• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
TechElon Musk

Elon Musk suggests energy audits can relieve concerns over dirty cryptocurrency

By
Nathan Crooks
Nathan Crooks
and
Bloomberg
Bloomberg
Down Arrow Button Icon
By
Nathan Crooks
Nathan Crooks
and
Bloomberg
Bloomberg
Down Arrow Button Icon
May 21, 2021, 3:04 AM ET

Tesla CEO Elon Musk said Thursday that audits of renewable energy used by large Bitcoin miners could help assuage concerns about the cryptocurrency’s environmental impact.

“Recent extreme energy usage growth could not possibly have been done so fast with renewables,” Musk said in response to a tweet from Ark Investment director of research Brett Winton about the potential that Bitcoin mining has to foster the wider use of solar and battery systems on the power grid. “This question is easily resolved if the top 10 hashing orgs just post audited numbers of renewable energy vs not.”

Subscribe to The Ledger for expert weekly analysis on fintech’s big stories, delivered free to your inbox.

Bitcoin hashing (aka mining) energy usage is starting to exceed that of medium-sized countries. Almost impossible for small hashers to succeed without those massive economies of scale.

— Elon Musk (@elonmusk) May 20, 2021

Musk, responding to another Twitter user who asked about ideal energy usage in crypto mining, implied that even his favored Dogecoin still had some room for improvement and said he favored a ratio of 0.1kWh, “calculated as total energy used by system divided by max transaction rate.”

Previously, we demonstrated how bitcoin minting could allow solar + battery systems to economically scale to provide a larger share of grid energy.

As expected (in this update) the result holds across different historical bitcoin pricing/hash timeframes https://t.co/s70jCvR5sd

— Brett Winton (@wintonARK) May 20, 2021
Our mission to make business better is fueled by readers like you. To enjoy unlimited access to our journalism, subscribe today.
About the Authors
By Nathan Crooks
See full bioRight Arrow Button Icon
By Bloomberg
See full bioRight Arrow Button Icon

Latest in Tech

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • World's Most Admired Companies
  • See All Rankings
  • Lists Calendar
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Tech

Jensen Huang, chief executive officer of Nvidia
AINvidia
Nvidia gets tepid reaction to forecast, boosts investor rewards
By Ian King and BloombergMay 20, 2026
18 minutes ago
SpaceX finally files IPO prospectus, reveals revenue is up–but losses are too
Big TechSpaceX
SpaceX finally files IPO prospectus, reveals revenue is up–but losses are too
By Allie GarfinkleMay 20, 2026
28 minutes ago
Elon Musk sits with his fists together, looking up.
Commentaryspace
SpaceX will be worth trillions, but the space station that made it possible is worth even more — if we don’t squander it
By Tejpaul BhatiaMay 20, 2026
42 minutes ago
Antler CEO Magnus Grimeland says Silicon Valley doesn’t have a monopoly on tech: ‘People can innovate from almost anywhere’
AsiaAsia Agenda
Antler CEO Magnus Grimeland says Silicon Valley doesn’t have a monopoly on tech: ‘People can innovate from almost anywhere’
By Angelica AngMay 20, 2026
52 minutes ago
Clinical Psychologist Daniel Wendler
ConferencesWorkplace Innovation Summit
A ‘proudly autistic’ workplace expert says putting neurodivergent employees in a typical office is like dropping a polar bear in Austin, Texas
By Tristan BoveMay 20, 2026
2 hours ago
Pay transparency is exposing a bigger problem: Most companies can’t explain why they pay what they pay
Workplace CultureWorkplace Innovation Summit
Pay transparency is exposing a bigger problem: Most companies can’t explain why they pay what they pay
By Sydney LakeMay 20, 2026
2 hours ago

Most Popular

Bolt CEO says he let go of his entire HR team for creating problems that didn’t exist: ‘Those problems disappeared when I let them go’ 
Workplace Culture
Bolt CEO says he let go of his entire HR team for creating problems that didn’t exist: ‘Those problems disappeared when I let them go’ 
By Preston ForeMay 19, 2026
1 day ago
Meet a 21-year-old community college student who's going to China as the first American woman welder in the trades Olympics
Future of Work
Meet a 21-year-old community college student who's going to China as the first American woman welder in the trades Olympics
By Mike Householder and The Associated PressMay 17, 2026
3 days ago
The Bezos family just donated $100 million to help achieve one of Mayor Zohran Mamdani’s top campaign promises
Politics
The Bezos family just donated $100 million to help achieve one of Mayor Zohran Mamdani’s top campaign promises
By Jake AngeloMay 12, 2026
8 days ago
Current price of oil as of May 19, 2026
Personal Finance
Current price of oil as of May 19, 2026
By Joseph HostetlerMay 19, 2026
1 day ago
Spirit Airlines apologizes to all the Americans who can't afford any summer vacation flights as it shuts down
Travel & Leisure
Spirit Airlines apologizes to all the Americans who can't afford any summer vacation flights as it shuts down
By Rio Yamat and The Associated PressMay 18, 2026
2 days ago
Current price of silver as of Tuesday,  May 19, 2026
Personal Finance
Current price of silver as of Tuesday, May 19, 2026
By Joseph HostetlerMay 19, 2026
1 day ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.