Cluster E: Technology & Innovation

Battery Storage in Emerging Economies — Expert Assessment by PV-BESS-Assessor

📚 NREL📅 2025🌎 Cluster E
Examines challenges and opportunities for BESS in emerging and developing economies. Analyses financing hurdles and the role of BESS in improving energy access.
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Technical Classification

Definition

NREL study on challenges and opportunities for battery storage in emerging and developing economies. Analyses specific financing hurdles, grid instability, and energy access applications.

Technical Background

Emerging markets: Higher storage demand (grid instability, lack of reserve capacity) combined with more difficult financing (WACC 12-18% vs. 5-8% in EU). Off-grid BESS for energy access (mini-grids). Specific challenges: extreme temperatures, unreliable grid frequency, lack of maintenance expertise, regulatory uncertainty, currency risks.

Risks

Country risk (political instability, expropriation). Currency risks with USD-denominated investments and local revenues. Extreme climatic conditions accelerate degradation (+30% at >40 degrees C). Lack of local maintenance expertise. Theft/vandalism.

Standards & Regulations

IFC Performance Standards, World Bank ESG Framework, Green Climate Fund Investment Criteria, IEC 62124 (PV Stand-Alone Systems), IEEE 1547 (Interconnection), national Grid Codes (varying).

Assessment Methods

Country risk assessment (political, regulatory, financial). Climate stress analysis for battery degradation. Off-grid system sizing. Blended finance structuring. Impact assessment according to IFC methodology.

Typical Shortcomings

Limited operational experience under local conditions. Standards harmonisation lacking. Data basis for degradation under extreme conditions is thin. Maintenance logistics in remote regions are complex.

Relevance for Investors, Insurers & Operators

Investors: Impact investment opportunity with higher risk profile. Insurers: Country-specific risk assessment and adapted policies. Operators: Techno-economic adaptation for climatic and infrastructural boundary conditions.

Assessment by PV-BESS-Assessor

NREL analyses BESS in emerging economies: financing hurdles, grid instability, off-grid applications. Of limited direct relevance for the German market, but valuable for international investors.

Implications for Investors

Emerging markets offer higher returns at higher risk. Financing structures (DFI, blended finance) differ. Energy access as impact investment.

Implications for Assessments

Limited direct relevance for PV-BESS-Assessor core activities. Relevant for international mandates: off-grid BESS, climate resilience, adapted standards.

Technical Risks

Country risk, currency risks, inadequate infrastructure, political instability. Extreme climatic conditions accelerate degradation.

Regulatory Significance

Relevant for international climate financing (Green Climate Fund). Regulatory frameworks are still being developed.

Conclusion by PV-BESS-Assessor

PV-BESS-Assessor considers the study relevant for international mandates. Limited applicability for the German core market, but methodological insights for risk assessment.

PV-BESS-Assessor Expert Team
PV-BESS-Assessor | Prosperus GmbHTUV-certified expert assessors for photovoltaics & battery storage

Last updated: 2026-06-16