Hidroelektrarne na Spodnji Savi, d.o.o.

Hidroelektrarne na Spodnji Savi, d.o.o. (commonly abbreviated HESS) is a Slovenian energy company dedicated to harnessing the hydropower potential of the lower Sava River. Its central undertaking is the construction and operation of a chain of five hydroelectric power plants along the lower course of the Sava, a project described on its own website as the company's largest and central project. Four of these plants — HE Boštanj, HE Arto–Blanca, HE Krško and HE Brežice — are already in operation and generating electricity, while HE Mokrice is planned to complete the chain as its final link. The company positions itself around sustainability, responsibility, development, cooperation and knowledge. On its official homepage it states that it has been building energy solutions that connect people and nature for more than 17 years, and it commits itself to a responsible and reliable energy supply for the benefit of people, the environment and all generations. Its slogan, "Clean energy from the Sava – for a safe and sustainable future," encapsulates this positioning. HESS's activities span three broad areas highlighted on its website: water, meaning responsible water management; energy, framed as a transition "from green energy to a blue future"; and the environment, covering sustainable resource management and the protection of natural resources and biodiversity. The company also maintains live webcams at several of its power plants, reflecting a degree of public transparency and engagement with local communities. As a d.o.o. — a Slovenian limited liability company — HESS is not listed on a stock exchange. Its ownership structure is not detailed in the available evidence, though the scale and strategic nature of the lower Sava hydropower chain mean the company operates within Slovenia's broader energy sector and engages with stakeholders at local, national and international levels, as its website notes. The company is headquartered in the Krško area, the region where several of its plants are located. Beyond construction, HESS's work involves the long-term operation and maintenance of the existing plants, management of water reservoirs and their multipurpose role (which its news section notes becomes increasingly important during droughts), and attention to environmental and biodiversity concerns associated with river regulation. The completion of HE Mokrice remains the key outstanding milestone in the company's flagship project.

Hidroelektrarne na Spodnji Savi, d.o.o. (HESS) was established to develop and operate a coordinated chain of hydroelectric power plants on the lower Sava River in Slovenia. According to its official website, the company has been building energy solutions that connect people and nature for more than 17 years, indicating that its operational history dates back to the mid-2000s. The company's central and largest project is the construction of a chain of five hydroelectric plants on the lower Sava. The first plants in the chain — HE Boštanj, HE Arto–Blanca, HE Krško and HE Brežice — were progressively completed and brought into operation, each adding generating capacity and helping to realize the energy potential of the lower Sava. These plants are run-of-the-river facilities that use the river's flow and constructed reservoirs to generate renewable electricity. The final element of the chain, HE Mokrice, is planned to complete the overall design for the sustainable development of the river. As of the available evidence, HE Mokrice has not yet been completed, and its realization remains the company's key outstanding project. Throughout its development, HESS has framed its mission around sustainability and circular economy values, responsibility toward the environment and the resources entrusted to it, intensive investment in development, cooperation with stakeholders at local, national and international levels, and the power of knowledge. Its slogan, "Clean energy from the Sava – for a safe and sustainable future," reflects this long-term orientation. The company operates as a Slovenian limited liability company (d.o.o.) and is headquartered in the Krško area, close to several of its plants. Its activities extend beyond electricity generation to include responsible water management, sustainable resource management, and the protection of natural resources and biodiversity. It also maintains live webcams at several plants and publishes news on topics such as the role of reservoirs during droughts, the effects of heat waves on electricity production, and the interaction between natural processes and human influence on the Sava.

• Company has been building energy solutions connecting people and nature for more than 17 years (as stated on its website)

• HE Boštanj in operation

• HE Arto–Blanca in operation

• HE Krško in operation

• HE Brežice in operation

• HE Mokrice planned as the final link completing the chain of five hydroelectric plants on the lower Sava

Clean, sustainable hydropower from the lower Sava River, combining responsible water management, renewable energy and environmental protection.

• HE Boštanj

• HE Arto–Blanca

• HE Krško

• HE Brežice

• HE Mokrice

1. 1Domov - HESS d.o.o.he-ss.si
2. 2Hidroelektrarne na Spodnji Savi, d.o.o. - Wikidatawikidata.org