Frequently Asked Questions

The Thermal Tank is the leading thermal battery in the market, designed to store energy in the form of hot (up to 200 F) or cold water. A phase change solution is under development. Made from lightweight, recyclable expanded polypropylene foam (EPP), it features a one-time-fill water system and a corrosion-resistant nylon/stainless steel heat exchanger. It stores energy from PVT panels, heat pumps, or waste heat during off-peak hours (e.g., 10 cents/kWh) for use during peak TOU rates (e.g., 30 cents/kWh), saving up to 85% on hot water costs. Daisy-chained tanks (350–700 gallons) and rapid assembly (5–10 minutes) make it ideal for hospitals, laundromats, or multi-family housing.

A tank is designed to be filled with liquid, which is then heated (or just stored) and finally released/used.

Our Thermal Tank acts more like a thermal storage battery with a working fluid (typically water).  The working fluid never leaves the thermal storage system, it may circulate to the PVT or the heat pump, but it stays in that cycle. Cold water enters the thermal storage battery, picks up the energy via a heat exchanger, and then exits as hot water.

We need to size the system correctly. We need to understand how much hot water will be needed at the daily peak and for how long. We need to choose a size of tank and size of heat exchanger that can “cover” that peak draw window.

We need to ensure our thermal energy capture system is able to recharge the tank in time for the next draw window.

As a proxy: one tank paired with a heat pump can provide up to 4 times its volume in hot water per day.

Competitors in the commercial space use large steel tanks. They are bulky, hard to ship, and often more expensive. They do not retain the energy as well. Most of these tanks are also pressurized, so the way they need to be installed in a system is very different.

Yes, you can store thermal energy from any source: solar thermal, heat pump, waste heat from AC units, heat from wood burners. We are planning to work strategically with manufacturers of heat pumps who do not have a tank solution.

The basic idea is this: A thermal storage solution can store preheated water (e.g. captured from a heat pump). A water boiler will run more efficiently if the water is preheated.

Due to the additional storage capacity of preheated water, the water heater or boiler does not need to be as powerful as it would normally be required to be (for peak demand). This makes the system cheaper to acquire and to operate. The total system cost comes down.

Yes, it has the same benefits. It can be used in cooling systems

Our products serve high-hot-water-demand industries, including:

• Hotels and Resorts: Ensure the highest level of hot water availability during peak demand (e.g., morning showers) while reducing equipment and operating expenses. Hot water usage standard is 15 gallons per guest per day.
• Laundromats: Handle high hot water usage (2 gallons per pound of laundry) with cost efficient, high-flow-volume solutions. Capture incremental benefits of space cooling from heat pumps.
• Hospitals and Healthcare Facilities: Very large hot water needs for patient care, cleaning, sterilization (standard is 75 gallons/patient/day). Optimize use of existing energy sources through waste energy recapture.
• Agricultural Facilities, Food Processing, and Greenhouses: Hydronic loop heating, equipment and produce cleaning and sanitizing, combining our PVT with Geothermal to sustain the geothermal field performance.
• Breweries: Recapture and store thermal energy through the stages of the brewing process, reducing overall cost for hot water.
• Multi-Family Residential: Explore centralized and decentralized thermal storage options to improve existing system efficiency and drive decarbonization.
• Commercial Kitchens and Restaurants: Reduce the cost for hot water generation used in cooking, dishwashing, and cleaning (Guideline for hot water needs: 1.5 gallons per meal served).
• Correctional Facilities: Supply lower-cost hot water solutions for broad range of uses (inmate showers, laundry, cleaning).
• Educational Institutions: Combining the benefits of the previous sectors – hot water usage in dormitory showers, lunch rooms, cleaning. Bring down system and operating cost to free up funds for mission related activities.
• Military: Ensure hot water for barracks and dining. Optimize the use and performance of existing field equipment through expanded thermal storage.
• Senior Care Facilities: Meet hot water demands for resident care, similar to multi-residential and hospital sectors.

And others such as these:

• Aquatic Centers
• Car Washes
• Casinos
• Catering Facilities
• Chemical Manufacturing
• Cleaning Services
• Commercial End Customers
• Dairy Processing
• Distilleries
• Food Processing
• Fish Processing Facilities
• Golf Clubs
• Greenhouses
• Gyms and Fitness Centers
• Healthcare Facilities
• Installers
• Laboratories
• Meat Processing Plants
• MEP Firms
• Paper Mills
• Pet Boarding Facilities
• Pharmaceutical Manufacturing
• Plastic Manufacturing
• Public Bathhouses
• Resorts
• Restaurants
• Spas and Wellness Centers
• Sports Facilities
• Swimming Pools
• Textile and Apparel Manufacturing
• Truck Stops

Yes, our products are eligible for:

• 40% ITC: 30% base + 10% Made in America bonus for USA-sourced components.
• State/Local Rebates: E.g., California’s SGIP ($20,000) or utility incentives ($100–$500/kW).
• Accelerated Depreciation: 5-year MACRS offsets ~25–30% of costs in year one.
• Example: A $500,000 system could be reduced to $150,000 after $200,000 ITC, $50,000 rebates, and $100,000 depreciation.

The  tank’s EPP construction, corrosion-resistant heat exchanger, and roofing-grade outer skin ensure a 25–30-year lifespan, outlasting steel tanks (5–10 years). Stress-tested to 180 mph, it’s hurricane-ready for coastal resorts or hospitals. A one-time-fill system and self-cleaning 5-micron filters minimize maintenance.

Our bluebot tool measures hot water usage for precise tank sizing (350–700 gallons, daisy-chained for scalability). This ensures optimal performance for breweries, laundromats, or multi-family properties, maximizing ROI.

Contact our team to assess your needs, calculate savings, and explore incentives. We tailor solutions for your industry, ensuring rapid ROI and sustainability.