As connected devices multiply and demand for clean electricity grows, the limitations of conventional solar technology are becoming more apparent. Traditional silicon panels are efficient at scale, but they are often rigid, energy-intensive to manufacture, and poorly suited for low-power or indoor applications. WattByWatt, a Canadian clean energy company, is taking a different approach by developing perovskite-based solar technologies designed to generate power across a wide range of environments — from rooftops to everyday electronics. 

At the core of WattByWatt’s innovation is the use of perovskite materials, a class of semiconductors that can convert light into electricity more efficiently and at lower production costs than traditional silicon. Unlike conventional solar cells, perovskites can harvest energy not only from direct sunlight but also from ambient and artificial indoor light, opening new possibilities for energy harvesting at very small scales. 

The company’s technology portfolio includes micro-photovoltaic solutions designed to power sensors, wearables, and Internet-of-Things (IoT) devices without relying on disposable batteries. By continuously harvesting ambient light, these systems can extend device lifespans, reduce electronic waste, and lower maintenance costs in applications where battery replacement is impractical. 

WattByWatt is also developing tandem solar cells, which combine perovskite layers with traditional silicon to increase overall solar panel efficiency. Tandem designs capture a broader range of the solar spectrum, allowing more energy to be extracted from the same surface area — a critical advantage as demand for high-performance solar grows in space-constrained environments. 

The company has received government support to scale production and advance commercialization, reflecting growing confidence in perovskite photovoltaics as a next-generation clean energy solution. While perovskite technology is still emerging, WattByWatt’s focus on manufacturability and real-world applications positions it at the forefront of this rapidly evolving field. 

WattByWatt’s vision is straightforward yet ambitious: to make clean energy generation ubiquitous, efficient, and accessible at every scale. 

Learn more about WattByWatt on our website.