South Korea s photovoltaic charging pile energy storage application

In Korea, PV systems combined with ESS were previously spotlighted, because the system has been awarded with higher subsidies, multiplied REC (Renewable Energy Certificate) values. However, the systems combining PV and ESS recently suffered from many unspecified fire accidents.

Korean players have been pursuing the technological edge of premium solar cells and modules, incorporating diverse technical approaches such as n-type mono wafer, PERC (Passivated Emitter and Rear Contact) process, half-cell technology and bifacial modules. They are also developing the perovskite-silicon tandem solar cells.

Korea's current policy structure to promote PV deployment can be categorized into four areas: 1) subsidies for installation, 2) incentives, 3) obligatory measures, and 4) infrastructure building.

The cost of PV incentives in Korea is mainly covered by the central and regional governments (tax payers' money). Some costs are covered by the 25 RPS obligators indirectly affecting the electricity prices (Government controls the electricity price).

As the volume of Korean PV market increases, many foreign inverter players like Chinese companies and European makers have been breaking into Korean PV market by establishing sales points and service networks in Korea. On the other hand, Korean government is tightening up the criteria of safety standards related with inverters.

In addition, K-Water can utilize 8% of the dams, which sums up to 3,7 GW. Therefore, the total on-water PV potential in Korea is estimated to be about 9,7 GW. Floating PV gets 1,5 REC multipliers under current RPS scheme and thus is quite attractive to the developers.