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Tuesday, November 24, 2015

What is dirty Electricity ? - source Care2.com

Dirty electricity is a growing issue that can be easily misunderstood due to its complexity.

To help clear up any confusion, here are some answers to common questions about dirty electricity.

What is dirty electricity?

Electricity enters homes and other buildings at a constant frequency, typically 50 or 60 hertz (Hz,) depending on which country you live in. This is considered “clean” energy as it enters your home.

The problem starts when the electricity reaches appliances, computers or other electronic devices. Many of these devices require a transformer to convert the voltage and/or current, which disrupts the flow of electricity.

These power disruptions create irregular, high frequency surges of “dirty” electricity that travel along a building’s normal wiring, which should only contain 50 or 60 Hz electricity. The surges are also known as high frequency voltage transients.

Is dirty electricity harmful to our health?

Electrical wires and any devices that use electricity emit electromagnetic fields (EMF), also known as electromagnetic radiation (EMR). These fields will easily pass through most common materials. They are strongest close to the source and diminish with distance.

Monday, November 23, 2015

Saudis use nine times more electricity than fellow Arabs | Arab News

Saudis use nine times more electricity than fellow Arabs

Published Wednesday Feb 19 2014

Saudi individuals use on average nine times more electricity than their
fellow Arab counterparts in Egypt, Algeria, Sudan and Morocco, according
to a report published on Tuesday.

These countries have 185.6 million
people, seven times more than Saudi Arabia. Egypt has a population of
79.39 million, Algeria 37.76 million, Sudan 36.43 million and Morocco
32.06 million. Saudi Arabia has a population of 28.4 million.

The report by the economic reporting unit of Al-Eqtisadiah newspaper stated
that an individual in Saudi Arabia consumed on average 8,161 kilowatt an
hour in 2011, compared to 951 kilowatt an hour by individuals in the
four largest Arab countries.

A previous report by Al-Eqtisadiah
stated that Saudi consumption of electricity rose by 3 percent in 2011
and 9 percent in 2012. The housing sector consumed 50 percent of the
Kingdom's total electricity production.

The energy sector is subsidized by the state, with the Kingdom using an
estimated 4 million barrels of oil a day to power the country.

In the Kingdom, air conditioners consume 51 percent of all electricity
production. This is also because local air conditioners have a low
energy efficiency ratio (EER). The EER is the ratio of the cooling
capacity, in British thermal units (BTU) per hour, to the power input in
watts. The higher the EER rating, the more efficient the air
conditioner.

READ MORE........

Saudis use nine times more electricity than fellow Arabs | Arab News

for more news on Electricity from Arab News

Friday, November 13, 2015

Austria uses 100 percent renewable electricity: Facts you should know : Did you know?

The 100 percent electricity in Austria's largest state is
generated using renewable sources of energy. This was announced by the
State's Governor Erwin Proell on November 5, 2015.

Here are some facts you might find interesting about the project:

A
total of 63 percent of Lower Austria's electricity now comes from
hydroelectric power. Another 26 percent is from wind energy, nine
percent from biomass and two percent from solar energy

Lower
Austria ranks fourth with regard to population density even though it
contains Vienna's suburbs; this is due to large areas of land being
predominantly agricultural. Lower Austria includes the country's capital
Vienna, which has a population of 1.6 million

Piedmont Tech HVAC Instructor Finds Enjoyment in Teaching - GwdToday - Greenwood, SC

Electricity has always been in Wade Smith’s blood. It’s been passed down in his family over three generations. And he is sharing that knowledge with the
heating, ventilation and air conditioning (HVAC) technology students at
Piedmont Technical College.

Smith is the third-generation owner of Cullum Electric and
Mechanical. He never had any questions of what he wanted to do. He holds
a bachelor’s degree in electrical engineering from Clemson University.

“Electricity has always interested me,” Smith said. “I toyed with the
idea of fiber optics because of a class I took at Clemson, but I like
volts and amps.”

A help wanted ad in the newspaper caught his eye 10 years ago. Piedmont
Tech’s HVAC department was looking for an adjunct instructor to teach
electricity in the program. Smith knew David Kibler, HVAC program
director at the time, through the program’s advisory committee. The idea
of teaching interested him, so he applied.

read more......

Piedmont Tech HVAC Instructor Finds Enjoyment in Teaching - GwdToday - Greenwood, SC

Electricity shortages an affront to quality education - The Zimbabwean

Modern education requires the use of ICTs which are powered by electricity. The shortages of electricity blighting our country has made computers and other ICT gadgets useless and inoperable tools.

Research for assignments and teaching material for teachers has been compromised
grossly thus negatively impacting on the quality of the teaching and
learning process.

Pupils are currently sitting for examinations including practical
subjects like chemistry, metal work, and food science among others.

The power shortages have become a headache for teachers to effectively
teach these subjects, let alone run the exams. Pupils on the other hand
can no longer read during night time as there is no lighting.

Those who dare are now using candle light which result in long-term eye sight complications.

Households and schools are now using generators as a mitigation
strategy. This comes with serious environmental consequences and it is
at variance with the global drive of sustainable development. Noise from
generators is unbearable for learners and fumes from the same can cause
health problems.

read more......

Electricity shortages an affront to quality education - The Zimbabwean

Lineman program accepts first woman - News - Dodge City, KS - Dodge City, KS

By Gloria Tucker / Dodge City Daily Globe

Posted Nov. 13, 2015 at 1:01 AM
Dodge City, Kan.

For the first time the Dodge City Community College Electrical and Power Transmission program welcomes a female student.

"I've
been teaching this program five years," instructor Dan Hopkins said.
"This is the first time I've had a female student because this
occupation is 98 percent male. There are not very many women who even
think about getting into this. I've seen female linemen as far back as
the late '80s and early '90s, but they are few and far between."

In
the program students learn the basics of electricity, climbing and
building power lines. In the first semester, they learn how to climb 40-
and 80-foot poles with a fall arrest belt and how to set those poles in
the ground. Certificates are earned in one year and an associate's
degree in two years.

"They can spend two to three
hours at a time up a pole, so they have to be broke into that," Hopkins
said. "The female body is built pretty well for climbing. What females
sometimes lack is upper body strength. You use a lot of upper body
strength once you get up the pole and start working. I know some women
who got into line work and then as years went by went into other fields
like metering and substation work. That pays very well. It really is an
occupation females should look into because they can branch out."

Dodge City native Vanessa Ybarra, 19, said she chose to enter the program because she saw an opportunity to be challenged.