We had a busy 2023 year

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 did not keep you up to date about what happens to us is that we have been growing. And yes, we call ourselves now Heliostoik Group. "Heliostoik who?", might you ask. But hear us out.


We are very happy to announce that we are more or less over the really challenging phase of kickstarting our Team and operations in Hungary! We welcome in our portfolio of very well managed projects one PV park(made of 2 parts) of about 120 MW about one hour drive East from the beautiful Budapest and another plant of 65 MWp close to the city of Balassagyarmat. We also welcome our Teams in Hungary for being and sticking with us, as well as making all this possible! 


More positive news to come soon!




#heliostoik #heliostoikgroup #solarmaintenance

Heliostoik extends O&M service contracts for solar parks in Enschede and Voorst

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 with the owners. This milestone represents more than just a contract renewal—it reflects the trust and confidence our partners have in our ability to deliver consistent performance, optimal yield, and reliable long-term asset care . Since the beginning of our engagement, our focus has been on providing peace of mind for solar park owners by combining technical expertise, proactive maintenance, and transparent communication . Over these three years, we have not only ensured smooth operation but also strengthened our partnership through results-driven service and shared commitment to sustainability. Extending the agreement directly with the owners is a strong recognition of our team’s dedication and of our long-term vision for O&M services —a vision where reliability, efficiency, and trust form the backbone of successful renewable energy projects. We look forward to continuing this journey, ensuring that the solar parks in Enschede and Voorst remain examples of stable, high-performing renewable assets that contribute to the Netherlands’ clean energy future. 🌞 Here’s to more years of growth, trust, and sustainable energy together.

New Partnership and projects Announcement!

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, professional, and reliable support to ensure maximum uptime and energy yield from day one. ✅ Rapid mobilization ✅ Preventive maintenance in place ✅ Performance-focused service delivery It’s an honor to work with one of the world’s leading renewable energy companies, and we look forward to growing this collaboration even further. 💬 Curious how Heliostoik can help optimize your solar assets? Let’s talk!

Sunny Days Are for Power—and Precision: Why IV Curve Testing Matters

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 , a key technique in solar plant diagnostics. While your modules are busy generating energy, we’re busy collecting the data that tells us how well they’re doing it. 🔍 What Is IV Curve Testing? An IV Curve (current-voltage curve) reveals how a solar module performs under real-world conditions. By plotting the current versus voltage output at various loads, we can detect hidden issues such as: Shading or soiling Cell degradation Wiring or connection faults Mismatches in string performance 🛠️ Predictive Maintenance in Action Why wait for a failure to act? IV Curve analysis lets us spot trends early, allowing preventive interventions before they become costly breakdowns. It’s a pillar of predictive maintenance , and it’s how we keep your assets productive longer. 🦺 Safety Always Comes First Our technicians are trained and certified to perform live measurements under strict safety procedures. Whether it’s isolating circuits, using proper PPE, or ensuring safe work at height— safety is built into our workflow . ☀️ The next time the weather forecast says “Sunny,” think beyond production. Think diagnostics. Think optimization. Think Heliostoik . Want to learn more about IV Curve testing or schedule a diagnostic session? Contact us today!