ZR

ZEL-EN, razvojni center energetike

ZEL-EN, razvojni center energetike d.o.o.

Krško, Slovenia

HydroBiomassBiogasHydrogenSolarGeothermalOtherLimited company
Founded 201111-50 employees
Profile last updated: March 10, 2026

About

Founded in 2011, ZEL-EN, razvojni center energetike is a limited company headquartered in Krško, Slovenia with approximately 11-50 employees specializing in Hydro, Biomass, Biogas.

ZEL-EN, razvojni center energetike d.o.o. is a Slovenian energy development centre founded in 2011 to strengthen R&D in the energy sector and knowledge exchange between industry and development institutions. Its primary activity is research and development of new technologies and products in renewable and sustainable energy, including hydro turbines and pumps, biomass, biogas, hydrogen, photovoltaics, sustainable construction and nuclear technology. It also offers contracted energy and water efficiency services covering audits, design, implementation, operation and financing. The company operates from its development institute in Krško and from business units at partner locations.

Headquarters

Krško, Slovenia

Founded

2011

Employees

11-50

Company type

Limited company

Focus areas

renewable energy R&Dhydro turbinesbiomasssustainable constructionenergy performance contractingenergy efficiencywater efficiencyhydrogenbiogasphotovoltaics

Products & services

Business models

ESCO

Value chain

R&DDevelopmentEngineeringConsulting

Service areas (2)

  • Energy and water efficiency services

    Comprehensive contracted services to reduce energy and water use and supply costs, including energy audits, technical solutions, project design, implementation, operation during the contract period, energy bookkeeping, and financing.

  • Research and development

    Research, development and optimisation of hydro turbines, pumps, auxiliary equipment, biomass processes, and sustainable construction, plus related analytical laboratory services.

Locations

Headquarters

Vrbina 18, 8270, Krško, Slovenia

Operating locations (5)

  • Vrbina 17, Krško, Slovenia
  • Leskovška cesta 2a, Krško, Slovenia
  • Tovarniška ulica 18, Krško, Slovenia
  • Hermanova cesta 1, Sevnica, Slovenia
  • Litostrojska cesta 50, Ljubljana, Slovenia

Credentials & affiliations

Industry memberships

Društvo jedrskih strokovnjakovNUGENIA

Partnerships

Kostak (PE Krško), Litostroj Power, Tanin Sevnica, Jedrska tehnologija (PE), Vipap (PE Krško)

People

Management & team (5)

+ 1 more

More Hydro Companies

View all

More Renewable Energy Companies in Slovenia

View all