[zejn]

Ha, yes, a lot of deniers/delayers are going on about how Germany "wasted" billion on renewables, when in fact they had a booming solar industry, which got nuked by politicians, who changed the policies, as can be seen in 39C3 video "Recharge your batteries with us".

Was the subsidy system which was in effect in 2010's unsustainable? I think so, yeah. But the changed policies resulted in companies producing solar going bust, and the Chinese firms, which were doing fine, were able to buy out the patents and know how.

So, did Germany waste billions? Yes, but by letting the solar producers go bust.

[leonidasrup]

The billion spend on renewables in Germany were not "wasted", there were spend on the primary goal of the German Energiewende, to allow Germany exit nuclear electricity power production.

The 39C3 video "Recharge your batteries with us" is an emotional call to action "We Can Do It!" solar panels everywhere, without showing the other backbone of the German electric grid: the German gas and coal power plants.

I would recommend other CCC video:

"Deaths per TWh" The Price of Energy and Reducing CO2 Emissions

https://media.ccc.de/v/Camp2019-10193-deaths_per_twh

[mbid]

Solar panel production is extremely energy intensive. Germany has one of the highest energy costs in the world. So there was no way for Germany to maintain a competitive solar panel industry.

[AndrewDucker]

If only they'd been able to build enough solar power to bring down the energy costs to the point where they could build solar.

[zejn]

They could also just split the Germany into multiple bidding zones, then north parts of Germany would have a lot of cheap wind power, similar as in Sweden.

[ahartmetz]

Over the figurative dead body of Bavaria. They want cheap energy for their industry, they don't want wind power because it's ugly and bad for tourism, they will maybe accept a little well-hidden solar power, they don't want overland cables because they are ugly, and they don't want underground cables because they heat and dry out the ground. There is also some market distortion because energy is traded as if transfer capacity was unlimited, but when Bavaria buys cheap wind power that can't be moved, they still pay the cheap price but the energy is locally "replicated" at e.g. gas power stations, which is paid by... OK, I forgot, but it's a terrible system.

These "they" are different Bavarian persons and groups depending on topic, but the net effect is that Bavaria is Germany's energy bully.

Fortunately, several gigawatt-class HVDC lines are coming online this year. These somehow happened despite the protests, it's a minor miracle.

[mbid]

> similar as in Sweden

Sweden's electricity is ~40% hydro, ~27% nuclear and ~23% wind. How is this in any way comparable to Northern Germany?

[zejn]

> similar as in Sweden

-- which has 4 bidding zones.

[mbid]

What's the point?

Sweden has lots of potential for long-term energy storage as hydro power, which makes wind power viable. Northern Germany is mostly flat and there's not even close to enough storage capacity (on the order of ~weeks) to make a wind powered grid economically competitive.

[mbid]

Not sure if you're serious, but this was not viable in the 2010s, or even today in Germany at all because of Germany's high latitude: No matter how efficient solar panels become, they will always be more economical to operate closer to the equator. Anyway, the Chinese factories for the most energy intensive parts of solar panel production mostly run on coal power.

[ben_w]

> Anyway, the Chinese factories for the most energy intensive parts of solar panel production mostly run on coal power.

That's because China itself is mostly coal, not because of anything magical about particular sources. However, coal is now in decline even in China: https://ourworldindata.org/profile/energy/china

Before someone (accurately!) says the decline in coal is tiny and one year doesn't make a trend: This is likely to continue until there is no more coal for the same reason the UK also completely stopped generating electricity from coal: cost.

PV's absurdly cheap. China has a lot of land, doesn't need to care about optimal use of the Gobi desert.

[zejn]

Don't tell the UK they aren't supposed to be getting >15% of grid power via solar panels, because it's more efficient if the panels are in Spain.

[mbid]

How many solar panels does the UK produce?

[gregorygoc]

Germany has high energy costs, but back in 2010s they didn’t because they had access to cheap Russian gas.