summary coverage and currency before each shipment. Engage a dangerous-goods shipping agent familiar with Costa Rican ports (Port of Limón/Moín on the Caribbean coast, Port of Caldera on the Pacific coast) and Juan Santamaría International Airport (San José) DG regulations to confirm packaging, marking, labelling, and documentation requirements for BESS cell and module shipments. United Nations Economic Commission for Europe (UNECE) — Recommendations on the Transport of Dangerous Goods2026-06-14 · unverified

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