Q. How exactly does PV+ work?
A solar PV invertor is designed to mirror the incoming voltage from the grid and then increase this by up to 6% in order that the generated current is pushed around the property and ultimately any excess back into the grid.
In addition, the invertor has a built in safety mechanism so that if the voltage including the 6% increase exceeds 253v then the invertor will enter the shutdown mode for a short period of time and automatically re-boot, this is a stipulation of the G83 form which will be in the pack provided at point of installation.
Typical incoming grid voltage is between 230 and 253 volts, incoming voltage does spike for several reasons or factors throughout the day and on many occasions too. (One example would be weekends due to less demand from consumers) Most real time monitoring devices work on 5 minute intervals and therefore seldom pick this up
PV+’s Key function is that it is designed to reduce the incoming voltage by 7.5% to prevent the invertor reaching the overvoltage mode and keep your system in circuit throughout the daylight hours which increases your overall generation which positively impacts both the FIT tariff and generated electricity.
To receive the maximum benefit, PV+ needs to be located as close as possible to the incoming voltage at the point of entry into the home. Normally located near to the generation meter.
This is a completed installation showing the PV+ device
The incoming voltage reading prior to the install of PV + and before any increase from the inverter of up to 6%
Voltage following installation of PV+ at the last point before excess is returned to the grid