India’s vast canal network offers a land-free path to solar power
Similar to floating solar, the biggest advantage of canal-top photovoltaics is that they require virtually no additional land, especially as land acquisition for large-scale solar is also becoming increasingly more expensive; in Punjab, the installation of 20 MW of canal-top systems is estimated to have saved nearly 100 acres of land
We haven't written up this one. The Hindu - Sci-Tech has the full story — the link below goes straight to it.