Christophe wrote:[...] Well yes what: explain to me FOR WHAT ECOLOGICAL REASON, a solar PV kWh should be paid 10 times more expensive than another kWh which emits just as little CO2 ???? [...]
The reason (and not the justification, nuance ...) seems to me simple and known to all: the deployment of PV technology with the (realistic?) Goal of making it more accessible by mass effect.
For the mill, a small downside to the general joy:
- a hydro plant requires regular maintenance of the mechanical parts, which can be far from negligible depending on the obsolescence of the equipment,
- a hydroelectric plant requires maintenance, certainly quite a long time away, of its "civil engineering & canal" parts which can be horribly expensive,
- a hydro plant has an operating license granted for a limited period. Its renewal is subject to the realization of an impact study which may be quite expensive and whose conclusions may lead to a decrease in production to limit the influence on the watercourse (if we say green, obviously !),
- it is possible that the hydrological regime of watercourses, especially in the Mediterranean region, will be different in the years to come compared to the statistical reference data, so the production may very well not be that expected.
That being said, and with the greatest possible respect for the aquatic environment, it is one of the modes of RE production that I prefer.
