[[https://www.energy.gov/sites/prod/files/2014/04/f15/10097517.pdf|Motor efficiency]]

[[https://www.servostabilizer.org.in/effect-of-low-high-voltage-on-electricity-bill/|low voltage issue]]

[[https://library.e.abb.com/public/0c4186f3e7354f6982124decf92742d8/AVC-20%20white%20paper%20(low%20res).pdf|Unbalanced voltage effect on 3 phase motors]]

[[https://hyacinthresearch.com/the-800-efficient-robert-adams-motor-generator/|The 800% efficient Robert Adams motor-generator]]