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COMPANY
DESCRIPTION:
Evergreen Solar was formed in 1994 and is
headquartered in Marlboro, Massachusetts.
The company operates a 15MW production facility
in Marlboro and is building a 30MW facility
in Thalheim, Germany, through a joint venture
with Q-Cells and REC, called EverQ GmbH.
Evergreen sells its solar modules to a series
of distributors and dealers who install the
product in both commercial and residential
applications throughout the world.
Evergreen’s “claim to fame”
is its silicon ribbon manufacturing process,
which allows it to produce solar cells using
significantly less silicon than traditional
wafer-based manufacturing. In traditional
wafer manufacturing, silicon is cast in ingots
and then sawed with fine wires to produce
wafers, wasting silicon through kerf loss.
In Evergreen’s string-ribbon process,
two high-temperature strings draw a wafer
out of molten silicon, much like a soap bubble.
The ribbons, which are three inches wide,
six feet long, and the thickness of a business
card, are then scribed into six-inch strips
and then laser-cut into cells.
This technique has proven more efficient than
traditional methods because it uses ~35% less
silicon. Currently, Evergreen uses a double-ribbon
manufacturing process in which two ribbons
are drawn from each furnace. The company is
in the R&D stages of developing a quad-ribbon
process, which would double production capacity
per furnace.
ESLR
shares are up 46% year-to-date, and we expect
them to go much higher still.
KEY POINTS:
Facility Tour Firms Confidence in
Technology Roadmap
String Ribbon technology has been proven in
commercial production with the legacy Dual
Ribbon (a.k.a., Gemini) platform on track
at both Evergreen and its manufacturing three-way
joint venture EverQ in Germany. EverQ has
produced 12.6MW (Megawatts) of panels in 3Q
as it ramps to its 100MW production capacity.
While the next-gen Quad Ribbon wafer technology
is still in lab stage, the main technical
issues appear to have been resolved, and the
company is presently engaged in improving
the platform and output at the margin. Quad
Ribbon is on track to deliver higher throughput,
produce higher quality wafers, with higher
consistency—and do so using considerably
less silicon per cell than the traditional
ingot-to-wafer process.
Expansion Target Within Reach
The 75MW Devens plant is scheduled for 2009.
By this time Quad Ribbon technology should
be well on its way to maturity, with process
improvements significantly improved and refined.
Valuation
The rate of the solar PV (photovoltaic) industry
growth is estimated to be about 40% per annum
over the next few years. The IPO of the EverQ
three-way joint venture should bring a focus
to Ribbon technology, which will result in
in increased investor interest in ESLR shares.
Sustainable Competitive Advantage
in Low Cost
With Quad Ribbon, Evergreen expects to reduce
polysilicon usage to 2.5 grams per watt by
2011 from a current level of about 5 grams
per watt. Evergreen has already established
a leading position on silicon used per watt
as traditional ingot-to-wafer processes use
about 7-10 grams per watt. Evergreen’s
reduced-feedstock variable cost advantage
which is unique to Ribbon technology and unreplicable
using traditional processes is sustainable.
At an estimated average polysilicon price
of $70/kg, the company’s projected average
of 4 gram savings could reduce the cost per
watt by approximately $0.28. This equates
to a cost savings of about 10% per watt.
This advantage is relative to the polysilicon
shortage which could ease as silicon prices
come down. This means Evergreen’s materials
cost advantage attributable to Ribbon technology
would decrease in absolute terms.
Evergreen Establishes Firm Source
of Polysilicon
•
Evergreen’s announced polysilicon supply
agreement with Silicium de Provence S.A.S.
(Silpro) supports the company’s ability
to execute on capacity expansion plans with
this polysilicon supply sourced.
• The polysilicon agreement is for ten
years, with shipments beginning in mid-2010,
and will support ESLR’s sales goal of
over 1GW of cell production (~$3bn in sales)
through 2012.
• The move diversifies ESLR’s
polysilicon supply and may potentially increase
their bargaining position on further silicon
deals with both current and future suppliers.
• The additional supply signals management’s
confidence in reaching their aggressive capacity
expansion goals of 500MW of wholly-owned annual
capacity by 2012.
• Silpro is owned by SOL Holding (a
joint venture between Econcern and SOLON AG),
Photon Power Industries, and Norsun. The company
is expected to initially produce 4,000 metric
tons (MT) of polysilicon in 2010 and is expected
to double that capacity to 8,000MT in the
long term.
• In addition to their new agreement
with Silpro, ESLR has polysilicon agreements
in place with well-known suppliers such as
REC, Wacker Chemie, Nitol, and DC Chemical.
RISKS
TO PRICE TARGET:
Risks include, but are not limited to: 1)
technology risk, 2) the continuation of government
subsidies, 3) raw material availability, 4)
geographic diversity, 5) currency volatility,
6) production capacity build-out, 7) interest
rate increases, 8) module efficiency gains,
and 9) the potential competition from EverQ.
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