Well, this is not something you see everyday: a timeline focused on Chile trying to harness the Power of Solar Energy. Very interesting!
REALLY good stuff. I always wanted to explore a late 19th/early 20th century development of solar energy in a TL of mine, but I would have never thought of having it start in Chile! Also, never heard about Mouchot and its work, really interesting.
Chile was a minor power during the 19th Century, with a respectable navy and some colonial ambitions. The nitrate wealth, in a sense, cursed Chile to underdevelopment because it was easier to extract the wealth from the ground than industrialize. However, if there's any place suited for solar energy...
... it's northern Chile. The area generates twice the amount of energy Mouchot used for his collectors in France.
Now, the true fun begins when people in the 19th Century realize that the solar collectors allow them to reach temperatures far higher than coal or oil derivatives... and, with some tweaking, as low as 73 K.