CanadianSolar CSI-3K-S22002-E Single Phase String Inverter User Manual

CanadianSolar CSI-3K-S22002-E Single Phase String Inverter Introduction

General Information

This manual provides important safety information on relating to the installation, maintenance and usage of single phase PV inverters. Both users and professional installers must read these guidelines carefully and strictly follow these instructions. Failure to follow these instructions may result in death, serious injury or property damage.
Only qualified professionals and service personnel can do the installation and operation (refer to 62109-1). Installers must inform end-users (consumers) about the aforesaid information accordingly.
This manual is only valid for the PV inverter types, CSI-3K-S22002-E, CSI-3.68K-S22002-E, and CSI-5K-S22002-E produced by CSI Solar Co., Ltd.

User Manual Disclaimer

The information contained in this manual is subject to change by CSI Solar Co., Ltd. without prior notice. CSI Solar Co., Ltd. gives no warranty of any kind whatsoever, either explicitly or implicitly, with respect to the information contained herein.
In the event of any inconsistency among different language versions of this document, the English version shall prevail. Please refer to our product lists and documents published on our website at: http://www.csisolar.com as these lists are updated on a regular basis.

Limitation of Liability

CSI Solar Co., Ltd. shall not be held responsible for damages of any kind, including-without limitation-bodily harm, injury or damage to property, in connection with handling PV inverters, system installation, or compliance or non-compliance with the instructions set forth in this manual.

Target Group
This document is intended for installers and users.

Symbol Conventions
The symbols that may be found in this document or on the product packaging are defined as follows.

Warnings in the manual
A warning describes a hazard to equipment or personnel. It calls attention to procedure or practice.

Safety Instruction

General Safety
The Inverter has been designed and tested strictly according to the international safety codes, however, certain safety precautions must be observed when installing and operating this inverter. Read and follow all the instructions, cautions and warnings in this user manual carefully before any work and keep this manual for future reference.

Notice for Use

Personnel requirements
Only qualified personnel are allowed to install and commission the inverter, they should:

1. Receive professional training and get the authorization.
2. Be familiar with the safety specification about the electrical system.
3. Be familiar with the local requirements, rules and regulations.
4. Understand the composition and working principles of the grid-tied PV system.

Operation requirements

Use the inverter in installations that meet the following specifications only.

1. Permanent installation is required.
2. The electrical installation must meet all the applications and standards.
3. The inverter must be installed according to the instructions stated in this manual.
4. The inverter must be installed according to the correct technical specifications.
5. To startup the inverter, the Grid Main Switch (AC) must be switched on, before the solar panel’s DC solar switched on. To stop the inverter, the Grid Supply Main Switch (AC) must be switched off before the solar panel’s DC isolator switched off.

Protecting labels

1. Do not scrawl or damage any labels on the inverter enclosure because these labels contain important information about safe operation.
2. Do not scrawl or damage the nameplate on the inverter enclosure. This nameplate contains important product information.

Product Overview

Product Introduction

The inverters are single-phase grid-connected PV string inverters without transformers, which can convert the DC power from the photovoltaic (PV) strings into alternating current (AC) power, and feed the power into the power grid. This document involves the following product models:
CSI-3K-S22002-E, CSI-3.68K-S22002-E, and CSI-5K-S22002-E.
PV grid-connected systems mainly include PV modules, DC switches, inverters, AC switches, electricity meters, and the local grid. The PV power system diagram is shown as FIG.3-1.

Appearance

Front view and bottom view

and negative)

| Disconnects the DC current safely. For long term durability do not

use under full load or switch of AC power before.

D| CT/Meter jack| Connects CT or Meter.
E| Waterproof and breathable valve| /
F| Communication port| Connects wireless datalogger (WiFi), RS485.
G| AC receptacle| Jack/Receptacle for AC/grid connection
H| External ground point| /
I| Reserved port| Reserved for other regions, never remove the protection cover.

Product Nameplate

The nameplate provides a unique identification of the inverter (Product type, device-specific characteristics, certificates and approvals). The nameplate is on the left side of the enclosure.

Storage

The following requirements should be met when the inverters need to be stored:

• Do not unpack the inverter.
• Storage temperature: –40°C ~ +70°C.
• Storage humidity: 0% ~ 100%RH (Non-Condensing).
• The warehouse should be clean, well-ventilated, and non-corrosive gas (corrosive or flammable gases), meanwhile it should be accessible all the time.
• No smoking, no illegal use of electricity, and fire.
• When storing inverters, do not stack more than the allowed layers to avoid damage, which number marked on the product packaging.
• Do not tilt the package or place it upside down.
• Regular inspection is required during the storage.
• If the inverter has been stored for more than half a year, it must be checked and tested by professionals before put into use.

Unpackaging and Inspection

Before unpacking the inverter, check the package appearance thoroughly, such as for holes and cracks, and check the inverter model accordingly. If you discover any damage to the packaging which indicates the inverter may have been damaged, or the inverter model is not the one you requested, do not unpack the product and contact your dealer immediately.
After opening the package, check all of the accessories carefully in the carton. If any damage is found or any component is missing, contact your local installer.
Note: For details information about the components, see the packing list document in the packing case.

Installation

Basic Installation Requirements

1. Do not install the inverter on the structures constructed of flammable, thermolabile or explosive materials.
2. The installation surface must be strong enough to bear the inverter’s weight for a long period time. (Please check the inverter’s weight in the product specification of ANNEX B).
3. The inverter is protected to IP65, can be installed indoors and outdoors.
4. The humidity of the installation location should be below 100% without condensation.
5. The ambient temperature should be between -25°C to 60°C.
6. Install at eye-level for easy operation.
7. Do not install the inverter near the television antenna or any other antennas and antenna cables.
8. Ensure the inverter is out of children’s reach.
9. Install inverter at the locations with some cover or protection, to ensure the optimum operation.
10. Do not install in the small closed cabinet where air cannot circulate freely. Do not put any other objects on the inverter, as per FIG.6-2.
11. Comply with the Min. clearance to walls, other inverters, or objects to ensure the installation and maintenance, meanwhile for the good heat dissipation.
12. Install the inverter vertically or at a maximum backward tilted angle of 15 degrees to facilitate heat dissipation, and to ensure that no moisture can penetrate the product.
13. Do not install the inverter outdoors in salt, sulfur or other corrosive areas.
    The inverter would be corroded in salt (i.e. marine environments) area, and the corrosion may cause fire. In salt area refers to the region within 500 meters from the coast.
    Please consult the CSI Solar Co., Ltd. technical support department on the use of inverters in special climates (i.e. salt, sulfur, or ammonia areas) which may affect the product warranty.

Mounting Wall-mounting Bracket

Danger To avoid electrical shock or another injury, please inspect existing electronic or plumbing installations before drilling holes.

Installation steps:

1. Use the wall-mounting bracket as a template and mark the positions of the drill holes, then drill the 4 holes accordingly, as per FIG. 6-6. (Diameter = 11mm, Depth ≥ 55mm）
   Note: The external dimensions (W × H) of inverters are shown as a dashed line in FIG. 6-6.

2. Drill expansion anchors into the corresponding four holes, and then secure the bracket by using screws, as per FIG. 6-7 & FIG. 6-8.

Installing Inverter

Note: It must be ensured that the wall-mounting bracket is properly fixed was accurately mounted fixed to the wall before installing the inverter.
Installation steps:

1. Hang the inverter on wall-mounting bracket. Keep balance during the operation to prevent device damage from colliding with walls or obstacles, as per FIG. 6-9.
2. Use two safety bolts to fix both sides of inverter to ensure the inverter fixed to the wall firmly, as per FIG. 6-10.

Electrical Connection

Safety

Danger: Danger to life due to lethal voltages in the inverter!
Before performing any work on the inverter, must disconnect both AC and DC sides.
Warning: Damage to electronic components may happen due to electrostatic discharge. Take appropriate ESD precautions when replacing and installing the inverter.

Recommended Cables

Note: No cable is supplied.

Meter/CT Connection (Optional)

The inverter has integrated export limitation functionality. To use this function, a power meter or a CT must be installed.
For installation and operation methods, see ANNEX part of meter and CT installation guides.

Wiring PE Cable

To achieve ground protection purpose, the inverter must be connected to the AC grounding conductor of the utility grid via PE cable.

Warning: Because of the transformerless design, the DC positive pole and DC negative pole of PV arrays cannot do grounding.

Note: The PE point at the AC output point is used only as a PE equipotential point, and cannot substitute for the PE point on the enclosure.
Procedure steps:

1. Insert the grounding conductor into the suitable terminal lug and crimp the contact.
2. Fix terminal lug on external ground point by screw M4x10. Torque: 1.4 N.m.

Wiring AC Output

Warning

To ensure the inverter can be safely disconnected with load must install a separate single-phase circuit-breaker or other load disconnection unit for each inverter.
Note: The inverter is equipped with integrated RCM (Residual current operated monitor) and RCD (Residual current protective device). The rated residual current of the circuit breaker must be over 300mA when the AC circuit breaker with RCM function is selected.

Notice

The total capacity of the PV-inverter is more than 3KW and less than or equal 6KW, the inverter’s displacement power factor is adjustable between 0.95 leading to 0.95 lagging, and do not need external SPI. The total capacity of the PV-inverter is more than 6KW, the inverter’s displacement power factor is adjustable between 0.9 leading to 0.9 lagging, meanwhile, needs external SPI.

Install an independent two-pole circuit breaker at the output side of the inverter for protection, the recommended AC circuit-breaker specifications are as follows:

Recommend maximum AC cable length:

AC Three-core cable:
The grid connection is established by using three-core wire (L, N, and PE, as per FIG. 7-3). Components of AC connector:
The AC connector is made of four components: pressure nut, sealing ring, threaded sleeve, plug.

AC connectors have two types, EXCEEDCONN type or DEVALAN type, and follow-up procedure:

1. Strip the cable’s jacket, and then adjust the relative length of L, N and PE cables, to make the length of PE cable is at least 5mm longer than L and N ones, as per FIG. 7-3.

2. When using flexible cables, the conductor must be connected with suitable core end ferrules according to DIN 46228-4, as per FIG. 7-4.
   Insert the L, N, and PE conductors into the corresponding pins of the plug (as per FIG. 7-5), then tighten the fastening screws by a screwdriver to fix the conductors firmly.
   EXCEEDCONN type (Torque 0.8N.m）
   DEVALAN type (Torque 1.4N.m）:

3. Push the threaded sleeve into the plug, and screw the press nut tightly.

4. Finally, insert the AC connector into the corresponding AC receptacle on the inverter. Pay attention to the polarities to make sure the correct assembling.

Wiring DC Input
Note: The DC connectors are in paired (negative and positive ones). Pay attention to the polarities when assembling.

Requirement for DC input

The single-phase inverters are equipped with one or two MPP trackers. Requirements for PV modules strings:

1. Same type PV modules for each string.
2. The power, voltage (startup and open-circuit voltage) and operating current of each PV strings must meet the allowable value of the inverter.
   Note: Consider the temperature coefficient of the PV modules. Check the inverter specification in section ANNEX B.

Wiring

Procedure steps

1. Strip the insulation of the cable to about 7.5mm with the wire stripper tool. Note do not damage the conductors when do the stripping, as per FIG. 7-10.

2. Place the contact around the conductors of the stripped cable, then crimp the contact with wire crimping pliers, as per FIG. 7-11.
   Ensure the conductors are completely wrapped without loosening or damage.

3. Insert the crimped contact pin into the connector back until one click audibly. Pull lightly on the cable to ensure the contact pins of the connectors are engaged. Pay attention to the polarities when assembling.

4. Tighten the nut with a special wrench. Torque: 2.5~2.9 N.m. 

5. Insert the assembled connectors into the bottom terminal of the inverter until one sound click audibly. The locked DC connectors can only be disconnected with special tool.

Connecting PV array (DC input)

Danger

• Ensure the DC switch and AC breaker both are disconnected from the inverter before connect the PV arrays.
• Never connect PV array positive or negative pole to the ground, it could cause serious damages to the inverter.
• Improper operation during the wiring process can cause fatal injury to the operator or unrecoverable damage to the inverter.
• Only qualified personnel can perform the wiring work.

Communication

Communication Mode
Multi-communication patterns for option, RS485 (Built-in module), and WiFi, with the communication port M16.

External WiFi
For more details on installation and operation methods please refer to the WiFi data logger user manual.

Communication scheme:
The inverter supports two networking scenarios to operate, as per FIG. 8-2.

1. Standard Mode: Connect to the internet and operate the inverter through CSI cloud (web or App).
2. Local Mode: Connect and operate the inverter locally without internet.

Note: For the monitoring and local APP information, please refer to documents published on our website at: https://monitoring.csisolar.com/platformSelect.

RS485
Connect the communication port with an RS485-to-usb port converter via RS485 serial line, and then connect this module to PC.

Commissioning Inverter

Electrical Inspection

1. Check PE connections with multi-meter:
   To make sure all the bare metal surfaces of the inverter are grounded.

2. Check DC voltage value:
   Check if the DC voltage of the PV string exceeds the allowable range.

3. Check the polarities of the DC voltage:
   To make sure the DC polarities are correct.

4. Check the ground insulation of PV array with multi-meter:
   Ensure the impedance value of ground insulation is more than 1MOhm.

5. Check all the inverter terminals:
   Ensure all unused terminals of the inverter are properly sealed with protection covers.

6. Do not remove protective covers of all the terminals before wires are connected, such as DC, AC, CT/Meter and WiFi terminals. Otherwise, the IP rating will be affected.

Mechanical Inspection

1. Ensure the inverter is installed properly, fixed with a Wall-mounting bracket firmly, and the upper cover is installed correctly.
2. Ensure the AC connectors are installed properly and fixed firmly.
3. Ensure the dust covers are sealed reliably which are used for the empty DC connectors.
4. Ensure all the cables are connected effectively, fixed firmly, and no visible damages to the insulation layers.

Start-UP Inverter

After electrical and mechanical inspections, first turn on the AC main switch/breaker, then turn on the DC switch. The inverter will start automatically when the DC input voltage meets the performance requirement of the utility grid. Normally there will be three statuses during the operation (refer to the LED indications):

1. Waiting:
   Conditions: The initial DC voltage of the PV strings is greater than the Min. DC input voltage, but is lower than the DC start-up input voltage.
   Inverter cannot start-up normally and cannot feed power into utility grid either.

2. Checking:
   Conditions: The initial voltage of the PV strings exceeds the start-up DC input voltage of the inverter. Meanwhile both the voltage and frequency of the utility grid are normal.
   Inverter will check the feeding conditions immediately. If anything wrong during checking, inverter will switch to the “Fault” mode.

3. Normal:
   Conditions: All the checking results are normal.
   Inverter will switch to “Normal” mode and feed power into utility grid.
   The inverter may turn on and off continuously during the period of low or absent sunlight due to the shortage of power generated by the PV modules. If such fault occurs frequently, please contact the maintenance personnel.

LED Indicators

Switch off

DANGER Never connect or disconnect the DC connectors under load.

Inverter Turn-off steps:

1. Turn off the AC main switch to prevent it from being reactivated.
2. Turn off the DC switch.
3. Check the inverter operating status.
4. Wait until LED indicator has gone out, which indicates the inverter has been shut down.

Daily Maintenance

DANGER

Risk of inverter damage or personal injury due to incorrect service!
Always keep in mind that the inverter is powered by dual sources: PV array and utility grid. Before any service work, observe the following procedure.

1. Disconnect the inverter from the utility grid side first and then PV array;
2. Wait at least 5 minutes after shut down the inverter, for inner capacitors to discharge completely;
3. Verify that no voltage and current existing with appropriate testing devices.

NOTICE

• Risk of inverter damage if it is improperly serviced.
• Use accessories and spare parts approved by the inverter manufacturer only. Never modify the inverter or other components of the inverter. The loss of any or all warranty rights may follow if otherwise.
• Any malfunction that may impair the inverter safety operation must be repaired immediately before the inverter is restarted.
• Inverter contains no customer serviceable parts inside. Please contact local authorized personnel if any service work is required.

Information

Servicing of the device in accordance with the manual should never be undertaken in the absence of proper tools, test equipment or the more recent revision of the manual with has been clearly and thoroughly understood.

System clean

| Check the temperature and dust of the inverter. Clean the inverter enclosure. Check the humidity and dust of the environment.

Meanwhile check whether the filter function of the air inlet is ok.

| Six months to a year (it depends on the dust contents in air.)

Troubleshooting

When the inverter does not operate normally, we recommend the following actions for quick troubleshooting. Please review the error list table carefully.

Warning

The different LED colors and flashing status identify the current operation statuses of the inverter. If the red color is always on, it indicates the inverter fault. Usually the warnings can be cleared through an orderly shutdown / reset or a self-corrective action performed by the inverter.

Errors
Error codes identify a possible equipment fault, or incorrect setting/ configuration. Any and all attempts to correct or clear a fault must be performed by qualified personnel. Typically, the Errors code can be cleared once the cause or fault is removed.
However, some of the (E) codes may cannot be cleared, in this case please contact the dealer or CSI Solar Co., Ltd. to replace a new one.
Errors as indicated in the table below:

2. Check the ambient temperature around the inverter.

F-101

|

High DC input voltage

| 1.   Disconnect the DC switch, remove the DC connector, measure the voltage of the PV string, and check if it exceeds the input-voltage specification of the inverter.

2.   If exceed the specification, re-layout the PV module string.

3.   If not exceed the specification, while the error still exits, please contact Customer Service.

F-103

|

Unconnected grid

| 1. Turn off DC switch, remove AC connector, measure the voltage between fire line and the zero line, then check if it is consistent with the grid- connected specification of inverter.

2. Inconsistent, check if the AC main switch is connected, check if the power supply is normal working.

3. Consistent, connect the AC connector, turn on the DC Switch.

4. If error message still exists, contact Customer service.

F-104| Inverter grid-connected relay fault|

Contact Customer service.

F-105

|

Grid frequency fault

| 1. If power grid frequency returns to normal, the inverter will restore the grid connection automatically.

2. If error message still exists, contact Customer service.

F-106

|

Grid voltage fault

| 1. Turn off DC switch, remove AC connector, measure the voltage between fire line and the zero line, then check if it is consistent with the grid- connected specification of inverter.

2. Inconsistent, check the grid layout.

3. Consistent, connect the AC connector, turn on DC Switch, inverter will restore the grid connection automatically.

4. If error message still exists, contact Customer service.

F-107| DC component over range| 1. Restart inverter.

2. If error message still exists, contact Customer service.

F-108| Current sensor fault| 1. Wait until inverter restores normal work.

2. If error message still exists, contact Customer service.

F-110

|

Leakage current detection unit fault

| 1. Check if there is any PV cable breakage.

2. Check if the PV modules grounding improperly.

3. Restart inverter.

4. If error message still exists, contact Customer service.

F-111|

Leakage current fault

| 1. Check if PV strings grounding properly.

2. If error message still exists, contact Customer service.

F-112

|

DC insulation fault

| 1. Check if inverter grounding properly.

2. Check if the positive and negative poles of PV modules are short out to the PE cable.

3. Wait until inverter restores normal work.

4. If error message still exists, contact Customer service.

F-113| Leakage current detection consistency error (Major)| 1. Restart the inverter.

2. If error message still exists, contact Customer service.

F-114| Frequency detection

consistency error (Major)

|

1. Restart the inverter.

2. If error message still exists, contact Customer service.

F-115| Power grid voltage detection consistency error (Major)
F-116| Leakage current detection consistency error (Minor)
F-117| Frequency detection consistency error (Minor)
F-118| Power grid voltage detection

consistency error (Minor)

F-123| Secondary memory failure|

1. Restart the inverter.

2. If error message still exists, contact Customer service.

F-124| Clock failure
F-125| Internal communication failure
F-129| Main memory failure

Handling the Inverter

Removing Inverter

1. Turn off the inverter as described in section 10 and section 11.
2. Remove all the connection cables from the inverter.
3. Unscrew the fixing screws on both sides of the inverter.
4. Remove the inverter from the bracket.
   Note: Before performing any work, ensure that you are familiar with this document.

Packing Inverter
If possible, use the original packaging, or the packaging that is suitable for the weight and dimensions of the inverter.

Disposing Inverter
Do not dispose the obsolete inverters or accessories together with household waste. Please refer to the disposal regulations.

ANNEX A: Acronyms and Abbreviations

ANNEX B: Specification

Model| CSI-3K-S22002-E| CSI-3.68K-S22002-E| CSI- 5K-S22002-E
---|---|---|---
Input (DC)
Max. DC Input Voltage (V)| 600| 600| 600
Startup DC Input Voltage (V)| 60| 110| 110
MPPT Operating Voltage Range (V)| 60 ~ 500| 100 ~ 550| 100 ~ 550
Rated Input Voltage (V)| 360| 360| 360
Max. Input Current (A)| 12| 12 / 12| 12 / 12
Max. Short-Circuit Current (A)| 15| 15 / 15| 15 / 15
Number of MPP Trackers| 1| 2| 2
Number of DC Inputs| 1| 1 / 1| 1 / 1
Output (AC)
Rated Output Power (W)| 3000| 3680| 5000
AC Grid Connection Type| L / N / PE
AC Nominal Voltage And Range (V)| 220 / 230
AC Nominal Frequency And Range (Hz)| 50 / 60 (±5)
Max. Output Current (A)| 13.6| 16| 21.7
Power Factor(@ Rated Output Power)| > 0.99
Displacement Power Factor| 0.8 leading to 0.8 lagging
Total Harmonic Distortion (THDi)| < 3%
Efficiency
Max. Efficiency| 97.8 %| 97.5 %| 98.0 %
European Efficiency| 97.1 %| 96.8 %| 97.5 %
MPPT Efficiency| 99.9 %| 99.5 %| 99.9 %
Safety & Protection
DC Switch| Integrated
Anti-Islanding Protection| Integrated
DC Reverse-Protection| Integrated
Insulation Monitoring| Integrated
AC Over Voltage Protection| Integrated
AC Over Current Protection| Integrated
AC Short-Circuit Protection| Integrated
Residual Current Protection| Integrated
Overvoltage Class| ll (DC), lll (AC)
General Parameters
Dimensions (W × H × D, mm)| 308 x 357 x 136| 355 x 435 x 158
Net Weight (kg)| 8.2| 13.5
Installation Method| Wall – mounted
DC Connection Type| MC4
AC Connection Type| Connector
Communication| WiFi / RS485
Cooling| Natural convection
Protection Degree| IP65
Operating Ambient Temperature Range (°C)| -25~60 (> 45, derating operation)
Relative Humidity (Non-Condensing)| 0% ~ 100%
Max. Operating Altitude (m)| 4000 (> 3000, derating operation)
Topology| Transformerless
Night Power Consumption (W)| < 1
Safety and EMC| IEC 62109，IEC 61000-6-1, IEC 61000-6-3
Grid Connection Standard| EN50549-1

China – Global Headquarters
CSI Solar Co., Ltd.
199 Lushan Road, SND, Suzhou, Jiangsu, China, 215129
Sales Inquiries Email: sales.emea@csisolar.com Customer Support Email: service.emea@csisolar.com

ANNEX C:CE & RoHS Declaration

Declaration of Conformity
Directive 2014/35/EU (Low Voltage)
Directive 2014/30/EU (EMC)
Directive 2011/65/EU (RoHS)

We (name of the supplier)

Address Landsberger Str. 94, 80339 Munich, Germany

fulfills the requirements of the standards

IEC 62109-1: 2010
IEC 62109-1: 2011
EN 62109-2: 2010
EN 62109-2: 2011
EN 61000-6-1: 2007
EN 61000-6-3: 2007+A1
IEC 61000-6-1: 2005
IEC 61000-6-3: 2006+A1
EN IEC 63000: 2019-05
and therefore corresponds to the regulations of the Directive 2014/35/EU, 2014/30/EU & 2011/65/EU.

CANADIAN SOLAR EMEA GMBH
Landsberger Straße 94, 80339 Munich, Germany

The product was first marked with CE in 2021

Munich, August 11. 2021
Place and Date of Issue

*In the event of any inconsistency among different language versions of this document, the English version shall prevail.

Declaration of Conformity
REACH regulation (EC) No. 1907/2006 

Lead 0.1% (w/w)

Pursuant to Art. 33 of Regulation (EC) No 1907/2006 (the “REACH Regulation”),_we inform you that above PV inverter models contain Substances of Very High Concern (“SVHC”) in a concentration above 0,1% (weight by weight). With regard to this regulation, you are obliged to inform your customers accordingly. Under normal or reasonably foreseeable conditions of use, exposure to the above-detected SVHCs which are contained in our PV inverters can be excluded. However, a release of, and exposure to, above SVHCs can take place (i) when the different components of the PV inverters are disassembled, in particular for recycling purposes, and (ii) in instances of fire. In the instance of fire, please keep away from the fire, and call the local fire brigade. Therefore, recycling and all other types of comparable disassembly of the PV inverters have to be performed by a qualified waste management company, in compliance with national and local waste management regulations.

References

• CSI Solar – Global
• monitoring.csisolar.com/platformSelect

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