Friday, February 12, 2016

High Capacity Wind Farms

First off, this is a subject my brothers, or son, should be doing because of their expertise in the field of electricity, I know so little about power generating...but here goes.
The Coachella Valley wind farm was the first in the United States back in the 1980's. The valley at one time had a capacity of 4500 units, there are now only 3200 units, providing much more power, with less of the harmful effects to our environment. 



These bigger 1 megawatt wind generators have each replaced 17 of the smaller and older 60 kilowatt turbine.



Nordex, is a German turbine manufacturing company that seems to be at the forefront of wind generators. They are building some of the biggest wind generators. This 1 MW turbine will supply all the electrical needs to over 700 homes.



While in Holland and Germany this summer, we saw many of these much larger wind turbines. They make 3.3 MW turbines and research shows they are working on a much larger 4.5 MW turbine, which will displace many of the smaller generators and reduce significantly, the harmful effects on the environment, such as bird kills.



Imagine just one mega watt producer that would, in effect, remove 30 or 40 of these smaller units?



This last week and a half, while going to Costco, I pass a field of 8...fairly big 1 MW units...and watched while they took apart the blades and then bring the "command center" (for lack of a better word) down for what I suspect is maintenance. It's easy to see the blade size by looking at the comparison of the trucks parked alongside. 



I had noticed in other turbine fields that there always seems to be a small radio tower (to the left) nearby. This tower is much too small to be an actual "radio" tower, but I surmise that it is a way of communicating to the turbines as in, which way to face or how much feathering of the blades is needed for optimum performance.
Green energy is welcomed in our world, but as a rebuttal, you really need to hear from the folks in Ontario, Canada who are none too happy with wind generators called, Down Wind.


I got this wonderful video from Donna's cousin, Shareon, on how wind generators are constructed from day one.

https://www.youtube.com/embed/84BeVq2Jm88?feature=player_detailpage




1 comment:

Anonymous said...

Pretty cool, the command cell, i think is called the Nacel, the one they lower down, might be due to bad generator or gear box. Most routine maintenance is done without taking it apart. Joe