Hi. In my part of the world, we have a broad mix of residential houses connected by either of single-phase or 3-phase connections.
For single-phase connections, solar inverters are limited to 5kVA. This limit is set by the grid operator to help prevent voltage rise imbalance between the phases. For 3-phase connections, 3-phase inverters are capped at 15kVA to limit the amount of potential power flowing from homes back to the grid.
I’m trying to understand if voltage rise would still be an issue when all solar energy is consumed within the household. For example, consider a 15kVA single-phase inverter that’s designed to prevent grid export by adjusting output to match household consumption.
My intuition suggests that voltage rise on the grid side of the meter should be negligible.
Can anyone confirm this? I'm trying to lobby my grid operator to relax rules surrounding single-phase inverters with the capability of zero-export.
For single-phase connections, solar inverters are limited to 5kVA. This limit is set by the grid operator to help prevent voltage rise imbalance between the phases. For 3-phase connections, 3-phase inverters are capped at 15kVA to limit the amount of potential power flowing from homes back to the grid.
I’m trying to understand if voltage rise would still be an issue when all solar energy is consumed within the household. For example, consider a 15kVA single-phase inverter that’s designed to prevent grid export by adjusting output to match household consumption.
My intuition suggests that voltage rise on the grid side of the meter should be negligible.
Can anyone confirm this? I'm trying to lobby my grid operator to relax rules surrounding single-phase inverters with the capability of zero-export.
