Gemini South Telescope in Chile to run solely on clean energy by 2027 

 NOIRLab says it's on track to halve its planet-warming emissions by the end of 2027. 

https://cdn.mos.cms.futurecdn.net/HAdEpaGTEnPgJAdTLX8Av4.jpg

https://www.space.com/gemini-south-telescope-chile-clean-energy-2027