Poor countries in the global south. They are likely to have revolutions and build a new society the soonest due to decreasing material conditions and a lack of alternatives. Wealthier countries will be able to use their money and power to maintain the status quo for much longer imo

Edit: I forgot I also wanted to mention Rojava, they have already begun building a society based around liberation and ecology. Their ideology is based off of Democratic Municipalism as imagined by Abdullah Öcalan and Murray Bookchin. This is a good start but obviously not an ending point for a "solarpunk" society

The Netherlands maybe? They already got the bicycle thing.

What do you mean by solarpunk being a reality? That is really important as solarpunk is utopian and that somewhat litterally means no place. So you have to draw the line of what makes a country solarpunk enough to count. That basicly is a question of what your values are. Anyway some of my ideas are:

First of all technically speaking there is a massive problem of providing a high quality of life and no breaking planetary boundaries. Basicly rich countries provide the quality of life for nearly everybody, but break planetary boundaries, whereas poor countries do not break planetary boundaries, but do not provide a high quality of life. I really like the Happy Planet Index, which basicly takes how long a good a persons life is and divides its by the enviromental footprint. The regions which do the best in it are Latin America and then a bit worse is Europe. However some Asian countries do well as well. However those places are also more likely to just reform to the point of decent sustainability, as the cliff is not as bad.

If you want to see new organizational systems, you have to look at the most disadvantaged places in the current system. So places like Rojave and Zapatistas in Mexico are examples of that. However Subsaharan Africa is propably the most likely place for other new systems being born, given the current situation. If you have little to loose, taking risks is just a prudent move. So Europe for example is not going to try something like that at all.

The non-Catholic areas of Ecuador, Bolivia, Colombia. Maybe Paraguay (I've never been there but heard good things).

Laos. There's actually a sustainable tourism initiative I'm waiting to get more info on.

Some places in West Africa.

We could probably get it going here in Australia. We’ve got an awful lot of land not good for much other than solar arrays. We may need them to run desalination once all our natural water sources dry up. We already have communities living underground.

time for a Sixth International?

• Vietnam
• Naxalites
• Rojava
• Sankara’s Burkina Faso
• CNT
• Cuba
• IWW
• EZLN

We all have to share the same atmosphere. So what's the point to have some eco-topia in just a few countries ?

India is becoming an Hinduvata hellscape, but the Kerala region has a centuries-old multifaith and multicultural ethos, boasts the highest literacy rate in all of India among other impressive human development indices, and #PoMoneModi frequently trends on Kerala's language's Twitter. This is all the more impressive and solarpunk due to Kerala's deeply agrarian culture and industry.

It is my understanding that solarpunk inherently emphasizes local communities.

So I think, you have to look very closely on the circumstances in your local community. And that, you can only do from up-close. So you can't tell in general.

On a long enough time line, every country. Just need to add a little freedom.