Frequently Asked Questions
A quick reference to common questions about our Thermal Energy Storage system. If you still have questions that we have not addressed, please reach out to us.
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1. WHAT IS THERMAL ENERGY STORAGE (TES)?
TES is the storing of excess thermal energy (energy in a system due to its temperature) for future use.
2. HOW DOES YOUR THERMAL ENERGY STORAGE SYSTEM WORK?
The Viking Cold TES system leverages existing refrigeration equipment in low-temperature facilities to freeze Phase Change Material (PCM) when energy costs are lower and system efficiencies can be exploited. This allows intelligent controls to turn off refrigeration equipment during periods of high energy costs while the PCM maintains temperature stability and low energy consumption. The result is 20% to 35% lower energy costs, 38% greater temperature stability and more efficient, longer lasting refrigeration systems.
3. WHAT IS INCLUDED IN THE VIKING COLD SOLUTIONS TES SYSTEM?
Our Thermal Energy Storage system includes three components:
  • Phase Change Material (PCM)
  • Control System
  • Remote Monitoring & Reporting Portal
4. WHAT IS A PHASE CHANGE MATERIAL (PCM)?
Phase Change Materials (PCM) store and release energy when they transition between their solid and liquid states. While changing phases our engineered PCM absorbs 300 times more heat than food.
5. IS YOUR PHASE CHANGE MATERIAL SAFE TO USE?
All our PCM formulations are comprised of deionized water and inorganic salts. They are food safe, environmentally friendly, non-toxic and non-combustible. The entire system is also 100% recyclable.
6. ARE THERE ANY MECHANICAL PARTS IN YOUR TES SYSTEM?
No. There are no mechanical parts (pumps, motors, actuators, compressors, etc.) in our TES system. They leverage existing refrigeration equipment. The PCM is housed in self-contained cells mounted in stationary positions throughout the facility.
7. WITH WHICH REFRIGERATION SYSTEMS DOES YOUR TES SYSTEM WORK?
Our solution is refrigeration system agnostic and works with any properly maintained system.
8. WITH WHICH CONTROL SYSTEMS DOES YOUR TES SYSTEM WORK?
Our TES system is extremely flexible and can be integrated with any existing control system. We also have our own control system that can drive the refrigeration system in conjunction with our PCM.
9. DOES THE VIKING COLD TES SYSTEM AFFECT OTHER FREEZER COMPONENTS?
No. Our system actually integrates with existing racking systems, does not reduce any storage space, does not limit sprinkler or fire suppression systems, will not affect your commodity classification and will not impede or disrupt any logistical operations in your facility. In fact, the system’s controls and remote monitoring actually improve overall efficiencies and allow for predictive maintenance of other system components.
10. CAN YOUR SYSTEM BE INSTALLED INTO EXISTING FACILITIES (RETROFIT)?
Yes. Viking Cold systems can be installed as a retrofit, refurbishment or in new construction projects. The sooner they are installed, the sooner that facility will start to see reduced energy expenses, improved temperature stability and increased refrigeration system efficiencies.
11. WHAT ARE TYPICAL ENERGY SAVINGS?
Our clients save between 20% and 35% of their energy expenses while maintaining greater temperature stability.
12. DOES THE TES SYSTEM MAINTAIN TEMPERATURE STABILITY?
Yes. Our TES system is engineered to maintain temperature stability within the specific temperature range for each facility; providing fewer fluctuations and a 38% slower rise in temperatures.
13. CAN YOUR SYSTEM PROVIDE THERMAL BACKUP PROTECTION?
Yes. In the event of power outages or equipment failure, we have seen temperatures remain stable three times longer with our TES system installed.
14. DOES THE TES SYSTEM IMPROVE REFRIGERATION EFFICIENCY?
Yes. The Viking Cold system maintains stable temperatures while allowing the existing refrigeration system to be turned off for extended periods of time. When the systems are running, they run at full capacity at times when ambient temperatures are lower, enabling greater refrigeration efficiency and less energy usage. The reduced mechanical run time of the refrigeration equipment also leads to less maintenance and longer equipment life.
15. DOES YOUR SYSTEM INTEGRATE WITH ON-SITE SOLAR POWER GENERATION?
Yes. Our system pairs very well with onsite solar/PV generation to dramatically increase solar ROI. Our solar clients have seen a reduction of 39% annualized energy expenditures and 95% overnight grid reduction, directly addressing grid challenges related to the “duck curve”.
16. HOW LONG WILL YOUR SYSTEM LAST?
The life of the Viking Cold TES system is 20+ years.
17. HAS YOUR TES SYSTEM BEEN APPROVED OR VERIFIED BY ANY OUTSIDE PARTIES?
Yes. Our system installations have been accepted and funded by numerous utilities as part of energy saving incentive programs, as well as being proven effective in a third-party validation study (click here) performed by the California Energy Commission’s Emerging Technology Coordinating Council.

Still have questions about our Thermal Energy Storage solution?
Call +1 832.781.COLD or click for more answers.

Recent Posts From Our Blog
Viking Cold Solutions Wins Top 3PL & Cold Storage Provider Award

Food Logistics honored Viking Cold’s Thermal Energy Storage (TES) technology with the Top 3PL & Cold Storage Provider award for 2024! This award recognizes industry leading third-party logistics and cold storage providers in the cold food and beverage industry. Our TES technology was highlighted for making the world’s refrigeration and cold storage systems more efficient, flexible, resilient, and sustainable. With TES technology, cold storage operators can increase refrigeration system efficiency by 20-30% and cut energy costs up to 50% while better protecting products. Maintaining consistent temperature control, despite mechanical issues, grid interruptions or natural disasters, is critical for preserving product quality and safety. Our TES systems integrate easily and have been installed in commercial and industrial frozen food warehouses and distribution centers around the world. “3PLs and cold storage providers remain a key puzzle piece to building and nurturing partnerships, cultivating resilience and helping companies in the cold food space overcome supply chain disruptions,” says Marina Mayer, Editor-in-Chief of Food Logistics and Supply & Demand Chain Executive. “Seventy-six percent of the winners plan to invest in software solutions this year. This is indicative of how forward-thinking these 3PLs and cold storage providers are, and how despite disruptions and other challenges, they continue to forge ahead.” Food manufacturers, 3PLs, supermarkets, and restaurants adoption of Thermal Energy Storage technology is helping the broader food industry decarbonize today. By leveraging TES, these businesses reduce energy usage, lower their carbon footprint, and more efficiently store renewable energy. Viking Cold Solutions provides innovative technology to support a more sustainable and resilient cold chain. To see how we can help optimize your facility, check out cold storage benefits of TES. For more information on Thermal Energy Storage contact sales@vikingcold.com.

Viking Cold Solutions Wins AESP Energy Award

Left to right: Jen Szaro, James Bell, Rebecca Troutfetter Viking Cold Solutions is recognized by the Association of Energy Services Professionals’ (AESP) inaugural Innovations in Demand Flexibility award today at their annual conference in San Antonio, Texas.  The award was received by James Bell, Viking Cold Solutions’ President and CEO, and presented by Jen Szaro, President & CEO of AESP, and Rebecca Troutfetter, Vice President of Engineering & Corporate Impact at CLEAResults. AESP, a leading industry trade group advancing the energy industry, introduced the Innovations in Demand Flexibility award this year.  This competition for the award spanned various demand flexibility programs, such as renewable energy projects, distributed energy resource programs, demand response initiatives, microgrids, decarbonization efforts, and electrification programs. Viking Cold Solutions' Thermal Energy Storage (TES) technology consistently achieves positive impacts on business operations, the electricity grid, and the environment.  Beyond its energy demand management and electrical efficiency achievements, TES helps address critical issues like food waste and food insecurity by better preserving food quality while also conserving electricity.  Additionally, TES's unique ability to store and more efficiently utilize renewable energy assists with efforts to accelerate the decarbonization of the power grid, contributing to a more sustainable energy landscape.  Viking Cold Solutions monitors all sites 24/7/365 to ensure clients’ peace of mind, and all parties can view performance metrics and historical data through the cloud-based portal. Some examples of demand flexibility and efficiency include the deployment of Viking Cold’s innovative energy technology in regional food banks from coast to coast which resulted in quantifiable and meaningful positive impacts.  By reducing energy costs, TES technology provides hundreds of thousands of additional meals to Americans suffering from food insecurity. This further demonstrates Viking Cold's commitment to addressing energy and environmental challenges while creating a positive economic and social impact through practical local initiatives. Viking Cold Solutions builds lasting partnerships with our clients and stays engaged throughout the life of facilities with ongoing data collection, optimization initiatives, and utility incentive programs.  Through these initiatives, TES technology has saved over 44 million kWh of electricity, avoided over 34 thousand tons of GHG emissions, and earned millions of dollars in incentives for our clients. For further details on the AESP Energy Awards, please visit AESP. To learn more about Viking Cold's technology and how it can reduce energy consumption to enhance the sustainability of cold storage facilities, reach out to Viking Cold today!

Frozen Food Month: The Path to Growing Sustainably

In recent years the popularity of frozen food has steadily increased in the United States.  However, during the pandemic, frozen food experienced a surge in demand.  The Food Institute reports that frozen food sales increased by 21%, with the pandemic serving as a major contributing factor to this growth.  The pandemic-induced lockdowns and social distancing measures led to significant changes in people's eating habits, and many turned to frozen foods for their convenience, long shelf life, nutritional value, and ability to be stored in bulk. Source: Quartz Despite a steady increase in dollar sales, unit sales of frozen food fell in 2021 and 2022 by 3.2% and 5.1%, respectively, highlighting the potential impact of inflation on frozen food costs, reported the Food & Beverage Insider.  Notwithstanding these declines, unit sales are still higher than they were before the pandemic, demonstrating that the demand for frozen foods remains strong – in part thanks to millennials who have now become frozen food’s largest consumers. According to the Food Navigator, older millennial shoppers, who are approaching the age of 40, represent 48% of the consumers of frozen foods.  This generation prioritizes health and wellness and values a wider range of culinary options that use premium ingredients with fewer additives and preservatives.  Alongside nutrition, they also demand convenience and sustainability in their food choices.  With over 3,700 options in the frozen food section, there is something for every taste and lifestyle, notes the National Frozen & Refrigerated Foods Association. The growing popularity of frozen food has led 29% of consumers to expand their freezer space since the pandemic began, reported the American Frozen Food Institute.  As demand for frozen food products increases, retailers are seeking ways to optimize their freezer sections while also reducing energy consumption for higher quality and more efficient frozen food storage.  Companies like Viking Cold Solutions are helping retailers and distributors to not only improve the efficiency of their cold storage system by up to 50% but also increase facility resiliency.  These advancements indicate a promising and sustainable future for frozen food. With all the demands on consumers’ lives, the greater convenience and quality of frozen foods meet a growing priority.  The frozen food industry now has innovative new technologies to sustainably address consumers’ needs while reducing energy costs.  Given the challenges of inflation and an unstable economy, it will be interesting to observe the further developments of frozen foods and cold storage technologies over the next few years. Learn more about Viking Cold’s sustainable Thermal Energy Storage technology here.

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