Five years ago electrical engineer Sun Hongbin was given what many would consider an impossible task: build a full-fledged clean-energy system amid some of the coldest temperatures on Earth, screaming winds and half-year darkness.
China was then…
Five years ago electrical engineer Sun Hongbin was given what many would consider an impossible task: build a full-fledged clean-energy system amid some of the coldest temperatures on Earth, screaming winds and half-year darkness.
China was then…