Ngong Wind Power - Kenya

Installed Capacity: 5.1 Mega Watts

Commisioning Year: 2009

Wind Turbines: 6

Output of each turbine: 850kW

Model: Vestas V52

Main Contractor TPF-Econoler SA (Belgium)

Location:Ngong Hills, 22km SW of capital, Nairobi - Kenya.

Standing tall at a height of 50m from the ground, the wind turbines rotate at the winds pace in a bid to generate Kenya's source of Wind Power.The Ngong Wind Power Project which was commissioned in August 2009, is Kenya's largest Wind Power Station but will come second once the Lake Turkana Wind Power Project (LTWP) is completed.

The 6 Turbines, each with a maximum output of 850kW produce a total of 5.1MW of clean energy into the grid.For the Vestas V52 Model turbines, KenGen executed a contract for the implementation of Ngong Hills Wind Power project with TPF-Econoler SA (TPFE) of Belgium on 29th October 2007.

Kenya receives sh.3.79 Billion to finance regional energy projects

Kenya has recently aquired  a 3.97billion loan form the African Development Bank. This is part of a regional grids of five countries.The five countries include Uganda, Burundi, DRC, Congo & Rwanda. Speaking during the signing ceremony, at The Treasury building, Finance minister Uhuru Kenyatta, said the project will enhance cross border sharing of electricity and development at low cost power resources. The loab deal was signed by AfDB representative: Mrs. Domina Buzingo.

This loan will facilitate:

1. Upgrading of 769km of 220kV and 110kV Power lines.
2. Construction & Reinforcement of 17 transformers to interconnect the grids of the Nile Equatorial Lake Countries.
3. Construction of a 220kV double circuit transmission line from the border of Uganda to the substation at Lessos - which shall be expanded with additional transformers & switchgear
4. Uganda - Rwanda interconnection, upgrading of the Burundi, DRC and Rwanda interconnection lines.
5. Operational Costs.

One of the major potential sources of power is the Iinga Dam in DRC which has a potential of 40GW

Stadium Power Supplies - FIFA World Cup 2010

Given the national and international exposure that each stadium in the FIFA World Cup 2010 receives, it is imperative that all efforts are made to ensure that electrical power supply in the venues is as reliable as possible. In this post according to “22nd AMEU Technical Convention110 AMEU Proceedings 2009 Stadium electricity supplies – an assessment of the specification and readiness” document I have outlined the various power aspects involved in Stadium Power Supplies.





The stadia and surrounding areas are fundamentally broken down into three
Main focus areas include:
1. Domestic/stadium power (stadium itself)
2. Technical Power (Media & Broadcasting)
3. Overlay or precinct (area immediately surround the stadium including ticketing offices, hospitality, Accreditation etc)

Corona

Have you ever wondered why high voltage power lines buzz (zszszs sound)? Its because they are producing corona which is interacting with the surrounding air.
 Corona is the process by which current, perhaps sustained, develops from an electrode with a high potential in a neutral fluid, usually air, by ionizing that fluid so as to create plasma around the electrode. The ions generated eventually pass charge to nearby areas of lower potential, or recombine to form neutral gas molecules. Plasma is a fourth state of matter (after solid, liquid, and gas). It is like a gas or liquid, but molecules are separated into atoms, and the outer electrons are stripped off and are freed into the plasma. In comparison, the sun is essentially a big ball of very hot plasma.

Introducing AutoCAD Electrical 2010

AutoCAD® Electrical software is AutoCAD® software for controls designers. Purpose-built to create and modify electrical control systems, AutoCAD Electrical includes all the functionality of AutoCAD plus a complete set of electrical CAD features. Comprehensive symbol libraries and tools for automating electrical engineering tasks help save hours of effort, so you can spend more time innovating.
AutoCAD Electrical control design software offers significant productivity gains over AutoCAD. Features like real-time error checking and a library of more than 650,000 electrical symbols help to increase design efficiency, while the familiar AutoCAD environment facilitates a smooth transition. Designers can maintain existing AutoCAD workflows, while adopting the enhanced functionality of AutoCAD Electrical at their own pace.

Power Factor #2

Power factor in Relation to Power

Power is consumed only in resistance since neither pure inductor nor the capacitor consumes any power. The power consumed (True Power) in Inductor (L) and Capacitor (C) is zero. There is a circulating power that moves from the source to the load back and forth and does not do any useful work in the circuit. Current and voltage are in phase in a Resistance while they are 90 Degrees out of phase in (L) and (C). When current is in phase with voltage it produces active or True Power while it produces Reactive Power when 90 Degrees out of phase with voltage.