Grid-connected photovoltaic systems

In the net

A grid-connected photovoltaic system consists of solar panels, which feed (through the inverter) the produced electricity in the network of the electricity supplier. Grid-connected photovoltaic systems do not require energy storage. This function is virtually taken over by the power grid. The owner of the photovoltaic system is a power producer and sells their electricity to a private or public electricity supplier.

1._Grafik_netzgekoppelt_engl

Quality Benefits

No fuel costs
Low maintenance costs
Independence from oil price fluctuations or increases
No environmental pollution caused by noise, exhaust fumes and oil leaks
Technically, very reliable and durable components (no wearing parts)

Feed-in remuneration

If an owner of a solar photovoltaic system would like to feed their self-produced electricity into the electricity supplier network, they need to check if this is allowed / supported in their country. In many countries the state hasn’t lifted the conventional monopoly in energy production and distribution, thus the supply of solar electricity requires a legal basis.

At 01.01.2004, in Germany, the Renewable Energies Act (EEG) came into force, which was introduced in the meantime, in over 40 countries in a modified form. In this Act, the supply of solar electricity to the public network is regulated. The minimum payment offered by the operators is 43.1 euro cents / kWh (in 2009).

Remuneration under the EEG
Year	Up to 30 kWp	Up to 100 kWp	Up to 1000 kWp	From 1000 kWp	Field-grown plant	Self consumption
2007	49,21*	46,82*	46,30*
2008	46,75*	44,48*	43,99*
2009	43,01*	40,91*	39,58*	33,00*	31,94*	25,01*
2010	39,14*	37,23*	35,23*	29,37*	28,43*	22,76*

*Cent per kilowatt hour

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