Ontwikkeling van het huishoudelijk energieverbruik in een geliberaliseerde energiemarkt -... ... the appli- cation of the commodity distribution system (cds) and the increase in taxes on energy and vat. compared to prices of natural gas in 2000, prices are expected to increase ... within the period up to 2010, the difference between reference technologies and more efficient energyconservationoptions will decrease. therefore, it is expected that the price elasticities based on historical data ... ecn.nl