Civic tech · Energy · 2012 – present

A free smart energy management solution for cities

The GOSJAR app has helped document more than 300,000 problems with public lighting in Zagreb alone — and it’s free for every interested city and municipality.

300k+
Issues logged
12 yrs
In production
Free
For municipalities
Collage of two screens in the GOSJAR app: event overview and replaceable parts.
The solution

GOSJAR: smart and efficient energy management

During an era of skyrocketing energy costs and an unprecedented energy crisis, how can public lighting be managed more efficiently?

GOSJAR answers that — an app offered completely free to Croatian cities and municipalities.

Malfunction reports, energy consumption statistics, repair counts — GOSJAR covers all of that, and helps communities manage their energy systems rationally.

Over 12 years of use in Zagreb, it has documented more than 300,000 public lighting service problems.

GOSJAR is built to last — an app that holds lasting value for the community it serves.

A street corner with old lighting fixtures on two buildings, with a pedestrian crossing in between.
The problem · GOSJAR

Track concessionaire performance and manage public lighting smarter

Energy costs have risen more than ever, and the problems caused by the global energy crisis threaten the modern way of life as we know it.

While citizens fight rising utility bills, local governments face the same surge in energy prices — making rational energy management one of their key imperatives for the years ahead.

A potted plant and books on a desk in an office.
Office interior detail.
Why it matters

Blind spots in the field

Once a city or municipality entrusts public lighting to a concessionaire, it becomes hard to track their performance, mistakes, and the real state on the ground — especially if the check relies only on a GIS “snapshot in time.”

Our commitment

That’s why GOSJAR is given away — for free — to every interested city and municipality.

The app gives local governments better oversight of concessionaire operations and a clearer picture of the real state on the ground.

Pricing

Using the app brings no hidden costs

The app is designed to serve citizens and communities — not extract revenue from them.

Two screenshots of the GOSJAR web app: the login page and the dashboard with charts and data.
Capabilities

What GOSJAR makes possible

The app provides a detailed view of:

  • statistics on public lighting malfunctions
  • statistics on public lighting repairs
  • statistics on spare parts used on public lighting within a given period or by location
  • monitoring of the load balance behavior

A new topology option lets users review electricity consumption per individual metering point.

GOSJAR dashboard showing an overview of events.
Proof · Zagreb

Zagreb has been managing public lighting smartly for over a decade

The app has already had major impact in Croatia’s capital.

The City of Zagreb has used GOSJAR for more than 12 years. Over 300,000 faults and events in the public lighting system have been logged through it, enabling successful control over electricity consumption costs.

For business

Custom adaptations for business clients

Business clients can also get tailored versions of the application — built on the same foundation that has powered Zagreb’s public lighting for over a decade.

Get in touch

Contact us

You’ll learn how to start using GOSJAR in just a few simple steps.

Reach out with no obligations — we won’t spam your inbox or chase you with calls.

Start now
Two women walking through a modern office lounge.