Solar Green Roofs Resource Guide

18 June 2025

Solar green roofs combine rooftop solar panels with vegetation layers to maximize the use of limited roofspace in cities. This innovative approach delivers climate, biodiversity, and energy benefits while helping to tackle urban challenges such as heat, flooding, and energy demand. The guide explores technologies, design considerations, benefits, costs, and policies to support wider adoption. It aims to inspire urban planners, policymakers, and industry stakeholders. Discover why integrating solar and green roofs is a win-win solution for cities.

Reduce heat flow through roofs by 70–90% in summer.

Green roofs can reduce heat flow through roofs by 70–90% in summer, improving energy efficiency and comfort in buildings.

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Green roofs can play a vital role in urban biodiversity.

Studies in Vienna recorded over 90 wild bee species on green roofs, showing their vital role in urban biodiversity.

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68% of the world’s population are projected to live in cities by 2050

increasing pressure on infrastructure.

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Solar Green Roofs Resource Guide

Discover the groundbreaking potential of integrated solar green roofs with our comprehensive Solar Green Roofs Resource Guide.

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This guide is the result of a collaborative effort led by the World Green Infrastructure Network (WGIN), the European Federation of Green Roof and Living Wall Associations (EFB), and SolarPower Europe, with contributions from over 20 experts across Europe, North America, and beyond. It brings together voices from municipalities, academia, industry, and the solar and green infrastructure sectors to support the scaled integration of solar green roof systems.

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