Storage duty for solar electric power

In the final state will be 60% of the maximal daily yield be the minimu battery capacity. But even at the begin of the solar duty will be an appropriate sized place for the storage a duty.



  Not only for solar electric power


The storage is not only for the day/night balancing from solar electric power, but also for different tasks to optimize the electric power generation.

  • Avoidance to built new fossil power plants, because existing power plants can be better uses because of the batteries.
  • Impovement of the efficiency of fossil power plants by avoiding partial load and frequent load change.
  • Avoiding the provision of fossil electricity generation for wind energy prognosis failures.

  Management as a virtual power plant


In the sense of the project combi power plant should all solar power plants with storage do the best for a secure and einvironment friendly electricity production.

  Dimension of the battery room


For a one family house with 12 kW peak minimum photovoltaic requirement, 100 kWh maximal possible daily yield, the batteries place has to be enough for 60 kWh batteries. This is the order of magnitude like in a Venturi Fetish verbaut sind.

We assume 800 kg weight. So this battery place has to be able to store 750 kg batteries. 3m² should be enough.

Lithium
Lithium has the best expectations to solve our problems at our mobility and the day/night balancing of a photovoltaic oriented power supply.


Photovoltaic politics and furtherance
Further now, in order that when electric power from fossil energy costs 30 Cent per kWh, solr electric power costs only 25 Cent per kWh




  Solar duty


Study about the fast increase of electric power from photovoltaic. The German energy entry law is the best possible for 2004. The solar duty orients at the possibilities of 2008.

EEG Germany: It is difficult to bestow money
At the proclamation of the energy delivery low, there should have been immedeately long queues at every photovoltaic company to take the money present.


Germany EEG: credit problems
For German banks is a photovoltaic with 20 years energy delivery contract no security. At this fail 8 from 10 people interested in a photovoltaic. Solar duty guarantees the credit


Cheap thin film modules + synergy
The basics of the study for solar duty are cheap thin film modules replacing as synergy effect material for roof and and facade.


Comment about solar duty
Synergy effects by construction material replaced by photovoltaic and low modul prices make electric power from thin film photovoltaic cheap enough, to think about a duty.


Development of the solar duty
Unvarying tariffs, but from year to year more requisition at new buildings is the development target of the solar duty. Here a compare to the German EEG.


Liberation from the solar duty
The government determines for each property the dimension of solar duty. By the furtherance, there is a highest price, where the system is cost neutral for the new house owner.




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