ESS (Energy Storage System) can be divided into off-grid and on-grid type.
Connected to power system (Grid), on-grid type stores surplus power or dispersed generation,
and improves efficiency of energy by supplying stored power when needed. Off-grid type is
effective for isolated island or a place where electrical power systems are unstable, and can generate power by itself.
In case of selling solar energy to power market by connecting with ESS (Energy Storage System),
5.0 of weight is granted to the power transmitted through ESS.
(However, Time that weighted value through ESS is admitted (discharge duration) = 10:00~16:00, Charging outside the hours)
| Power | Energy Type and Standards | Weighted value to supply certificate | |
|---|---|---|---|
| Detailed Standards | Current | Revised 후 | |
| ESS | Connection with wind power generating system | 4.5 (June 2018) | 4.0(2020) |
| Connection with wind power generating system | 5.0 (June 2018) | 4.0(2020) | |
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