® Low-cost Parabolic Trough for MENA
Kelly Beninga
Chief Commercial Officer
May 5, 2011 Menasol 2011
© SkyFuel, Inc

Company Overview
2
Parabolic Trough Provider
NOT a project developer or EPC
Founded in 2007
Venture Capital Funded
Proprietary Design
Patented technology
20-30% lower cost
SkyTrough ®
Next-generation parabolic trough based on ReflecTech ® mirror film
ReflecTech® Mirror Film
Shatterproof, non-glass
Developed by NREL and SkyFuel
© SkyFuel, Inc

®
•   6
Meter
Aperture
Width
•   115
Meter
SCA
Length
•   4.7m,
80
mm
Receivers
•   Aluminum
Space
Frame
•   ReflecTech ® 
Mirror
Panels
R&D 100 Award Winner
© SkyFuel, Inc

Integrated Design
•   Trough
was
designed
from
the
boKom
–
 up
as
a
low
cost
“world
trough”
•   All
metal
components
can
be
fabricated
 in
most
any
country
with
exisQng
tooling
 common
in
industrial
manufacturing
•   Simple,
transportable
equipment
used
 for
field
assembly
–
no
jigs,
welding,
or
 heavy
liUing
equipment
required
•   In‐country
mirror
panel
fabricaQon
–
no
 glass
shipping
•   Fully
recyclable
with
residual
value
Aluminum Strut Extrusion
4 © SkyFuel, Inc

ReflecTech ® Mirror Film
5
Reflectance – 93%
Lifetime > 25 Years
Lightweight
Commercially Proven
Low Cost
Self Adhesive
Developed in collaboration with the US National Renewable
Energy Lab (NREL).
© SkyFuel, Inc

®
Ultra
Accelerated
Weathering
System
(UAWS)
The
most
accelerated
method
to
determine
the
long‐term
 durability
of
a
material
to
outdoor
exposure.
A:er
receiving
the
equivalent
cumula=ve
UV
dose
of
over
25
years
outdoor
exposure,
no
degrada=on
and
no
loss
in
 reflectance
were
measured.
UAWS:
50X
Concentra=on
ReflecTech
Samples
on
UAWS
© SkyFuel, Inc

No measureable loss in specular reflectance after over 53,000 scrub cycles, equivalent to >
50 years of scrubbing.
7

Monolithic Mirror Panels
ReflecTech
Mirror
Film
•   Lightweight,
high
reflectance
•   Lasts
over
25
years
Monolithic
Reflector
•   ReflecTech
laminated
to
aluminum
sheet
•   Maximizes
mirror
surface
•   No
field
adjustment
needed
ReflecTech
Mirror
Film
on
 aluminum
sheet
Fast
InstallaQon
8
•   33
m 2 /man‐hour
for
SkyTrough
•   Compared
to
8‐10m 2 /man‐hour
for
glass
 reflector
facets 1
Monolithic
ReflecTech
Mirror
Film
 reflector
panel
ConvenQonal
Glass
Mirror
Facets
High
Precision
Guide
Tracks
High
precision
 guide
track
 along
enQre
 reflector
4
 fasteners
 per
mirror
 facet
“ The
final
result
is
the
highest
op1cal
accuracy
seen
 to
date
in
parabolic
trough
collec1on
technology ”.
U.S.
Na=onal
Renewable
Energy
Laboratory
Note:
1
 A
common
industry
es=mate
requires
15
man‐minutes
to
install
 each
glass
mirror
in
a
trough
collector
(Nevada
Solar
One,
EuroTrough,
SENER
Trough)
© SkyFuel, Inc

Approximately to scale.
LS-2 , Luz
SEGS III-V
A = 40 m 2
LS-3 , Luz
SEGS XIII, IX
A = 69 m 2

Steel
 Aluminum
Euro-Trough
SolarMillenium
Andasol 1
A = 69 m 2
Nevada Solar One
Solargenix,
Nevada Solar One
A = 40 m 2
9
ALUMINUM
SkyTrough ™
SkyFuel (2009)
A = 84 m 2
ALUMINUM
© SkyFuel, Inc

Lightweight Aluminum Space Frame
10
40%
Fewer
Parts
30%
Less
Material
2x
Assembly
Speed
© SkyFuel, Inc

SkyFuel Cost Advantage
11
Acciona SGX
Receivers
Ball Joint Assemblies
Freight & Transport
Reflectors
Drive & Controls
Installation Labor
Space Frame
Receiver Supports
Foundations
SkyTrough ®
Pylons & Bearings
Module End Plates

SkyTrough® Thermal Efficiency
Collector thermal efficiency measured at NREL
12
Measurements
Optical efficiency 1 = 77.4%
Thermal Efficiency 2 = 73.7%
Result
Collector thermal efficiency demonstrated to be on par with the highest performance trough systems in the world
1 Measured at normal incidence
8   Includes receiver thermal losses. Calculated for DNI of
1000 W/m 2 at normal incidence and typical collector operation temperatures: 290˚C inlet,
390˚C outlet, 25˚C ambient
© SkyFuel, Inc

MENA Sourced Components
All Aluminum parts
13
All Steel parts
© SkyFuel, Inc

US Imports for MENA Projects
ReflecTech Mirror Film
Helical Hydraulic Drive and controls
14 © SkyFuel, Inc

High Density Mirror Shipping
140 m 2 per roll of ReflecTech ® 84,000 m 2 per shipping container
15
120 SCAs, 22 MWe per container
© SkyFuel, Inc

Mirror Panel Fabrication Line
Annual Capacity - 150 MWe (136,000 panels)
Fully automated coil processing and ReflecTech ® film lamination line
Can be set up in any country
Flat panels shipped to site in high density crates
16 © SkyFuel, Inc

SEGS II Demonstration
Rapid Mirror Panel Installation
17 © SkyFuel, Inc

SEGS II Demonstration
Operational Since December, 2009
18 © SkyFuel, Inc

SEGS II Demonstration
Predicted versus Actual Performance
19
1200
1000
1000
800
800
600
600
400
400
Measured Performance (kW-th)
200
Predicted Performance (kW-th)
200
SEGS II –
13 Aug10
0
5:30 6:30 7:30 8:30 9:30 10:30 11:30 12:30 13:30 14:30 15:30 16:30 17:30
Time (Pacific Standard Time)
0
© SkyFuel, Inc

Validation by Independent Engineer
“The two parabolic troughs chosen for cost comparison are the Acciona SGX and
Solar Millennium ET-150 troughs. Based on our independent evaluation, the estimated cost for
SkyTrough is about 30% less than SGX and about
21% less than ET-150.”
20 © SkyFuel, Inc

21
®
   One
year
warranty
against
defects
in
 materials
and
workmanship
   Up
to
five
year
warranty
on
thermal
 performance
of
the
SkyTrough
   20
year
warranty
on
the
average
 specular
reflectance
of
reflector
panels
   Backed
by
major
insurance
company

Questions
22
Kelly Beninga
Chief Commercial Officer
Arvada, Colorado, USA
Kelly.Beninga@SkyFuel.com
+1 303.330.0276
© SkyFuel, Inc