The photovoltaic market in Hungary and across Central and Eastern Europe is expanding rapidly. Strong policy support, rising energy demand, and ambitious renewable targets are driving the development of large-scale solar projects throughout the region. Although the growth potential is significant, the technical and financial expectations associated with every project are extremely demanding. This article discusses how the Clenergy D1P single-axis solar tracker was successfully deployed in a 20MW utility-scale ground-mounted project in Hungary despite all these challenges.

Core Project Challenges

While delivering the 20MW utility-scale project in Hungary, the site presented a combination of structural, financial, and regulatory challenges that demanded a carefully optimised approach. The core challenges of this project included:

1. Strict Civil Works Control

During the installation of the smart solar tracker, one of the primary objectives was to minimise ground disturbance. Excessive excavation and foundation work would increase initial investment and extend construction timelines. The project called for a solution that could streamline civil complexity while maintaining structural stability. On large utility-scale sites, even small reductions in excavation volume or pile quantity can translate into meaningful savings in both time and capital expenditure. Every design choice had to contribute to faster deployment and tighter cost control without compromising durability.

2. Demanding Load and Precision Design Requirements

The site was subject to significant environmental loads, including wind speeds of 23.6 meters per second and snow loads of 1.25 kilonewtons per square meter. These conditions required/necessitated a differentiated, zone-based structural design tailored to varying wind exposure levels across the site. Uniform structural assumptions would have led to material overuse in low-pressure zones and insufficient reinforcement in higher exposure areas.

3. Dual Constraints of Standards and Cost

Compliance with Eurocode standards was mandatory, yet the project also demanded strict overall cost optimisation across both the racking system and civil works. Meeting European structural criteria while keeping the project economically viable relied on an integrated engineering strategy.

Clenergy's Customised Solution

Addressing the technical and financial constraints of the Hungary project called for a solution tailored specifically to site conditions. Our approach combined structural precision, construction efficiency, and intelligent tracking control. Here is how we successfully delivered this project:

1. Scientific Wind Protection

We implemented a zonal wind design strategy based on verified wind tunnel testing. Instead of applying uniform structural assumptions across the entire site, we differentiated wind exposure zones. Windward areas were reinforced to withstand higher pressure, while central zones avoided unnecessary over-design. This precise allocation of structural strength improved safety while controlling material use.

2. Structural Optimisation

To meet the project’s requirement for the longest possible table configuration, we engineered the system to accommodate an increased number of modules per row within wind and load limits. Longer tables reduce the total number of piles, which directly cuts both racking hardware and civil costs, such as excavation and backfill. Achieving this balance demanded advanced structural calculations, particularly for higher clearance and complex stress distribution. Careful engineering ensured that the extended table length improved system efficiency without compromising structural safety or long-term durability.

3. Direct Ramming Technology

Pile installation was executed using direct ramming. This method accelerates construction, minimises ground disturbance, and curtails overall civil expenditure. For a utility-scale project of this size, faster deployment translated directly into cost and schedule advantages.

4. D1P Single-Axis Tracking System

At the core of the project was our D1P single-axis solar tracker system, designed to enhance generation performance while maintaining operational reliability. Here are the core features of this single-axis solar tracker.

• Precise Tracking

The D1P single-axis tracker integrates astronomical tracking algorithms with closed-loop control. This combination guarantees accurate positioning of modules throughout the day, maximising energy yield and improving long-term revenue performance.

• Simplified Control

The simplified controls of this single-axis solar tracker reduce system complexity. A single master controller wirelessly manages up to 128 tracker rows. This significantly diminished wiring requirements, simplifies commissioning, and alleviates ongoing operation and maintenance demands.

• Proactive Safety

During high wind conditions, modules automatically move to a protective stow angle. In heavy snowfall, the solar panel tracker system activates a snow-shedding mode to mitigate structural stress. These automated responses ensure continuous operational safety under changing environmental conditions.

Outcomes and Value

Completion of the 20MW Hungary plant marked the beginning of sustained operational, economic, and environmental returns. Here is how:

1. Intelligent O&M Enablement

The project was equipped with an integrated SCADA system that offers full visibility of single-axis solar tracking system performance. Real-time data collection enables continuous awareness of system status across the entire plant. Remote centralised monitoring streamlines on-site labour requirements and enables faster response times. Centralised data visibility also facilitates more informed operational decision-making throughout the plant lifecycle. More importantly, the system enables lifecycle fault alerts and predictive diagnostics. Instead of responding only after a failure occurs, operators can identify irregularities early and intervene before performance is affected. This shift from reactive repair to proactive prevention improves plant availability and strengthens long-term operational efficiency.

2. Multi-Dimensional Value Creation

• Economic Benefit

Through structural optimisation, zonal wind design, longest-table configuration, and reduced civil works, the project achieved meaningful cost efficiency. The combination of lower hardware usage and faster construction directly drove down the levelized cost of electricity. Improved generation performance from precise tracking further enhanced return on investment.

• Technical Benchmark

The project demonstrates full compliance with Eurocode requirements while addressing high wind exposure conditions. The differentiated structural approach provides a replicable model for other European markets where wind pressure and regulatory standards are equally demanding.

• Environmental Contribution

By delivering reliable renewable capacity in Hungary, the project advances the country’s green energy transition. Similarly,  it contributes to broader carbon reduction objectives aligned with regional and global sustainability commitments.

A Proven Partner for Your Next Solar Project

The successful deployment of the 20MW Hungary plant is more than just a project milestone; it is a validation of Clenergy's ability to deliver precision-engineered solar tracking solutions under demanding European conditions. By integrating intelligent control, structural optimisation, and cost-efficient construction, we have created a replicable model for developers seeking to balance performance with profitability. Whether you are facing high wind loads, complex site constraints, or strict financial targets, Clenergy has the engineering expertise and proven technology to support your goals.