More C&I MW Shifted for Longer
Behind-the-Meter Storage to Manage the 24/7 Demand of Cold Storage Facilities
Video: See How TES Works

Long-Duration Thermal Energy Storage

Why should public and private utilities focus on cold storage facilities? Because they have the #1 highest demand per cubic foot and the #3 highest consumption of any industrial category on the grid. And now there is a customer-located energy storage medium that can handle the formerly inaccessible high demand and continuous refrigeration equipment run time required to operate these facilities.

Operators in this industry, which consumes over $40 billion USD worth of electricity annually to keep food cold, now have the flexibility to determine when they purchase, store, and consume that energy.

Viking Cold’s behind-the-meter, long-duration Thermal Energy Storage (TES) technology leverages the heat transference properties of phase change material, intelligent controls, and 24/7 monitoring and reporting software to reduce energy consumption and shift time-of-use while better maintaining stable freezer temperatures to safeguard frozen product.

CASE STUDY: 93,000 square foot C&I frozen food warehouse drops 43% consumption and 29% peak demand for 13 hours every day.

TES in Ammonia Low-Temperature Warehouse - Dreisbach Case Study Infographic Results

This happens because the long-duration TES systems allow the energy intensive refrigeration equipment to be turned off for long periods of time during peak periods, or at times when renewable energy sources go offline, to flatten out demand spikes.

TES now provides utilities access to the enormous load of the cold storage industry for additional grid capacity and resiliency. This newly accessible load helps utilities delay costly infrastructure projects and provides a path to engagement with commercial and industrial customers.


Viking Colds TES technology has been tested, accepted, and incentivized by many utilities across North America, and our systems are installed and running in multiple countries.



Additional Capacity & Resiliency

20% to 30% Reduced Demand

Behind the Meter Storage

Address “Duck Curve” and Renewable Load Shifts

24/7 Remote Monitoring

Engage Industrial Customers

Utility Proven & Accepted Technology

Peak Period Refrigeration Energy Reduction with TES

Peak Period Energy Reduction with TES

Learn more about the grid benefits and demand shifting capabilities of long-duration Thermal Energy Storage technology in the heavy load and high demand sector of cold storage.


Viking Cold Solutions™ enables companies to achieve a 20%-35% reduction in energy consumption.

TES leverages phase change material to store energy in the form of cold for future use. It is engineered to freeze/thaw at the freezers designated temperature setpoint. This allows the refrigeration equipment to be turned off for long periods of time while maintaining stable temperatures in the freezer.

The Viking Cold TES system has no mechanical components and is the perfect solution to managing energy demand and load inside cold storage facilities. Being system agnostic, we leverage the existing refrigeration equipment to minimize energy costs while simultaneously maintaining temperature control.

Our Thermal Energy Storage system works well for new construction, retrofit or refurbishment projects.


38% Greater Temp Stability

20-35% Energy Savings

70% Energy Load Reduction

Reduced Mechanical Runtime

Stores Solar or Grid Energy

heat rises and is absorbed by phase change material

Heat rises and is absorbed by TES modules

heat is removed

Heat is efficiently removed from TES modules by the chiller fans


Phase Change Material (PCM)

  • Viking Cold proprietary formulations
  • Solutions of water and inorganic salts
  • Environmentally safe and non-toxic
  • Engineered for specific temperatures
  • Available -20°F to +32°F

TES Modules

  • Individually sealed bottles of PCM
  • High surface area ratio
  • Efficient heat transfer
  • Variety of installation options


  • Central microprocessor controller
  • Multiple temperature sensors
  • Equipment energy meters

Viking Cold proprietary algorithms

  • Keeps food safe at stable temperature
  • Optimizes thermal energy storage
  • Optimizes energy consumption
  • Minimizes equipment runtime
  • Programmable to change schedules for load shift or demand response


Temperature monitoring & alarms

  • Ensures food is protected at safe temps
  • Product assurance records

Equipment monitoring & alarms

  • Ensures proper equipment function
  • Preventive maintenance data

Energy monitoring & reporting

  • Optimizes energy savings by monitoring energy consumption in real time
  • Energy efficiency reports and recommendations


Viking Cold industrial refrigeration system

Viking Cold’s commercial and industrial freezer installations have been tested, accepted and incentivized by numerous utilities across the country to shift load to the desired times and help defer costly infrastructure investments. 

Our Solutions are successfully installed in:

  • Industrial and Commercial retail freezers
  • Refrigerated warehousing, logistics, transportation and distribution freezers
  • Multi-site restaurant and grocery store freezers


Viking Cold industrial refrigeration system

Viking Cold Solutions™ has developed processes and technology to improve overall system energy and temperature performance, resulting in a world-class refrigeration solution.

Sophisticated software algorithms optimized in real-world deployments combined with state-of- the-art measurement components are the core of our innovation.

  • Green energy technologies designed and integrated to reduce carbon footprint
  • Delivering proven economic results that are scalable from a single location to enterprise-wide deployments
  • Viking Cold Solutions™ has a broad and strong patent which covers refrigerated warehousing, logistics, transportation, and distribution


Viking Cold industrial refrigeration

Our proprietary algorithms and energy management software optimize thermal energy performance and energy efficiencies within a facility thereby reducing consumption, shifting demand and yielding lower costs. Viking Cold Solutions™ remote connectivity gives managers real-time desktop data and remote command and control at both the single location and total enterprise levels.

  • 5-year software development investment
  • Proprietary algorithms in energy management optimization
  • Cloud access gives managers real time command and control


Viking Cold Thermal Energy Storage System - Frozen Gourmet Viking Cold Thermal Energy Storage System Reduces Frozen Gourmet’s Energy Costs by Over 27%

For businesses in the frozen food market, energy costs are a major expense. Reducing the electricity used in storage facilities directly impacts the bottom line, making it a top priority for owners and operators. Cold storage operators who make the move to an innovative thermal energy storage system will realize significant cost savings, enhanced product monitoring, and protection for low temperature cold storage.

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Viking Cold Thermal Energy Storage System Plaza Provision Company cuts energy costs by over 30% using Viking Cold’s Thermal Energy Storage System

Thermal Energy Storage (TES) is an effective energy savings strategy that allows thermal energy to be stored when electricity is less expensive and used later when prices are higher and utility demand charges and consumption are at their daily peak. TES systems have been in use for decades, mainly in HVAC applications to lower energy costs and ease demand on the electrical grid. 

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butterfield and Vallis thermal storage refrigeration system Case Study: Butterfield and Vallis uses PCM thermal storage to cut refrigeration costs 40%

Butterfield and Vallis, a leading food distributor in Bermuda, is saving over 40% of their electricity consumption using Viking Cold’s Thermal Energy Storage Solution.  Viking Cold’s patented thermal energy cells were installed in the ceiling of Butterfield and Vallis' 10,000-square-foot warehouse freezer in 2015. 

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