Siemens Ki Dunya - Siemens Pakistan

Global Network of Innovation - Energy
Global Network of Innovation
Energy
Power from the World’s Highest Dam Wall
Siemens is installing a gas-insulated high voltage line (GIL) with
a total tube length of about 3.2 kilometers for the world’s
largest dam wall, at the Jinping I hydropower plant in China. A
GIL’s high performance allows it to transmit larger amounts of
energy than is possible
with cables — in this case
between the foot of the
305-meter-high dam wall
and the overhead line at
the dam’s water level.
14 Siemens Ki Dunya | August 2009
The power plant poses a
formidable challenge: The
power generated must be
transmitted in the power
plant cavern in a vertical
tunnel over a distance of
about 220 meters. Unlike a
high voltage cable, a GIL
features a special design
that does not entail a risk
of fire.
A GIL’s transmission losses
are lower than those of high voltage cables or overhead lines.
The gas insulation system remains practically unaffected by the
passing of time, so the simple, nearly maintenance-free
construction ensures a long service life.
Siemens Generates Solar Power for California
Siemens will be installing a steam turbine into the Invapah
Solar Complex, the first commercial solar thermal power plant
in the U.S. to feature a power tower. The steam will be generated
from water heated by thousands of mirrors. The facility in
California’s Mojave Desert is being built by BrightSource Energy.
The Mojave Desert also includes Death Valley, where summer
temperatures can climb to 45 degrees Celsius. Solar power
technologies represent an important component of the
Siemens portfolio of environmental products, with which the
company generated €19 billion in sales in fiscal year 2008.
Siemens will be
delivering a steam
turbine generator with
an output of 123
megawatts (MW).
When the power plant
commences operations
in late 2011, it
will supply climatefriendly
solar power to
35,000 households.
The experts at
Siemens Energy
adapted the SST-900
industrial steam
turbine, with reheat,
to the special
challenges that solar
technology poses.
The solar power station will be equipped with individually
guided mirrors (heliostats) that reflect the sunlight directly to a
boiler at the top of a tower. The heliostats are arranged in an
asymmetric arc around the tower. The boiler at the top of the
tower produces steam at a temperature of 550 degrees
Celsius. This steam is subject to a high pressure and can thus
drive a turbine. After the steam has cooled off, it is channeled
back into the boiler, where it is reheated to flow through a
low-pressure turbine. This reheating process increases the
power station’s efficiency under varying operating conditions.
In addition to starting up quickly, the turbine can operate
flexibly to handle load fluctuations.
Bio-mass heating power station in Böblingen
The SIPAPER Reject Power Station in Böblingen (Germany) has
been transforming fine
hacked material into
electricity and heat since
September 2008. Fine
wood sieve residue from
the surrounding gardens
and forests, which
would block up the
furnace gratings of large
power stations are
burned in the new
heating power station in
a combustion chamber
at 950 degrees Celsius.
The annual amount of
fuel, of about 20,000
tons, creates the energy
for supplying 1,500
households with electricity for one year. This is equivalent to a
saving of approximately 2.7 million liters of heating oil, the
CO2 emission is reduced by 1,300 tons annually.
Solar Valley: Solar Power to become Cheaper
29 companies and twelve research institutes from Central
Germany have one
common goal: solar
electricity should be
competitively priced
when compared with
conventional
electricity. And Solar
Valley Mitteldeutschland
in
Bitterfeld-Wolfen is
getting closer and
closer to this goal,
with the largest
individual project
"xµ-Cells” having recently been launched. Designated a Cluster of
Excellence by the Federal Ministry for Education and Research
just last year, the association has committed itself to reducing the
cost of electricity from roof systems by 2015 so that it is cheaper
than conventionally generated electricity. The Cluster of Excellence's
individual projects were approved several weeks ago. The
most extensive project, the "xµ-Cells” project, is primarily
concerned with minimizing material use. The focus is therefore
on producing thinner cells and increasing cell efficiency.
To do this, Solar Valley has enlisted the help of the Fraunhofer
Institute for Solar Energy Systems (ISE) in Freiburg.
The ISE can demonstrate several record efficiencies with small
laboratory cells such as the world's best value to date for a
multicrystalline silicon solar cell. The 200 researchers in Freiburg
working in the PV sector are already looking forward to working
with the scientists from Saxony-Anhalt. "In the past, we have
seen good results with the Cluster of Excellence's industry
partners in the area of production-related processing,” revealed
Dr. Ralf Preu, Department Head of Photovoltaic Production
Technology and Quality Assurance at Fraunhofer ISE. The
Fraunhofer Centre for Silicon Photovoltaics CSP in Halle will take
on the overall scientific co-ordination of the "xµ-Cells” project.
Solar Valley is the silicon photovoltaics centre with the highest
concentration of companies in the world. The cluster is made up
of 29 companies, seven research and development institutes and
four universities in three federal states, mostly from Saxony-
Anhalt. All photovoltaic technologies in Saxony-Anhalt are also
combined in Solar Valley.
Local Boy Tops the World
Umair Ahmad from E T&D Projects (Engineering) Pakistan
bounced to the top in the Global PrimTech* Power User Course
held in Germany, where he is on a six month training delegation;
covering the finer aspects of Primary Engineering & Design
techniques for Extra-High & High Voltage Substations.
There were, in all, the following eight participants in the said
training:
1. Mr. Abdul Samad Siemens UK
2. Mr. Alex Etilio Zapata Siemens Peru
3. Mr. Alf-Boerge Bonsaksen Siemens Norway
4. Mr. Are Johan Hansen Siemens Norway
5. Mr. Gustavo Adolfo Valbuena Siemens Colombia
6. Mr. Olavi Vaiko Siemens Finland
7. Mr. Umair Ahmad Siemens Pakistan
8. Ms. Veronika Hoeder Siemens AG
At the end of the course, they appeared in an online examination
for certification. Our local boy, Umair scored a 100% and topped
the list.
The trainers for this program were Mr. Egon Pickl, and
Mr. Kristijan Savor
Message from MD
The Managing director Mr.Sohail Wajahat H.Siddiqui on hearing
the news sent this message to the department:
“I am very happy to hear that Umair Ahmad has topped the list in
the Global Primtech Power User Training. He has brought pride
not only to Siemens but to Pakistan by his performance and
demonstrated that there is an abundance
of talent in the country awaiting recognition
given a chance to prove themselves.
Heartiest congratulations to Umair and the
whole department for this outstanding
achievement.”
* PrimTech is Siemens AG’s standardized
Software tool for Engineering & Design
of High Voltage Substations in true scale 3D.
Siemens Ki Dunya | August 2009
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