Nuclear energy as a provider of dispatchable back-up capacity has a lot to gain from electricity markets that allocate the costs and benefits of electricity production at the system level in a more precise manner. In liberalised markets, however, their integration represents a challenge as they are not yet competitive against conventional sources of energy. A broad array of quantity- or price-based support mechanisms (IEA, 2008) have therefore been put in place in OECD countries to make renewable energies attractive for private investors by isolating the investment decisions regarding renewable energies from the conditions prevailing in electricity markets.