What is Renewable, Alternative Energy?
Fossil fuels are used to make energy we use, but once they are gone we will
never get more of them. Coal, oil, and natural gas all fall into this category. They
are used all over the place in high amounts so you may not realize that they are
in limited supply.
These forms of energy have been used mainly because they are affordable and
they don’t take up very much room to incorporate. They can be transported
anywhere they are needed as well. With natural resources there have to be
certain elements in place in order to take advantage of them.
The concept of renewable energy embraces the ability to use the resources we
naturally have, but that we will never run out of. This way we can continue to
have all the benefits we want without destroying the Earth.
We also won’t be preventing future generations from having the chance to future
grow and evolve beyond what we were able to see take place in our own lifetime.
This process involves taking these types of natural resources and turning them
into a product we can use for power.
Chances are you have heard about the various forms of renewable energy but
not in detail.
Download our free eBook Alternative Energy and you will get all the information you need, including the pros and cons of each type. You will find each of them does offer some hope for the future though as far as reducing our dependency on those resources which we can’t replenish.
eCRP Electric Motorcycle Launches for TTXGP
A trip around the eCRP plant headquarters at Modena: The eCRP is the first of its kind of purpose-built electric superbikes, and today it is pitting against the legendary gas-powered Ducati, MV Agusta et al in the Italian TTXGP. With classic gorgeous looks and efficiently designed high performing parts, Moto2 bikes are packed with top-notch specifications. Agni 95 DC twin motors, battery packs from 7.4KWh, Marzocchi D.43 Superbike forks, CRP-built aluminum cast alloy Chassis and other features make the eCRP 1.2 a great bike. CRP has strictly adhered to the TTXGP rules and specifications in the making of eCRP
Quick Peek of the book
Alternative Energy Sources : A Brief Glimpse
Alternative Energy Source - Pros and Cons
Out of the Ordinary : Alternative Energy Sources
Alternative Energy Sources : Helping Businesses Succeed and Gain Positive Reputation
Alternative Energy Sources : Helping Out in Times of Energy Crisis
Running Unconventionally: Alternative Energy Sources for Cars
Warming Up: Alternative Energy Source and Global Warming
Alternative Energy Sources - The Best Aid in Times of Crisis
A Bright Future for Solar Energy: An Alternative Energy Source
How to Spread the Word Out about Alternative Energy Sources without Spending Too Much
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How Much Oil Has Leaked Into the Gulf of Mexico?
PV Cell Prototype Generates Electricity from IR and UV Light
April 26, 2010
Solar energy is present in abundance around us. The problem is how to harness a substantial portion of it for human use. How to raise the efficiency bar of solar conversion into electricity? Scientists are continuously engaged in finding a way out for this problem. Recently scientists at the Kyoto Institute of Technology have deviated from the normal path and tried to trap the visible as well as invisible rays of sun for electricity. They tried to create a new photovoltaic cell that can capture visible, infrared and ultraviolet light of the sun. The team now thinks that this photovoltaic will be highly efficient for solar power conversion.
In March, 2010 a meeting was held by the Japan Society of Applied Physics. In this meeting a research group from the Kyoto Institute of Technology talked about their new photovoltaic cell that is capable of generating electricity not only from visible light, but from ultraviolet and infrared light as well. The research group is headed by the associate professor Saki Sonoda. The research group delivered a 90-minute lecture on the cell under the title “Nitride Semiconductor Added With Transition Metals as a Photoelectric Conversion Material for Ultraviolet, Visible and Infrared Lights ~ In the Aim of Realizing the Next-generation Super-efficient PV Cell With a Simple Element Structure.”
Saki Sonoda is quite optimistic that his team’s work would lead towards a more efficient PV cell that can be single-junction rather than the more conventional multi-junction. A multi-junction PV cell has multiple thin films of varying absorption capabilities. This will help in capturing the entire spectrum of light. But with a single-junction cell all that light can be absorbed using a single junction cell.
These new PV cells were made up of gallium nitride (GaN) semiconductor. This new photovoltaic cell is created by ‘doping’ a wide bandgap transparent composite semiconductor i.e. gallium nitride (GaN) with a 3d transition metal such as manganese. Gallium belongs to the family of scandium, titanium, vanadium, chrome, iron, cobalt, nickel, copper, and zinc. Sonoda explained that his team has gone for those additive elements. He said that even aluminum nitride (AlN), which has a very large bandgap, can possibly have an absorbing region in the visible light range,
If we look at the stats we can see that the short-circuit current density of the PV cell is about 10?A/cm2, which is about 1/1,000 that of a normal crystalline silicon PV cell. Sonoda explained that normally the cell and electrodes are separated, therefore the electric resistance of the p-type GaN connecting them is very large. Now we can hope that the findings of the research group are expected to pave the way to a GaN-based PV cell with a totally different mechanism.
