This document outlines a roadmap for achieving an 80% reduction in carbon emissions in the EU by 2050. It details pathways that are sustainable, technically feasible, and have a positive economic impact. These pathways include increasing renewable energy sources like wind and solar to 60-80% of electricity production, deploying carbon capture and storage technology for 20-50% of industry emissions, and using nuclear power for 20% of electricity. It also analyzes the infrastructure needs like increased transmission lines and backup generation capacity to support high shares of variable renewable resources while keeping curtailment of renewable energy low. Cost estimates are provided for the annual capital expenditures needed along with projected costs of electricity generation. The European Commission aims to provide long-term policy