He said: “When there’s confirmation of reasonable (~50%) clean energy usage by miners with positive future trend, Tesla will resume allowing bitcoin transactions.”
Shortly after the Tesla CEO’s comments, Bitcoin’s price jumped up more than $3,000 in a few short hours.
The price had been hovering around $35,000 before Mr Musk’s tweet, but within 30 minutes began surging.
After around three hours, Bitcoin hit a peak of $39,360, according to data from CoinDesk.
Most Bitcoin mining is conducted in China where large amounts of coal are used to fuel the process.
Research into how much renewable energy powers Bitcoin mining is not conclusive.
One study found Bitcoin networks are powered by around 40 percent renewable energy.
However, another found that figure to be over 70 percent due to Hydroelectric generators in Southwest China.
“Cryptocurrency is a good idea on many levels and we believe it has a promising future, but this cannot come at great cost to the environment.”