Distributed Generation Technologies – Applications and Challenges

The practice of installing and operating electric generating equipment at or near the site of where the power is used is known as “distributed generation” (DG). Distributed generation provides electricity to customers on-site or supports a distribution network, connecting to the grid at distribution level voltages.

The traditional model of electricity generation in the United States, which may be referred to as “central” generation, consists of building and operating large power plants, transmitting the power over distances and then having it delivered through local utility distribution systems.

The practice of installing and operating electric generating equipment at or near the site of where the power is used is known as “distributed generation” (DG). Distributed generation provides electricity to customers on-site or supports a distribution network, connecting to the grid at distribution level voltages. DG technologies include engines, small (and micro) turbines, fuel cells, and photovoltaic systems.

Distributed generation may provide some or all of customers’ electricity needs. Customers can use DG to reduce demand charges imposed by their electric utility or to provide premium power or reduce environmental emissions. DG can also be used by electric utilities to enhance their distribution systems. Many other applications for DG solutions exist.

With existing technology, every industrial or commercial facility including factories, campuses, hospitals, hotels, department stores, malls, airports, and apartment buildings can generate enough electricity to meet its power needs under normal conditions, as well as have back-up power during a blackout.

Distributed generation systems can provide an organization with the following benefits:

* Peak Shaving;

* On-site backup poer during a voluntary interruption;

* Primary power with backup power provided by another supplier;

* Combined load heat and power for your own use;

* Load following for improved power quality or lower prices;

* To satisfy your preference for renewable energy

In conjunction with combined heat and power (CHP) applications, DG can improve overall thermal efficiency. On a stand-alone basis, DG is often used as back-up power to enhance reliability or as a means of deferring investment in transmission and distribution networks, avoiding network charges, reducing line losses, deferring construction of large generation facilities, displacing expensive grid-supplied power, providing alternative sources of supply in markets, and providing environmental benefits.

Power generation technologies have evolved significantly in the past decade, making DG much more efficient, clean, and economically viable.

Substantial efforts are being made to develop environmentally sound and cost-competitive small-scale electric generation that can be installed at or near points of use in ways that enhance the reliability of local distribution systems or avoid more expensive system additions. Examples of these distributed resources include fuel cells, efficient small gas turbines, and photovoltaic arrays.

This report on Distributed Generation Technologies takes an in-depth look at the industry and analyzes the various technologies that contribute to distributed generation in today’s age. The report focuses on these technologies through case studies, examples, and equations and formulas. The report also contains analysis of the leading countries actively promoting distributed generation.

Semiconductor Technology – Applications and Operations Behind Different Types

Semiconductors will not function if they do not possess electrical conductivity. The system takes place in the conductor’s connection with the insulator. This is perhaps the most basic among a list of assumptions behind semiconductor technology. But since this is very basic, there are yet other principles to take note of. In this regard, it pays to take a glimpse of the semiconductor types that are significant in some enterprises.

Semiconductors are very essential in technological advancements especially in mobile phone, computer, television and radio production. They are also highly crucial in production of transistors. In understanding more about semiconductor technology, it pays to take a look at its four types.

First kind of semiconductor – intrinsic

An intrinsic semiconductor is sometimes known as the purest of all semiconductor types. It contains thermal materials that have the ability of lessening covalent bonds as they freed electrons. Part of its work is to go to a solid mass for the support of electric component conductivity. In situations where the covalent bonds lose their electrons, electrical properties of the semiconductor will get affected.

Second kind of semiconductor – extrinsic

Aside from the intrinsic semiconductor there is also the extrinsic semiconductor. When compared to the intrinsic version, the semiconductor technology for extrinsic semiconductors rely upon doped or added particles. With this fact, it is also known as a doped semiconductor. The additional particles play a vital role in transforming the conductivity characteristics of the electrical component.

Here is one concrete sample for extrinsic semiconductors. Silicon, the most usual semiconductor, may be used in order to come up with a gadget. Each atom of silicon allocates four categories of valence electrons through a process known as covalent bonding. If silicon will be substituted by five valence electrons of phosphorous, four of the covalence electrons will be put together while the remaining one will be free.

Categories of extrinsic semiconductors – N-type and the P-type

Wrapping up the four classifications of semiconductors are the two sub-classes for extrinsic semiconductors. One is tagged as the N-type whereas the other is the P-type. The N-type is comprised of electrons and holes. The former plays as majority carriers while the second plays as minority carriers. This signifies that the electron’s concentrations are more than that of the holes.

As for the P-type semiconductor, it acts opposite functions with that of the N-type. To explain further, the P-type semiconductor technology contains holes that play as majority carriers while the electrons become minority role players. In some instances though, there are systems that follow a P-N Junction. This takes place when a P-type semiconductor is found at one side of the system even if the N-type was already made in the other side.

Android Developers – Developing a Cutting-Edge Android OS and Applications

Are you aware of the latest mobile phone developments? Technology evolves tremendously and you should chase every progress of it in order not to be left behind. The trend of technology innovations is moving too fast. That is why some people cannot be able to catch up with the latest updates about the best and newest products of technology. Whether we like it or not, we cannot stop or control the rapid pace of every development in technological applications and products. Today, we are living in the modern era and we need to embrace and adapt what technology has brought for us. The fastest development of technology is found in the advancement of mobile phones. Every year or even every 3 months, there are new models of phones released in the market. Currently, the latest mobile phones are smart phones and android phones. Smart phones and android developers are both determined to develop more enhancements most especially in the operating systems and software applications. However, android phones have more features and a stronger platform foundation. These are the factors that make the android phones turn out to be better than smart phones.

Android developers have developed an extensive and a cutting-edge application development. The objective of the development for the android operating system and applications is to provide users with a handy operational phone. There are so many dynamic features that can be used freely by the android users. Like the application framework that enables you to customise, change and reuse its components. The open development platform of android phones is providing the users with rich useful features. It is built with an open source operating system that is why you can possibly download or install any android or other apps because it can be recognised by the android’s OS and platform. The richness with the innovative applications in the android phones is worth the price. Most people prefer to buy mobile phones that can access almost all applications. Android phones are the most reliable mobile phone that can provide users’ demand. In fact, other phone manufacturers want to take advantage of android’s rapid and astounding development. Their objective is to make a good partnership with the android manufacturer because they know that they can’t compete with it in the market. Android phones’ acquisition creates remarkable impressions to the consumers and phone marketers as well.

Software application developers successfully provided solution to the compatibility issues to other mobile phones and in synchronizing apps mainly in gaming. There are three android operating systems that have been created magnificently by the professional developers. These are the Froyo, Gingerbread and ICS (Ice Cream Sandwich). These improve the interface of android phones to make it more advanced.