Greg

Hi, I'm currently designing a 35 MWp grid-connected solar farm with a 100 MWh Battery Energy Storage System (BESS). The system is configured so that the BESS charges exclusively from the PV array — not from the grid. However, after exporting the hourly data from PVsyst, I noticed that values appear for EFrGrid (energy from the grid). When reviewing the simulation settings, I couldn’t find an option to disable grid import explicitly. Has anyone encountered this issue before? Is there a specific setting or workaround to ensure the simulation fully restricts energy import from the grid? Any guidance would be appreciated. Thank you!

Hi, I'm currently designing a 35 MWp grid-connected solar farm with a 100 MWh Battery Energy Storage System (BESS). The system is configured so that the BESS charges exclusively from the PV array — not from the grid. However, after exporting the hourly data from PVsyst, I noticed that values appear for EFrGrid (energy from the grid). When reviewing the simulation settings, I couldn’t find an option to disable grid import explicitly. Has anyone encountered this issue before? Is there a specific setting or workaround to ensure the simulation fully restricts energy import from the grid? Any guidance would be appreciated. Thank you!