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Wildflower-Managed Solar Farms Can Double On-Site Bumblebees, Study Finds

High-resolution modeling shows benefits remain mostly within site boundaries unless surrounding habitats are restored.

Overview

  • Researchers modeled Britain’s 1,042 existing solar farms at 10 m resolution by downscaling established RCP/SSP land‑use futures and adding key features such as hedgerows and wildflower patches.
  • Site management was the dominant factor for on‑site outcomes, with wildflower margins predicting about a 120% increase in bumblebee numbers compared with turf.
  • Landscape composition around solar farms more strongly determined bumblebee densities in nearby foraging areas than on‑site management alone.
  • A sustainable future scenario with restored floral resources and habitat delivered the only modeled gains that extended beyond solar farm boundaries.
  • The peer‑reviewed study, funded by NERC with support from Low Carbon and published in Global Change Biology, recommends strategic siting and biodiversity‑focused management to maximize conservation value.