Posts tagged with "Urban Green Energy":

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The next step in renewable energy is right under our feet

The New York Times journalist Thomas Friedman once asked, “Do you know what my favorite renewable fuel is? An ecosystem for innovation.” If you pose the same question to Pavegen founder and CEO Laurence Kemball-Cook, his answer would most likely be: foot traffic. That’s because Kemball-Cook, who is passionate about climate change, believes “technology alone won’t make cities perform more efficiently. It’s about changing behaviors.” To that end, he spent time developing renewable energy solutions in built-up urban environments and ultimately landed on the idea of capturing ambient energy from people and footfall. After testing a series of prototypes, Kemball-Cook jumped in feet first and launched Pavegen, a company that harvests energy and data from foot traffic. Building a complex technological product that operates reliably in all physical conditions isn’t easy, however. City streets are constantly undergoing challenges, from extreme temperature variations to a wide range of forces and impacts, Kemball-Cook explained. “Engineering this versatility into our system has been a big challenge, and it has been a highly iterative process to get to where our design is today,” he said.

How it works

At its core, Pavegen technology is a multi-functional, custom flooring system that transforms foot traffic into off-grid electricity. As pedestrians walk across the system, the weight from their steps creates a vertical movement in the top surface between 5 and 10 millimeters. Electromagnetic generators below the surface compress, creating a rotary motion which produces 2 to 4 joules of energy per step, or roughly 5 watts of continuous power which can be stored in batteries or deployed locally to power applications such as lighting, sensors, and data transmission. Pavegen’s latest model, the V3, features a unique, triangular configuration that enables the tiles’ connected surface to move as a whole. As a result, Kemball-Cook says the formation enables a generator to be placed under each point of the tiles, which translates into greater energy converted per square foot than previous models—200 times more than initial prototypes, in fact. Further, the size of the triangles and the amount of resistance in the flywheels have been modeled using data on the length, speed, and force of human steps. “We use this information to maximize efficiency, and capture most of the available energy from footfall to produce a steady stream of off-grid energy and data.” Additionally, the Pavegen system is able to connect to a range of mobile devices and building management systems. “As well as energy, our systems also provide data on energy output and can connect to users’ smartphones via low-power Bluetooth beacons,” Kemball-Cook said. “We have an app where people can see how much electrical energy they are generating and convert this into rewards, which also generates valuable relationship data.” Ultimately, strengthening the relationship between people and the environment is what Pavegen is all about. “Our technology enables people to directly engage with clean energy, to increase their understanding of sustainability issues, and to generate useful off-grid energy,” he said. “Pavegen’s combination of physical interactivity and rich data is helping to bring smart cities to life. Forget the Internet of Things, we’re building the Internet of Beings.” [youtube]
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Product> Six Green Products to Bring Your Project Positive Energy

These products will keep your next project from being an energy guzzler. Eddy Urban Green Energy At just six feet in height, the Eddy wind turbine features a dual axis design that evenly distributes horizontal and vertical forces along the length of the axis for durability. In moderate wind speeds, it produces approximately 750 kWh of solar-ready power. In addition to IEC-certification for Wind Turbine Safety, Noise Levels, and Power Performance, Eddy is also ISO and UL certified. RecoupAerator 2000DX UltimateAir This commercial-grade energy recovery ventilator (above) features a proprietary wheel design made up of hydroscopic and non-hydroscopic materials in a random fiber matrix media for increased surface area, resulting in finer filtration. With an airflow capacity of up to 2,000 CFM, its comparison between two air stream temperatures (apparent sensible effectiveness) has been rated at 96 percent. It is also MERV 12 compliant. WebCTRL Automated Logic This web-based building automation system integrates major electrical systems, mechanicals, backup generators, fire systems, and building elevators. The program can also generate work orders for building system maintenance, bills for tenant’s off-hours use, and real-time pricing structures. Energy use trend reports and thermographic floor plans also tie into effective conservation features, such as setpoint optimization, optimum start times, and short-term demand reduction. Parans Solar Lighting Wasco For interior spaces without access to natural light, there is the Parans Solar Lighting system. Solar receivers mounted on the exterior of a structure channel solar energy along thin, flexible fiber optic cables that can be wound through a building’s infrastructure. The light is expelled through specially designed luminaires that deliver all the illumination benefits of natural sunlight, without electricity. Quantum Total Light Management Lutron A single system and software umbrella regulates lighting controls, motorized window shades, digital ballasts, LED drivers, and sensors. An enhancement for solar adaptation—for abundant sunshine, cloudy weather, or shadowed windows—automatically adjusts shades to meet prevailing conditions. A monitoring system also sends email alerts in the instance of alarming events or triggers that can be addressed with an iPad application, available for download at the App Store. Solar PV Canopy System Duo-Gard A turn-key approach to photo-voltaic architectural canopies: Solar energy is harvested for charging and lighting energy, or configured for energy credits. A steel frame, fabricated in-house, features a three-coat polyurethane epoxy finish for durability. The continuous canopy can be specified in Charcoal Gray or Blue, and in a sloped or ridged style.