brochure in PDF format

What is HIT Double?
Bifacial solar technology, made only by SANYO, means our solar panels are
able to generate power from both the front and back face of the panels
simultaneously, achieving the highest power per square foot of any solar
panels in the world.
What applications are best for HIT Double?
With HIT Double panels, customers can enjoy new solar applications such as
awnings, canopies, trellises, carports, walkways, etc., in addition to traditional
ground-mounted arrays.
What technology enables the HIT Double bifacial characteristics?
SANYO’s proprietary HIT cells are bifacial by design and have a single
crystalline layer surrounded by amorphous silicon thin film layers on both
the top and bottom of the cell, enabling power generation from both faces.
SANYO designed the HIT Double solar panel with a glass/glass construction.
This unique construction allows ambient and reflected light off surrounding
surfaces to be harnessed by the back face of the panel. Typically, monofacial
solar panels, including SANYO’s HIT Power series, have an opaque back
sheet material. But with monofacial panels, unlike HIT Double bifacial panels,
no extra power is generated from the back face.
How can I maximize the power of HIT Double’s back face?
1) Elevate the panels as much as possible (at least one meter is recommended)
above the ground or roof surface, allowing reflected and
ambient light to be captured by the back face.
2) Place the panels over light-colored surfaces.
3) Ensure that mounting and support rails do not shade the back face.
What applications are not suitable for HIT Double solar panels?
HIT Double’s superior performance cannot be realized when mounting the
panels extremely close to surfaces—such as flush on a roof—because the
panel itself shades the area directly beneath it and prevents light from being
reflected off nearby surfaces to the back of the panel.
How much extra power can I expect from the bifacial effect?
Up to 30% above the HIT Double’s STC rated power level. Most installations
achieve between 10% and 20%, with the average being a 15% gain in
power. Please note that extra power will vary depending on individual site
characteristics such as system design and surface reflectance.
Are HIT Double panels more expensive than HIT Power panels?
Yes. HIT Double panels are approximately 10% more than HIT Power panels.
Therefore, well-designed systems and sites with good surface reflectance that
achieve 10% or more power gain due to the bifacial effect will actually cost less
per kWh than HIT Power solar panels.
Can I use mirrors to reflect light onto HIT Double panels?
No. HIT Double solar panels are designed only to capture normally occurring ambient
light beneath the panels. No mirrors, lenses, or other devices can be used in conjunction
with HIT Double panels to focus or concentrate light onto the panels.
How much light shines through the solar panel?
Approximately 15% of incoming light shines through the back face, allowing
the panels to be used in architectural and other aesthetic applications.
Does the HIT Double work when it snows?
Yes. Even when snow covers the front face, the solar panel can still generate
power from the back face due to reflected light from snow on the ground.
Who can install HIT Double solar panels on my house or business?
Please contact SANYO’s authorized representatives for a local installer in
your area by visiting www.sanyo.com/solar
I am an installer, where can I purchase HIT Double mounting solutions?
Companies such as Florian Solar Products, Direct Power & Water, Uni-Rac,
and others provide mounting solutions for the HIT Double.
Does the HIT Double come in a frameless or laminate version?
No. Not at this time.
FREQUENTLY ASKED QUESTIONS
HIT Double can increase the amount of electricity produced by up to 30%
compared to single-sided SANYO HIT Power panels depending on system
design, location, and surface reflectance. With such high output, the HIT
Double 200 watt model is the most powerful commercially available solar panel
in the industry at 21.1% equivalent module efficiency and 19.6 watts per square foot,
delivering 50% more power per square foot than the average solar panel.
When HIT Double produces more power, its value is unmatched.
As a result of the extra power generated from the back side, HIT
Double’s effective price goes down. Consider the following example
for illustration purposes only.
SANYO conducted comparison tests at different angles of inclination to
study the power increases achieved. At maximum bifacial effect, customers
can achieve up to 30% above the HIT Double’s STC rated power level. Most
installations achieve between 10% and 20% with the average being a 15%
gain in power. Please note that extra power will vary depending on individual
site characteristics such as system design and surface reflectance.
Watts
Reduced Price
Per Watt
- -9% -12% -16% -19% -22%
200w 219w 228w 237w 246w 256w
BASE
POWER
with
10% Bifacial
Effect
with
15% Bifacial
Effect
with
20% Bifacial
Effect
with
25% Bifacial
Effect
with
30% Bifacial
Effect
Model
:
HIT Double
200
Bifacial effect refers to the influence of backside irradiation on short circuit current (ISC)
compared to Base Power.