From nuclear to PV and hydro storage : exploring the transition to renewable energy systems

Abstract

The transition from nuclear power to photovoltaic (PV) energy has significant implications for electricity markets and energy storage systems. This study employs a system dynamics (SDs) model to analyze the effects of replacing nuclear energy with PV on market equilibrium and the operation of pumped hydropower storage (PHS). We model two distinct regions, one with stable demand and generation and another with high seasonality, to examine the interplay between generation capacity, market pricing, and storage efficiency. Our findings indicate that while PV reduces reliance on nuclear energy, it leads to increased electricity prices due to higher storage costs and the intermittent nature of solar generation. The introduction of PV also alters intraday and seasonal price dynamics, influencing both market behavior and consumer costs. These results highlight the importance of considering regional conditions and storage capacity when designing energy transition policies. Our study provides insights for policymakers and energy planners on optimizing renewable energy integration while ensuring economic and market stability.