India, Aug. 26 -- Curiosity is taking root in South Korea's woodlands where solar trees are emerging as a potential bridge between clean energy demands and forest preservation. Can these vertical installations ensure that growing power needs do not come at the expense of precious green spaces? The answer may shape the next phase of renewable energy.

Solar panels have fuelled innovation everywhere, but in South Korea, their expansion has often meant clearing large parts of woodland. In 2018, over 2,400 hectares were lost to solar farm development. Flat-panel arrays, stretched across the landscape, have stripped habitats, reduced carbon absorption, and even made areas hotter.

Enter the solar tree, designed to slot into existing forest can...