by Did67 » 03/12/13, 13:56
A more "boeotian" version:
- an individual installation to the standards of 3 kWc (3 kilowattpeak) costs about 12 000 euros TTC
- if we want to stay connected, to have current at night, current without limitation, without storage (high pruix), etc ... it is necessary to respect standards and it is this cost (except for the one who can make him -even !)
- in the East of France, 1 kWc produces on average 1 000 kWh each year (this year, a little less); verified on an installation of 600 m² / 80 kWc started in 2009
- so in 20 years, the roof of 3 kWc to 12 000 euros TTC will produce about 60 000 kWh
- the cost of production is therefore, today, without glitch on 20 years, 20 cents per kWh.
The difficulty in these "studies" is always to know from which base one starts: the price of the m² of panel? a very large "professional" installation with economies of scale ???
The subject is that in Germany, some businesses, in fact, move to self-production by installing themselves, for a whole set of parameters including the price (higher in Germany), taxes, investment rather than operation. .
We must therefore analyze more finely.
While noting that, indeed, little by little, we are going towards the convergence between the purchase price on the network (of which almost 50% of routing costs, do not forget it - see invoices!) And the price of production ... 20 cents against about 13,5 for an individual, it gets closer!
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