Analysis: Elon Musk wants a greener bitcoin. Has he got a plan or a pipedream?

FILE PHOTO: A Tesla supercharger is shown at a charging station in Santa Clarita, California, U.S. October 2, 2019. REUTERS/Mike Blake/File Photo

LONDON (Reuters) - Elon Musk says Tesla won't use or accept bitcoin until he can be sure it's produced sustainably. He may be waiting some time.

Musk announced his new position in a major U-turn on Wednesday, prompting speculation among some experts about whether he had a plan to wean the crypto industry off the fossil fuels that power "mining," the energy-intensive process that creates coins.