Electricity sharing: using your own generation across multiple sites
Solar PV can serve more than the building where it is installed.
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Building sustainable energy systems for the future
About us
From generating energy to installing building systems and keeping them running
About us
For over 30 years, we’ve designed, installed and maintained solar PV systems, electrical installations and building services, alongside our facilities management work. We look after every stage, from initial design and installation to long-term operation.
Why BK
30+
years of experience
Over three decades, we’ve delivered large-scale projects in Slovakia and abroad for banks, public bodies, offices, industrial sites and retailers.
One partner throughout the life of your project
We design, install, maintain and operate systems for the long term. You work with one partner who knows your project from the first design through to future upgrades.
ZSE Group
As part of ZSE Group, one of Slovakia’s largest energy groups, we have the backing to offer continuity and take responsibility for quality on every project.
What we do
Solar & Electrical Solutions
We install rooftop and utility-scale solar PV, battery storage, EV chargers and electrical systems for large buildings.
Building Energy Solutions
We install and upgrade heating, cooling, ventilation and smart building controls to improve efficiency and comfort and reduce costs.
Facility
Management
We provide building maintenance, equipment servicing and energy management for banks, retail chains and industrial businesses.
Featured projects
Explore selected projects from across the public sector, offices, retail and industry.
All projectsInterested in our services?
Contact us
Our clients
Blog articles
Agrivoltaics: growing crops and generating electricity on the same land
Farming and solar power can share the same land.
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Connecting commercial solar PV to the grid: what to check before installation
A suitable roof and enough sunlight are only part of planning a solar project.
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