Storage Benchmark
The Value of Supercapacitor Energy
Storage Is Becoming Increasingly Prominent
TIGSTOR Energy Storage
Application Scenarios
Grid Side
Reactive Power Compensation
Grid Frequency Regulation
Generation-Side
System Frequency Regulation
Inertia Support
Renewable Energy Grid Connection
User-Side
Improving Power Quality
Load Energy Saving
Energy Storage Solutions Application Scenarios
Generation Side
Grid Side
User Side
System Frequency Regulation & Renewable Energy Grid Integration
Supercapacitors can support frequency regulation of thermal power units. Conventional thermal units respond slowly to grid regulation, with high wear and limited accuracy. A supercapacitor energy storage system responds quickly and, when integrated with thermal units, improves response speed and regulation performance while increasing ancillary service revenue.
Reduce standard coal consumption for thermal power generation units
The energy storage system is connected to the step-up transformer of the thermal power plant and dispatched by the plant
Improve the unit’s primary frequency regulation and inertia response capability
Reduce the number of unit frequency regulation actions and extend unit service life
Improve the unit’s frequency regulation K-value index and increase operator revenue
Active/Reactive Power Compensation & Independent Energy Storage Power Station
Supercapacitor-based solutions provide active/reactive power compensation and support independent energy storage power stations. They deliver equivalent power performance at lower investment and shorter construction periods than conventional synchronous condensers, effectively mitigating transient issues in weak grids. Combined with batteries, they stabilize grid frequency and ensure safe, reliable operation amid high penetration of new energy.
Short construction period, flexible site selection, and lower investment than traditional synchronous condensers
As an energy storage carrier, supercapacitors feature long cycle life, strong power performance, and high safety
Cover the functions of traditional SVG and provides reactive power compensation for the grid side
Solve voltage fluctuation, current impact, and sudden frequency changes at the generation and grid sides
Support new energy accommodation, peak shaving and valley filling on the grid side
Power Quality Improvement & Load Energy Saving
On the user side, supercapacitor solutions improve power quality to support stable operation of high‑precision equipment in high‑end manufacturing, and recover braking energy for energy saving and cost reduction in high‑energy‑consuming industries, helping achieve carbon peaking and carbon neutrality goals.
Adopt supercapacitors as energy storage, connected to factory mains via converters. It compensates or absorbs power during voltage sag/swell, with 3~5 seconds support per unit
Data centers have strict power quality requirements. Millisecond-level voltage drop causes data loss; supercapacitor-based second-level UPS realizes fast voltage compensation
For fuel cell and diesel generator standalone power units
Such generators cannot respond instantly to sudden load power changes; supercapacitors connect to busbar via PCS
Supercapacitors provide real-time response to abrupt load fluctuations
Generation Side — Thermal Power and Energy Storage
Frequency Regulation Data
Project unit configuration: two 330 MW cogeneration units integrated with a hybrid energy storage system of 4 MW supercapacitors + 5 MW lithium batteries.
Trial operation started on April 24. By October 24, the unit’s Kp value had increased from about 2.5 to 3.8. The K1 value rose from 1.1 to 1.3 (limit: 1.3), while K2 reached about 1.65 and K3 about 1.8. The Kp value is now stable at 3.6–3.9, with peaks above 4.0, ranking among the best local units.
Recent one-month data show that the supercapacitor contributed about 48% of the mileage, accounting for 13% of the electricity contribution, with an average of 83 full-capacity charges and 81 full-capacity discharges per day.
According to owner-provided data: Kp performance increased by about 1.5×
Trial operation started on April 24. By October 24, the unit’s Kp value had increased from about 2.5 to 3.8. The K1 value rose from 1.1 to 1.3 (limit: 1.3), while K2 reached about 1.65 and K3 about 1.8. The Kp value is now stable at 3.6–3.9, with peaks above 4.0, ranking among the best local units.
Recent one-month data show that the supercapacitor contributed about 48% of the mileage, accounting for 13% of the electricity contribution, with an average of 83 full-capacity charges and 81 full-capacity discharges per day.
According to owner-provided data: Kp performance increased by about 1.5×
| Month | Clearing Price (RMB) | Kp | Frequency Regulation Compensation (thousand RMB) |
| 5 | 9.5 | 3.26 | 5,263.8 |
| 6 | 8.87 | 3.47 | 6,339.0 |
| 7 | 7.19 | 3.79 | 6,057.5 |
| 8 | 6.19 | 3.47 | 4,215.7 |
| 9 | 8 | 3.61 | 4,642.8 |
| 10 | 8.71 | 3.63 | 4,015.4 |
