Calora stores renewable electricity as high-temperature heat and delivers stable energy to industrial processes exactly when it is needed. The system is installed and operated by Huma — allowing factories to access low-carbon heat without capital investment or operational complexity.
We store renewable energy at 1,538°C and deliver it as heat, power, and savings — through a service model that aligns our success with yours.
The intermittency challenge
Renewable electricity is now among the cheapest energy sources in the world. Solar peaks at midday. Wind varies by the hour. Industrial processes, however, require continuous heat around the clock.
The result is a broken system:
Factories still burn gas while cheap renewable electricity goes unused. The spread between low midday prices and evening peak demand can reach €120/MWh.
That gap is where Calora creates value.
Transforming intermittent electricity into stable industrial heat.
Calora captures surplus renewable electricity when it is cheap and converts it into high-temperature heat stored in ceramic thermal batteries. The energy is then delivered exactly when your process requires it.
Continuous, emission-free heat
with a −200°C to 2,000°C operating range
10× energy density vs lithium-ion
Energy is stored inside iron-based thermal batteries at very high temperatures.
Heat, power and cooling from one system
with AI-optimized charging and dispatch
No new grid connection required.
No disruption to operations, no upfront capital.
Industrial energy infrastructure — without the investment.
Traditional energy projects require factories to purchase equipment, manage installation and carry operational risk. Calora works differently.
Huma installs, owns and operates the system directly at your facility. You don’t buy hardware. You simply purchase the energy delivered. This removes capital barriers while allowing your facility to immediately benefit from lower energy costs and reduced emissions.
How value is created
Electricity prices fluctuate dramatically throughout the day. Renewable energy can be extremely cheap during periods of strong solar or wind production — and extremely expensive during peak demand. Calora captures this spread.
The system charges when electricity is cheap and stores that energy as heat. When your process needs energy, the heat is delivered. The difference between low-cost charging and high-value energy delivery creates the economic value.
A model aligned with your savings
Our success depends entirely on system performance. If the system performs well, both parties benefit.
Customers pay a transparent service fee based on the energy delivered and the savings generated. The result is a partnership model where incentives are fully aligned.
Lower costs.
Lower emissions.
Lower risk.
Multiple value streams
Service Fee
| How It Works | Your Benefit |
| Predictable energy service charge | Budget certainty |
Energy Arbitrage
| How It Works | Your Benefit |
| AI captures low-price energy | Lower energy cost |
Process Heat
| How It Works | Your Benefit |
| Stable high-temperature heat | Reduced fuel consumption |
Grid Flexibility
| How It Works | Your Benefit |
| Absorbs surplus renewable energy | Lower grid exposure |
Ready to turn energy volatility into savings?