Short-Circuit Current
The short-circuit current is the current through the solar cell when the voltage across the solar cell is zero (i.e., when the solar cell is short circuited). Usually written as ISC, the short-circuit current is shown on the IV curve below.
IV curve of a solar cell showing the short-circuit current.
Hawaii’s New Feed-In
Tom Garven said:
This posting is in response to Mr. Styles who said in part: “The problem with all of these approaches [is] who pays. … including many who can’t …take advantage of these schemes.
What Mr. Styles says is true. In many cases only those individuals who can afford the upfront cost of installing solar PV can take advantage of most utility/state programs.
Solar panels invented in N.J. 55 years ago
It is well-known that New Jersey has covered more rooftops and open spaces with solar panels than any state in the nation, except California.
Less well-known is that solar panels were invented in the Garden State 55 years ago Monday.
Bell Laboratories’ scientists Gerald Pearson, Calvin Fuller and Daryl Chapin designed the first practical photovoltaic cell in the mid-’50s in Murray Hill. The successful first trial of their solar panel, made up of razor blade-sized strips of silicon, was on Oct, 4, 1955, at a telephone carrier in Georgia. Bell Labs went on to supply solar electric power for NASA’s first permanent satellite in 1958.
Going Green with Renewable Energy Products
In 2002, I decided to renovate our 25 year old, Fafco Solar building in Cape Coral…
A photo of our building back in late 70′s!
Arizona Pushes for Affordable Solar Energy in Schools
As the Solar Schools Act makes its way through Congress, school districts in the Valley of the Sun are installing solar panels to save money and take advantage of natural resources.
In the Deer Valley Unified School District, choosing solar energy was a no-brainer for board member Christy Agosta.
“We’re in Phoenix, Arizona,” Agosta said. “I mean, really, we have so much sunshine.”
Cut costs
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Solar Energy For Kids Projects
What are renewable energy sources?
a group of kids at my school (including me) want to make our school carbon neutral for the project we want to put solar panels and wind turbines (not great) at our school, what other sources of renewable energy? Thanks in advance
And geothermal
Georgia – Energy tax credit, solar rebates and incentives Georgia residential solar energy incentives Clean energy tax credit
The clean energy tax credit gives Georgia residents a 35% credit towards the total cost of installation and equipment.
- The credit listings are as follows:
- $2,000 credit limit for geothermal heat pumps
- $2,500 credit limit for domestic solar water heating
- $10,500 credit limit for photovoltaic and wind energy systems.
In order to claim this credit, homeowners must make sure that all equipment and installation has met certification standards.
Georgia Power – Solar buy back program
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Renewable Energy Jobs – Engineer / Technology Job Opportunities
Energy Services
JBI Energy is a renewable energy industry-specific employment division of Job Brokers Inc. located in sunny Tempe, Arizona.
We started JBI Energy with one mission in mind, to take the recruiting experience and processes we created at Job Brokers and focus them on jobs in alternative energy as well as other selected utilities.
The Hidden Cost of Electric Vehicles Environmental Management & Energy News Environmental Leader
Although electric vehicles show higher non-climate damages than many other technologies, they will not be significantly cleaner than cars powered by fossil fuels until they rely less on electricity produced from coal-fired power plants, according to new research from the National Research Council, reports Reuters. Despite the finding, Japanese automaker Honda is considering a move into the electric vehicle market in the U.S., Europe and Japan.
Jared Cohon, the chair of the National Research Council report told Reuters that the power fuel mix has to move away from coal, or clean coal technologies must be developed for electric vehicles to become a major green alternative.
According to the study, Hidden Costs of Energy: Unpriced Consequences of Energy Production and Use, about half of U.S. power is generated by coal-fired power plants, which emits more of traditional pollutants, such as particulates and smog components, than natural gas, and about twice as much of the main greenhouse gas carbon dioxide, reports Reuters.
Solar Heating and Hot Water Systems
Solar Hot Water Heating Systems
If your looking for high quality Solar Water Heating then the Shueco Compact and Premium packages provide all you need to produce hot water heated by solar power. The systems are designed for quality and longevity, to guarantee you free heat for many years ahead, thereby saving you approximately 60% of the energy normally required for hot water.
Complete Systems – Supply Only Prices – Available to meet all requirements. The Shuco Compact System at a glance.
The compact line of solar thermal systems is the ideal proven entry level system that features impressive state-of-the-art technology and offers a quick and easy to install range of flat-roof, roof-mounted or integrated roof installations. These solar energy systems are designed for detached houses or multiple occupancy dwellings and are extremely cost effective. On average up to two-thirds of the energy required for heating water and general heating is possible. All you need is a roof!
- Collector frames and installation profiles made from high-quality, black anodised aluminium
- Hail-proof clear glass for high light permeability and security against glass breakage
- System function and yields can be easily controlled from control unit by means of temperature display and yield calculation
- Double enamelled hot water storage cylinder for maximum corrosion resistance
- Optional demand-driven hot water circulation minimises heat loss and pump use and reduces water consumption.
The Shuco Premium System at a glance
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