I see what you did there with Venezuela and Guyana
Actually I had this part of the story planned for about four months, well before Maduro threw his irredentist tantrum. Fucking Chavistas.
I imagine the suits are necessary indeed. Have there been many accidents, or God forbid casualties? (The late 19th century hasn't been stellar when it comes to workplace safety IOTL)
The Franco-Chilena was started by a former veteran officer who owes his life to the rank and file, a man who has experienced poverty and is some flavour of anarchist, and an European academic that would be completely appalled by the conditions of the average Saltpeter Office worker. Their first workers were their demobilised comrades and people who fought on their side, and exploiting them as was common at the time would've been shameful for any of them, especially after a massacre that left hundreds of workers dead.
So the company is unorthodox as it has a cooperative relationship with the workforce and invests heavily in security and comfort for the workers - which in turn are more productive and experienced than the average nitrate labourer, and thus more profitable per peso spent in wages.
This is also in line with the industrial nature of the products made by the Franco-Chilena. They need skilled and intelligent workers to manufacture the fairly complex devices they sell and export and would be difficult to replace if lost, so they are more willing to negotiate with the workforce.
The safety gear is absolutely necessary near the MTE devices, as the mirrors aren't perfectly polished (they are good enough for their task, not astronomical-quality... yet) and irradiate some sunlight to their surroundings, and the focal point also reflects some concentrated sunlight and heats stuff to the point where heat radiation becomes a problem. An exposed man would be sunburnt and experience severe eye damage in minutes if he placed himself in the risk area.
As with any company, accidents are inevitable, but they are significantly lower than in other industrial settings because the workers can communicate their complaints and demand solutions for unsafe conditions.
And this isn't to say everything is peachy in the Franco-Chilena. The Company is quite willing to make their turns from dawn-to-dusk, both as a result of their desire to get more labour out of their workers and the difficulty to establish a regular turn-based day when the production is dictated by the amount of irradiance*.
*: the obvious solution would be to have overlapping turns during midday, when solar irradiance is highest, and leave some idle capacity when only one turn is working. This is obvious, but not very intuitive from the manager's point of view.
This must be a bitter-sweet moment for Mouchot to look back at later - his child has reached that awkward teen stage and is out of his control.
Still I hope Chile is well on its way to becoming a major centre for Solar and even hydro-power research, be such a turn around from OTL.
The mention of Edison by Isidora Goyenechea is based in OTL. The first Hydroelectric powerplant in Chile was the result of a collaboration between Edison and Isidora Goyenechea, which means that ITTL Edison will be among the first US actors interested in the applications of Solar energy, especially in regards to electricity.
As for Mouchot, there comes a point in which he could be a late Edison (become a manager, have the name become a brand and let others solve the increasingly complex and specific problems which require special training) or a late Tesla (refuse to accept this and make increasingly wild promises based on your lack of understanding of these specific problems).
But he is a satisfied man. He made his point, and made a fortune in the process. Now it's time for him to bother others to optimise a Fresnel lens or to create more reflective mirrors.
I do agree with the president, the company is nearing Megacorporation dimensions in the country.
The company is still fairly small in comparison to other Chilean businesses and fortunes, like the ones in the hands of the Edwards family (Mines and formerly media, but since their newspapers were instigators of the TSC massacre, they bailed from that business), or the gigantic landowner clans like the Errázuriz, and dwarfed by the rest of Isidora Goyenechea's businesses.
The difference is that they are causing several economic shocks in Chile, having more in common with the Edison or Westinghouse companies than the typical chilean rentier capitalism. They produce added value and intellectual property, instead of extracting wealth from the land.
Just imagine the potential for tourism. Unlike major cities, like New York or London, you will be able to breath clean air while attending various services and entertainment.
I imagine that reports of entire industries operating without chimneys will cause disbelief in several parts of the world, at least for a while.
Not all that large - the deforestation problem here has more to do with land clearing for agribusiness than it has to do with fuel extraction.
Perhaps, but with solar and such agriculture will go down very differant routes I suspect which means the clearances of OTL will not happen as such.
Here's where some sort of pause to consider the effects of the Walipini greenhouse (and derivative technologies that will sprout naturally from these devices) will have in the food industry.
People will have a more reliable access to food variety, and food of better nutritional value than the cereals that would come to dominate the diets of the 20th century, which would probably lower the demand for cereal-based monoculture and intensive farming.
That remains uncertain for now, and would require a lot more thought to give a good answer about the extent of the change in comparison to OTL.
Dietary changes will be a fun topic to speculate, though.