Victron Peak Shaving Demonstration at my home.
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- Опубликовано: 6 сен 2024
- I have been asked about this a LOT over the past few years, mostly when people are building an extra dwelling or a tiny build or adding loads such as an EV etc.
The Victron Systems can be set to “Peak Shave” which means it uses the battery to keep the incoming Grid Current setting below the desired set point. Obviously the battery and inverter both need to be capable of delivering the required energy and power to run the excess demand for the amount of time that the loads exceed the set incoming grid limit.
There are three ways to achieve this (all similar to each other):
1: Use "Optimised..." mode so that the battery can help to optimise the solar (if any) and set the SOC depth so that there is enough charge left to peak shave without completely discharging the battery. This means you will need a battery much larger - eg if you set the SOC limit to 60% then your battery needs to be around 2 x larger than...
2: Use “Keep Batteries Charged” setting. This will actually use the grid and solar (if any) to keep the batteries charged. The Grid setpoint will limit the charging power by the amount of load that is being used at any particular time.
3: Use 1 and 2 combined and use Node Red to control the SOC limit and when the system can optimise or has to charge from the grid to keep enough capacity for the next peak load.