Passive House is considered to be the most rigorous voluntary energy-based standard in the construction industry today. Passive Houses use only 10% of the energy for space heating of a standard built, code-compliant home.
To learn more about Passive House, check out these resources:
How to Build a Passive House - Rules of Thumb
PHUIS+ Certification Guidebook
https://passivehouseaccelerator.com/
https://www.phius.org/what-is-passive-building
https://architizer.com/blog/practice/details/passivhaus-complete-guide/
https://foursevenfive.com/blog/
http://www.sustainableconstructionblog.com/construction/passive-house-vs-leed-standards