Alberta’s Solar Standoff: Can ‘Agrivoltaics’ Save Renewable Energy and Boost Crop Yields?
Alberta is facing a critical juncture in its renewable energy transition, as new regulations threaten to halt solar farm projects and potentially stifle agricultural innovation. The province’s recent rules, banning solar installations on agricultural land and demanding upfront decommissioning funds, are drawing criticism from developers and raising questions about the future of sustainable energy in the region.
The shift comes as a response to concerns over abandoned oil and gas wells – a costly environmental problem estimated at $100 billion – prompting preemptive legislation targeting solar farms. However, a growing body of research suggests a promising solution that could address both energy and food security: agrivoltaics.
Agrivoltaics is the practice of intentionally combining solar energy production with agricultural land use, creating a synergistic system that benefits both. Studies worldwide demonstrate that partially shading crops with solar panels can actually increase yields. This is due to the microclimate created beneath the panels, which conserves water, protects plants from extreme weather, and moderates soil temperatures.
“The temperatures are cooler, milder and all around more pleasant for plants,” explained a researcher who co-authored a recent study on the topic. Last year, their team found that strawberry yields increased by 18% under solar panels compared to open-field cultivation. Similar yield boosts have been observed for a wide range of crops, including basil, broccoli, corn, grapes, and tomatoes.
This dual-use approach offers a compelling path toward meeting Canada’s food and energy needs while reducing reliance on fossil fuels. Importantly, new research indicates these benefits persist even when the solar panels aren’t actively generating electricity. Analyzing the performance of agrivoltaic systems, scientists found that the beneficial microclimate remains, providing value to farmers regardless of power output.
However, Alberta’s current regulations pose a significant obstacle. The province requires renewable energy developers to return land to its original, undisturbed state after a project’s lifespan, demanding substantial financial security upfront – 30% of the estimated reclamation cost for new projects and 15% for existing ones. This financial burden, coupled with the ban on agricultural land use, effectively prevents the widespread adoption of agrivoltaics.
While Alberta mandates agricultural impact assessments for solar projects, it provides limited guidance on optimizing the co-use of land. Furthermore, Canadian zoning laws currently do not recognize agrivoltaics as a distinct land-use classification, creating regulatory ambiguity.
To unlock the potential of agrivoltaics, Canada could learn from countries like France and Italy, which have established specific legislation to support this innovative farming practice. Clearer regulations would provide certainty for both farmers and investors, encouraging the development of these dual-purpose systems.
Experimental results continue to demonstrate the value of agrivoltaics. Research shows that the shade provided by solar panels moderates soil temperatures and enhances soil moisture, delivering benefits even when the system isn’t generating power. Government policy must adapt to this reality, recognizing the potential for agrivoltaics to simultaneously address energy needs, support farmers, and increase food production. Alberta’s current rules, rather than protecting the environment, ultimately hinder the solar industry and prevent farmers from leveraging infrastructure to grow more food for everyone.
