How It Works

The engineering behind constant-temperature thermal storage

The Thermal Piston Effect

IsoTES® achieves what was once impossible: constant-temperature output from a single tank. The secret lies in our dynamic thermal piston technology.

1

Cellular Structure

The tank is divided into multiple Cells, allowing precise control over internal temperature distribution.

2

Step-Like Distribution

Unlike gradual mixing, distinct thermal zones are maintained, creating a sharp boundary between hot and cold areas.

3

Dynamic Piston Action

The stratification boundary shifts like a piston during charge/discharge, pushing constant-temperature heat out. (No physical piston—only the thermal piston effect.)

Interactive Simulation
DISCHARGING
Cold Side Hot Side
Temperature
Tank Piston Position

Why IsoTES®?

Key advantages driving industrial decarbonization

Isothermal Output
Constant temperature release
Single Tank Design
Simplified infrastructure
~50% Cost Cut
Lower CAPEX & OPEX
>80% Utilization
Maximized energy density
No Level Control
Reduced complexity
Zero Fatigue Risk
No liquid-level cycling
Multi-Source
Charge with heat or power
Simple Operation
Easy integration
Fully Scalable
kWh to GWh capacity

Basic Types

Three configurations of IsoTES® technology

HTS

IsoTES®

Horizontal Thermal Stratification

Uses an external circulation loop between the tank and heat exchangers. The thermal piston moves horizontally based on charging depth.

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IU

IsoTES®

Internally Unified

Integrates all components within the tank: heat transfer pipes, heating elements, and bubbling lines. Free from TESM solidification risk.

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Hybrid

IsoTES®

HTS + IU Combined

Combines internal heaters for charging and external circulation for discharging. Effective for large-scale applications.

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Ready for the Future?

Join the thermal energy revolution with GIGAette.