World's Most Flexible, Efficient, and Affordable Energy Storage

our Proprietary Cycle is the World's Most Flexible, Efficient, and Affordable Energy Storage system.



what we do

Cryo Energy Tech has developed a proprietary cycle of using atmospheric air as part of a thermal energy based storage system. The process includes the conversion of a zero cost fuel source (waste heat) into high value secondary forms of energy such as electricity and portable power. With the continuous integration of waste heat, our COP (Coefficient of Performance) can exceed 1, resulting in a electricity in/electricity out ratio of nearly 1:1. Our ability to adjust a system design from 100s of kilowatt-hours for use with a microgrid storage to 1000s of megawatt-hours for utility scale grid storage, along with time shifting of power from several hours to several weeks, opens the door for many different competetive use cases.

Here are just a few areas where our process can be very beneficial:

  • Co-Generation of Power based on waste heat Combined Cycle - Over 20% more output with same fuel consumption rate
  • Remote/Portable Power (click link below)
  • Emergency Back-up Power
  • Energy Storage for microgrid
  • Energy Storage for large C & I clients
  • Energy Storage for grid scale projects
  • Supplement LNG operations
  • Supplement ASUs (Air Separation Units)
  • Provide feedstock for industrial gas production
  • General Compression for various industries



Today's Energy Storage is primarily Pumped Hydro


but there are several limitations to this method of storing energy



Pumped hydro is only possible in a few select regions and requires multiple years to permit and construct.

Our cycle provides the benefits of pumped hydro without the limitations

our cycle consists of 4 major steps


details of each


step are below


Our technology


Step 1. Clean and capture air

The first step of the cycle is to capture the atmospheric air to remove debris and any other foreign objects. The pressure of the air increases using a multiple phase process to help minimize the level of temperature rise. The air now has moisture removed while recovering some of the energy that starts the cycle. 

step 2. convert air into liquid

The method of condensing atmospheric air into Liquid Air, Liquid Nitrogen, or Liquid Oxygen has been established for over 100 years. However, we have optimized this step with the ability to include waste heat. Other methods rely on using waste heat from the compression step, however that approach is adding back energy that was already spent. Our process results in a true gain in output by applying outside waste heat that increases the overall amount of work. The more waste heat added to this part of the cycle, the more "cold" becomes available to increase the overall yield of the now liquefied air. Thus, we turn useless "hot" into a valuable "cold." The waste heat can also extend the storage time of the existing liquid as described in STEP 3. The air that is compressed during STEP 1 provides the "cold" that is necessary to condense the air into liquid state as well as recoverable energy. Additional filtering can be applied when needed before the liquid enters storage.

Step 3. storage

Storage capacity is where thermal based energy systems really shine and our cycle is no different. A large increase in capacity is possible with little additional resources. For example, increasing the capital 2x can provide over 4.5x increase in overall capacity. Our cycle stores the liquid at low pressure so the cost of the storage vessel is minimized with the use of lower cost materials. Storing cryogenic material is an established industry with existing vendors and suppliers. If waste heat is included during STEP 2, storage time can be increased to several weeks with minimal losses.  

step4. reuse/repeat

Depending on the use case, the liquid can be used as is or converted back into power by reversing the steps. When mechanical or electrical output is required, the liquid reverses state back into a gas, just as it started in STEP 1. Part of the proprietary cycle includes our process of reversing the state efficiently. Applying waste heat during this step can also significantly increase the round trip efficiency of the overall cycle.



vs battery Storage

Lithium Ion based batteries receive plenty of attention, but most never bother to consider the negatives that are inherent when using for energy storage systems.

  1. The raw materials are toxic and when exposed to the open air, these materials start dangerous chemical fires. Due to this risk, batteries require constant monitoring.
  2. Most of the raw materials are mined instead of recycled. There's a finite amount of raw materials that are available to manufacture a Lithium Ion battery.
  3. Every battery will need to be replaced. For energy storage this is every 8-10 years.
  4. Batteries have difficulties operating in hot or cold climates, which happens to be most of the planet most of the time.
  5. Batteries do not have the ability to convert waste heat into usable output and certainly do not clean and purify the local air.

Energy storage systems built on our cycle can be any size required,  operate for decades everyday, convert discarded waste heat into useful energy, all while cleaning the air of the local surroundings. Benefits that batteries can NEVER provide. 


The storage battery is, in my opinion, a catch-penny, a sensation, a mechanism for swindling by stocking companies. The storage battery is one of those peculiar things which appeal to the imagination, and no more perfect thing could be desired by stock swindlers than that very self-same thing....
Scientifically, storage is all right, but, commercially, as absolute a failure as one can imagine. You can store it and hold it, but it is gradually lost, and will all go in time. It’s efficiency, after a certain number of charges have been sustained , begins to diminish, and its capacity and efficiency both diminish after a certain time in use, necessitating an increased number of batteries to maintain a constant output.
— Thomas Edison


We always look forward to discussing the different systems that are possible. Let us know what type of solution is required to meet your needs.