Bitterfeld-Wolfen is a town in Saxony-Anhalt, Germany, formed in 2007 from the merger of Bitterfeld and Wolfen. It is located near the Mulde River and has a rich industrial history, particularly in the production of chemicals and solar technology. The town is known for its significant role in the East German economy during the 20th century, especially in the photovoltaic industry. Today, Bitterfeld-Wolfen is working on revitalization and sustainable development, focusing on innovation and green technologies to improve the local economy and environment.