Rapport (alle typer) - Danish Gas Technology Centre

DGC-report 10Table 2Average market price of electricity (DKK/MWh) as well as differencebetween simple and power weighted average price for Westand East DenmarkWest DenmarkEast DenmarkYear Simple Weighted Difference Simple Weighted Differenceaverage averageaverage average2007 241,39 282,56 41,17 245,93 273,94 28,012008 420,70 435,55 14,84 422,28 429,55 7,272009 268,43 289,02 20,59 296,90 319,69 22,792007-2009310,29 336,98 26,69 321,81 341,27 19,46The numbers in Table 2 were calculated from total decentralized electricityproduction in Denmark. This means that the data covers both productionfrom natural-gas fired engines and turbines, where the production dependson market price of electricity and production from for instance householdwaste, which takes place independently of market price.It was found that around half of the decentralized electricity production soldon Nordpool takes place independently of the electricity price. This willinfluence the calculated additional value of price sensitive electricity productioncompared to constant production. If these 50 % of base load areomitted from the analysis, the additional value of price-flexible power productionwould be 40-50 DKK/MWh instead of 20-25 DKK/MWh as shownin Table 2.4.1.1 Value of storing biogas productionIt is not practically possible to store biogas production for longer periods. Itis, however, possible to store it for some hours. This means that it will bepossible to avoid electricity production during night time when the electricityprices typically are lowest. A gas storage with a capacity of six hours ofproduction means that it would be possible to avoid production from midnightto six in the morning. That could increase the average value of theelectricity production by 25-30 DKK/MWh. A gas storage with a capacityof 12 hours of biogas production would avoid electricity production from 8pm to 8 am. That would increase the average value of the electricity productionby 40-50 DKK/MWh.