Safe Solar Energy
Photovoltaics is a designated technical equipment and is subject to regular inspections. For commercial installations on halls and premises, the risk of fire or injury on the DC side is critical. We provide PV system inspection according to current regulations, including NV 114/2023 and related ČSN standards, whether you operate a small rooftop power plant or a larger corporate installation.
Since NV 114/2023 came into effect, requirements for the DC side of photovoltaic systems have tightened. Older installations may not comply, and the operator bears responsibility for the safety of equipment and personnel.
Faulty connections, degraded cabling, or incorrectly dimensioned protective devices on the DC side pose a real fire risk. Regular inspection reveals these risks before they cause damage.
Without a valid inspection report, you risk significant problems during an audit or insurance claim. Insurers increasingly require proof of PV system inspection as a condition for coverage.
PV system, lightning protection system, and building electrical installation inspections are interconnected. If you order each service separately, gaps in responsibility and unnecessary coordination costs arise.
Indicative prices
Prices are indicative — once the scope is clarified, we confirm the exact price in writing, with no obligation. No hidden items.
| Task | Price |
|---|---|
Initial inspection of a smaller rooftop PV system (up to 10 kWp) Indicative price based on measurement scope and number of inverters | from 3,500 CZK |
Periodic inspection of a corporate PV system (10–30 kWp) Price depends on the number of strings and component accessibility | from 5,000 CZK |
Inspection of a larger premises PV system (over 30 kWp) Price based on installed capacity, number of inverters, and documentation scope | individual calculation |
Inverter check and service (per unit) Visual check, connection tightening, parameter verification | from 800 CZK |
With us, you handle PV system inspection together with electrical installation and lightning protection system inspection. This eliminates the need to coordinate multiple companies and ensures all system parts are assessed in context.
Inspections are performed by Jiří Cach, a certified electrical inspector according to NV 194/2022 §8 with certificate scope E2A and E3A. The certificate is valid for 3 years and its renewal is subject to regular re-examination.
Every inspection report meets the requirements of Act No. 250/2021 Coll. and implementing regulations. You have complete and clear documentation available for audits or insurance claims.
We don't just hand over a piece of paper. We explain what the inspection revealed, what needs to be addressed, and what can wait. We are happy to do the work as if we were doing it for ourselves.
We stand behind the professional quality of every inspection and its compliance with applicable regulations. We explain the inspection report and findings in plain terms and remain available for follow-up questions after handover.
Who this service is for
The service is intended for companies and organizations operating photovoltaic power plants on the roofs of production halls, warehouses, administrative buildings, or on open areas of premises. Also for homeowner associations, municipalities, schools, and other institutions with their own PV system.
The specific periodic inspection interval is determined by the environment in which the PV system operates and the nature of the equipment. We always base this on applicable ČSN standards and decrees. For commercial installations, we recommend consulting intervals individually.
Yes. This government regulation sets requirements for designated technical equipment, including PV systems, and applies to existing installations as well. During the inspection, we verify compliance with current regulations, and if an older installation does not comply, we will propose necessary measures.
The DC side is the highest-risk part of a PV system from a safety perspective. We check the condition of panels, cable routes, connectors, disconnectors, and protective devices. We measure insulation resistance and verify that the installation is protected against overvoltage and short circuits.
Yes, that is one of our main advantages. In a single visit, we can handle the PV system, lightning protection system, and building electrical installation inspection. You save time and money and get complete documentation from one supplier.
We classify each defect by severity and state a proposed rectification deadline in the report. Upon request, we can arrange the repair or recommend a suitable procedure. The equipment must not be operated until defects preventing safe operation are rectified.
The price depends on the installed capacity, number of inverters, extent of cabling, and documentation availability. For smaller rooftop installations, the amount is typically in the thousands of CZK, for larger premises PV systems in the higher thousands. We will provide the exact price after a non-binding inquiry.
