What is the latest technology in solar energy

What is the latest technology & design in solar panels / clean & pure energy around the world
Please tell us

Here is a detailed article explaining the latest solar cell technology… There is also a lot of new energy storage and solar thermal technology in development but we don’t have detailed article concerning these.

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Great update @Svarky, very insightful.

The latest technology in solar energy for crystalline silicon solar panel is PERC.
Mono PERC solar cell efficiency can reach ~ 21% now.