Wind: Germany has a robust wind energy programme. German taxpayers and rate payers subsidise wind power to the tune of some €5 billion/ year. Investors in wind are guaranteed a rate of 8.2 euro cents per kilowatt hour for 20 years on shore or 9.1 euro cents offshore.

Beyond the basic error that the FIT numbers are out of date, the article conflates payments under the FIT (ca. 60TWh at 82 EUR/MWh is 5 billion euro) with subsidies. The subsidy component should only be the part of the price which is above market levels, not the absolute amount...
Of course, after that 'error' there is the additional neglect of the merit order effect (evaluated to be worth more than 5bn per year to consumers by academic studies) and the value of avoided externalities.

Germany is reaching the point of destabilising its electricity grid with too much wind and insufficient grid interconnection.

As one says "[citation needed]." This is plain false and unsusbtantiated.

Germany may have as much solar PV capacity installed as it had nuclear before the 11 March shut down. Unfortunately, with an average of 14 days of rainfall per month and sunshine less than five hours per day through the year, solar is not very efficient - solar provides just over 1.0% of electricity.

The capacity factor is what it is. What matters is that (i) in terms of capacity, solar is already on the scale of nuclear (and thus is a significant part of the overall system, not a minor add-on), (ii) the yearly additions are on the same significant scale and thus (iii) it is not because solar was a small part of production that it will remain that way!

Germans pay a feed in tariff of up to 49 euro cents per kilowatt hour for solar energy.

Misdirection - the highest tariff applies only to the very smallest installations (where the relevant comparison is the much higher retail price, not the wholesale price), notto the larger installations, which benefit from lower (and steadily decreasing) tariffs.

 as long as the German taxpayer's investment in solar technology doesn't get sold to a Chinese company - as has happened in wind.

Not sure exactly what Germany's taxpayer investment in wind he has in mind, but (i) such investment was nil since FITs are paid by electricity consumers, and we've seen there that the effect is actually positive... and (ii) how does the health of the German wind sector (and assorted subcontractors) look to you?

Neighbours: This may be the easiest option - just like Italy. Germany has at least six neighbours who may be willing to sell electricity to Germany and others further afield.

... except that Germany is still today (with 7 reactors already off) a net exporter.


Wind power