Eternia Taps Contractor for Poland 30-MW Solar Grid Link

• Eternia selected a contractor for grid-infrastructure on its 30-MW Polish solar farm—delivering substations and connection equipment to speed reliable power evacuation as Poland’s renewables surge.

Polish renewable developer Eternia has selected a contractor to deliver grid-infrastructure works for a 30-MW solar farm it is developing in Poland. The contract covers the design and construction of electrical systems required to connect the project to the national grid.

The scope is expected to include substations, transmission and grid-connection equipment, and related electrical infrastructure to enable reliable, efficient evacuation of power. The project comes as Poland’s solar market grows rapidly, supported by favorable regulation, rising corporate demand and efforts to cut reliance on coal-fired generation. The solar facility is part of Eternia’s wider strategy to expand low-carbon capacity across Poland and will add renewable generation once online.

How will Eternia’s grid-infrastructure contractor enable its 30-MW Polish solar connection?

• Deliver end-to-end grid-connection engineering to meet Polish grid codes and the grid operator’s technical requirements for the 30‑MW export capacity.
  
• Design and build the required high-voltage interconnection works, including transformer and switchgear arrangements that step the plant’s output to the grid connection level.
  
• Construct and commission one or more substations and associated yard equipment so the solar farm can reliably evacuate electricity under normal operating and contingency conditions.
  
• Install grid-connection equipment such as breakers, disconnectors, protection relays, metering systems, and control/auxiliary systems needed for safe, compliant operation.
• Provide protection and control engineering (e.g., protection settings coordination and relay schemes) to ensure fast fault detection and isolation and to protect both the solar site and the national grid.
  
• Build the transmission and cable routing infrastructure required to link the solar facility to the grid connection point, including civil works, cable installation, and termination.
  
• Integrate power quality and grid-support features where applicable (for example, voltage and reactive power management) to help maintain stable grid performance during varying solar output.
  
• Set up and test commissioning regimes covering electrical testing, protection verification, and integration checks with grid-operator interfaces and operational procedures.
  
• Coordinate construction sequencing and interfaces with the solar plant package so electrical systems, civil works, and commissioning timelines align for timely energization.
  
• Manage grid-connection documentation and stakeholder coordination (including utilities and transmission-system operator requirements) to obtain approvals and connect on schedule.
  
• Ensure operational readiness after energization through handover testing, training, as-built documentation, and compliance checks to support long-term performance and reliability.