It's hard to draw a link between negative prices and increased subsidies in most cases. The subsidies can be recouped during the no-negative periods. In addition, subsidies are not needed anymore to make wind and solar cost competitive. And with increased use of electric cars (and battery storage in general) we will see increased usage of this negative pricing to charge them so the negative price will diminish or go away.
Don't forget that we still produce most of our energy from coal, oil and gas. Most of that needs and will be replaced by electricity so there is a huge need for more electricity.
I google translated section 2.2 (paragraph 9) of the ruling document
> ... As such, the French authorities consider that there are “positive external effects” linked to the development of renewable electrical energies, in particular the reduction of greenhouse gas emissions from the electricity sector and the benefits in terms of robustness of the electricity sector. electricity supply linked to a more diversified electricity mix. These external effects are positive for the community but cannot be “monetized” by the investor. The French authorities consider that public support is necessary to have an investment in renewable energies that meets the expected collective benefits.
I would have expected inflation and interest rate changes to have negatively affected the viability of renewables. That is certainly the case for offshore wind in the UK (AR5 failed to produce any bids, AR6 has 66% higher maximum bid).
> I would have expected inflation and interest rate changes to have negatively affected the viability of renewables. That is certainly the case for offshore wind in the UK
UK interest rates went significantly higher than ECB ones.
Don't forget that we still produce most of our energy from coal, oil and gas. Most of that needs and will be replaced by electricity so there is a huge need for more electricity.