Europe's marginal difficulty: despite increased investment in the power sector across Europe, a recent report shows decreasing capacity margins with security of supply becoming an increasing problem, writes Nigel Blackaby.(Analysis)(Industry overview)

For the last eight years the consulting firm Capgemini has published its European Markets Observatory. The latest report, covering 2005 and the start of 2006, gives an update on the main indicators within the electricity and gas markets, in order to monitor the supply and demand balance and towards the establishment of an open and competitive market in Europe.

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This year, the report's findings in respect of the electricity industry do not make good reading. It predicts that recent utility merger and acquisition activity is set to continue and that this will run counter to Europe's desire to see more unbundled markets and free competition. Capgemini says that the trend towards increased energy prices has continued, levels of infrastructure investment have been insufficient, and progress towards improving interconnections has been slow. Despite the issue of security of supply becoming a higher political priority across Europe, the report notes a worrying overall decrease of peak power generation margins.

The report says that, across the UTCE region, the average reserve margin between electricity supply and demand fell to its lowest ever figure of 4.8 per cent in 2005 and early 2006, a full percentage point lower than the 5.8 per cent margin in 2004. The report describes current capacity margins as 'worrying', considering short-term demand. The fall in margin was caused by an upswing in demand for electricity that was not matched by sufficient new operating plants, as well as more extreme weather conditions. These included the record-breaking high temperatures in the summer of 2005 pushing up usage of air conditioning units across Europe and severe cold spells and low rainfall in Spain and France. The report suggests that parts of Europe are moving in line with some North American states where two major peaks are seen per year, one in the winter and one in the summer.

Some improvements in theoretical capacity margin across Europe were noted. Ireland's margin increased 21 per cent, the UK improved by 1 per cent, Portugal by 4 per cent. Greece, Italy and Holland added 6 per cent new capacity and Germany added 4 per cent. Nevertheless, demand as well as growth or shifting peak loads (Spain +15 per cent in peak load from 2004 to 2005, UK +11 per cent, Holland +8 per cent and France +5.6 per cent) are leading to an overall decrease in real margins. This is best illustrated in the case of Spain where a shift in peak load from winter to summer caused a real capacity decreased by 4 per cent despite 5500 MW of new capacity.