Ptolemaida

Ptolemaida is a large city in the regional unit of Kozani, Western Macedonia. It is located on a plateau and is one of the most important urban and industrial centers in the region.

The city is especially known for its role in Greece's energy sector, having been a major lignite mining and power generation hub for decades. It also features modern infrastructure, educational institutions, and strong commercial activity.

Ptolemaida serves as a key hub of Western Macedonia and is closely linked to the country's energy history and transition.