Smarter Together is the largest EU-funded smart city urban renewal initiative in Vienna and part of the joint smart city lighthouse project of the cities of Vienna, Munich and Lyon. This was funded by the EU as part of the Horizon 2020 research program. The aim is to implant technical and social innovations as well as innovative processes for sustainable urban renewal in selected city districts - including integrated building refurbishments, climate-friendly energy systems and e-mobility. These also contribute to achieving the UN climate goals.