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The rapid expansion of renewable energy sources (RES) presents unprecedented challenges to grid stability, reliability, and management. This review analyzes integration issues from wind and solar intermittency, emphasizing impacts on reliability, power quality, and economics. Global renewable capacity reached 3372 GW in 2023 (260% growth since 2010), but grid adaptation lags, creating a technological gap threatening energy security. Key barriers include voltage fluctuations, frequency instability from reduced inertia, and grid congestion causing economic losses and ~5% renewable curtailment (IEA, 2023; IRENA, 2023). Integration costs exceed 25–40/MWh at 50% penetration (NREL, 2022; IEA, 2023). Critical solutions involve advanced energy storage (85% cost reduction since 2010, BloombergNEF, 2023), smart grids (>100 million meters), and AI forecasting (90–95% accuracy). Case studies (Denmark, California, Germany) demonstrate effective strategies like market integration, demand response, and grid reinforcement. Projected investments of 2. 4 trillion (2024–2030) target transmission (35%), distribution (28%), and storage (22%) (IEA, 2023), enabling a potential 70% renewable share by 2030 with a 20-year NPV exceeding 2. 8 trillion. Coordinated technological advancement, supportive policies, and substantial investment are essential to overcome bottlenecks and ensure a resilient, cost-effective transition.
Nejla et al. (Mon,) studied this question.
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