the economics of new nuclear mean that equity investors are unlikely to earn an adequate return unless there is direct government support to reduce the risks of the project.
In our base case (which uses current industry forecasts for construction costs - €3,100/KW, and assumes on-time completion) new nuclear plants operating as merchant capacity in a pool system, do not offer an attractive risk-reward to investors. We estimate that equity investors would earn a return competitive to that offered by other technologies with at best a 37% probability. We also analyse the economics new nuclear on perhaps more realistic assumptions – higher construction costs and time over runs – and needless to say we find that equity investors are even less likely to earn an adequate return in a merchant market.
We also examine the items that we believe the market might have been too complacent in factoring in:
1. Load factors – a slowdown in demand and a consistent pace of renewable build out could reduce LFs in the European nuclear fleet (existing and planned) to as low as 56% in the next 20 years. This could also affect the economics and value of existing plants.
2. Purchase of sites – we estimate that should utilities have to pay for the sites of new plants, IRRs could fall by 100-300bps; and
3. System reinforcement – build out of new nuclear plants could require substantial investment in the system that could create, at minimum, planning delays.
In the face of all these, we argue that the risk-reward for equity investors only becomes attractive if government share part of the risk via either guarantees prices or volume purchases or support on financing/decommissioning.
This Citigroup 2008 Analysis of new nuclear power also has a "realistic" scenario where they DON'T just accept the rosy claims of the nuclear industry. It is, of course, an even more pessimistic assessment.
They also warn of the effects of efficiency and renewable energy goals:
Consensus view is that electricity demand in the wide European region will grow by 1.5% p.a. over the next couple of decades. This is a view shared by UCTE in its latest System Adequacy Report. Although it is virtually impossible to produce irrefutable electricity demand forecast we are tempted to argue that the risks are on the downside since:
1. During the boom years of 2003-07, when GDP growth was strong and infrastructure investment high on the back of very liquid debt markets and due to the convergence of the new EU joiners, electricity consumption grew by 2.1% p.a.
2. Energy efficiency is likely to become a bigger driver as technology advances and as awareness rises. It is important to highlight that such measures also fall under the Climate Change agenda of governments, which has been one of the driving forces behind the renaissance of new nuclear.
As a result, we would expect electricity demand growth to be in the 0-1% range for at least the next 5 years, before returning to more normal pace of 1.5-2%. We therefore see scope for an extra 346TWh of electricity that needs to be covered by 2020 vs. 2008 levels.
Should EU countries go half way towards meeting their renewables target of 20% by 2020 that would be an extra ca. 440TWh. Even if EU went only half way, which by all means is a very conservative estimate, that would still be ca. 220TWh of additional generation. Under its conservative ‘scenario A’ forecast, UCTE expects 28GW of net new fossil fuel capacity to be constructed by 2020.
On an average load factor of 45% for those plants that’s an extra 110TWh. Therefore under very conservative assumptions on renewables, we can reliably expect an extra 330TWh of electricity to be generated by 2020, leaving a shortfall of 16TWh to be made up by either energy efficiency or new nuclear.
There are currently 10GW of nuclear capacity under construction/development, including the UK proposed plants that should be on operation by 2020. If we assume that energy efficiency will not contribute, that would imply a load factor for the plants of 18%. Looking at the entire available nuclear fleet that would imply a load factor of just 76%. We do believe though that steps towards energy efficiency will also be taken, thus the impact on load factors could be larger.
Under a scenario of the renewables target being fully delivered then the load factor for nuclear would fall to 56%.