Exaᕽ New Energy New Carbon Dioxide Energy Storage System

The world's first new CO₂ energy storage system

Exaᕽ New Energy carbon dioxide energy storage is a gas-liquid mutual rotation, two-state collaborative energy storage technology that does not rely on geological conditions, has low pressure and temperature levels, high reliability, and low cost. The basic principle is to use excess electricity during the low electricity consumption period to compress carbon dioxide gas at room temperature and pressure into a liquid, and store the heat energy generated during the compression process; During peak electricity usage, the stored heat energy is used to heat liquid carbon dioxide into the gaseous state, driving a turbine to generate electricity.

 

The Exaᕽ New Energy carbon dioxide energy storage system has completely independent intellectual property rights, and has a wide range of power levels, capacities, and regional adaptability. It has excellent economic benefits in large capacity long-term energy storage, especially suitable for 10MW, 100MW, and 1000MW long-term energy storage systems. The key core technologies for system design and manufacturing are fully autonomous and controllable, and the nationwide production of power equipment has been achieved.

Conversion of electrical energy into liquid CO₂ internal energy

Drive the compressor to compress carbon dioxide gas at room temperature and pressure into a liquid state, and store the liquefied carbon dioxide in a high-pressure device.

Storage of thermal energy generated during CO₂ compression process

Collect the thermal energy generated during the process of compressing carbon dioxide and store it in a heat storage device.

The internal energy and stored thermal energy of liquid CO₂ are converted into electrical energy

Utilizing low-grade heat to gasify liquid carbon dioxide, the stored heat promotes its expansion and drives a turbine to rotate for power generation.

Store CO₂ gas at room temperature and pressure

Store the expanded carbon dioxide gas at room temperature and pressure in a low-pressure gas storage unit for the next cycle.

Advantages Exaᕽ New Energy Technology of CO₂ Energy Storage System

Low Cost

The construction cost is significantly lower than that of pumped storage. The cost of system can be as low as 0.2 RMB/kWh

High Efficiency

The design efficiency of electricity to electricity is 82% | The efficiency of the system is over 60%, and it will be gradually improved.

No Geographical Restrictions

No geographical restrictions No special requirements on geographical environment and climatic conditions, suitable for global equipment

High Capacity

Energy storage time is 16+ hours | Energy release power can reach GW level

Long Life

The design life of the system is 30 years | The number of cycles in the design life exceeds 10,000 times

No attenuation

During the system life cycle, there is no attenuation in efficiency and no attenuation in capacity

Safe and pollution-free

Carbon dioxide is used as the working mass, no risk of explosion | no pollution residue

Make full use of waste heat

Using low-quality waste heat to improve system efficiency

Easy to upgrade

The charging power and duration can be expanded smoothly | The cost of upgrading is low

Application

Power side energy storage

  • Supporting wind and photovoltaic power stations
  • Supporting the entire county photovoltaic project
  • Electricity spot market
  • Flexibility renovation of thermal power plants
  • Integration of source, network, load, and storage (electrolytic water to gas)

Grid side energy storage

  • Urban power grid
  • Microelectronic system

User side energy storage

  • High energy consuming enterprises (building materials, metallurgy, petroleum, chemical industry, etc.)
  • Data Center