A solar future would use 0.3% to 5.2% of each region’s land
By 2050, the model estimated the smallest land share in India and the largest in Japan and South Korea; results also varied with solar’s share of electricity.
The key idea
The amount of land required for solar power is not one fixed figure: it varies by location, the scale of expansion, and how parks are managed.
The study, in plain language
Solar panels produce electricity where they are installed, but building many solar parks also requires land that could be used for crops and other activities. The team added data from existing solar installations to a model linking energy, economics, land use, and climate to explore several possible futures.
In scenarios for 2050, the required area varied by region and with solar’s share of electricity and projected panel efficiency. In the model, a solar park could displace other land uses and prompt changes in other regions. Management of vegetation within parks also changed the emissions estimated from these land-use changes.
What they found
- The land required varied with the region, solar expansion, and projected panel efficiency.
- Vegetation management within solar parks changed the emissions estimated from land use.
- In the model, displacing other activities could cause land-use changes in other regions.
Something to think about
When you hear that an energy source uses a lot or a little space, ask where, under which scenario, and what happens to the surrounding land.
How they studied it
The team combined observations from existing solar plants with an energy, economics, land-use, and climate model. They simulated expansion scenarios through 2050 for three regions: the European Union, India, and Japan and South Korea together. These are simulations of possible futures, not measurements.
What the study cannot show
- Projections depend on assumptions about demand, technology, location, and agriculture.
- The model does not represent every local condition in detail and excludes agrivoltaics.
- It cannot assign the same impact to every park or compare every solar installation with all fossil-fuel sources.
The original study
The potential land requirements and related land use change emissions of solar energy
Source under CC BY 4.0. English adaptation and explanation by PaperFlow, with AI assistance. The text has been reorganized for a general audience; it is not the complete paper and does not imply endorsement by its authors.
One study alone does not represent a field's consensus. Educational content does not replace professional advice. Report a possible error.
