DE-RISK aims at supporting the market uptake of renewable energy systems by fostering the adoption of LFMs and unlocking up to 100GW of flexibility in 2030 which will allow a safe and reliable integration of RES in the grid. DE-RISK will achieve this ambitious objective by minimizing the investments and implementation risk through an innovative customer behavior change journey that will increase end users' trust and willingness to participate in the flexibility markets. DE-RISK integrates building, citizen and grids digital twins in its flexibility platform capable of reducing the gap between simulation and real implementation thus mitigating potential technical risks during deployment and operational phase. To maximize DE-RISK impact, innovative multi-sided business models will be developed ensuring multi-benefits, fairness and sustainability for all actors while disruptive financial schemes will be validated for democratizing the access to sustainable investments. Finally, a set of experts will develop regulatory recommendations to support a fair, clear and transparent adoption of LFMs.