Earth Day: How Ultracapacitors Conserve Energy
April 17, 2017 | Maxwell Technologies
Fifty years ago Earth Day was launched, and its golden jubilee will take place this Saturday. Earth Day’s mission is to educate the public about environmental issues and ways that individuals, government and businesses can conserve our planet’s resources.
Energy storage is one key strategy for energy efficiency in a diverse range of industries. Maxwell Technologies has deployed over 44 million ultracapacitor cells acting as energy storage devices for wind turbines, solar farms, automobiles, trains, and the energy grid.
Ultracapacitors, also known as supercapacitors, are electrostatic energy storage devices that specialize in delivering fast, high power in short timeframes. They complement batteries in applications where batteries are overworked to provide burst power.
In the spirit of Earth Day, here’s a glimpse into how ultracapacitors contribute to energy efficiency across industries today.
Most rail systems use braking pads to reduce the train’s speed, producing excessive friction, heat and noise. Ultracapacitors make trains more energy efficient via regenerative braking—a unique ultracapacitor capability to capture, save, and reuse energy that would otherwise dissipate as heat.
Maxwell Technologies’ ultracapacitors are employed for subway energy recovery in Beijing’s No. 8 rail line. We were awarded the Climate Change Business Journal Award for our ultracapacitor technology in energy recuperation for electric rail systems, including the Southeastern Pennsylvania Transportation Authority light rail.
To learn more about how ultracapacitors contribute to energy efficiency, visit our page Where Ultracapacitors Work. Thanks for reading, and happy Earth Day.
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