Inverters and Energy Storage Solutions

About Us Focus on developing and producing solar inverters and monitoring products. 300 employees, over 100 R&D centre staff and 50 patents 5 offices worldwide: Suzhou (China), Flensburg (Germany), Melbourne (Australia), London (UK), Utrecht (Netherlands) Listed on the NEEQ (China) Stock Exchange on 25th December 2015

JXT Group is one of our main shareholders, a company with world-class design and manufacturing capability, one of the main component suppliers of Apple and Samsung mobile devices.

World Leading Components Used

Global Sites – GoodWe Group London Utrecht Beijing Office Rome San Francisco Suzhou HQ Tokyo Mexico City Shenzhen Office Bangkok HQ & Office Service Centre Johannesburg Melbourne Warehouse Buenos Aires Office Planned Service Centre Scheduled

NS Series 1.0kW 1.5kW 2.0kW 2.5kW 3.0kW Smart design, low noise More than ten special safety measurements WiFi/RS485 for option IP65 suitable for rigorous circumstances Lowest start-up voltage at 80V Wide rage of MPPT voltage Integrated design, lighter than similar products Large-scale residential installation

SS Series 3.6kW 4.0kW 4.6kW Photon test “Double A” User-friendly 4”LCD screen Smart design, low noise More than ten special safety measurements WiFi /RS485 as options IP65 suitable for rigorous circumstances

DS Series 3.6kW 4.2kW 4.6kW Photon test “Double A” User-friendly 4”LCD screen Smart design, low noise More than ten special safety measurements WiFi /RS485 for option IP65 suitable for rigorous circumstances

Hybrid Solar Inverter ——ES 3.6kW 4.6kW Innovation for solar PV Charge controller and inverter integrated Intelligent battery management function Capable of being grid-interactive or grid-independent Compatible with both lead-acid and Li-Ion batteries Suitable for all kinds of grid environments

Dual-MPPT Three-Phase——SDT 4.0kW 5.0kW 6.0kW Maximum efficiency up to 97.8%, European efficiency up to 96.7% Advanced topology and superior components Wide range of voltage, long power generation time Smart design, low noise Provide RS485,WiFi and GPRS monitoring modes, suitable for various distribution generation environments IP65 dust-proof and water-proof rating, 45 ℃ full-load output, real power adjustment

Dual-MPPT Three-Phase——DT The best choice for distribution generation Maximum efficiency up to 98.4%, European efficiency up to 98.1%, Photon test “Double A”, one of the TOP inverters in the world Advanced topology and superior components, wide range of voltage, long power generation time Durable aluminum-magnesium alloy chassis, 20% lighter than iron materials, up to 10% lower cost of installation and maintenance Provide RS485,WiFi and GPRS monitoring modes, suitable for all kinds of distribution generation environment IP65 whole machine proof dating, IP68 fan proof rating Hundreds of global commercial projects, the most established model for domestic/commercial distribution application 10kW 12kW 15kW 17kW 20kW 25kW

Dual-MPPT Three-Phase——DT 30kW The best choice for distribution generation Maximum efficiency up to 98.5%, European efficiency up to 98.2%, leading efficiency performance Applied to 480V Grid, reducing 30% AC transmission losses Design with no N-wire, reducing 20% investment on AC wires ZVRT: Zero Voltage Ride Through Excellent design in heat-dissipation, lower temperature and longer life span Fan with highest protection class of IP68, absolutely water-proof, dust-proof and salt/fog-proof Advanced design in power density, miniaturisation and light weight make installation very easy

BP Series 2.5kW Higher self-consumption ratio Suitable for all on-grid single-phase inverters Integrated BMS communication Battery with 48V voltage, secure and reliable Easy access to grid-tied system RS485/CAN/WiFi Adopting advanced materials and mechanical design, suitable for harsh working conditions with IP65 protection class Fan-less design Integrated design, leading to light weight

Energy Storage Products Hybrid Inverter GW5048D-ES GW3648D-ES Retrofit Inverter Unit 2.5kW Batteries Hoppecke Pylon LG-CHem

Hybrid ES Inverters Key features Grid-interactive or grid-independent Compatible with both Lead-acid and Li-Ion battery Charge controller and inverter integrated Intelligent battery management function Automatic back-up power supply App controlled Data monitoring on portal and Apps

Simple block diagram of hybrid inverter

ES System Development Background Traditional Energy Storage Solutions: Common AC BUS system comprises the following additional equipment: BAT, EMS, Charge-Discharge Controller and Meter. BMS

ES System Development Background The GoodWe Solution: Common PV BUS system, which is compatible with most inverters in the market, also with lower cost, higher efficiency and easy installation. We introduce you GoodWe ES series inverter. BMS

New Product Features 01 02 Hybrid Hybrid 03 04 Hybrid Hybrid APP Control Check the status at anytime & anywhere Anti-Reverse Current Function Limit the power export to grid 01 02 Hybrid Hybrid 03 04 Hybrid Hybrid BMS Can work with any brand of lithium or lead/acid batteries Back-Up Output Can work when grid is off

Charge-Discharge Setting Booting-Up Process Inverter Switch on AC Run EzManage Configure Regulation Synchronize Time Battery Parameters Advanced Setting Charge-Discharge Setting Overview Parameters WiFi Configuration Switch on PV Switch on Battery Normal

EzManage Application Two basic modes of operation Installer – for configuration End user – view only

Simple Battery Sizing Calculation Battery Capacity (Ah) = Load demand at night (Ah)¹ Maximum Depth of Discharge (%)² Load demand at night = Total power consumed at night 48V³ (2) The maximum depth of discharge is the percentage of the batteries capacity that can be discharged without causing harm to the life of the battery. The DOD varies from brand and model. (3) 48V is the battery voltage required by the Hybrid inverter.

Simple Battery Sizing Example If the power used at night is 4kWh, and the depth of discharge is 80%, the battery capacity (Ah) will be … Load demand at night = 4000/48 = 83 Therefore, Battery capacity = 83/80% = 104Ah This means 2 x 50Ah batteries almost provide required power; 3 batteries would be more than enough.

Comparison of ES and Grid-tied Inverter

Portal Registration and Access

ES system station overview Booting-Up Process ES system station overview Once logged in you can see how the system is performing and this slide shows the performance of a system from a few days ago. The check boxes at the top show PV Power, Grid Power, Load power Battery Power and SOC% and each graph can be switch on and off so you can see each individually.

Station Report In this slide I will introduce each performance parameter

Condition: PV ON; Peak Generation Six Work Mode Mode 1 Condition: PV ON; Peak Generation Solar generation will firstly support the load, secondly it will charge the battery and finally export to the grid or draw from the grid if the load demands more energy. The next 6 slides show the behaviour of the system in 6 scenarios. This first slide reflects what was happening in the previous slide where all the PV energy was being used, the battery supported the load and more energy from the grid was required.

Six Work Mode Mode 2 Condition: Grid is off Solar generation will first support the load connected to back-up side. If more energy is generated, it will be used to charge the battery.

Six Work Mode Mode 3 Condition: No Battery Solar generation will first support the load, excess power generation will be exported to the grid. If generation level is too low, power will be imported from the grid.

Six Work Mode Mode 4 Condition: Night-time ES inverter will discharge the battery to support the load. If battery is not enough, the rest of the power will be supplied from the grid.

Six Work Mode Mode 5 Condition: Nighttime, grid is off ES inverter will discharge the battery to support the load.

Condition: Night-time; UPS usage Six Work Mode Mode 6 Condition: Night-time; UPS usage If the customer wants to use the system as UPS, the inverter can also be set to charge the battery by grid. If you want you can charge the battery from the grid at night to ensure the battery remains charged

Benefits of battery storage – Grid savings only Scenario 1: On-grid 4kW System installed in 2016 generating 3400kWh, electricity cost of 15.0p/kWh and RPI and energy at 5%. Self-consumption of generated PV assume to be 60%, increase consumption by 20% with battery. System description   Savings Savings without battery £9,917.75 Savings with battery £3,305.92 Total savings £13,223.67 % increase saving 33.33%

Benefits of battery storage – Grid savings only Scenario 2: On-grid 4kW System installed in 2016 generating 3400kWh, electricity cost of 15.0p/kWh and RPI and energy at 5%. Self-consumption of generated PV assume to be 20%, increase consumption by 60% with battery. System description   Savings Savings without battery £3,305.92 Savings with battery £9,917.75 Total savings £13,223.67 % increase saving 300.00%

Warranty & Service ST ANDARD WARRANTY (exclude China domestic market) GOODWE NS SS DS DT ES series inverters come standard with a manufacturer’s warranty of 66 months (5.5 years) from the date of production from JIANGSU GOODWE POWER SUPPLY TECHNOLOGY Co., Ltd (hereinafter referred to as GOODWE). The accessory products include Antenna, EzConverter, EzMeter and EzLogger come standard with a manufacturer’s warranty of 30 months (2.5 years) from the date of manufacturing from GOODWE. For inverters (GOODWE NS SS DS DT ES series), and the accessory products, the warranty can be extended within 24months (2 years) from the date of manufacturing. Please obtain the warranty extension price list form GOODWE Sales for further information.

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