Grid Connection

Across the globe, the electricity network is evolving to reduce carbon emissions. Increasing the proportion of energy supplied by renewables requires a rethink of many fundamental design principles, to ensure the electricity network continues to operate reliably.

Tesla’s specialist engineers are widely experienced with the grid and network connection of synchronous and inverter-based generation, from concept evaluation all the way through to commissioning.

The steps we undertake for a new connection include:

Project Management

  • Stakeholder liaison
  • Facilitation of testing

Concept Evaluation

  • Feasibility Studies.


Connection Application (Preparation and Due Diligence)

The process for connecting new generation in New Zealand and Australia is subtly different, and requires deliverables to be prepared in the format expected by the relevant stakeholders. These activities include:

  • Connection studies report
  • Power quality analysis
  • Asset Capability Statements (ACS)
  • Equivalence documents
  • Connection studies report
  • Power quality analysis
  • Voltage control strategy
  • Power Systems Design and Settings Datasheets
  • Dynamic Model Acceptance Testing

Detailed Design (across both countries)

  • Functional design specification of plant controller
  • Primary and secondary balance of plant design/specification
  • Wide area protection studies
  • Specialist protection design/review (anti-islanding, fast runback, interlocking schemes)

Select a button for more details of our related design services:


Again, the process is different for New Zealand and Australian connections:

  • Electricity Industry Participation Code (EIPC) test plan
  • Operational test plans
  • Load schedules
  • Model validation
  • Test plan & procedure
  • Load schedules
  • Hold point testing/ R2 validation
  • Primary Frequency Response (PFR) assessment/testing

Tesla has broad experience using the prevalent power analysis software used in each region (including PowerFactory, DSA Tools (PSAT/VSAT/TSAT), PSS®E and PSCAD). As each software has different strengths, it is common for more complex projects to use multiple packages to evaluate different aspects of the generator performance.