Solar farms can contribute to deforestation when built on forested land, but this accounts for less than 2% of solar installations in the United States, according to Department of Energy data. The vast majority of utility-scale solar projects are sited on previously degraded land, agricultural areas, or desert terrain. However, without proper planning and enforcement of land-use policies, the renewable energy transition could inadvertently drive forest loss in regions with weak environmental protections.

How Do Solar Farms Impact Forest Land?

When solar developers clear forests, the environmental trade-offs become complex. A 2023 Nature Sustainability study found that solar farms built on forested land in the southeastern U.S. can take 40-70 years to offset the carbon released from tree removal. The immediate biodiversity loss and disruption to ecosystems can negate short-term climate benefits. Smart siting policies prioritize brownfields, rooftops, and already-cleared land to avoid this problem entirely.

What Percentage of Solar Projects Require Forest Clearing?

Research from the University of Wisconsin-Madison analyzing 3,000 utility-scale solar facilities found that only 1.8% were built on forested land. Most projects occupy former cropland (32%), grasslands (28%), or disturbed industrial sites (23%). States like Maryland and Virginia have implemented forest protection requirements that mandate solar development on degraded lands first, demonstrating that policy frameworks can effectively prevent deforestation while expanding renewable capacity.