——SCU EV PLC Modem Solutions Help Korea’s Companies Seize 70% of Subsidies
The Ministry of Trade, Industry and Energy (MOTIE) of South Korea officially released the “Electric Vehicle Charging Facility Safety Enhancement Plan” in March 2025, which clearly requires:
1. Mandatory installation scope: All new slow EV chargers (AC EV chargers) must integrate power line communication (PLC) modem;
2. Traditional EV charger transformation plan: According to the service life and surrounding fire protection conditions, 500,000 traditional slow EV chargers will be replaced with intelligent control types in stages before 2027;
3 .Double certification: PLC equipment that has passed KC safety certification + ISO 15118 protocol certification can receive government subsidies or access the Korean charging network.
Policy-driven: Slow EV chargers are upgraded to “intelligent control type”, and PLC modem becomes the core technology
The “Intelligent Control EV Charger Popularization Plan” jointly promoted by the Ministry of Environment and the Ministry of Land, Infrastructure and Transport of South Korea clearly states that traditional AC EV chargers will be replaced in stages according to the age of the equipment and the surrounding fire protection environment. One of its core requirements is to be equipped with a PLC module with real-time communication capabilities.
Why is the use of PLC modem mandatory?
Traditional slow EV chargers lack communication modem and cannot obtain battery status data during charging, which may lead to safety hazards such as overcharging, heating, and short circuit. Intelligent control EV chargers use PLC to realize vehicle-charging communication, which can monitor key data such as battery voltage, current, and temperature in real time, and dynamically adjust charging parameters, thereby significantly improving charging safety and battery life.
In addition, PLC communication capabilities are also the basis for advanced functions such as intelligent load management, V2G (vehicle-to-grid interaction), dynamic billing, and remote diagnosis, and are the “nerve center” of intelligent charging.
Subsidy support: Up to 70% government subsidies are available for users equipped with compliant PLC modems
In order to promote the implementation of the policy, the South Korean government has introduced a large number of financial incentives:
| Subsidy Type | Eligible Projects | Support Details |
| New Project Subsidy | Public slow chargers with PLC modem | 50%~70% of construction costs (KC + ISO 15118 dual certification required) |
| Retrofit Subsidy | Replacement of legacy chargers | Up to 3 million KRW/unit (approx. 16,000 RMB) |
| Green Finance Support | Charger manufacturers | Technology upgrade loans at 1.8% interest |
The South Korean government has clearly stated that the number of electric vehicles will be increased to 2 million by 2030, and plans to accelerate the construction of EV chargers. The charging network focuses on high-frequency travel scenarios such as highways, shopping malls, and public parking lots, and strives to achieve a wider electric travel network across the country.
These policies have put forward new standard challenges for local EV charger manufacturers and system integrators, and also released a huge market dividend window.
SCU helps you easily connect to the Korean market
As a global leading smart charging solution provider, SCU follows the trend of the Korean market and launches PLC module solutions that meet local policy requirements, helping EV charger manufacturers quickly complete product upgrades, enjoy government subsidies, and seize the opportunity in the era of smart charging.
SCU PLC modem core advantages:
- Compliant with ISO15118 & DIN70121 international standards
- Compatible with a variety of mainstream EV charger protocols, fast integration.
- Support Plug & Charge, Smart Charging, TLS, Vehicle-to-Grid (V2G), etc.
- Adapt to DC & AC EV chargers, multi-scenario deployment.
SCU PLC modems have been widely used in markets such as Europe and Southeast Asia, and have been verified to have stable performance and reliable communication in multiple Korean cooperative pilots.
Seize the window of intelligent charging transformation and build a green travel network in Korea with SCU
With the Korean government’s large-scale investment and policy guidance in electric vehicles and charging infrastructure, especially the implementation of the “mandatory entry” requirement for PLC modem, local EV charger companies are facing the dual opportunities of “technology upgrade” and “market seizure”.
SCU will continue to deepen its presence in the Korean market, provide highly reliable PLC modem and a complete set of intelligent charging system solutions with local certification and industry standards, and work with local partners to jointly create a safe, efficient and intelligent new electric travel ecosystem.
Korean EV charger manufacturers are welcome to contact us to obtain detailed product information and technical docking services, and work together to layout the future smart slow charging market.