3ZERO

e-Prosumer

*ESS : Energy Storage System

Distributed energy system for microgrid at Yongin Factory is composed of seven independent subsystems

Among 639kW solar installation, 348kW is for electricity sales, 279kW is for on-site consumption, and the rest is for streetlights and electric vehicles.

Among 1.120MWh ESS installation, 500kWh is for PV-integrated ESS, another 500kWh is for load control, 100kWh is for electric vehicles, and 19kWh is for local lighting and others.

Distributed Power System

Distributed Power System Structure

Index Power Supply Structure Description

Solar Energy for Upper Revetment + Product Warehouse + Parking Lot

1. 1. Solar energy generation (230.04kW)
2. 2. ESS 500kWh
3. 3. Electricity sales/REC weighted value 5

Solar Energy for Factory Building + Material Warehouse

1. 1. Solar energy generation (348.16kW)
2. 2. For electricity sales
3. 3. REC weighted value 1.5

Solar Energy for Container ESS

1. 1. ESS (500kWh)
2. 2. For load shifts
3. 3. Peak cut (to control maximum power consumption)

Solar Energy for Green Areas

1. 1. Solar energy generation (48.8kW)
2. 2. For on-site power consumption
3. 3. Government subsidy (KRW 53 million)

Solar Energy for Canopy

1. 1. Solar energy generation (4.5kW)
2. 2. ESS (19kWh)
3. 3. Lobby lighting load (1.7kW)

Solar Energy for Green Areas

1. 1. Solar energy generation + ESS
2. 2. For electric vehicle charging
3. 3. Fast + Normal(PV 6.4kW) charger 2 sets

Solar Energy for Outdoor Security Lights

1. 1. Solar energy generation + electricity from KEMCO + ESS
2. 2. Power for outdoor security lights
3. 3. Installed in 6 locations

e-Prosumer System of Yongin Factory consists of two parts – electricity sales business and on-site power supply system.

Electricity Sales Business (producer) : The factory generates renewable energy from solar system (348kW, REC 1.5) and PV-ESS integrated system (PV 230kW, ESS 500kWh).

On-site Power Supply System (consumer) : For self-consumption, the factory has been installed with solar system (49kW), PV-ESS integrated system (500kWh), ESS (500kWh) for peak cut and load shifts, PV-ESS integrated system (100kWh) to charge electric vehicles, and PV-ESS integrated system (19kWh) for local lighting and streetlights.

Electricity Sales Business (Producer)

In-house Power Consumption (Consumer)

1. ZERO Electricity Cost

The electricity cost of Yongin Factory is ZERO+.

e-Prosumer

2. ZERO Carbon Emissions

Yongin Factory has realized ‘Carbon Neutral Factory’.

Carbon emissions by generation of grid electricity : 382.2 ton/year

Carbon Savings by solar energy generation : 366.3 ton/year

Carbon emissions from Yongin Site : 15.8 ton/year

* Carbon emissions per kWh are 428g, according to Korea Power Exchange.

According to DOE microgrid workshop, ICT, system design and integrated technology occupy 20% or more of the total cost.

Establishment of renewable energy platform and Orange Alliance that will lead the future of the e-Prosumer electricity supply business

SHINSUNG’s M/G Platform

Value Chain