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The basic
approach is that technical design and economic viability of a specific
project-idea are closely related issues. It is important to focus on the
cost-per-kWh of the planned system; though it is equally important the
relevant regulatory framework, the support programmes and the sector local
practices, toghether with its corresponding estimated trends.
It is important
to focus on the cost-per-kWh according to
the different technological alternatives available in the market, so to take the
better one for the specific site. A simple, generic comparison between
these alternatives (for example, between different photovoltaic technologies:
standard modules, thin-layer modules, concentration systems, film sheet, ...)
may be misleading, since they have different investment costs and maintenance
costs, but also different yielding (kWh) for the available square metres.
Though it is equally important
1) to introduce in the viability analysis the incidence of grants and subsides
from the central and local government, for which the project-idea would qualify
for; and 2) to make precise the corresponding regulatory framework: likelihood
of obtaining authorisations, permits, and conditions for contracting the
connection to the grid .
According to
that approach for the economic viability analysis, that set of legal and
regulatory environment is actually a key issue. And it shows relevant
differences not only between different EU States but also between different
regional and local authorities (municipalities).
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