https://www.pv-magazine.com/2024/09/12/mount-everest-now-hosting-solar-carport-at-4300-m-altitude/
Chinese module maker Aiko Solar says it has built a 150 kW off-grid solar carport at an altitude of 4,300 meters on Mount Everest, featuring 645 W bifacial dual-glass modules and 200 kWh of battery storage.
I would imagine this is the drop off point for that trek. The top of Everest is over double the altitude.
Remember that the 14 tallest peaks in the world are over 8 km from sea level. So 4,300m is definitely not near the summit.
The article really sucks on details, but some quick googling tells me that the two base camps are above 5,100m, so this must be below even that.
Edit: the "remember" part is not condescending, just something I try to remember to give perspective on heights. And I thought it was the 8 highest peaks before fact-checking myself 😅.
It's just a bad headline, I think it's on highway G318 in Tibet, so you might be able to see Everest from there but you're probably not starting a hike from the charging station.