In recent months three anticipated documents were published, each drawing the attention of investors in new electricity generating facilities in Europe. On 4 April the European Commission revealed a detailed analysis titled the “Nuclear Illustrative Programme”, providing an overview of the full vertical chain of nuclear technology - from mining through power plants to waste management - and covering the main economic features of new potential nuclear investments. The Commission’s state aid sector inquiry into electricity capacity mechanisms was then published on 13 April. Lastly, the February publication of the International Energy Agency (IEA), "Re-powering Markets" is also informative. Its subtitle aptly reflects the opinion of the agency on the most critical challenges of the forthcoming period: "Market design and regulation during the transition to low-carbon power systems".