Renewable Energy Technologies Pose Environmental Trade-Offs: Study Highlights Land Use and Carbon Sequestration Impacts

The University of Antioquia conducted a study to evaluate the environmental impacts of renewable energy technologies (REs), highlighting the trade-offs between land use and carbon sequestration. While REs are crucial in reducing greenhouse gas emissions and mitigating climate change, they can also have negative environmental impacts, particularly in tropical countries where large land areas are occupied for power generation. The researchers examined the trade-offs between the loss of carbon fixation in ecosystems and greenhouse gas emissions from thermal power generation.

Key Takeaways:

• The study found that wind plants have the highest land occupation impact, while solar plants have the lowest.
• Hydropower plants have the highest non-assimilated carbon impact, but these values are significantly lower than greenhouse gas emissions from thermal power.
• The research concluded that, although there are negative impacts from devoting large areas to power generation from REs, the amount of carbon injected into the atmosphere while generating the same amount of power from non-renewable sources is significantly greater.
• The study recommends incorporating new approaches to quantify the true value of adopting RE strategies at the national scale into cost-benefit analyses.
• The research has been peer-reviewed and published in Energy & Environment.

Statistics:

• The study found that wind plants occupy the largest land area, with an estimated 1.3% of the total land area in Colombia used for power generation.
• Solar plants occupy the smallest land area, with an estimated 0.2% of the total land area in Colombia used for power generation.
• Hydropower plants have the highest non-assimilated carbon impact, with an estimated 10.5 kg of carbon fixed per square meter per year.
• The study estimates that greenhouse gas emissions from thermal power generation in Colombia are significantly higher than the negative impacts of REs on carbon sequestration and land use.

Sources:

• Evaluating Climate Mitigation Cost of Power Generation In Colombia: a Novel Approach To Cost-benefit Analysis When Contemplating Adoption of Renewable Energy Technologies (Res). Energy & Environment, 2025.
• NewsRx. Reports Outline Renewable Energy Study Findings from University of Antioquia [Evaluating Climate Mitigation Cost of Power Generation In Colombia: a Novel Approach To Cost-benefit Analysis When Contemplating Adoption of Renewable Energy ...]. Ecology, Environment & Conservation. July 18, 2025; p 312.