Renewable Energy Stocks Close-Up; The Carbon Footprint of Solar Stocks

Released on: June 12, 2008, 11:33 am

Press Release Author: InvestorIdeas.com

Industry: Environment

Press Release Summary: "PV technologies generate far less life-cycle air emissions
than conventional fossil-fuel-based electricity generation technologies"

Press Release Body: POINT ROBERTS, WA and DELTA, BC-June 12, 2008
-.RenewableEnergyStocks.com, a leading investor news and research portal for the
renewable energy sector within Investorideas.com, presents a sector close-up on
solar stocks and their environmental impact .

With the controversy faced over Ethanol stocks, investors can gain insight into
their green portfolio of solar stocks.

RenewableEnergyStocks.com reports on environmental concerns associated with solar
technology and how the industry is responding, featuring Xsunx, Inc (OTCBB: XSNX)
and First Solar.

The US Department of Energy reports, " Modern solar electric power-generation
systems such as photovoltaics (or PV) are some of the most elegant and
environmentally benign energy systems ever invented."

Quoting a report published in January 2008,' Emissions from Photovoltaic Life Cycles',
" Photovoltaic (PV) technologies have shown remarkable progress recently in terms of
annual production capacity and life cycle environmental performances, which
necessitate timely updates of environmental indicators." The report further states,
"Overall, all PV technologies generate far less life-cycle air emissions per GWh
than conventional fossil-fuel-based electricity generation technologies. At least
89% of air emissions associated with electricity generation could be prevented if
electricity from photovoltaics displaces electricity from the grid."
Source: http://pubs.acs.org/cgi-bin/abstract.cgi/esthag/2008/42/i06/abs/es071763q.html

Keeping tabs on life-cycle emissions of carbon, chemicals and heavy metals used in
products is nothing new, but the trend now appears to be accelerating which may
force some "Green" technologies such as solar PV to revisit their environmental
impact and overall carbon and environmental footprint.

Tom Djokovich, CEO, of Xsunx, Inc. (OTCBB:XSNX) a solar technology company engaged
in the build-out of its multi-megawatt amorphous silicon thin film photovoltaic
(TFPV) solar module manufacturing facilities, reports, "There's a growing interest
within the sustainable energy industry in developing green credentials across the
entire footprint of your brand. Here at XsunX we're working to balance our
industrial manufacturing needs and product designs to minimize our impact on the
environment we're working to improve.\"

He continued, "With XsunX, about half of the power our new 25 mega watt solar module
manufacturing plant will use comes from renewable energy in the Pacific North West,
we are recycling an existing building and numerous pieces of support equipment so as
not to waste resources and the design of our thin film amorphous solar module does
not transfer any toxic materials into the product or environment unlike the heavy
metal concerns addressing some of the other module manufacturers in the industry."


As evidence of the growth in accessing long term environmental impact between
various solar technologies the January 2008,' Emissions from Photovoltaic Life
Cycles', the report presents a comparative analysis between four PV technologies,
"Based on PV production data of 2004-2006, this study presents the life-cycle
greenhouse gas emissions, criteria pollutant emissions, and heavy metal emissions
from four types of major commercial PV systems: multicrystalline silicon,
monocrystalline silicon, ribbon silicon, and thin-film cadmium telluride. Life-cycle
emissions were determined by employing average electricity mixtures in Europe and
the United States during the materials and module production for each PV system.
Among the current vintage of PV technologies, thin-film cadmium telluride (CdTe) PV
emits the least amount of harmful air emissions, as it requires the least amount of
energy during the module production. However, the differences in the emissions
between different PV technologies are very small in comparison to the emissions from
conventional energy technologies that PV could displace. "

Companies that make cadmium-telluride solar cells include Q-Cells and First Solar.
According to First Solar's website, "First Solar\'s advanced CdTe technology is
instrumental in accomplishing our environmental mission. CdTe is uniquely capable of
producing low cost solar modules, making widespread, cost-effective solar
electricity a reality. Its physical properties are optimal for converting sunlight
into electricity, resulting in highly efficient photovoltaics with thin (< 3 micron)
semiconductor layers. CdTe is a robust material with the demonstrated capacity for
high volume, low cost production."

Policies related to the introduction of heavy metals and other hazardous chemicals
into the environment differ from region to region with the European Union adopting
some of the most stringent guidelines. The Restriction of Hazardous Substances
Directive (RoHS) effective in July 2006, in the European Union has attracted
concerned about its impact on some of the companies in the sector. The restriction
mandates a maximum content of 0.1wt % lead (Pb) and 0.01wt % cadmium (Cd) is allowed
in homogeneous materials. The restrictions currently exempt the solar industry but
there is a push for the reduction or substitution of the heavy-metal content in the
Photovoltaic market in the EU to maintain its green image.

Investors following solar stocks can research the sector using the
Renewableenergystocks.com stock directory and also read recent and past columns by
on-site solar expert, J. Peter Lynch.

Featured Solar Showcase Company:

Solar Company XsunX, (OTCBB: XSNX) is developing amorphous silicon thin film
photovoltaic (TFPV) solar cell manufacturing processes to produce TFPV solar
modules. Visit Media showcase: http://www.investorideas.com/co/xsnx/default.asp or
http://www.xsunx.com/


About Our Green Investor Portals:
www.RenewableEnergyStocks.comŽ is one of several green investor portals within
Investorideas.com and provides investors with stock news, exclusive articles and
financial columnists, audio interviews, investor conferences, Blogs, and a directory
of stocks.

Disclaimer: Our sites do not make recommendations. Nothing on our sites should be
construed as an offer or solicitation to buy or sell products or securities. We
attempt to research thoroughly, but we offer no guarantees as to the accuracy of
information presented. All Information relating to featured companies is sourced
from public documents and/ or the company and is not the opinion of our web sites.
For disclosure purposes, the site is currently compensated by featured showcase
companies, news submissions and online advertising. XsunX solar showcase company
compensates the website $5000 per month
http://www.investorideas.com/About/Disclaimer.asp.

For more information contact:
Dawn Van Zant 800.665.0411
Email: dvanzant@investorideas.com
Source: Investorideas.com RenewableEnergyStocks.com, XsunX



Web Site: http://www.renewableenergystocks.com

Contact Details: Dawn Van Zant 800.665.0411
Email: dvanzant@investorideas.com

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