ONSA Plus

ONSA Plus combines an online energy-technology store with advice and project solutions for homes and businesses. Based in Košice, it brings together equipment for photovoltaic systems, electricity storage, heat pumps, and electric mobility. Buyers can browse individual components in the catalog or contact the company about a full installation, depending on the project’s scale and requirements.

The photovoltaic section includes modules, inverters, batteries, storage accessories, smart meters, optimizers, monitoring systems, and mounting structures. The range also covers balcony and carport systems, connectors, and electrical installation materials. The catalog lists products for residential and commercial systems; each component must match the installation’s power needs, configuration, and compatibility requirements.

Energy storage has a dedicated place in the company’s offering. ONSA Plus lists batteries and accessories for storing electricity generated by solar panels for later use, as well as commercial storage solutions aimed at operations with higher energy demand. For business projects, its website offers to design a photovoltaic solution and assist with installation-related paperwork. Final sizing and design depend on energy use and site conditions.

Electric mobility is another product line, with portable chargers, wall boxes, cables, and charging stations. The catalog also includes heat pumps and mining equipment such as risers, cables, power supplies, and thermal accessories. This range brings products for different kinds of projects under one supplier; it does not mean every item is interchangeable, so technical specifications and compatibility remain central to any inquiry.

ONSA Plus identifies Palackého 33 in Košice as its headquarters and operational center and lists service hours there. Južná trieda 119 is the address of ONSA Plus s.r.o., which the company site identifies as its registered address. The two references serve different purposes: one is presented as an operating location, the other as the company’s legal address. ONSA Plus also describes operations across several Central and Eastern European markets and maintains country-specific versions of its online store.

For professional customers, the company offers a B2B program with registration, customer accounts, and dedicated sales support, along with terms for installers. Its site also identifies authorized distribution for certain brands, product availability, and support options; those claims apply to the relevant products. The multilingual catalog helps customers in different countries browse its range, while project inquiries provide a channel for needs that go beyond a single purchase.

ONSA Plus connects equipment with advice, from choosing an inverter or charging cable to planning components for a generation-and-storage system. Households can explore solar equipment, batteries, heat pumps, and chargers; businesses have a separate route for larger energy needs. The published information is not a substitute for technical system design, but it helps readers identify product families and frame an inquiry around the right scale.