ThermalBox®, a game-changing product to decarbonize industry process
Our system combines power-to-heat technology with thermal energy storage. By utilizing direct electrical heating of a circuit of molten salts, ThermalBox® generates 100% decarbonized process heat, in the form of steam or a fluid. A reliable and sustainable way to reduce carbon emissions and join to a cleaner future.
Designed to replace fossil fuel boilers
ThermalBox® is the innovative solution designed to replace fossil fuel boilers. Engineered for uninterrupted operation, it flawlessly delivers a continuous heat output of 1.5 to 10.5 MWt across standard configurations. This corresponds to producing 2 to 15 ton/h of slightly superheated steam (+10 °C) within a process pressure range of 5 – 30 barg.
Performance
Unmatched efficiency to decarbonize industrial heat with renewable electricity
ThermalBox® stands as the unparalleled leader in efficiently decarbonizing industrial heat through the utilization of renewable electricity. When comparing alternative methods, the difference in efficiency becomes strikingly clear. Producing hydrogen and applying it in a hydrogen boiler achieves an efficiency of c.57%. An electric boiler combined with a battery offers a higher efficiency of c.76%. Nonetheless, it is ThermalBox® that eclipses them all, boasting c.92% efficiency for heat production.
How it Works
Redefining thermal storage with unique design features
ThermalBox® sets itself apart with its innovative design, comprising two circuits that can operate either together or independently, tailored to renewable power source availability and process requirements. This unique capability allows for seamless integration of renewable energy sources while ensuring continuous heat production. Notably, ThermalBox® is designed to enable simultaneous charging and discharging, allowing to provide demand-side flexibility to the electricity network.
Operating at atmospheric pressure, ThermalBox® employs gravity for the circulation of molten salt, effortlessly transferring heat from the hot to the cold tank. This simple yet robust design enhances ease of operation and ensures secure functioning in the event of any system failures.
Key Benefits
100% decarbonized process heat
Through electrification with a renewable energy source: hybridized on-site, PPA, and from a renewable grid.
Modular, adaptable & scalable
Cost-competitive & quick payback
40 years of 24/7 thermal energy storage
Safe, flexible & digitally controlled
On-demand flexible services
Optimizing Levelized Cost of Heat (LCOH)
Remote monitoring, control applications, and plant control systems enable real-time demand flexibility services to the electricity network.
Produce green heat by choosing or combining these 3 alternatives to power the ThermalBox® with renewable electricity
- On-site hybridization with a solar or wind generation plant
- Renewable Power Purchase Agreement (PPA)
- Connecting to a low emission electricity network
Build to Zero offers two delivery options
Heat-as-service
At Build to Zero, we offer a heat-as-service model where we take care of the entire process.
We deliver, install, and operate the ThermalBox® under a long-term contract. Working in collaboration with leading energy efficiency and renewable companies, we provide a comprehensive solution to our clients. This includes on-site solar PV or wind generation plants, as well as other Balance of Plant (BOP) equipment. Additionally, we partner with wholesale utilities and traders to help our clients negotiate renewable PPAs. This allows them to maximize revenue by leveraging the flexibility provided by ThermalBox® and delivering demand-side flexibility services to the electric system.
CAPEX
We also offer a CAPEX model to maximize efficiency and optimize capital investment for sustainable growth.
With this option, we deliver the ThermalBox® with configurations tailored to each client’s specific industrial process. Our team of experts in electrical, mechanical, and process engineering works to ensure maximum energy efficiency. We provide on-site construction and erection services through certified contractors, as well as start-up and operational services to ensure the ThermalBox® performs as expected. Integration with client control systems, complemented with remote monitoring and operational support, allows for seamless operation. We also provide on-site maintenance services and performance guarantees.