The Libre Solar designs are for implementing renewable energy systems so electrical power can be generated distributed, locally and regeneratively. It contributes significantly to the renewable energy transition with a buttom-up approach from the people learning and building their own energy systems. The current development takes place in git-based environments (mainly Github). With that the design documentation including CAD files, bill of materials and assembly guidelines as well as user manuals can be shared and accessed openly so everyone can modify and contribute.