Energies Media
Canada sits on an extraordinary amount of water. Behind massive dams, across toxic mining ponds, and above storm basins, vast surfaces lie idle. They are productive below the waterline, but above it, they do nothing.
Canadian developers see this differently now. They do not see these water bodies as liabilities, but rather as untapped real estate. They want to cover them with floating solar panels to quietly transform forgotten landscapes into clean power plants.
Floating solar tech is gaining fast traction among project managers. Developers are targeting a surprisingly wide range of sites, with hydro reservoirs, industrial ponds, and old storm basins as top choices. Hydro reservoirs hold the biggest potential.
Utilities face rising electricity demand today, yet building new dams or retrofitting old ones is far too expensive. Floating solar offers a much cheaper route because it needs no new land or power lines.
Look at the Williston Reservoir in British Columbia, which sits behind the W.A.C. Bennett dam. Covering just 10% of its surface could generate 13,500 GWh yearly, which equals the output of the massive dam itself!
BC Hydro is already moving fast. Engineers are testing floating platforms on active reservoirs today to create hybrid water-energy systems. Solar generation peaks in the summer, which is exactly when utilities want to save water reserves.
Mining companies show huge commercial interest in this setup. Tailings ponds and tar pits are heavily contaminated, meaning you cannot use them for anything else. That makes them perfect candidates for floating solar installations.
Chris Bartle works for Ciel & Terre USA. He says a northern Alberta company is evaluating solar on its tar pits right now. Toxic water is usually a liability, but for floating panels, it does not matter at all.
Calgary-based Lightvolt Solar takes this concept even further. They formed a joint venture combining solar panels with water filters that target mine tailings specifically. Lightvolt’s CEO expects their first contract within months. Mining firms can generate clean electricity while cleaning up toxic water, meeting two major legal duties with one installation.
Canada has plenty of water, yet its northern location creates a giant hurdle. Low solar insolation—the amount of sunlight reaching a given surface—is the real issue. Bartle says this is the single biggest barrier in Canada, even more so than snow or ice.
The U.S. Energy Information Administration gives context here. American sites get 3.5 to 6.5 kWh/m²/day of sunlight, while Canada gets only 2.5 to 4.5 kWh/m²/day. The gap grows wider the farther north you travel.
Northern sunlight strikes at a very low angle, meaning capturing it requires steep panel tilts. Standard floating solar only tilts to 12 degrees, limiting how much low-angle light panels can catch.
Engineers are looking at Germany for answers. Sinn Power built a 1.8 MW vertical floating solar plant in Bavaria using bifacial panels that catch light from both sides. It is a model Canadian developers watch closely.
Cold winters add heavy complexity to these projects. Thick ice forms around floating panels across Canada, causing massive structural stress that can freeze systems in place or destroy them. Still, engineers refuse to back down.
Researchers at Western University built an air-bubbler system that pushes warm water from pond bottoms up to the surface to stop thick ice from forming. They tested it on an Ontario storm pond using a 7 kW pilot with foam board under the panels for extra insulation.
Results came out in Applied Energy in 2026. Researchers proved floating solar works even in deep freezes, meaning cold climates no longer stop deployment. It is a massive step forward for the industry.
Canada’s story is just starting, but early projects build steady momentum. One early system launched in Leamington, Ontario, where Profloating developed the array on a storm pond at Under Sun Acres.
Profloating also built a 3.2 MW floating array in Cohoes, New York. That $8 million project uses 5,880 panels and is the first municipally owned system in the U.S. It reduces water evaporation and stops algae blooms, giving Canadian utilities a nearby test case.
The next few years will decide everything. Tailings contracts will close soon, BC Hydro will release new reservoir data, and vertical panels will hit Canadian waters. The water is ready, and the industry is moving.
You might wonder why developers fight ice, low light, and toxic water just to float panels instead of putting them on dry ground. Water acts as a natural cooling system.
Solar panels lose efficiency when they get too hot on land, but water underneath keeps them cool. Because of this effect, floating panels actually produce up to 15% more electricity than the exact same panels on land. The water makes the panels work better, and the panels stop the water from evaporating—making it the ultimate hidden win-win.
Kelly is an experienced writer with 15 years of experience exploring the big stories that shape our world, from tech breakthroughs and space exploration to climate, energy, and the fascinating quirks of science. She has a talent for turning complex ideas into sharp, memorable insights that stay with readers long after they’ve finished reading.
Kelly is an experienced writer with 15 years of experience exploring the big stories that shape our world, from tech breakthroughs and space exploration to climate, energy, and the fascinating quirks of science. She has a talent for turning complex ideas into sharp, memorable insights that stay with readers long after they’ve finished reading.
Kelly is an experienced writer with 15 years of experience exploring the big stories that shape our world, from tech breakthroughs and space exploration to climate, energy, and the fascinating quirks of science. She has a talent for turning complex ideas into sharp, memorable insights that stay with readers long after they’ve finished reading.

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