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RES250Relink unveils the new microinverter
Vins di Gennaro
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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 Microinvertero According to CEI 021,VDE and
G83
✓ Installed on each PV moduleo IP67 casingo Though environmental testso Used in the rough Australian
conditions o 25 years life time
MICROINVERTER GATEWAY MONITORING
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RELINK - the microinverter systemMICROINVERTER GATEWAY MONITORING
✓ Micro Inverter on PCBo All components derived from
the military and automotive industries (high performances, reliability and long life)
✓ Digital power controlo High precisiono Fast calculationo Better performances
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RELINK - the microinverter systemMICROINVERTER GATEWAY MONITORING
✓ AC cabling onlyo 2mt. Cable integrated in the
micro invertero It is necessary only a cap and a
final connectoro Available 2 mt cable estentionso Standard Wieland cableso Bridge Cable
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RELINK - the microinverter systemMICROINVERTER GATEWAY MONITORING
✓ Powerful communicationo Communication with Power
Line (PLC) on the AC cableso It does micro inverters
monitoring and configuration
✓ Fast and Easy installationo Connection to a std routero Automatically detects micro
inverters
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RELINK - the microinverter systemMICROINVERTER GATEWAY MONITORING
✓ Monitoring each micro invertero 1 or 2 moduleso Graphs and excel tableso 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 powero Optimizes power for each module / stable over wide
temperature range.
✓ Increased safetyo 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 moduleMAXIMUM 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 systemComponents 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 shadeo more MPPTo 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 conclusionsMICRO 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 yearsEasiness Completely AC
Integrated cablingComplex Design
Safety Low DC voltagesSwitches off at high temp.
DC archs riskFire hazard
Life time cost of micro inverter 50% lower than string
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