RELINK presents new smart Photovoltaic micro inverter RES250

1. RES250
Relink unveils the new
microinverter
Vins di Gennaro

2. 2
RELINK - the company
✓ Founded 2013 in Malta to develop an innovative range of Energy
Storage systems combined with Micro Inverters co-developed
with a primary technology provider of PV conversion.
✓ RELINK relies on the wide and strong skills of its founders in the
Energy and Renewables segments, in photovoltaic since 2007.
✓ RELINK has offices in:
✓ Malta
✓ Germany
✓ Melbourne foreseen in 2016

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RELINK - micro inverter technology
✓ The unique RELINK technology has been developed with a
partnership with a world leader of Energy Conversion and
the former R&D manager of a PV inverter leader.
✓ The RELINK micro inverters optimize the energy output of
a PV module converting in the most efficient way the DC
power in AC power available to the electric grid.
✓ The RELINK micro inverters offer an impressive value
proposition for the PV systems.

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RELINK - microinverter product range
✓ Micro inverter: compact, reliable and convenient
units Installed in the back of PV modules.
✓ Single micro inverter : S240W
✓ Duo micro inverter: 600W in Q1-16
✓ Cables and connectors
✓ PLC Gateway (power line)
✓ Monitoring system: offer the possibility to monitor
each PV module (not possible with string inverters)
✓ Accessible via PC and mobile apparatus.
✓ Warranty: all products with 10 years warranty.
✓ 20 years extention available

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RELINK - a complete system
Gateway
Monitoring
Micro Inverter

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RELINK - the microinverter system
✓ Single and Duo
Microinverter
o According to CEI 021,VDE and
G83
✓ Installed on each PV module
o IP67 casing
o Though environmental tests
o Used in the rough Australian
conditions
o 25 years life time
MICROINVERTER GATEWAY MONITORING

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RELINK - the microinverter system
MICROINVERTER GATEWAY MONITORING
✓ Micro Inverter on PCB
o All components derived from
the military and automotive
industries (high performances,
reliability and long life)
✓ Digital power control
o High precision
o Fast calculation
o Better performances

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RELINK - the microinverter system
MICROINVERTER GATEWAY MONITORING
✓ AC cabling only
o 2mt. Cable integrated in the
micro inverter
o It is necessary only a cap and a
final connector
o Available 2 mt cable estentions
o Standard Wieland cables
o Bridge Cable

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RELINK - the microinverter system
MICROINVERTER GATEWAY MONITORING
✓ Powerful communication
o Communication with Power
Line (PLC) on the AC cables
o It does micro inverters
monitoring and configuration
✓ Fast and Easy installation
o Connection to a std router
o Automatically detects micro
inverters

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RELINK - the microinverter system
MICROINVERTER GATEWAY MONITORING
✓ Monitoring each micro
inverter
o 1 or 2 modules
o Graphs and excel tables
o Supports view from PC and
mobile apparatus
✓ Complete reporting and
alarms

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RELINK - microinverter benefits
✓ Longer life time and reliability
o eliminates components that represent main reason of
failure getting a life time of 25 years.
✓ The best output power
o Optimizes power for each module / stable over wide
temperature range.
✓ Increased safety
o Low voltage AC current, no high DC voltages, significant
reduction of fire hazard
✓ Simplified design and installation
o Easy design due to independence of each/couple of
modules, minumum shade impact. No DC cables.
✓ Advanced monitoring systems
o Accessible via Web, smart phone and tablet.
RELINK
Converts each module
MAXIMUM ENERGY

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Micro inverter layout
1 or 2 PV modules - DC side Micro Inverter - AC side

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RELINK - the best convertion system
Components with limited reliability, short life used in string inverters:
✓ Electrolytic Capacitors and opto-isolators.
o the best electrolytic capacitors have an operational duration of about
7.000 hours @ 105°C.
✓ String inverter expeted life time 8 to 10 years.
The RELINK technology has superior performances:
✓ Does not use components with limited life time.
✓ Improves the stability and the Maximum Power Point Tracking (MPPT).
✓ The life time of a RELINK micro inverter is more than 25 years.
o Uses innovative capacitors with operational duration of about 21.000
hours @ 105°C. (3 times more than string inverter)

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RELINK - real case in Australia 2,2kWp
✓ Difficult roof for string inverters
due to double shade.
✓ Professional PV installer should
not install a string inverter in
this situation.
✓ RELINK micro inverters offer
best solution by reducing shade
impact and maximising energy
output

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RELINK - real case in Australia 2,2kWp
✓ The increased PV
system energy
production ranges from:
✓ Min + 5% w/o shade
o more MPPT
o no mismatch
✓ Up to + 30% with shade
Shaded modules have no impact on
overall performance of the system

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RELINK - real case in Australia 2,2kWp
MICRO
Increased productivity

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Energy Sharing Mode in Offices

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RELINK - micro inverter conclusions
MICRO RELINK STRING
Productivity Precise and constant
(from +5 to +30%)
Variable
Reliability System availability 99,4%
Defects < 0,5%
System availability 85%
Defects > 4%
Duration >25 years 8-10 years
Easiness Completely AC
Integrated cabling
Complex Design
Safety Low DC voltages
Switches off at high temp.
DC archs risk
Fire hazard
Life time cost of micro inverter 50% lower than string