ExpoSolar, which takes place Oct. 31- Nov. 1 in downtown San José Costa Rica, will be the first event of its kind in Central America to focus only on solar power. It is organized by the Costa Rican Solar Energy Association (Asociacion Costarricense de Energía Solar, or ACESOLAR). During the event a wide variety of firms will present their products, including systems for heating water and photovoltaic systems for generating electricity.
EXPO SOLAR in Costa Rica – October 31-November 1, 2014.
Costa Rica is perhaps one of the most technologically advanced nations in Latin America.
Currently 50 companies are involved in the solar energy business in Costa Rica. They offer services in a number of areas, including consulting, construction, design, installation and distribution, among others.
TEC students, who recently won the prestigious prize for “Favorite House” with their “Casa Tropika” at the Solar Decathlon Europe competition this year in France, also will be present. This was an impressive win not just for the 35 students who put the project together, but also for the country, which beat out submissions from all over the world. The winning Costa Rican entry is a single-family, intelligent house for senior citizens that not only feeds the dog, but also automatically dispenses medications to residents, and of course, is completely solar.
In the last couple of weeks, the roof of the building at Lincoln Center that houses the Juilliard School and the School of American Ballet was converted into a construction site.
The 36 solar panels atop the Rose Building in Manhattan should yield more than 11,000 kilowatt-hours per year, enough to light the building’s lobby for that time. Credit – Ángel Franco/The New York Times.
More than 900 square feet of what had been empty space are now covered by solar panels that will convert sunlight to electrical current.
Lincoln Center officials say the 36 solar panels — on the roof of the Rose Building, on West 65th Street between Broadway and Amsterdam Avenue — symbolize another step in their operation to go green. They announced a deal in 2012 to supply electricity generated by wind power equal to most of the buildings at Lincoln Center and the central plant that heats and cools them. (No, there are no wind turbines whirling above Lincoln Center; it buys power from a company that supplies wind-generated electricity to the conventional commercial power grid.)
The solar array was arranged through the same company behind the wind-power contract, Green Mountain Energy, and was paid for with federal and state grants. A $100,000 donation also came from Sun Club, a program run by Green Mountain that donates solar power to nonprofit groups.
Lincoln Center will still draw electricity from Consolidated Edison, but it will pay Green Mountain, which will channel electricity from the solar array to the conventional commercial power grid. Green Mountain will make up the difference if the panels fall short of the 11,331 kilowatt-hours a year that they are expected to yield.
Steve DeStefano, Lincoln Center’s director of engineering, said that was enough to light the lobby of the Rose Building for a year, or to run the washers and dryers in the student dorms on the 11th floor for four months. He said the panels had been placed to receive the most sunlight possible — 800 to 1,000 more kilowatt-hours a year than if they had been installed elsewhere on the roof.
Elon Musk’s company is now offering loans to their clients to own their solar panels for cheaper lease rates.
This loan, offered by Solar City, is called MyPower. It is paid back by the customer by paying for the energy produced by their equipment. And after 30 years, the power is free.
Here’s how it works…. according to Solar City founder and CEO Lyndon Rive, customers take out a 30-year loan on a solar power system at 4.5% interest. Solar City installs and maintains the solar system at no cost to the customer and the customer pays for the power — and in the process, eventually pays off the loan.
Typically loans available for homeowners to fit themselves with solar utilities are usually offered by third-party banks and municipalities in partnership with solar companies, and do not take into account how much power is being produced by the system. That means if the system under-performs, the customer loses money.
Instead, with Solar City’s direct financing, “you only pay based on the production of the system,” which Solar City will monitor and guarantee against drops in performance, Rive says.
One potential drawback to the MyPower program is that solar power will develop significantly over the years, both reducing in cost and rising in effectiveness.
Researchers in The Ohio State University have created a “solar battery” by combining the energy-harvesting panel with the energy-storing medium at a microscopic level.
The device could change the way solar power is used. In the October 3, 2014 issue of the journal Nature Communications, the researchers report that they’ve succeeded in combining a battery and a solar cell into one hybrid device. Ohio State’s Yiying Wu, professor of chemistry and biochemistry, led the team that made the breakthrough, which was reported this week in Nature Communications.
Key to the innovation is a mesh solar panel, which allows air to enter the battery, and a special process for transferring electrons between the solar panel and the battery electrode. Inside the device, light and oxygen enable different parts of the chemical reactions that charge the battery. The panel, like any other solar cell, produces electrons when struck by sunlight. But then, instead of having those electrons piped to a separate battery unit and leaking as much as 20 percent of them in the process, they built the battery right into the panel. The solar-sensitive part is porous, and gives access to a battery layer that attaches and detaches oxygen from lithium ions to store energy.
“Basically, it’s a breathing battery,” Wu explained in a news release. And, strangely enough, the panel is tuned to a certain wavelength of reddish light by using iron oxide as a dust — also known as rust.
“The state of the art is to use a solar panel to capture the light, and then use a cheap battery to store the energy,” Wu said. “We’ve integrated both functions into one device. Any time you can do that, you reduce cost.”
He and his students believe that their device brings down costs by 25 percent. Combining the production and storage of solar power could indeed reduce costs and make solar-powered devices compact.
The invention also solves a longstanding problem in solar energy efficiency, by eliminating the loss of electricity that normally occurs when electrons have to travel between a solar cell and an external battery. Typically, only 80 percent of electrons emerging from a solar cell make it into a battery.
With this new design, light is converted to electrons inside the battery, so nearly 100 percent of the electrons are saved.
The design won the $100,000 clean energy prize from the U.S. Department of Energy in 2014, and the researchers formed a technology spinoff called KAir Energy Systems, LLC to develop it.
Scanning electron microscope image shows nanometer-sized rods of titanium dioxide (larger image) which cover the surface of a piece of titanium gauze (inset). The holes in the gauze are approximately 200 micrometers across, allowing air to enter the battery while the rods gather light. Image courtesy of Yiying Wu, The Ohio State University.
“If you wanted to generate all the world’s electricity, you could do it with less than 1% of the area of the world’s desert.” Gerry Wolff, Coordinator of Desertec, says. But if Wolff is correct, why hasn’t it been done yet?
Seville, Spain hosts the first commercial operation of solar tower technology in the world. It’s the first commercial solar tower plant of its type, concentrating solar power (CSP), in the world. According to the report, it features over 1,000 freestanding heliostat mirrors that follow the arc of the sun. In a process referred to as Concentrated Solar Power (CSP), the mirrors reflect solar rays to the tower, where water is boiled, and then steam is generated to drive a turbine, which in turn produces electricity. This electricity is sold to the national grid.
This is all possible because Spain’s government has provided subsidies and incentives in support for the solar industry. Without government support, it’s possible that the entire operation could not exist. That is because the upfront investment is huge, as most of the money goes into building the plant. The investor community tends to see solar plants as high risk.
But according to the video report, once economies of scale are achieved, solar power is one of the cheapest sources of energy. The report argues that it’s hard to detect the value of solar power because currently, conventional sources of electricity are subsidized, artificially making them appear to be cheap. GOOD reports that “concentrated solar power… will be a core element of the transition from dirty coal to clean energy.”
As Gus Schellekens of PricewaterhouseCoopers argues, “Solar has a huge role it can play, the fact that it’s an endless supply of energy…the one thing that’s needed to unlock much of that is the political leadership and will.”
WATCH video about this innovative solar power tower below:
VIDEO of James May (Top gear) visiting solar thermal plant in Spain:
Juicebar Pocket Solar Charger.
This stylish, sleek and reliable pocket size Universal Battery Charger (Juicebar Solar Charger) is proven to be your best friend in a situation when conventional electric supply is not available or if you are trying to use eco-friendly renewable power supplies.
Great as a solar phone charger for any type of Mobile Phones, IPhones, PSA, PDA, Mp3 Players, Satellite Navigation, and much more.
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SOLAR PATH LIGHTS.
Stainless Steel Conical Solar Path Light (Set of 2).
Path solar lights are an excellent choice for lighting your garden paths, walkways, driveway perimeters and other regions in your landscape. They are often used in multiples to guide the way along a set of stairs or a dark walk.
Featured Stainless Steel Solar Light set uses 2 ultra-bright LEDs for maximum light output and minimum battery usage.
The lights are safe around kids and pets and water and corrosion resistant.
Read more HERE
STONE SOLAR SPOT LIGHTS.
Stone Solar Spot Lights (also known as Solar Rock Lights) completely camouflage with existing landscapes and look like any other rock in your garden.
SOLAR GARDEN FOUNTAINS.
How to start using ecologically friendly energy to power up your garden fountains and other garden water features?
Why not go with a solar powered water pump?
To accommodate your needs the Solar Fountain Pump Systems we carry range from 2 to 8 Watt. Browse our collection of solar water pumps for your fish ponds and solar fountains.
Enjoy your garden water features and your energy savings at the same time. Make a note of the various power levels and the flow rate of the solar water pumps before your purchase.
Please write us your review after your purchase. Your opinion is important to us!
DECORATIVE SOLAR ACCENT LIGHTS.
Solar accent lights (Set of 2) create an enjoyable and inviting glow for your landscape.
They are designed to mark a place.
Solar Spot Light - $26.99
Super High Output Spot Light (4 Super Bright LEDs). Free Shipping!
Solar spot lights like this one rely on energy from the sun to charge their batteries and provide light throughout the night.
This means that there is no need to tap into the electrical grid for these lights to operate.
The solar spot lights will work consistently, even if the whole neighborhood is dealing with a power outage.
Learn more about Solar Spot Lights at http://www.yoursolarlink.com/solar-spot-lights, where we have a great selection of solar spot lights to choose from.
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