G99 Reactive Power Calculator
This calculator provides initial guidance on G99 reactive power requirements. For detailed compliance studies and grid connection support, please contact Decerna’s grid connection experts.
Generator Parameters
Common Configurations
Minimum Power Factor (Leading):
0.95
Minimum Power Factor (Lagging):
0.95
Required Q/Pmax Range:
±0.33
Operating Point:
P: 8.0 MW, Q: 0.0 MVAr
Compliance Status:
Calculating…
Description
A key requirement of G99 is that generating units must be capable of operating at specific power factors to help maintain grid stability. This calculator helps developers understand the reactive power requirements for their generation project based on its type and size. While not a replacement for detailed studies, it provides useful initial guidance for planning purposes.
Features:
- Determines required reactive power range
- Shows graphical power factor requirements
- Explains G99 compliance requirements
- Helps with initial equipment specification
The basic calculation steps:
- Based on rated active power (P), calculates required reactive power (Q) range
- For Type B-D: Q = P * tan(arccos(0.95)) for power factors of 0.95 leading/lagging
- Displays results in both numeric and graphical (PQ diagram) format
- Shows voltage-dependent requirements where applicable
