Energy

Researchers Turn Solar Energy into Electrical Power Using Photo-Bioelectrochemical Cells

A new paradigm for the development of photo-bioelectrochemical cells has been reported by researchers from The Hebrew University of Jerusalem, in Israel, and the University of Bochum, in Germany. The design of photo-bioelectrochemical cells based on native photosynthetic reaction is attracting substantial recent interest as a means for the conversion of solar light energy into electrical power.

Posted in: Articles, News, Energy, Solar Power

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Onion-Like Layers Help New Nanoparticle Glow

A new, onion-like nanoparticle could open new frontiers in bioimaging, solar energy harvesting and light-based security techniques.

Posted in: Articles, News, Energy, Solar Power, Imaging

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Solar-Powered Water Purification System Supports Remote Village

For nearly two years, residents of the remote Mexican village of La Mancalona, most of whom are subsistence farmers, have operated and maintained a solar-powered water purification system engineered by researchers at the Massachusetts Institute of Technology (MIT).

Posted in: News, Solar Power

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New Solar Energy Storage Technique Could Boost Solar Cell Usage

Researchers at Missouri University of Science and Technology have developed a relatively inexpensive and simple way to split water into hydrogen and oxygen through a new electrodeposition method. The method produces highly efficient solar cells that can gather solar energy for use as fuel. The research, sponsored by the U.S. Department of Energy, could lead to a sizable increase in the amount of hydrogen available for fuel usage.A working cell from Switzer’s research, with gas evolution. (Photo: Sam O’Keefe, Missouri S&T)

Posted in: Articles, News, Energy Storage, Solar Power

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Self-Powered Intelligent Keyboard Could Provide Additional Security

By analyzing such parameters as the force applied by key presses and the time interval between them, a new self-powered, non-mechanical, intelligent keyboard could provide a stronger layer of security for computer users. The self-powered device generates electricity when a user’s fingertips contact the multi-layer plastic materials that make up the device.

Posted in: News, Board-Level Electronics, Computers, Electronic Components, Electronics, Electronics & Computers, Power Management, Energy, Energy Harvesting, Semiconductors & ICs

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Public Lighting System Runs on Solar and Wind Energy

A researcher at the Barcelona College of Industrial Engineering, in collaboration with the company Eolgreen, has developed the first autonomous industrialized public lighting system that works with solar and wind energy. This system, developed after four years of research, is designed for inter-urban roads, motorways, urban parks, and other public areas. It is unique in the world, and reduces the cost by 20% compared with conventional public lighting systems. The prototype is 10 meters high and is fitted with a solar panel, a wind turbine, and a battery. The turbine runs at a speed of 10 to 200 rpm and has a maximum output of 400 watts. Work is being done on a second prototype generator that runs at a lower speed (10 to 60 rpm) and has a lower output (100 W). An electronic control system manages the flow of energy among the solar panel, the wind turbine, the battery, and the light. Source:

Posted in: News, Batteries, Electronics & Computers, Energy, Renewable Energy, Solar Power, Wind Power, Lighting

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Zinc Oxide Materials Power Tiny Energy Harvesting Devices

Many types of smart devices are readily available and convenient to use. The goal now is to make wearable electronics that are flexible, sustainable, and powered by ambient renewable energy. This last goal inspired researchers to explore how the attractive physical features of zinc oxide (ZnO) materials could be used to tap into abundant mechanical energy sources to power micro devices. They discovered that inserting aluminum nitride insulating layers into ZnO-based energy harvesting devices led to a significant improvement of the devices’ performance. The group’s findings are expected to provide an effective approach for realizing “nanogenerators” for self-powered electronic systems such as portable communication devices, healthcare monitoring devices, environmental monitoring devices, and implantable medical devices. Source:

Posted in: News, Electronic Components, Electronics & Computers, Energy, Energy Harvesting, Renewable Energy, Materials, Metals, Nanotechnology, Semiconductors & ICs

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