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Optimal adoption and cost-effectiveness of rooftop solar and wind turbines for community energy systems under climate change

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  • Wu, You
  • Zhong, Lexuan

Abstract

Community energy systems represent a promising pathway for urban decarbonization, yet developing locally adapted energy supply strategies remains challenging due to evolving climate conditions, local environmental factors, and technological advancements. Here, this study presents a bottom-up modeling framework that integrates these factors to assess the optimal adoption of community solar and wind resources for community energy systems across eight major Canadian cities under future climate periods ranging from 1 °C to 3.5 °C. The results indicate that the solar-only and hybrid strategies reduce costs by over 40 % from the 1 °C to the 3.5 °C climate period, while wind-only strategy increase costs by at least 30 % in six cities. Furthermore, technological advancements could contribute to an additional 5 %–20 % cost reduction across all energy supply strategies. Hybrid supply strategies consistently offer the best balance of economic viability and resilience in current and future periods, while the optimal single-resource strategy remains highly dependent on local solar or wind resource availability.

Suggested Citation

  • Wu, You & Zhong, Lexuan, 2025. "Optimal adoption and cost-effectiveness of rooftop solar and wind turbines for community energy systems under climate change," Renewable Energy, Elsevier, vol. 251(C).
    • Handle: RePEc:eee:renene:v:251:y:2025:i:c:s0960148125011358
    DOI: 10.1016/j.renene.2025.123473
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