Tencent Digital (Wen Xin) According to Ars Technica, a start-up company called EnGoPlanet installed four street lights in a Las Vegas square, powered entirely by solar energy and human motion. EnGoPlanet's devices are not just street lights. They can also power a variety of environmental monitoring sensors, support video surveillance, and provide a USB interface for device charging.
At the top of these lamps is a solar panel with "human kinetic energy tiles" installed on the road surface. According to media reports, according to the pressure of people walking, these tiles can generate 4-8 watts of electricity. The generated renewable energy is stored in the battery for night use. In Las Vegas, where rare, low-lighting hours are available, this solar cell + human kinetic energy design is quite practical - as long as there is enough traffic.
Ars Technica stated that the four street lights integrate multiple sensors that can gather information, and what information they collect is still unknown. EnGoPlanet listed streetlights' additional features in a promotional video: environmental monitoring, air quality monitoring, video surveillance, and vague "intelligence analysis." The positive significance of this project is to replace the more environmentally friendly street lights. The negative significance is that users can be monitored by a private company while replacing the traditional street lights with new street lights.
These lights are also WiFi hotspots. According to the Clean Technica website, the LED light color changes with the season or the surrounding activities.
EnGoPlanet said that the annual global electricity bill for urban street lighting is as high as 40 billion U.S. dollars (approximately 273.2 billion U.S. dollars). Using traditional electricity generation methods, this alone emits 100 million tons of carbon dioxide annually. However, if you consider that the US energy consumption in 2014 will generate 5.4 billion tons of carbon dioxide, this figure is not high. However, this is only the beginning.
Source: Ars Technica
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