HomeNewsSolar on Canals: A Bright Idea for Water and Energy Conservation

    Solar on Canals: A Bright Idea for Water and Energy Conservation

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    Solar panels are a common sight in many sunny places, but what if they could also cover the canals that carry water across arid regions? This idea has been discussed for a long time, but it is now gaining more attention and support from various stakeholders. Installing solar panels over canals could have multiple benefits, such as reducing water evaporation, generating electricity, and fighting climate change. However, there are also some challenges and uncertainties that need to be addressed before this idea becomes a reality.

    One of the main advantages of solar on canals is that it could save a lot of water that would otherwise evaporate under the hot sun. According to a study by the University of California, Merced, covering California’s 4,000 miles of canals with solar panels could save 63 billion gallons of water per year. That’s enough to irrigate 50,000 acres of farmland or meet the residential water needs of over 2 million people. Water is a precious and scarce resource in many regions, especially in the face of droughts and climate change. Saving water could also help preserve the ecosystems and wildlife that depend on it.

    Another benefit of solar on canals is that it could produce a lot of clean energy that could power homes, businesses, and industries. The same study estimated that solar on canals could generate 13 gigawatts of power, which is equivalent to the output of 10 nuclear power plants or enough to supply the entire city of Los Angeles from January through early October. Solar energy is a renewable and carbon-free source of electricity that could help reduce greenhouse gas emissions and combat global warming. Solar on canals could also create jobs and economic opportunities for the communities along the waterways.

    However, solar on canals is not without challenges and drawbacks. One of the main concerns is the cost and feasibility of installing and maintaining solar panels over water. Utilities have mostly been reluctant to pursue this idea, citing that solar is cheaper and easier to build over solid land. They also worry that covering the canals would hinder access and maintenance of the water infrastructure, and that solar panels could pose a safety hazard for the public. Moreover, there are potential environmental impacts that need to be considered, such as the effect of shade on algae growth and invasive species in the canals.

    To address these issues, more research and data are needed to evaluate the costs and benefits of solar on canals. Some pilot projects are already underway or planned in Arizona, California, and the Gila River Indian Community, with the help of federal funding and partnerships . These projects aim to test the performance and impacts of solar on canals, and to develop design solutions that could overcome the technical and operational challenges. For example, one possible design is to use flexible and lightweight solar panels that could be rolled up and moved when needed.

    Solar on canals is an innovative idea that could revolutionize the way we think about renewable energy and water conservation. It could offer a win-win solution for both water and energy needs, while also contributing to the fight against climate change. However, it is not a simple or easy idea to implement, and it requires more research and experimentation to prove its viability and sustainability. As more data is collected and analyzed, we will have a better understanding of the true potential and challenges of this bright idea.

    Relevant articles:
    Solar panels over canals could help save water. Why aren’t they more …
    Should solar panels cover Arizona canals? SRP, ASU looking at effects
    Best Solar Panel Installation Companies in Arizona – CNET

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