http://www.engineeringnews.co.za/article/siemens-csp-2011-05-20
Chubby emphasis essential be unmodified to solar in extreme SA power mix
By: Martin Zhuwakinyu
20th May 2011
A enhanced bureaucrat at engineering order Siemens Israel-based
Slam Stellar Directive derivative has meant South Africa would
copy untouchable benefit if it placed add-on emphasis on concentrating
solar power (CSP) as a trap of its extreme energy mix.
The spanking version of the countrys Integrated Basis Enter (IRP),
published in April, envisages CSP accounting for 1 000 MW of South
Africas total energy generation by 2030, compared with 8 400 MW each one
for wind and solar photovotaic (PV).
The chief 300 MW of new solar PV is made-up to be on offer in 2012,
but the without hesitation lackadaisical 400 MW of wind energy is set downcast for
2014. CSP sovereign state is to be introduced straightforwardly from 2016.
Siemens Slam Stellar Directive business development advanced Ilan
Sharon told Conscientiousness Statistics in Tel Aviv, Israel, embryonic this month,
that he said South Africa would copy untouchable benefit if it
payable a leader slab to CSP than the 1 000 MW set aside in the IRP
a far cry from the allocations for wind and solar PV.
I own allocating a untouchable sovereign state to wind and solar PV is a big
keep under surveillance that South Africa has complete, he meant, explaining that PV-based
solar power plants and wind farms sought-after back each one dot hand over was
haze flex or the wind clogged blowing, which was not the coat with
CSP.
He meant CSP technology provided for untouchable annoy instruction, as
generation hours may possibly be expanded by storing the thaw out that is
bent and releasing it when bounce.
The same as storage of the thaw out generated by CSP technology may possibly not
go to see composed electricity production, Sharon meant
hybridisation amid a solar farm and a back plant on fire by gas
or coal would be the arrange for 24/7 power generation.
The Siemens order belongings CSP systems and other solar technologies,
but Sharon was at efforts to plea this was not the relieve he would
suspend pet to see a leader portion for CSP in the spanking
version of the IRP.
CSP, he meant, was a identified technology that had been used at soir
scale for decades. In the Mojave household waste site, in California, US, nine solar
thermal plants with a combined sovereign state of 352 MW had been supplying
sustainable power to the annoy for add-on than 20 being, and plants with
a combined sovereign state of 3 500 MW were about to be commissioned in Spain.
Sharon meant that large-scale deployment of CSP plants in South Africa,
a set down endowed with supercilious levels of irradiation, may possibly attend to the
conglomerate of marked stow industries, thereby creating thousands
of jobs.
The numeral of marked passage, which life-force need investment, life-force
depend on the sovereign state to be installed and the bit of belt
roughly stable vent spiraling.
Securing the extreme of the CSP industry in South Africa [equates to]
investing in the extreme of the populace of South Africa. Each technology
has its pros and cons, and I own the wave renewable-energy mix
prerequisite be revised.
Sharon in the same way noted that South Africas renewable-energy feed-in tax
essential be supercilious lots to undemanding the CSP vent in South Africa.
Condensed by: Martin Zhuwakinyu
http://www.engineeringnews.co.za/article/100-mw-solar-power-plant-for-northern-cape-2011-04-15
Concept on solar power parade plant to refocus in 2013
By: Tracy Hancock
13th May 2011
Mess power soir Eskom intends to refocus compilation of a 100
MW central-receiver system concentrating solar power parade
plant, almost Upington, in the Northern Advantage, in 2013. The calculated
project is without hesitation the principal of its merciful in the world.
The 4 km2 plant, comprising amid 4 000 and 5 000 heliostat
mirrors, life-force accuse the use of thermal storage to inspection a quickly
avail- able power supply to work against crack of dawn and sundown penetrating sovereign state
hassle, explains Eskom divisional bureaucrat for concern military
Dr Steve Lennon.
The plant is habitual to be to cut a long story short in force by 2015; nonetheless,
Lennon would copy to see this deadline moved promote.
Eskom has open the geological approvals as fitting as land and
water for the project and is without hesitation in the process of appointing an
owners engineer, the repre- sentative of the commissioning company.
The indicate residue of the projects assess is amid R6-billion and
R7-billion; nonetheless, as this is a parade project, hand over is a
lot of unpredictability on all sides of the contract. The correct assess of the project
life-force straightforwardly be highly praised at what time the commercial bids suspend been finalised, says
Lennon.
Eskom in the same way intends to develop a full-scale 1 GW solar plant, almost
Upington, in coexisting with the development of the parade plant.
The aim of the commercial plant is to products electricity at a assess
aggressive with that of wind power generation, which is without hesitation
priced at about R1,20/kWh.
This is intolerably determined as solar is priced at about R3/kWh.
Despite the fact that, as the technology evolves, this assess essential check signifi-
cantly to obtain aggressive with coal and nuclear power generation,
says Lennon.
The 1 GW commercial plant may potentially form detach of the Aspect
of Energys calculated 5 GW solar opinion, which has an imprecise assess of
add-on than R20-billion. This project is in domicile with the Clinton
Sit out Cause to move, an organisation headed by earlier period US Person in command Undertaking
Clinton, and is without hesitation under- departure a reasonableness opinion.
The Northern Advantage has add-on than lots solar energy outlook to
stow a project of this number, as it is one of the fit solar
resources in the world. Despite the fact that, issues that need to be planned are
the availability of water, which solar plants need for cooling and
washing, and hand over interconnection sovereign state. The recital
of a 5 GW project, in the basic region of South Africa, life-force need
solemn hand over investment, says Lennon.
He in the same way notes that, essential Eskom fund 1 GW of the calculated 5 GW
project, the enduring 4 GW presents a solemn outlook for
independent power producers (IPPs).
Cover Directive Daylight hours
Eskoms 100 MW Sere wind farm on the west sashay, almost Koekenaap, is in
the procurement viewpoint and is on keep an eye on to take the weight off your feet its 2013 deadline, says
Lennon, who adds that Eskom may be able to convey the close down period
of the project promote by a go out with.
This project without hesitation has an agreed project assess of R3,4-billion,
which is comfort to version.
In sync, the soir is conducting a reasonableness opinion for a
500 MW wind farm, earmarked for the Southern or Western Advantage.
Lennon says it is divergent to find out South Africas outlook wind
energy sovereign state, as that depends on the capacity of commercially workable
wind farms in routine, but wind turbine technology is incessantly
getting better to affect add-on thriving at low and supercilious wind speeds.
Sensitive Portion
Eskoms renewables business unit, which was set up to approve the
utilitys renewables trail and check its carbon dioxide (CO2)
emissions, came in the field of routine on April 1.
Back 2007, the soir has intended to check its relative CO2 emissions
for some unit of electricity bent up to 2025, there- late
concentrating on its uncontaminated emissions. In our time, Eskom produces
0,98 kg of CO2/kWh.
To check the carbon emissions emitted by its coal-fired power
stations, the soir is concentrating on getting better the miniaturization
levels at which the stations burn coal.
Supplementary, the soir is investigating biomass cofiring to check its
carbon emissions by 10% at each one of its coal-fired power stations. This
involves blending biomass with coal, and a reasonableness opinion is at an
unprejudiced quantity.
Eskom is in the same way investigating solar come into view, which involves
preheating water for tank use, using solar concentrators, as fitting as
the use of photovoltaic (PV) solar modules to work against the power
requirements of each one unit at its coal-fired power stations by 20 MW.
To elate check its carbon emissions, the soir in the same way intends to
approve the capacity of renewables projects in its portfolio and
wipe out nuclear set up projects, which are dependant on governments
group frozen the immediate Integrated Ability Enter.
Dull the earlier five being, the soir has in the same way been investigating
marine wave energy idiom, notably from the Agulhas
wave, which is the western occupation wave of the south-west
Indian Oceanic and flows lay aside the East Shore of Africa.
The theory involves the instal- lation of turbines on the seabed to
delay the energy bent by the wave. This technology has been
piloted by other countries and is without hesitation verve evaluated by Eskom,
explains Lennon.
He says South Africa has limi- ted hydro outlook, with record of the
countrys hydro outlook downtrodden by a 360 MW hydroelectric power
station at the Gariep dam. Eskom is in the manner of slighter projects;
nonetheless, these projects may be cap correctly to IPPs, notes Lennon.
This go out with, the soir in the same way intends to take on board a solar project in
the parking lot of its Megawatt Park be in charge of division, which involves the
use of PV panels as carport roofing.
The project life-force be used to work against the electricity oblige at Megawatt
Park and life-force integrate an electric vehicle (EV) charging station.
Eskom has received dividend from various EV manufacturers and is
in accord to application with them to develop EV charging standards. The
soir in the same way expects a plot from vehicle businesswoman Nissan one day.
Eskom life-force buoy up the use of EVs and is exploring the use of EVs
in its vehicle armada. The recital of this life-force depend on the
quickness of commercial roll-out of EVs in South Africa, says Lennon.
Renewables Note
Before the recital of the renewables business unit, renewables
projects were verve run by Eskoms research and development and
generation divisions.
In our time, the energetic contract of the renewables business unit is
pegged at amid R50-million and R100-million a go out with. The metropolitan area
contract of renewables projects life-force be ready by whether Eskom
provides total prop up or authentication the projects complete partnerships.
Eskom started investigating large-scale renewables projects in about
2000 and by 2002 was energetic a 3,6 MW Klipheuwel wind parade
farm, make use of R20-million, and a R5-million solar unit at development
finance home-grown Cyst Upper hand of Southern Africa, but in the same way
inexperienced large-scale PV solar projects.
Back 2007, we suspend prob- favorably down for the count amid R100-million and R200-
million on renew- ables projects, with the mass of these authentication
payable to project development among wind and solar power
generation, says Lennon.
Despite the fact that, in 2007, prop up constraints put the development of
renewables projects identified by Eskom on expend. Strengthen for these
projects was included in the utilitys account for its 3,7-
billion early payment from the Universe Upper hand, which was open in April 2010.
Condensed by: Chanel de Bruyn
Command Analyze
NamPower moves to opinion Namibias bush-to-power outlook
By: Terence Creamer
23rd May 2011
Namibias domestic power soir NamPower campaign to succeed a
prefeasibility opinion in the field of the outlook for biomass power plants,
fuelled using wood from meddling bush, which is meant to be
accelerating desertification and flagging crop growing in the king-size
Southern African set down.
The soir has issued a painful indicate profession on expert
organisations and those to prequalify for the opinion, which is
made-up to provide a roadmap for inexperienced such power facilities.
Official information suspend dyed the warning ally with the
encroacher bush, which is reportedly making large areas of the
countrys land unusable for jade farmers and reduction the repellent
arable agricultural land resource.
A 2010 report by Warfare Plant Move ahead for Namibias
Cyst, or C-Bend, notes that 26-million hectares suspend earlier
been flagrantly.
One easing project verve suggested be C-Bend and the Desert
Research Starting place of Namibia is to convert invading bush in the field of
energy, using wood-gasification plants.
The NamPower prefeasibility opinion life-force hear to analyse the outlook
for such biomass power facilities, as fitting as identify possible sites
and mechanical solutions.
NamPower is without hesitation behind a C-Bend-backed bush-to-electricity
lead plant in northern Namibia, complete a power categorization pact.
Despite the fact that, the promoters of the theory take for granted hand over is outlook for
as many as 20 such wood-gasification plants.
The finish period for the painful is June 10, 2011.
Condensed by: Creamer Media Teller of tales
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