1564 MW (South Block) + 961 MW (North Block) | Bondada Group

Grid Compliance

The awarded capacity includes:

  • 1564 MW – South Block
  • 961 MW – North Block

Both blocks are interconnected at a 400 kV Point of Interconnection (POI).

This is one of the largest renewable grid integration assignments currently under execution.

Project Overview – 400 kV Grid Connectivity Validation

The project involves complete Grid Connectivity and Grid Compliance validation for large-scale solar integration.

At 400 kV interconnection level, modelling precision directly impacts regulatory approval timelines.

The objective is to validate plant performance under:

  • Steady state grid conditions
  • Power quality requirements
  • Voltage and frequency disturbances
  • Multi-developer integration scenarios

Scope of Work – Grid Compliance Studies

  1. Steady State Analysis (RMS – PSS®E)
  • Reactive Power Capability validation
  • Voltage variation studies at 1.05, 1.0 and 0.95 pu
  • Power factor validation from 0.95 lag to 0.95 lead

This confirms reactive power support capability at the POI.

  1. Power Quality Study (EMT – PSCAD)
  • Harmonic analysis
  • DC current injection assessment
  • Flicker analysis

Power quality compliance at 400 kV is critical for CTU approval.

  1. Dynamic Stability Studies (RMS & EMT – PSSE & PSCAD)
  • Low Voltage Ride Through (LVRT)
  • High Voltage Ride Through (HVRT)
  • Frequency Ride Through capability
  • Active Power Ramp Rate validation
  • Dynamic Reactive Power Support (DPRS)
  • Frequency response test with ±0.03 Hz dead band
  • Droop validation at 3% and 6%
  • Ramping capability demonstration (+10% per minute limit)

These simulations validate plant behaviour during real grid disturbance conditions.

Multi-Developer Model Validation at 400 kV POI

The assignment includes combined validation of multiple developer models connected to a common 400 kV interconnection point.

Scope includes:

  • Dynamic model integration
  • System-level coordination
  • Combined response validation
  • Compliance alignment with Grid Code requirements

Such large-capacity integration requires structured modelling and disciplined simulation workflow.

Deliverables

The project deliverables include:

  • Steady State Study Report
  • Power Quality Study Report
  • Dynamic Study Report – PSSE
  • Dynamic Study Report – PSCAD
  • Benchmarking Report
  • Native Simulation Files

Execution Timeline

The complete scope will be executed within a 10-week schedule from receipt of final inputs.

Structured execution methodology ensures timely submission and approval support.

Strengthening Renewable Grid Integration in India

Large solar projects connected at 400 kV demand:

  • Accurate RMS and EMT modelling
  • Reactive power performance validation
  • Power quality compliance
  • Ride-through performance confirmation
  • Frequency response and ramp rate verification

Through this award from Bondada Group, Power Projects continues to support large-scale renewable developers with technically sound, approval-ready grid compliance studies.