Net Metering
Net metering is a model for the remuneration of electricity from (usually) small photovoltaic systems ( PV systems ) or small wind turbines. Here, the solar power generated is fed via a bi-directional meter into the grid and offset against the current reference. If more solar electricity than is consumed in the household, the surplus can be transferred to the next billing period.
Net metering has been introduced in some countries, including Denmark, Belgium, Italy, Cyprus, USA, Australia, Brazil.
Benefits
Today, the cost of generating solar power in some states are already significantly lower than the price of electricity for residential customers. With investment costs of about net € 1,500 / kWp, annual electricity yield of an average 900 kWh / kWp in Germany, maintenance costs of 1.5 % of the investment costs per year and a discount rate of 4% electricity generation costs are calculated ( LCOE ) of 16 ct / kWh.
Could in order to prevent over- promotion through net metering on the one hand, the sales tax exemption disappear when purchasing, on the other hand, the injected solar power could be remunerated at a lower rate than the electricity tariff for consumers. Just one proceeds from an initial 15 ct / kWh, which is linked to the development of electricity prices, could pa with an assumed electricity price increase of 3% be sufficient to ensure economic operation of the PV system.
PV systems with net metering will not get any feed-in tariff under the Renewable Energy Act. Instead of the three counters (for feeding, own consumption, electricity supply ) are just two required counter ( supplies and current reference ). For owners of PV systems in Germany has net metering also has the advantage that the annual tax declarations are not required.