IMPACT OF RENEWABLE(DISTRIBUTED GENERATION) ENERGY IN POWER QUALITY IMPROVEMENT

       Long transmission is one of the main cause for electrical power loss. Even a high school kid may know this fact these days. But the power quality problem is not only due to these losses. Approximately 70 to 80% of all power quality problem can be attributed to faulty connections or wiring(a research says not me). Also some other things like harmonics, transients, electromagnetic interference and LPF(low power factor)also damage power quality but they all share the remaining 20-30% only. So we will worry about them later.

DISTRIBUTED GENERATING STATION

      Okay then, now how we are going to take care of the power quality problems due to long transmission power losses. Are we going to "lay superconductors instead of aluminium alloys and copper conductors?" or "increasing voltage level to extreme levels and implementing HVDC?". These things may happen(exclude that superconductor idea please), but with very large investment. This remedy measures also will look reasonable when we implement them for new long power transmission projects. Then what about the older lines staying out there wasting not only the power but also our money(for losses too we are paying the electricity boards).

       To resolve this problem we got to ask the help of renewable energy. The solar, wind, wave and some other power plants scattered all over a country can not only help us to meet the growing demands with depleting fossil fuels. They were like a bonus to us in resolving power quality problems. The irritating incidents like switching off of T.V's while watching a football game and shutting down of A.C in a hot day due to low voltage problems and faulty lines may end now. Integrating these scattered power houses(Distributed Generation) with the existing system surely can deliver us a good quality power. If a feeder from centralized generating station to your area encountered fault, don't worry you will still get power from a near by distributed generating station. For that we need to install solar, wind or whatever that suits to your geographic location.

But we got to be too careful while designing these integration of centralized system with distributed power generating system. Improper designing in power electronic devices may inject harmonics into the system which will further destroy the power quality instead of making it up.

DISTRIBUTED GENERATING STATION IMAGE SOURCE - http://www.performanceenergy.com

PAPER PP ALLOYS CAN SAVE THE COMPUTER INDUSTRY FROM PLASTICS

           The plastics that always sticking with the consumer electronics is now going to get replaced by a new material. PEGA Design and Engineering found a new material to make the computers, laptops and other consumer electronic devices an environmental friendly one. Currently we are in the trouble of disposing the electronic wastage's. The main reason for that is the plastics which are cheap and strong always partnering with electronics.

          The PEGA D&E got this new material called Paper PP Alloy which has all the advantages that the plastic materials having with an extra qualification of environmental friendly(biodegradable, reusable and recyclable). This Paper PP Alloy has the characteristics of paper which makes it biodegradable. It is only made up of paper and polypropylene.

Laptop Shell made from Paper PP Alloy

                                    

                                      Bio Degradable Material

            The materials needed to make Paper PP Alloy are easy to retrieve drawn the attention of consumer electronics manufactures towards this material. An even more exciting feature is Paper PP Alloy can be molded using injection molding method; it can be easily adapted without changing the manufacturing process.

Dan Nocera: Personalized Energy

DENMARK'S FLAG IS GOING TO FLY HIGH BY WIND POWER - a revolution

          Denmark set itself as a role model for the whole world on implementing renewable energy and reducing carbon emission. when we go through what Denmark actually did, they found the correct resource which is available in plenty in their country and utilized them properly. Currently Denmark's generation capacity from wind power is around 25-30%. Germany is way ahead in wind power generation by installing wind turbines every day. England and U.S(which planned to get 30% of total demand from wind) are also heading towards mass production of electricity from wind power.

WIND TURBINE

          Although Denmark is not at the top of wind power generation countries list, they were setting an example to other countries by planning to produce 50% of their total demand from wind power. If they do so they will be the first country to become highly eco friendly. They were also working on making peoples to use electric cars and to further reduce the carbon emission. An island in Denmark called Samso have enough wind turbines to supply the whole island with 10% surplus in hand. The achievement in this island is that every turbine is owned by the local peoples in that island.

LARGE NUMBER OF TURBINES INSTALLED
TO FORM WIND FARM

          I'm not really flattered just because of the Denmark's plan of "50% from Wind". I really amazed by the Denmark's electricity export ability. Although Denmark is a small country, it is holding one third of the world wind power industry.  I also feel proud to be an Electrical Engineer. The reason is that you can't send the wind power to neighboring countries just because you got plenty of them, but you can send any energy to any area by changing them into "Electricity". While living in a country where there is a plenty of "Electricity Scarcity" with 3-5 hours power cut a day(now there is no current in my town, thank god i got my laptop), Denmark really looks like a role model in utilizing the resources we have without disturbing our eco system. I believe that Denmark's wind power will never let their flag down.