Rondo - Heat Battery for Industrial Heat and Power

Rondo Energy introduces the Rondo Heat Battery, a pivotal solution targeting the climate and industrial energy sector challenges. Utilizing low-cost, intermittent electricity, the system efficiently converts it into thermal radiation, heating bricks to temperatures as high as 1,500°C for energy storage. This innovative technology ensures heat delivery on demand—be it start-stop or continuous—offering superheated air or steam to a variety of industrial processes. Capable of operating 24/7 throughout the year, the Rondo Heat Battery promises a sustainable operational life of 50 years with unlimited cycles. It is tailored to suit a wide range of industrial applications, including aluminum, cement, chemicals, and steel, among others. Furthermore, it offers the added benefit of integrating into combined heat and power setups, facilitating a clean heat and baseload electricity supply. The Rondo Heat Battery is available as a capital purchase for self-production benefits or as a Heat as a Service agreement, ensuring adaptable and economical energy solutions.

Low-cost, intermittent electricity turns into heat.

Zero-carbon wind and solar electricity are now lower cost than fossil fuels in many regions of the world - when the wind is blowing or the sun is out.
The Rondo Heat Battery uses electric heating elements, like those in a toaster or oven, to turn power when it’s available into high-temperature heat. 
Electrical heaters (Joule heaters) convert  electrical energy into heat at 100% efficiency, and interact smoothly with grid and off-grid generation.

Thermal radiation warms bricks at temperatures up to 1,500°C, storing heat.

When power is available, the electrical heaters glow brightly and warm objects around them rapidly. 
Thousands of tons of brick are heated directly by this thermal radiation, and store energy for hours or days with very low loss (less than 1% per day). 
Rondo’s Heat Battery stores heat the way it’s been stored for centuries. Millions of tons of this kind of brick have been used around the world for centuries to store high-temperature heat.

Heat is delivered whenever it’s needed, on demand, start-stop or continuously.

When heat is wanted, air flows up through the brick stack and is superheated to over 1000°C. The heat delivery rate is adjusted easily by changing air flow. 
Heat at the outlet is delivered at exactly the desired temperature via automated AI patented controls. 
The air is eventually recycled back through the system, minimizing heat loss and maximizing efficiency

Heat is delivered as superheated air or as superheated steam.

Rondo delivers heat at the exact temperature and pressure to meet facility demands 
The heat battery easily integrates into existing infrastructure. 
The system is a drop-in, zero-emission, boiler replacement.

Air and/or steam is delivered to any industrial process 24/7

The Rondo Heat Battery is modular, scalable, and energy dense. Each individual Heat Battery delivers megawatts of heat, and larger installations are built as a battery bank. 
The Rondo Heat Battery is designed to drop into existing facilities or power new-builds, and offers a fast, low-cost pathway to decarbonization and reduced operating costs.

The Rondo Heat Battery is a core climate solution and offers unparalleled value to the world’s most energy-intensive industries.

Zero-Carbon Heat & Power
Charged by intermittent renewable energy.

Lowest Cost
Renewable energy is cheaper than status-quo fossil fuel.

24/7 Storage
Maximize uptime by charging and delivering heat simultaneously.

Reliable
Decades-proven materials and technology utilizing modern technology advancements.

Modular & Scalable
Scale up or down to meet evolving facility needs and energy goals.

Energy Dense
A drop-in replacement for status-quo boilers, with a similar footprint.

Proven Materials
Abundant, low-cost, decades-proven materials.

Safe
No thermal runaway, no moving parts, no flammable materials.