In a quest for a smaller, more self-sustaining solar power source, a UW-Madison electrical engineer has proposed a design for solar panels that can simultaneously generate power from sunlight and store power reserves for later, all within a single device. Hongrui Jiang and his students developed the idea, published in the journal Advanced Materials June 6. Jiang is the Vilas Distinguished Achievement Professor of electrical and computer engineering at UW-Madison and specializes in microscale devices. He and his students developed the technology as an offshoot of a National Institutes of Health grant to design a self-focusing contact lens that adapts to the eyes of adults suffering from presbyopia, a natural aging process that stiffens the lens and reduces the eye's ability to focus, especially at short distances. To power that contact lens, Jiang and his team have worked out a design that balances energy harvesting, storage and usage. "We needed a multi-functional and small-form-factor device in order to integrate it all into a single contact lens structure," says Jiang. The top layer of each photovoltaic cell is a conventional photo electrode, converting sunlight into electrons. During that conversion process, the electrons split off into two directions: most electrons flow out of the device to support a power load, while some are directed to a polyvinylidene fluoride polymer (PVDF) coated on zinc oxide nanowires. The PVDF has the high dielectric constant required to serve as an energy storage solution. "When there's no sunlight, the stored power will come back through the nano wires to power the load."
Canada is one of the top-five countries that will be considered for mergers and acquisitions in renewable energies over the next 18 months.
This month, Solar Energy World is hosting a free workshop for homeowners at their Maryland headquarters in Elkridge. Homeowners will learn about solar power, how it can be incorporated in their homes, and what the costs and incentives are for going solar. RSVP is required for free admission.
Rigorous testing and maintenance strategies for modules key to ensuring long-term yield for PV plant owners and developers in Chile.
Baker Electric Solar is pleased to announce it has completed a seventh Cal State San Marcos Senior Experience Project sponsored by the Baker Electric companies. The video project was formally released on May 16 at the Senior Experience Tradeshow.
Charleston, S.C.-based safe water nonprofit recognized for sustainable solar-powered safe water solution in Malawi.
The share of renewable energy in Canada continues to decline as a percentage of total energy consumption, in sharp contrast to the growth rates in most developed nations.
TRA Snow and Sun, manufacturer of engineered snow retention and solar mounting systems, has hired Jake Owsley as an Inside Sales Representative. ‘Owsley' contributes extensive construction experience to the TRA Snow and Sun customer service team.
‘The Biggest Little City in the World' is a Center for Geothermal Excellence
Intersolar in Munich from June,19 to 21
Electricity prices are increasing, and so is the demand for storage systems: This year, 170 exhibitors in the product group energy storage have registered at Intersolar Europe. Most of them will present their products from 19th to 21st June in hall B5. Furthermore, in various expert's lectures and panel discussions, topics such as self consumption and storage solutions for residential or industrial buildings will be discussed.
meeco supplies 15.68 kWp of remote solar water-pumping in Pitiantuta, Chaco
COPENHAGEN: SCIENTIFIC RESEARCH, MARKET AND POLITICS UNITE FOR EUROPE'S LARGEST GATHERING OF BIOMASS EXPERTS
The political opening of the conference provided a clear reminder of Europe's target of reaching 20% renewable energy by 2020 and the need to achieve this target in an environmentally sustained way.
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Solar & Wind - Featured Product
The Darfon G320 is the microinverter solution for today's high-power solar modules. The G320 handles 60- and 72-cell modules up to 350W DC and outputs up to 300W AC. The G320's 3-phase configuration accommodates the electrical distribution systems of most commercial buildings and to reduce, if not eliminate, the need for expensive transformers. The G320 comes in four voltage/phase configurations, so it can be installed in residential, commercial or utility applications.