Our Blog
Heliostoik BV Achieves ISO 9001 and ISO 14001 Certification with Zero Nonconformities
Gheorghe Cozaru – April 14, 2026
We are proud to announce that Heliostoik BV, the operational company of Heliostoik Group in the Netherlands, has successfully achieved certification in accordance with ISO 9001 (Quality Management Systems) and…
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Revamping Our Online Presence: The Heliostoik Group Website
Heliostoik – March 6, 2026
Welcome to Heliostoik GroupThe Heliostoik Group is an esteemed international company specializing in the operations and maintenance of solar photovoltaic parks throughout Europe, with a strong presence in the Netherlands,…
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Strengthening Grid Safety and Compliance – Our New High Voltage Certifications in NL & DE
Gheorghe Cozaru – February 23, 2026
As the energy transition accelerates across Europe, the safe operation of high‑voltage (HV) electrical infrastructure becomes more critical than ever. Ensuring compliance, minimizing operational risks, and safeguarding personnel and assets…
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Heliostoik extends O&M service contracts for solar parks in Enschede and Voorst
Gheorghe Cozaru – September 23, 2025
We are excited to share some great news: after three successful years of operating and maintaining the solar parks in Enschede and Voorst, Heliostoik has extended its O&M service contract directly…
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New Partnership and projects Announcement!
Gheorghe Cozaru – August 18, 2025
We’re excited to share that Heliostoik has officially signed an Operations & Maintenance agreement with EDPR for the Doetinchem and Lochem 3 PV plants in the Netherlands! 🇳🇱🌱 Our team has already kicked off full-scope O&M services, providing fast,…
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Sunny Days Are for Power—and Precision: Why IV Curve Testing Matters
Heliostoik – July 13, 2025
As the sun shines brighter, solar modules are operating at full capacity—and there’s no better time to assess their true performance. At Heliostoik, we leverage the clear skies for IV Curve measurements,…
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Heliostoik Expands into Romania with a Veteran Local Team
Gheorghe Cozaru – May 20, 2025
Heliostoik, a specialist in solar operations and maintenance (O&M), is proud to announce its official entry into the Romanian market. As the region experiences rapid growth in renewable energy investments,…
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Night Repairs, Maximum Results – The Heliostoik Way
Gheorghe Cozaru – April 24, 2025
While most of the world sleeps, Heliostoik Group is hard at work ensuring solar systems run at their best. 🌞➡️🌙 Over the course of several nights, our dedicated maintenance team carried out…
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Preventive Maintenance in Solar Parks: Why It Matters More Than You Think
Gheorghe Cozaru – April 5, 2025
Preventive Maintenance isn’t just a box to tick—it’s a strategy that saves real kWh and prevents costly surprises. Every time we carry out preventive maintenance, we always find something that could have become a problem:…
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Hot Commissioning Doetinchem finished!
Gheorghe Cozaru – March 25, 2025
Our Team has successfully performed the Hot Commissioning of the PV plant Doetinchem. All the Transformer Stations, inverters and strings have been energized and measured for optimal performance and safe…
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Our Grass Cutting Service: Enhancing Solar Efficiency, Naturally
Gheorghe Cozaru – September 23, 2024
At Heliostoik Group, we are excited to announce an important upgrade to our Solar O&M offering in Hungary: professional grass cutting services. As solar parks continue to expand across the…
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Exciting News – Partnership with Sungrow!
Gheorghe Cozaru – September 4, 2024
We are thrilled to announce that we have officially signed Service Partner Agreements with Sungrow Europe to provide services in the Netherlands, Germany, and Hungary! This strategic partnership marks a…
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Our Team in Hungary is Growing and getting More Specialized
Gheorghe Cozaru – May 15, 2024
We are very proud to announce that another 2 of our technicians have successfully completed a High Voltage Switching course and Exam with practical training completed at a live substation…
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Repairs at full power
Gheorghe Cozaru – April 12, 2024
The Heliostoik Team in the Netherlands has been very busy for the last year and a half by taken care of a broader aspect of Maintenance: Big repairs Due to…
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We had a busy 2023 year
Gheorghe Cozaru – December 6, 2023
Dear wandering reader, Did not hear or see anything from us? No worries, we are still alive! In fact, we are more alive than ever. The main reason that we…
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