India explores vast canal networks to build solar power plants without using extra land

Finding open land for green energy projects is getting harder as India scales up its clean power capacity. This problem is pushing planners to look at unique solar solutions that do not need fresh land acquisitions. One such idea is placing solar panels directly over the country's huge irrigation and water-supply canal networks. These setups are known as canal-top photovoltaics, where workers mount panels on high frameworks built right over water channels without blocking the flow. The main benefit is that these projects save valuable property space, as seen in Punjab where setting up a twenty megawatt canal-top setup saved nearly one hundred acres of ground. Covering water channels also helps lower water loss from heat evaporation while the cool air underneath improves how well the panels work. A one megawatt project set up over a water channel in Mehsana saved close to nine million litres of water yearly and made one point six million electricity units. India started early with this tech by launching a project in Gujarat back in 2012, followed by larger setups in Vadodara and Punjab over the next few years. In late 2025, officials in Punjab invited interest for larger forty megawatt projects across thousands of kilometres of waterways, while Haryana also started reviewing six of its irrigation channels for similar setups. The Ministry of New and Renewable Energy launched a pilot scheme back in 2014 with money support for these projects, and a study in 2024 figured out India's total technical potential for these systems is around one hundred thirty-one gigawatts. Even with these benefits, growth has stayed slow because building high metal frames over flowing water is expensive, needs extra steel, and makes cleaning or fixing parts hard. Experts note that fixing these cost hurdles will need special funding help, clear guidelines, and careful site choices.