Set-off of energy consumption (known as net-metering) is one of the tools to promote self-production and self-consumption with RES and is
applied in various countries, mainly for photovoltaic plants. Net-metering allows the consumer to cover a significant part of his own power consumption,
while enabling him to use the network for indirect green energy storage.
The term “net” arises from the fact that the consumer’s charge / credit relates to the difference between energy consumed and produced over a certain period of time. This period is usually the cycle of counting and pricing of energy consumed. If there is excess energy, it is usually not lost to the consumer but is credited for a certain period of time (usually one year, but there are cases where the credit is made for 36-48 months) when the final liquidation takes place.
Since most meters are bi-directional, the application of net-metering does not usually require significant costs on the part of the consumer, as it is not practical to install a second meter (as is the case with counting and selling green produce when used as a support tool the guaranteed feed-in tariffs, as has been the case in our country for years.