2. ASSET DEVELOPMENT
ASSET MANAGEMENT
RESEARCH & DEVELOPMENT
This department is responsible
for the development of new
projects. After all, investing in
renewable energy is believing
in the future.
This division guarantees the
best quality: managing,
maintaining and optimising
our commercial PV portfolio.
Our team of engineers is
responsible for innovative
solutions concerning Potential
Induced Degradation (PID).
PID SCIENTIFIC INVESTIGATION
In 2010, Solon demonstrated the
existence of PID. The only right thing
we could do was to seriously
investigate the possibility of
degradation of our PV assets.
The research was conducted by the
renowned independent research
institute IMEC in collaboration with our
R & D department.
PIDBULL PATENTED TECHNOLOGY
The efforts of the scientific research
resulted in the development of a
patented solution for the PID effect:
Pidbull.
Initially, the new system was extensively
tested on our own industrial solar
plants.
Thanks to the spectacular results and
the increasing demand from fellow
developers, Pidbull was further
perfected. The official certificates
emphasise the high quality standard.
EDISON ENERGY
P I O N E E R I N R E N E WA B L E E N E R G Y
To maintain the position as one of the leading producers of
renewable energy in Belgium, Edison Energy continuously strives for
the maximum output of our energy assets. The company structure
reflects our strong believe in sustainability.

3. PID is caused by the high potential
difference with respect to earth and
occurs within the panels when the PV
system is in operation.
Due to this potential difference,
electrical charges move through the
materials of the PV module and have a
strong negative influence on the
performance of the PV cell. As a result,
the solar cell will generate less
electricity when it is affected by PID.
ACCELERATED DEGRADATION
PID causes an accelerated and
exponentially expanding degradation
of the performance of a PV park.
The extent to which PID is present, is
random. But in general, the
Performance Ratio of a PV park will
decrease by 2.5% to 30% in the first
years when PID occurs.
What is
PID
Besides testing the level of PID on your
PV installations, Pidbull has 2 powerful
functions.
PREVENTING PID
Pidbull has a preventive effect. Once
installed, Pidbull ensures that no yield
will ever be lost because of PID.
CURING PID
Pidbull restores your PID loss
permanently. It also ensures that your
output will no longer be subject to the
steeper degradation curve. And what is
even more: Pidbull will bring your yield
back to the expected higher level.
This way, Pidbull provides PV plant
owners, maintenance companies and
investors in solar panels a stable
solution to the PID problem.
PIDBULL
PID is detected through analysis of
your monitoring data when a
sudden drop in PR is observed
together with a spread in relative
outputs and operating voltages
Easy installation on-site
Only 3 Pidbull units required to test
the performance of the plant
Freedom to have the test
accompanied and documented by
an independent engineering
agency
Possibility of a mobile flash test
PID endangers the profitability of
solar assets. Therefore, it is of vital
importance to timely detect PID.
ADVANTAGES
OF THE PIDBULL TEST
Pidbull offers an easy and reliable
way to test the level of PID.
PID
test

4. PERMANENT SOLUTION
Pidbull offers a lasting solution to the
PID problem
USER-FRIENDLY
Easy to install and maintain
WITHOUT INTERFERENCE
Does not cause interference with the
PV system in operation
SUSTAINABLE
Sustainable solution for the lifespan of
your PV installation
ENERGY EFFICIENT
Negligible power consumption
(4W per Pidbull in operation)
PREVENTIVE
Pidbull has a preventive effect and
ensures that PID will never decrease
your yield
YOUR 10+1 BENEFITS

5. SAFE
Redundant safety system
SCIENTIFIC RESEARCH
After scientifically researching PID in
cooperation with the independent
European research centre IMEC, we
developed and patented our Pidbull
technology
IMPARTIAL
Freedom to have the testing and
analysis performed by an independent
engineering agency
CERTIFIED
Meets the rigorous standards as
proven with the granted international
certifications
COMPATIBLE
Works on any type of PV installation
T E C H N I C A L
D A T A S H E E T
PV OUT 1
PV OUT 2*
Standard connection
PV operating voltage
MAX PV power per unit
MASTER IN/OUT
INPUT
MAX inverters per unit
MAX MPPT zones per unit
MAX units per inverter
PV OUT Current MAX
P standby
P operating, typical
P operating, maximum
Dimensions
Weight
Connection towards PV panels
Connection towards PV panels
900 mm + MC4 compatible
125-1000 V
30 KWp
Supply for all units from Master Unit
48 V
1
2
No limit
2 x 5 mA
0.2 W
3.6 W
10 W
150 x 125 x 61 mm
815 g
OUTPUT 1
OUTPUT 2
MAX # of PIDBULL per output
MAX # of PIDBULL per master
INPUT AC
FREQUENCY
FE
Dimensions
Weight
Data acquisition
Memory card replaceable
Software Upgradable
Output 1 to PIDBULL units
Output 2 to PIDBULL units
25
50
220-240 V
50 HZ
Connection to grounded frame of
solar installation
330 x 260 x 135 mm
3 210 g
SD
YES
YES
PIDBULL UNIT
T E C H N I C A L D A T A P I D B U L L S Y S T E M
T E C H N I C A L D A T A P I D B U L L S Y S T E M
GENERAL
T E C H N I C A L D A T A P I D B U L L S Y S T E M
Operational ambient temperature
Outdoor/Indoor use
Protection grade
Standard for
-20°C -> +40°C
YES/YES
IP 65
p-type PV panels
* optional, for multi MPPT

6. WILLEM BROUX
Managing Director
MC Capital
As an investor and project developer,
we only have a few large PV
installations in property. When the PR
of the largest park (1.65 MWp) already
dropped to 75% after only 4 years, we
had to take action.
The Pidbull test showed us that the
decrease was due to the negative
effects of PID. Thanks to the installation
of Pidbull we were able to repair the
loss. The installation has achieved the
expected PR of 80% again."
As owners, it is our duty to at least
achieve the expected return on our
solar plants. Because of the high solar
irradiation in recent years, the
production exceeded our anticipations.
And yet, the PR of the PV plants
continued to decrease systematically.
This was the reason to do the PID test.
We discovered that 1/3rd
of our solar
parks was suffering from the PID effect.
Thanks to Pidbull, we achieved a 20%
improvement for the most affected
park!
WERNER VAN WALLE
Chief Investment Officer
PATRONALE LIFE
This spectacular result shows
that a big percentage of the
yield is lost without protection
from PID
Besides, one percent additional return
equals 4 percent extra cash flow
because of the high degree of financial
leverage. Even the 6% improvement for
our largest park of 4 MWp is therefore
a great result!”
Site Verhaegen, Aarschot [Belgium]
688 kWp
Site Soenen, Hooglede [Belgium]
4 030 kWp
Site Rodiers, Herk-de-Stad [Belgium]
252 kWp
Site Vanderpoorten, Kessel-Lo [Belgium]
321 kWp
Site De Condé, Hasselt [Belgium]
203 kWp

7. The purpose of the PID Scan
was to examine the extent to
which the PV installation of
Meubelen Verhaegen (Belgium)
could be subject to PID. The
site was installed in 2011 and
includes a rooftop installation
with a capacity of 688 kWp.
Based on a number of parameters,
such as the performance Ratio (PR)
and the distribution of the relative
yields and string voltages of the
inverters, the presence of PID could
be detected. A test was set up on-site
in which inverters were equipped with
Pidbull devices selected on high,
mediocre and poor permance.
PID SCAN
ACCOMPANIED BY ENCON[independent engineering agency]
The data of the monitoring
system - relative yields of the
inverters (kWh/kWp) - was
used to compare the period
before and after installing
Pidbull technology.
This analysis shows that Pidbull
resulted in an increased production of
all tested inverters. The increase is
most spectacular in the production of
the worst performing inverters (+ 20%).
But even the high-performance
inverters have a strong increase of
+ 10%. This result was already achieved
after 25 days. The increase will
continue until all inverters have again
reached the maximum level, taking into
account normal degradation due to
ageing.
RESULTS OF THE PID SCAN

8. MORE INFO
ADDRESS
EDISON ENERGY GROUP
Kempische Steenweg 311 bus 2.11
3500 Hasselt
Belgium
CALL US
Tel: +32 (0)11 35 30 80
MAIL US
WWW.PIDBULL.COM/EN
info@pidbull.com