- Location
- Placerville, CA, USA
- Occupation
- Retired PV System Designer
Any grid tie inverter (except hybrid inverters) will match the voltage seen coming from the grid and just supply current at that voltage. It also used a number of specific tests of frequency and voltage stability and very low source/sink impedance if the grid. If the grid source is not seen the GTI cannot, by design and regulation, produce any output.
When a qualified grid source is seen the GTI has no choice but to dump all available PV power to the "grid", not knowing how much of the net power is going to local loads and how much is going out through the meter.
When a qualified grid source is seen the GTI has no choice but to dump all available PV power to the "grid", not knowing how much of the net power is going to local loads and how much is going out through the meter.