Exploring Renewable Energy Slovenia: 5 Amazing Investments by HSE Group
Holding Slovenske Elektrarne (HSE Group), Slovenia’s foremost energy company, is championing the nation’s shift towards a sustainable future with a series of strategic investments in renewable energy. Aligning with the country’s National Energy and Climate Plan (NECP), HSE is leveraging its established expertise while aggressively expanding into innovative technologies. Here are five key areas where HSE is making a significant impact.
1. HSE Group’s Hydropower Dominance in Slovenia
As the cornerstone of Slovenia’s renewable energy production, HSE Group’s hydropower assets are formidable. In 2024, the company’s hydroelectric plants generated a massive 4,127 GWh of clean electricity. This output represents an incredible 68% of all renewable electricity produced in Slovenia, cementing HSE’s role as the leader in the nation’s green energy sector. Continued investment in maintaining and optimizing this powerful hydroelectric foundation remains a top priority.
2. HSE Group’s Expansion into Large-Scale Solar Power
HSE is embarking on an ambitious expansion into solar energy to diversify its portfolio. The group is actively developing new solar power plants designed to significantly boost Slovenia’s photovoltaic capacity. This strategic push is critical for meeting national climate targets and reducing reliance on fossil fuels. By transforming underutilized land into hubs of clean energy production, HSE is paving the way for a sun-powered future. For a deeper dive into the country’s solar landscape, you can review this Slovenian solar energy report.
3. HSE Group Pioneering Floating Solar Technology Initiatives
In a move that highlights its commitment to innovation, HSE is investing in the development of floating photovoltaic (PV) systems. This cutting-edge technology involves installing solar panels on the surface of reservoirs and other bodies of water, offering a dual benefit of generating clean electricity while conserving valuable land resources. This forward-thinking approach positions Slovenia at the forefront of advanced renewable energy applications.
4. HSE Group Advancing Pumped-Storage Solutions
Recognizing that a reliable green grid requires more than just generation, HSE is also investing heavily in pumped-storage hydroelectricity. These facilities act like giant water batteries, storing excess energy during periods of high production (like sunny or windy days) and releasing it back to the grid when demand peaks. This crucial technology ensures grid stability and allows for greater integration of intermittent renewable sources like solar power.
5. HSE Group’s Unified Low-Carbon Strategy for Slovenia
Underpinning these individual projects is HSE’s cohesive and comprehensive investment strategy, designed to accelerate Slovenia’s journey to a low-carbon economy. By orchestrating a multi-faceted expansion across hydro, pumped-storage, solar, and floating PV, the company is implementing a holistic plan that addresses generation, storage, and innovation. This unified commitment, announced in line with the NECP, is the driving force behind Slovenia’s evolving energy landscape.
Sources
- EU-backed solar and storage project moves forward in …
- Holding Slovenske elektrarne d. o. o (HSE)
- Slovenia’s HSE to allot 120 mln euro to renewables in 2025
- Slovenia to Build Europe’s Largest Floating Solar Plant
- ANNUAL REPORT – HSE
- HSE GROUP PLANS AND IMPLEMENTS KEY ENERGY …



