LONDON, Jan. 8, 2014 /PRNewswire/ -- Day-ahead electricity prices in Continental Europe dipped in December as mild temperatures, strong winds and stormy weather produced wind power records in Germany, France and the U.K., according to data just released by Platts, a leading global energy, petrochemicals and metals information provider.

The Platts Continental Power Index* (CONTI) fell 0.4% in December 2013 to EUR46.80 per Megawatt hour (/MWh) compared to the November 2013 rate of EUR47.00/MWh, when calmer winds and colder temperatures suppressed wind power and boosted electricity prices. Year-over-year the index was up 8.8%.

The price decline was more marked in Germany, where the average day-ahead baseload price in December fell 10% month over month to EUR35.71/MWh. On a daily basis, December was a month of extremes for Germany, with day-ahead base prices closing on December 10 and 11 at less than EUR60/MWh - the highest over-the-counter levels seen all year - only to fall to its lowest level December 24 to EUR0.50/MWh.

"Last month's European power prices demonstrate growing price volatility observed in the winter months due to the capricious nature of the wind," said Henry Edwardes-Evans, Platts associate editorial director of Power in Europe. "When wind power generation drops, Europe's power system often falls back on expensive natural gas-fired generators, and prices rally. When the wind blows, prices can actually turn negative as wind operators continue to feed subsidized power into the grid, despite the market signal."

"The overall effect has been volatile but generally lower wholesale power prices," Edwardes-Evans said. "The average CONTI Index price for 2013 was EUR43.34/MWh, down 13% from 2012's EUR50.00/MWh."

In the U.K., day-ahead baseload power prices were stable in December on a month over month basis, but were up 6.5% year over year. With only two cable interconnections to France and the Netherlands, the U.K.'s exposure to mainland European power surpluses is limited, and U.K. power prices have been significantly higher than in other northwest European markets.

U.K. day-ahead natural gas prices also extended gains seen in November, rising 1.4% month over month to end the year nearly 5% higher than the December 2012 average.

At Continental Europe's most liquid natural gas trading hub, the Dutch TTF, the average price of day-ahead natural gas in December was EUR27.68/MWh, up only slightly from November and up 1% year over year.

"European natural gas prices were at their highest at the start of December, when there was a cold spell and reduced Norwegian production," said Alex Froley, Platts energy analyst. "They then trended steadily lower across the course of the month on the back of mild weather and the Christmas/New Year holiday period, which kept demand in check."

    Platts Continental Europe and U.K. Day-Ahead Monthly Averages

                                                                          Dec-13                    Nov-13       Dec-12

    CONTI (EUR/MWh)                                                                          46.80         47.00        43.00

    TTF (EUR/MWh)                                                                            27.68         27.22        27.32

    U.K. Power (BPS/MWh)                                                                     51.10         50.91        48.98

    U.K. Gas (pence/therm)                                                                   69.32         68.33        65.92

    Source: Platts

    NOTE: All figures are monthly averages of daily day-ahead contract prices as assessed by Platts.

*Platts Continental Power Index (CONTI) is a demand-weighted baseload average of day-ahead contracts assessed in Germany, Switzerland, France, Belgium and the Netherlands. The Platts U.K. assessments reflect day-ahead contracts assessed for firm delivery of power on the high voltage network of England, Wales and Scotland, and at the National Balancing Point for gas. The Platts assessments reflect prices as determined between buyer and seller in the open physical markets.

For more information on electric power or the methodology used by Platts in its power assessments, visit the Platts website www.platts.com.

About Platts: Founded in 1909, Platts is a leading global provider of energy, petrochemicals, metals and agriculture information and a premier source of benchmark prices for the physical and futures markets. Platts' news, pricing, analytics, commentary and conferences help customers make better-informed trading and business decisions and help the markets operate with greater transparency and efficiency. Customers in more than 150 countries benefit from Platts' coverage of the biofuels, carbon emissions, coal, electricity, oil, natural gas, metals, nuclear power, petrochemical, shipping and sugar markets. A division of McGraw Hill Financial (NYSE: MHFI), Platts is headquartered in New York with approximately 900 employees in more than 15 offices worldwide. Additional information is available at http://www.platts.com.

About McGraw Hill Financial: McGraw Hill Financial (NYSE: MHFI), a financial intelligence company, is a leader in credit ratings, benchmarks and analytics for the global capital and commodity markets. Iconic brands include: Standard & Poor's Ratings Services, S&P Capital IQ, S&P Dow Jones Indices, Platts, CRISIL, J.D. Power and McGraw Hill Construction. The Company has approximately 17,000 employees in 27 countries. Additional information is available at www.mhfi.com.

SOURCE Platts

SOURCE: Platts