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Ladies and Gentlemen, from May 25, 2018, the Regulation of the European Parliament and of the Council of the European Union 2016/679 of April 27, 2016 (GDPR) has been in force. We need your consent to the processing of your personal data, including those stored in cookies. Below is the full range of information on this topic.

By clicking the 'Allow all' button, you consent to the use of your data. I agree to the storage of the so-called cookies and for the processing of my personal data left when I use products and services provided electronically as part of websites, services and other functionalities, including information and other parameters saved in cookies for analytical purposes by Dalkia Polska Sp. z o. o., entities of the Dalkia capital group and business partners of the Dalkia group.

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Photovoltaic farm operation & maintenance (O&M)

Photovoltaic (PV) farms operation is critical to ensure the efficiency, reliability and longevity of a solar energy system. A solid maintenance strategy helps you maximize energy production, minimize downtime and effectively protect your investment.

We offer comprehensive operation of PV farms, which includes both daily operational activities and advanced maintenance works.

Operational activities

These are continuous activities that ensure optimal and safe functioning of the PV system:

Performance monitoring and analysis

We use SCADA systems and remote monitoring to track energy production in real time. Thus, we can quickly detect any anomalies, such as sudden power drops.

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Grid management

We maintain constant communication with the power grid operator, manage reactive power and voltage regulation, and, if necessary, limit or shed the load.

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Environmental monitoring

We integrate data with weather stations (examining radiation intensity, temperature, wind) and analyze the condition of soil and vegetation for ground-mounted systems.

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Reporting and documentation

We produce periodic (daily, weekly and monthly) performance reports, maintain incident and maintenance logs, and maintain regulatory compliance documentation.

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Maintenance activities (Maintenance)

Our maintenance services cover two key areas:


1. Preventive Maintenance (Planned)

Performed regularly to avoid equipment failure. Includes:

  • Visual inspections: We check photovoltaic modules (for cracks, delaminations, discoloration), inverters (alarms, indicator lights), cables and connectors (corrosion, wear, rodent damage) and mounting structures (rust, loose screws).
  • Module cleaning: We remove dirt, dust, bird droppings and snow, adjusting the frequency of washing to the specific location of the farm.
  • Electrical and thermographic tests: We perform specialized insulation resistance tests and thermographic (IR) inspections to detect hidden faults (so-called hot spots).
  • Vegetation control: We ensure regular mowing of the grass around the installation.


2. Corrective Maintenance (Unscheduled)

This is emergency maintenance, activated in the event of faults or sudden drops in performance:

  • Quick repair and replacement: We efficiently replace damaged components (inverters, fuses, switches, modules, connectors) and repair faulty wiring.
  • Software updates: We maintain the latest firmware for inverters and monitoring systems.

Advanced hardware and performance analytics

To professionally diagnose and operate photovoltaic farms, our team uses top-class equipment: infrared thermographic cameras, insulation resistance testers and drones that allow for quick visual and thermal inspection of large-scale installations.

We constantly monitor the key performance metrics of your power plant. We analyze the performance factor (PR - the ratio of actual to theoretical performance), power utilization rate, downtime and average repair time. We also carefully maintain full technical documentation, calibration records of test equipment and warranty records.