Kyoto Group offers Heatcube, a molten‑salt thermal battery that stores low‑cost electricity as high‑temperature heat (150–300 °C) with 93 % efficiency and delivers zero‑emission steam on demand. The plug‑and‑play system can be sold as a product or provided as a Heat‑as‑a‑Service solution, enabling energy‑intensive manufacturers to replace fossil‑fuel boilers, stabilize energy costs, and reduce CO₂ emissions.
Funding
$4.3M raised to dateRaised to date based on public sources. This may differ from the amount the company actually raised and is based only on what is publicly available on the internet.
Founders
Product
Problem
Industrial processes that require heat in the 150–300 °C range typically rely on fossil‑fuel boilers, exposing manufacturers to volatile fuel prices, high carbon emissions, and limited integration with intermittent renewable electricity.
Solution
Kyoto Group’s Heatcube is a molten‑salt thermal battery that converts low‑cost electricity into high‑temperature heat with 93 % efficiency and stores it for on‑demand steam generation. The system can charge and discharge simultaneously, allowing continuous heat supply while absorbing surplus renewable power. Heatcube is offered either as a fully managed Heat‑as‑a‑Service solution, where Kyoto handles installation, operation, and maintenance, or as a purchasable Heat‑as‑a‑Product unit that integrates directly with existing steam infrastructure. By delivering zero‑emission, low‑cost steam 24 / 7, Heatcube enables industries to replace fossil‑fuel boilers, reduce CO₂ emissions by up to 15 000 t yr⁻¹, and achieve energy cost stability.
Target Audience
Primary customers are energy‑intensive manufacturers in food & beverage, chemicals, pharmaceuticals, pulp & paper, and metal processing that need reliable process heat and seek to decarbonize their operations.
Features
- Molten‑salt sensible heat storage with 25‑year design life and 99 % charging efficiency
- 93 % overall energy efficiency from electricity to usable heat
- Simultaneous charge and discharge capability for uninterrupted steam supply
- Plug‑and‑play modular unit that integrates with existing steam networks
- Optional Heat‑as‑a‑Service model providing turnkey installation, operation, and maintenance
- Ability to respond to grid price signals and provide ancillary services for additional revenue
- Certified, zero‑emission operation with no pressurized steam vessels