出版社：Energiewirtschaftliches Institut an der Universität zu Köln
摘要：Renewable energy (RES-E) support schemes have to meet two requirements in order to lead to a costecient renewable energy mix. First, RES-E support schemes need to expose RES-E producers to the pricesignal of the wholesale market, which incentivizes investors to account not only for the marginal costs perkWh (MC) but also for the marginal value per kWh (MV el) of renewable energy technologies. Second,RES-E support schemes need to be technology- and region-neutral in their design (rather than technologyandregion-speci c). That is, the nancial support may not be bound to a speci c technology or a speci cregion. In Germany, however, wind and solar power generation is currently incentivized via technology- andregion-speci c feed-in tari s (FIT), which are coupled with capacity support limits. As such, the currentRES-E support scheme in Germany fails to expose wind and solar power producers to the price signal ofthe wholesale market. Moreover, it is technology- and region-speci c in its design, i.e., the support level foreach kWh di ers between wind and solar power technologies and the location of their deployment (at leastfor onshore wind power). As a consequence, excess costs occur which are burdened by society. This paperillustrates the economic consequences associated with Germany's technology- and region-speci c renewableenergy support by applying a linear electricity system optimization model. Overall, excess costs are found toamount to more than 6.6 Bn e2010. These are driven by comparatively high net marginal costs of o shorewind and solar power in comparison to onshore wind power in Germany up to 2020
关键词：Technology;region-speci renewable energy support; marginal costs; marginal value
