<p><img src="https://images.cointelegraph.com/images/840_aHR0cHM6Ly9zMy5jb2ludGVsZWdyYXBoLmNvbS91cGxvYWRzLzIwMjQtMDIvOTcwMGQ5MDEtNmZlZS00Y2E0LWEzZmMtMGU3NDBmOTYxMmZiLmpwZw==.jpg"></p><p>Bitcoin miners in the United States explain how energy-efficient models will help keep operations profitable post-halving.</p>