Ginlong Technologies

Inverter Design and Manufacturer

Solis Commercial Inverters– Segen

• Company overview

• Factory and Manufacturing overview

• Solis Inverter Range

• Three Phase

• Monitoring

• Solis with Segen

Contents

• 2003 - R&D company started in from UK University Startup – 14 years

• 2005 - Ginlong Technologies founded by Yiming (Jimmy) Wang – 12 Years old

• Born in Shanghai in 1981 • MSc (University of Edinburgh), PhD study (University of Bristol) • Committee member of IEC 61400-2 standard • PhD supervisor and invited researcher of Chinese Academy of Sciences (Ningbo) • Distinguished Professor and group leader at Shanghai University of Electric Power • Listed as 4040 by Recharger (40 global renewable energy leader under 40 years)

• Part of the China “The Recruitment Program of 1000 Global Experts” - expert in PV inverter technologies

• 2014 - Beijing NEEQ listed company, stock code: 835481

• 2015 - ~ 25% UK Domestic market share

• 2017 - Grown to International Business shipping to all continents. Team of 600.

• Renowned R&D team and government authorized research lab

• Over 50 world class engineers from different countries

• 2017 - Shipments estimated to exceed 3GW

Company Overview

• One of the earliest manufacturers of grid tie inverters in the world

• Over 12 years of design and supply history • Second company to achieve UK G83 certification in 2006 • First Chinese company to achieve UL1741 certification in 2009 • Second Chinese company to achieve AS4777/AS 3100 certification in 2009

• Bankability

• Beijing NEEQ listed company, stock code: 835481 • Debt Ratio：<30% • VDE and Kiwa third party factory audit reports available • OST, DNV-GL bankability report available • SolarIF warranty insurance, Chubb liability insurance • Bankable by Bank of America, JP Morgan, etc • Major project developer white listed (e.g. Lightsource, REI, etc.) • IPO pending

Company Overview

Global Certificates

CE , IEC62109-1/-2, VDE0126-1-1/A1, VDE N4105, EN50438, RD1699, C10/C11, G83/2, IEC62116, IEC61727

UL1741, UL1998, UL1699B, IEEE1547, CAN/CSA C22.2 107.1-1, FCC

AS3100, AS4777.2/.3, C-Tick

• World leading partners -

• Segen –UK No. 1 PV distributor • Sunrun– USA Top 2 Residential PV installer • CED – USA No. 1 PV distributor • Costco – World top supermarket • True Green Capital – US top PV project investor • AGL Energy – Australia Top 3 National Utility Company • Powereark – Australian No. 1 PV distributor • Eurosolar – Australian No. 1 PV installer • Lightsource –UK No. 1 PV project developer (World No. 2 PV project develop) • Edmundson – Leading UK Electrical wholesaler • RWE Essent – Leading utility supplier - Holland • Libra – Netherlands No.1 PV distributor • Carbomat – Belgium No. 1 PV distributor • Micromax – Indian No. 1 mobile phone provider • SolarDepot and ExelSolar – Mexico Top 3 PV distributors

• Worldwide support offices

• China, USA(2010), Australia (2010), UK (2013) ,Central America (2013), Europe (2014)

Company Overview - Global Network

Solis Select Clients - China Solis Clients

Factory Overview

• Dedicated inverter production facility. Relocated in 2008 – Large investment in high quality manufacturing equipment and also acquired local land.

• 400,000sqft facility – employs > 600 people

• ISO 9001:2008 and ISO 14001:2004 certified • Production currently @ 20,000 inverters per month

• 2016 Deliveries 1GW

• 2017 Forecast – 3GW - 2GW already shipped

• In-house full manufacturing process – R+D, Manufacture, Q/C

Factory Overview

•Unique – Complete full-chain design, manufacture and supply

•Adopt Vertical Integrated strategy to ensure quality and control cost.

•In-house manufacturing from SMT (surface mounting technology), wave soldering and protective coating to the final assembly and duration testing of inverters

•Invested in advanced equipment and automation for consistent product quality and scalable production capacity

•Fully audited and certified

•Directly Sourced High Quality Components – Critical

Manufacturing Introduction

High Quality Components

Purchase directly from manufacturer

Long life time and high temperature range type

At least 20% design margin for the crucial components

SMT Board Production

Wave Soldiering

PCB Protective Coating

Assembly Line

QC + Duration Testing

Quality Control Introduction

Rigorous testing prior to product sign off and dispatch 360 Unit Test station - 12hr duration testing before dispatch = (2hrs @ 50deg/ 10hrs @ 40deg)

Reliability Testing

• Low air density testing

• Input voltage shock testing

• UV testing

• Salt spaying testing

• Confined space testing

• Dusting testing

• Rainfall test in high temperature

• Extreme thermal shock testing ( 1500 cycles, -40 ℃ to 70 ℃)

• Ice testing

• Extreme site testing (High salty area, dessert, high altitude, rainforest)

Solis PV Inverter Range 0.7- 70kW

Solis Inverter Range

Solis 1P 4G Solis 3ph (6-15K) Solis MINI 4G Solis 3ph (20-30K) Solis 3ph (40-70K)

Power 0.7K 1K 1.5K 2.5K 3.6K 6K 10K 15K 20K 25K 30K 36K 40K 50K 60K 70K

1ph Mini 4G Series (1MPPT)

1ph 4G Series (2MPPT)

3ph Series (400V AC)

3ph HV series (480V AC)

6kW – 15kW 20kw – 33kW

36kW – 40kW

40kW – 50kW

Solis Range at a Glance

50kW – 70kW

2.5kW - 6kW

700w – 3600w

• All New Solis 4G (fourth generation) Mini and Single Phase Range • All New Design – Smaller, Lighter and Smarter • All updated technology – Same price point • MINI - Single MPPT models - 700w to 3600W – New 3000+3600W models • 1P - Dual MPPT models – new 6kW – 10kW models • Built-in Export Power Management (EPM) (with CT clamp) (future proof; flexibility where DNO

issues) – upto 6kW • High Frequency Switching @ 30KHz (Which means the inverter can act more quickly, while being

smaller, and is generally more efficient) • Fifth Generation Infineon IGBT technology - Improves the efficiency by 0.5-0.8% • Latest Texas Instruments TI2806 DSP Chip – Reduces CPU processing speed. PMW resolution

increased x 1.5 • All New Heat Sync design – Lower operating temperatures • Smaller/ Low weight – Mini physically smaller - MINI-3600 single tracker -7.7kg

1P - Smaller - 3.6 dual tracker - 11kg down from 14.5kw – (therefore easier to install/handle)

Product Overview – 4G Update

Solis Three Phase – (6–15K) Range - 6kW, 10kW, 15kW Dual MPPT G59/3 Certified G83/2 +1 available for 6/10kW Compact and lightweight – only 27kg Monitoring available

Solis Three Phase 6-15K

Product Overview – Solis 3PH

Solis Three Phase 20-40K Range - 20kW, 25kW, 30kW, 33kW, 40kW Quad MPPT Integrated DC Isolator 7” Display Compact and lightweight – only 58kg! G59/3 Certified Monitoring available

Product Overview – Solis 3PH

Solis Three Phase 20 – 40kW

Solis Three Phase 40-70K Range - 40kW, 50kW, 60kW, 70kW 40-50K – 400v 60-70K - 500v high grid voltage Large Commercial / Utility scale projects Integrated DC Isolator Compact and lightweight –68kg! G59/3 Certified Monitoring available

Product Overview – Solis 3PH

Solis Three Phase 40 – 70kW

① DC Terminal ② Reserved ③ DC Switch Optional ④ COM1 Port 4 PIN ⑤ AC Connection ⑥ Earth point

④

①

② ③

⑥

⑤

Three Phase Inverter 6-15K

① DC Terminal ② 4 Pin COM Port ③ AC Terminal ④ Reserved ⑤ Reserved ⑥ DC Switch (Optional) ⑦ RJ45 Com Port

④ ①

⑦

② ③

⑥

⑤

Three Phase Inverter 20-40K

① DC Terminal ② 4 Pin COM Port ③ AC Terminal ④ Reserved ⑤ Reserved ⑥ DC Switch (Optional) ⑦ RJ45 Com Port

④ ①

⑦

② ③

⑥

⑤

Three Phase Inverter 40-70K

AC Connection Sample

20kW – 40kW AC Connection terminal block

50kW – 70kW AC Connection terminal block

6kW – 15kW – Weiland plug provided

Inverter Display

Two line display for inverter models 6kW – 15kW & 50kW – 70kW

7” color display for inverter models 20kW- 40kW

Advanced Settings Password - 0010

MONITORING

•Compatible with entire Solis range

•Combine multiple units for mutli-installs

•Free Web/App options

•Installer Level logins

•Modbus

Solis DLS Solis DLB

Data logger product detail

Solis Web Server

Data Logging Stick WIFI

Data Logging Stick GPRS

Data Logging Stick LAN

Data Logging BOX GPRS

Data Logging BOX - DLB Data Logging STICK - DLS

Data Logging BOX WIFI

Data Logging Stick - WIFI

www.ginlongmonitoring.com

Data Logging Stick - LAN

www.ginlongmonitoring.com

Data Logging Stick - GPRS

• Customer need to Buy SIM card to enable the data communication with cloud www.ginlongmonitoring.com • For small size plant with 1 inverter this an good economical solution for monitoring

www.ginlongmonitoring.com

Data Logging BOX WIFI

Data Logging Box - WIFI

RS485 wire connection with data logger – MAX 10 Inverters

www.ginlongmonitoring.com

Data Logging BOX GPRS

Data Logging Box - GPRS

www.ginlongmonitoring.com

GPRS BOX via SIM card data connection will be enabled and cloud based monitoring can be done

RS485 wire connection with data logger MAX 10 devices only possible.

Third Party Data logger via Modbus

• All three phase Solis inverters types 6kW – 70kW can be communicate via serial Modbus communication. • For large commercial mounted plants customer can use with any third party data logger who accept Modbus data over serial communication (RS485).

•Compatible with SolarLog

•Protocols available

RS485 connection via standard (RJ45) connectors

RS485 connection via 4 pin port

Daisy Chain Linking

• 6K – 15K – COM1 Only – 4 PIN

• 20K – 70K – COM1, 2 and 3 4 PIN and RJ45

RS485 connection via standard (RJ45) connectors

RS485 connection via 4 pin port

Product Overview – WIFI Web Interface

Data Logger registration – www.ginlongmonitoring.com

Product Overview – WIFI APP Interface

New Products 2018

Solis Hybrid

Solis Rapid Shutdown (US)

Solis Export Manager

Solis Inverters now on Eiffel Tower

99MW SePiaoTu Photovoltaic Power Generation Project in China. The SePiaoTu photovoltaic power generation project covers 4200 acres, with installed capacity of 99 megawatts, the total project investment exceeded 700 million Yuan. The project has required construction of 52 new supply towers and a new double supply line - 18.35km in total. The tower foundations started September 2016, early 2017 saw the main electrical construction, and March 2017 saw the on-site sub-station beginning finalised. The park has two 50,000 kVA main transformers, single bus wiring, 110 kV outlet with 1 supply back. Annual power generation is expected to reach about 110m kWh.

Solis Inverters – Aquaculture Park 99W

Solis Inverters – Volkswagen 55MW

Solis Inverters – 30MW

• Solis String Inverter range: 0.7kW – 70kW – 5 Families

– SOLIS MINI 4G – 0.7kW – 3.6kW – SOLIS 1P 4G - 2.5kW – 10kW (All Dual/3 MPPT) – SOLIS Three Phase - 6kw – 15kW – SOLIS Three Phase - 20kw – 30kW (Quad MPPT) – SOLIS Three Phase - 40kw – 70kW (Quad MPPT)

• Dual DSP/CPU Transformer-less design

• Wide input voltage range, flexible installation of panels in each string • Dual MPPT on the inverters > 2.5kW • 4 MPPT on >20kW

• Small, lightweight, aesthetically pleasing cases allowing for easy install in domestic environments

• Maximum efficiency >98.8% (Solis-40K-HV)

• IP65 rated for external installation, No FAN up to 30kW

• G83/1 and G59/3 Certification on ALL models for flexible configurations (NI)

• Sizing tool available for installers at www.ginlong.com

Product Overview

Power Up the inverter LED Indicates： POWER DC Power ON/Off OPERATION Blinking means checking time, Solid means generating ALARM Fault Light

Keys： ESC UP DOWN ENTER

Solis Mini 4G

Solis MINI 4G Solis Mini - 0.7kW, 1kW, 1.5kW, 2kW, 2.5kW, 3kW, 3.6kW Smallest Solis - Compact and lightweight design Ultra low startup voltage – MPPT from 50v – 2 panel installation. High frequency switching technology EPM – export power management G83/2 certified IP65 certified for external installations Solis Wifi compatible

Product Overview – Solis MINI

Solis Single Phase 4G Dual MPPT – 2.5 – 6kW – 11.5kgs Three MPPT – 7- 10kW – 18kgs Wide voltage range enables flexible string configurations – i.e. 4/12 panel configurations Compact and lightweight – 14kg G83/2 Certified Solis Wifi compatible Solis 4G Single Phase

Product Overview – Solis 1P 4G

Production Process Flow Chart

Inverter Topology

Advantages

Safety protection function

Boost circuit

Inverter circuit

• Redundant control • ISO, GFCI, AFCI, PV

over voltage, PV reverse protection…

• Low voltage start up (Get more power one day)

• Fast MPP response

• Great EMC performance

• High efficiency, low temperature rise

Static MPP Efficiency

• Accurate current sampling in low output power condition and cross the full voltage range

Dynamical MPP Efficiency

• Problem: Efficiency lost when MPP curve change

• Solution: New calculation algorithm to achieve much shorter response time.

Conversion Efficiency

HALT and HASS

• HALT: Find the weakness of EUT in short time, optimize design.

• HASS Screen the mass production. Find the defect of product caused by design,

manufacturing or material.

HALT and HASS Equipments

Temperature and humidity chamber Vibration platform

HALT Methods

Cold step stress

Temperature decrease from -20℃ by step of 10℃, each step lasts for 1 hour.

Hot step stress

Temperature increase from 60℃ by step of 10℃, each step lasts for 1 hour.

HALT Methods

Thermal shock test

Temperature cycling from -40℃ to 110℃, each temperature stage last for 1 hour.

Vibration step stress

Accelerated speed increase from 5G by step of 5G, each stage last for 1 hour.

Thermal shock and vibration combined test

HALT Result

Cold step stress: Temperature reduce to -40 ℃, EUT works normally.

Hot step stress1: Temperature increase to 50℃, EUT output power reduce to 40% Temperature increase to 60℃, EUT output power reduce to 0. Temperature increase to 120℃, EUT work normally.

Hot step stress2: Remove thermal sensor, EUT work with full load, until temperature to 100℃ EUT shutdown Analyze: Boost diode (IXYS DSEI30) is broken. Because its temperature range is 150 ℃ Solution: Change to higher range diode(APT30DQ60B) which temperature range is 175℃ Verification: Repeat Hot step stress2, EUT failed when the temperature rise to 120 ℃

Thermal shock: From thermal shock -40 ℃ to 110 ℃, 5 cycles, EUT works normally.

Vibration stress: Accelerated speed increase from 5G to 40G, EUT works normally.