Wind Power

[J D Sauser]

Originally Posted by Texas Bill

JD:

Your idea of adapting a "Wind Mill" of thevariety used to pump water, as used in West Texas, isnot anew innovation. ...

I was not claiming to have invented anything... I am merely "toying" with the idea. I rather see it's been done successfully before... so I'm on the right path.

Originally Posted by Texas Bill

... Most used a generator off a tractor or abandoned truck to charge a battery bank. Had to use a "reverse current relay" to prevent overcharging. With the introduction of alternators most of those systems were converted. There are a number of "extra-heavy-duty" alternators of the150-300 amp variety available through special manufacturers( ie., any alternator shop worth it's salt will be able to build several of these for you AND incorporate an internal regulator). I would advise using one of those types with a LARGE battery bank of 12-24 deep-cycle batteries with an appropriate inverter to take care of 110 volt usages...

Thanks for all that input. I am not surprised they would use systems like that in those regions.

Originally Posted by Texas Bill

... For wiring, I'd advise you to use Marine-grade silvered and STRANDED wire that is put together like Romex, then solder EVERY SINGLE JOINiING. You'll come out ahead by doing that. Crimped joinings tend to become corroded very quickly and you soon start loosing continuity. Also seperate your circuits extensively and keep theload on a particular circuit below 15 amps. And be particularly careful with your GROUNDING. Failure to do so can prove disasterous...

You've mentioned the silvered and stranded wire before... what is it and why used that one in particular?
Also could you elaborate about grounding (will I admit I know what grounding is, but do you want to ground the 12 or 24V system, or do you mean the tower (lightning)??

Originally Posted by Texas Bill

... Hell, you know what to do, so why am I saying all this?

Just out of curiosity, who was the misguided soul who told you THAT??


Thanks! ... J-D.

[georgios]

Dc systems for boats do work due to the short lenght of wire runs. Soldering
the joints is also a great way to go. Corrosion from sea water will downgrade
any crimping or screw/clamp connection of wires.

DC systems for buildings are generally not recommended. Long wire runs tend
to cause losses. Additionally, the thick wire gauge required may offset the cost. DC wiring can get really hot, if undersized , causing fire...

For well water pumping a high voltage turbine is used in combination with
the SQflex pump from Grundfos. The turbine feeds the pump directly, no
batteries needed. The major advandage is that the turbine can be installed
at some distance from the well to utilize higher wind conditions. Usually,
the turbine is rated at 800 watts ( open voltage 150-300 VAC). The pump can be operated on AC or DC ( solar panels) or both of them combined. On average, daily water production can vary from 3000 to 5000 gallons.
These systems are well tested & documended. No reason to re-invent the wheel sort of speak.

BTW, I am the installer of the wind turbine at Cabrera. Please do not PM me.
Any comments can be posted on this thread for everyone to read.

Georgios.

[aegap]

Punta Cana-Macao energy consortium installs eolic park in Dominican East

[dv8]

GEEZ, what have you done to the colors?

[aegap]

Projects / Punta Cana - Macao Energy Consortium (CEPM)


Consorcio Energetico Punta Cana – Macao (CEPM) y Compañía de Electricidad de Bayahibe (CEB)

[aegap]

..but they have arrived:

Wind park doesn't have permission Tourism Minister Felix Jimenez says that the building of the wind park in Punta Cana-Macao is moving slowly. Jimenez says that the project is currently suspended because it doesn't fulfill all the requirements set forth by that ministry. Jimenez, speaking in Diario Libre, said that the Consorcio Energetico Punta Cana-Macao has the right to build on its property, but not within the 60 meters marine strip on property that does not belong to that company and affects the users of the beach. He said that Decree 595-06 that authorized the wind park specifies the construction would take place on property owned by the Consorcio. The wind towers would have a height equivalent to a tower of 34 floors. Jimenez says that his department opposes the project because it will alter the visual aspect of the area, as well as the height limit in tourist zones, and will increase the noise levels. On the other hand, Rolando Gonzalez Bunster, spokesman for the wind park said that the five wind towers capable for producing 9 MW have already arrived and installation would soon begin. He said the country would have savings of US$3 million in fuel and 25,000 tons of CO2. Regarding the appearance of the towers, he forecast these would become a tourist attraction. "The tourists will be pleased to see that our country is committed to develop alternative energy sources and develops policies to preserve its biodiversity," stated Gonzalez. He explained the site in Cabo Engaño was chosen after five years of studies. ___________ I've seen picture of the area, and doesn't seem to be any beach directly on that coast. Someone please correct me if I'm wrong.

[aegap]

looks like Jimenez must have gotten something wrong, ..

DR Today:

Invetors Defend Wind Park Project in Dominican East Coast

The Punta-Cana Macao Consortium (CEPM) rejected that the wind energy project it develops affect tourism and the environment, as stated by Tourism minister Felix Jimenez.
Rolando Gonzalez, CEPM president, assured that they have met all necessary prerequisites. He said that the country would save over three million dollars in fuel each year and would evade 25,000 tons of carbon dioxide emissions polluting the air.
He affirmed that Jimenez’s statements were peppered with imprecision and assured that the energy consortium conducted studies during more than five years on the wind force in the locality of Cabo Engaño, that indicate that this place satisfy ideal conditions for installing an eolic park.
Gonzales said that the Cabo Engaño park was a pilot project that is to be followed by another park that would be built in Juancho Los Cocos, with an output of 100 megawatts


Clave Digital

El proyecto, que ha contado con el respaldo del Presidente Leonel Fernández Reyna, sustenta las iniciativas de energía renovable que auspicia el expresidente norteamericano Bill Clinton y cuenta con el apoyo del equipo energético gubernamental encabezado por la CDEEE, la Comisión Nacional de Energía (CNE) y la Superintendencia de Electricidad (SIE).

Cada uno de los cinco aerogeneradores que conforman el parque utiliza la fuerza del viento para producir electricidad y tendrán una capacidad total de 9 MW. Los equipos, que serán emplazados en Cabo Engaño (La Altagracia), ya fueron descargados en el puerto de Punta Caucedo y serán instalados próximamente.

I pointed Clinton's comment about the project on this thread:



Bill Clinton commenting on old college roommate at some big event in New York City:

"...I would Like to ask my friend Rolando Gonzalez Bunster (ph) to join me up on the stage. Thirty -- oh, I have to say this -- 37 years ago we graduated from Georgetown University together.

(Applause)

And he has committed to build two wind energy power plants totaling 109 megawatts in the Dominican Republic, for a total investment of in excess of $130 million. Thank you very much.

(Applause)

This will provide electricity to people who neet it very much, while addressing global warming and promoting development in a place where I spend a lot of time and where my AIDS project is very active. So thank you, Rollando. Thank you very much.

(Applause)"

Here's more on Juancho Los Cocos per the United Nations Framework Convention on Climate Change's Clean Development Mechanism (CDM):

The Juancho – Los Cocos project proposes to install and operate a 100 MW grid-connected wind farm located between the communities of Juancho and Los Cocos, on the border between the provinces of Barahona and Pedernales in the south-west of Dominican Republic. The project developer is Consorcio Energetico Punta Cana-Macao (CEPM).

The Juancho – Los Cocos wind farm project comprises the following activities:

•Install 50 wind turbines of 2.0 MW capacity each;

• Install a control room, substation and local grid within the wind farm site;

• Build 53 km of overhead power line connecting the project to the national power grid (SENI1);

• Install an advanced monitoring and control system to monitor and control the electricity output
from the wind farm.
...
• The project will lead to the reduction of green house gas emissions compared to a business as
usual approach by an estimated 321,433 tCO2 per year;

• The project will serve as the first example of large-scale, grid-connected wind energy capacity
in the Dominican Republic, generate around 368.4 GWh of green electricity per year;

• The project will contribute to promoting and developing the renewable energy sector in the Dominican Republic;

• The project will assist with applying new legislation aimed at stimulating the small to medium scale renewable projects in the country – The Renewable Energy Act (draft)2;

http://www.netinform.net/KE/files/pd...os_PDD_GSP.pdf

[aegap]

(Site 1 = Cabo Engano; Site 4 = Juanchos-Los Cocos)

[Keith R]

Originally Posted by aegap

..but they have arrived:

It's hysterical hearing him complain about building within the 60-meter zone, when he has permitted upteem hotels to do exactly that...

[Keith R]

aegap, thanks for the info. I feel a Green Team blog entry coming on! Maybe we can enlighten Mr. Jimenez.