The Grid Storage Gap: Why $131 Billion in Renewable Investment Is Being Stranded by Inadequate Transmission and Storage Infrastructure
Objective
Quantify the scale of renewable energy curtailment and stranded investment caused by grid infrastructure gaps, assess the economic cost of the storage and transmission deficit, and evaluate which storage and grid modernization technologies have the strongest deployment evidence.
Methodology
Analysis of utility-scale renewable project data from IEA, IRENA, and national grid operators across 40 countries. Curtailment rates calculated from grid operator real-time data for US (CAISO, ERCOT, MISO, PJM), EU (ENTSO-E), China (NEA), and India (POSOCO). Grid interconnection queue analysis from LBNL dataset of 14,000+ US projects. Storage technology cost curves from BNEF. Cross-country comparison of grid modernization policies and outcomes.
Findings
The global energy transition is facing a critical infrastructure bottleneck. Key findings:
Key Assumptions
- •Curtailment data from grid operators is complete and consistently reported across jurisdictions
- •Storage cost curves continue on current trajectory without major supply chain disruption
Limitations
- •Chinese grid data has lower transparency than Western counterparts
- •Permitting reform impact difficult to isolate from other factors in cross-country comparison
- •Long-duration storage (10+ hours) technologies have much wider cost uncertainty ranges
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Evaluation Scores
Data Sources
Lawrence Berkeley National Lab — Queued But Not Built: US Grid Interconnection 2024
governmental
Reliability: 95%