Battery and Capacity Requirements
For the case 50MW/200MWh above, do we need to meet the requirement every day over the PPA term, that every day the plant shall have the capability to inject 200MWh energy to the grid system directly from BESS, even on bad weather days, when the PV system may not generate enough power to ensure full charge of BESS? Is there an inspection & test method and procedure regarding this?
No. The main function of BESS is to firm GEP output to 50% of its capacity, where solar energy in excess of 50% of GEP capacity will be stored in BESS. The GEP solar output, and hence energy above 50% of its capacity, depends on weather conditions, solar irradiance, and panel efficiency - where only this 'excess' is charged and discharged through BESS.
However, the fulfilment of the firming requirement of 50% and 4 hours will be tested and verified during commissioning activities.
Battery and Capacity Requirements
What is the Minimum Capacity Factor (CF) for Battery?
What is the Minimum Capacity Factor (CF) for Battery?
If we declare the firm capacity for the next day, how long the plant need to maintain the firm capacity (i.e 6 hour, 12 hours etc?)
Is a RED permitted to sign FCAS (Frequency Control Ancillary Services) agreements with the grid operator for a qualifying BESS system developed within a solar farm, as well as for standalone projects?
If we declare the firm capacity for the next day, how long the plant need to maintain the firm capacity (i.e 6 hour, 12 hours etc?)