Central Java has taken a step towards a cleaner energy future by encouraging the use of rooftop solar power plants (PLTS) in the industrial sector. This publication thoroughly explores the great potential of rooftop solar power plants in Central Java, from the analysis of supporting policies to case studies of companies that have successfully implemented this technology. In addition, this publication also discusses the challenges faced and innovative solutions to overcome these challenges. With comprehensive and easy-to-understand information, this publication aims to inspire more companies in Central Java to switch to clean energy and contribute to sustainable development.