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.
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.
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
1. On-site hybridization with a solar or wind generation plant
2. Renewable Power Purchase Agreement (PPA)
3. Connecting to a low emission electricity network
Build to Zero offers two delivery options
At Build to Zero, we offer a heat-as-service model where we take care of the entire process.
We also offer a CAPEX model to maximize efficiency and optimize capital investment for sustainable growth.