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2 Confidential
Commercial PV projects: Main Drivers
Energy Harvesting
Product Reliability
Simple Installation & Maintenance
Product Flexibility
3 Confidential
String Application - Considerations
• High design flexibility for a wide range of applications
• Ease of installation• BoS Integration (DC combiner)
PRO
• No Panel level MPPT• No panel level monitoring
CONS
4 Confidential
Double MPPT with High-Speed algorithm
String : optimizing energy harvestingDouble MPPT & Scanning Function
Different MPPs to be managed separately for a better energy harvesting
Real “equal & independent MPPTs” for a unique flexibility in designing your own PV field
High Dynamic Efficiency: less than 2 seconds to find the MPP
HarvestingFlexibility
MPPT Scanning Function
Voltage
Power
0 Voc
Real Pmax False Targets
Vmin
Mpp1 Mpp2
Running a preliminary scanning function all over the input voltage range considerably increases the MPPT algortithm’s effectiveness
5 Confidential
String: design flexibility and efficiency
Longer strings = benefits with high-Voc PV modules.
HarvestingFlexibility
Flat efficiency curve
Inverter’s efficiency stays at very high levels on a wide range of Vdc and Pac values. This feature gives you a unique design flexibility for your PV plant
Wide input voltage range andFlat efficiency curve
Operating DC input voltage up to 970V
6 Confidential
String: keeping an eye on reliability
Electrolyte-free technology, no fans and IP65 enclosure
No electrolytic capacitors and fans
Removing two of the main causes of
failures = reliability TRIO = 10 year
warranty
IP65 enclosurewith rear heatsink
The rear heatsink allows performing an
easy maintenance from the front of the
inverter
Reliability Installation & Maintenance
7 Confidential
String: making everything easier
Ease of installation & Maintenance Installation & Maintenance
Installer-friendly wall connection
system
The inverter’s wall connection system has been
designed so that you’ll be able to install your own
product just performing a few easy on-site actions.
8 Confidential
DC – AC Switch
Compliant with ECA/MCS Guide to the Installation of PV
2.1.12.2 Switch Disconnector2.1.12.3 Array Switch Disconnector
Reducing Balance of System Costs
String Fuse Protection
Compliant with ECA/MCS Guide to the Installation of PV
2.1.10 String Fuses2.1.10.1 String fuse Selection
Surge Protection
Compliant with ECA/MCS Guide to the Installation of PV
2.2.6 Surge Protection Measures
Installation & Maintenance
9 Confidential
String: Grid Management
Smart Grid ready
Inverter contributes to grid stability and
control to increase grid quality
Capability to select Active power reduction and
Reactive power regulation
= Smart grid ready
Frequency control
Voltage Control
Power Factor Management
Flexibility
10 Confidential
Class II ProtectionAC + DC Switch
String level monitoring
Basic version
-S2 version
-S2F version
-S2X version
A closer look at TRIOCompactness &
FlexibilityInstallation & Maintenance
11 Confidential
Why Use TRIO?
• High efficiency• Wide input voltage range (up to 1000V)• Double Independent MPPTs• Fast and precise MPP tracking algorithm
High energy harvesting
• Natural Convection Cooling• Electrolyte free (no electrolytic capacitors)• IP65 environmental protection rating
High reliability
• Detachable Wiring Box• Graphic displayFast installation
• Graphic display• Remote connectionEasy to use
• Wide input voltage range (up to 1000V)• 4 different options for the wiring box• 20.0 and 27.6 kW models
Flexible PV plant planning
12 Confidential
Hardware
Balance of System cost reductions - <50kW
~30% reduction in comparison of Inverter(s) + BOS for 20kW-50kW systems.
+ 10 year standard warranty for TRIO
Installation + O+M Install cost reduction - Integral DC + AC Isolator, Fuse combiners + OVP
OPEX (Reduced Maintenance) - Inverter can be replaced simply without qualified staff.
String level monitoring = Preventative O+M
£/W Price
Lower Cost/W
13 Confidential
Lost Energy Detection Improves Performance
• Commercial rooftop system
• 4 years operation with Inverter-level only monitoring.
• Converted to string level monitoring
Before
After
67% PR
82% PR
Harvesting
14 Confidential
• Location: Burgess Hill, Sussex, UK
• Installed: Spring 2012
• Inverters:
• TRIO-20.0-TL-OUTD-S2X• TRIO-27.6-TL-OUTD-S2X
50kWp Roof example
15 Confidential
• Location: Bridgewater, Somerset, UK
• Installed: Summer 2013
• Inverters:
• TRIO-20.0-TL-OUTD-S2X• TRIO-27.6-TL-OUTD-S2X
1MWp Roof Project
16 Confidential
• Location: Crewe, Staffordshire , UK
• Installed: Spring 2013
• Inverters:
• TRIO-20.0-TL-OUTD-S2X• TRIO-27.6-TL-OUTD-S2X
5MWp Roof Project