Finally, real breakthroughs in cooling that double efficiency, extend equipment life and provide backup storage to guard against increasing utility outages.

With HVAC and Refrigeration accounting for 30% – 50% of all energy use in existing buildings, the need for improvement is more evident than ever. In addition to dozens of energy cost saving measures for mechanical systems, 3fficient has helped develop and is now integrating game changing innovations for comfort and refrigeration systems.


Unitary or Packaged A/C and Refrigeration units make up the majority of comfort and cooling in buildings around the world. The hotter it gets, the less efficient they work.

3fficient’s new Solarac technology actually reverses that. Our solar thermal enhancement delivers proven dramatic savings and life extension. Learn more >

Small footprint. Ground or rack mount.

PCM Storage

Refrigeration units are the life blood of cold storage. So when it gets hot outside, utility charges skyrocket and refrigeration units fail. Products spoil and profits go out the door.

3fficient’s passively thermal storage shifts peak demand to night while providing peace of mind backup cooling. It’s that simple.

Does not take up any usable rack space. No maintenance. Lasts a lifetime. Learn more >