Analys av det nordiska kraftnätets påverkan på det svenska elspotpriset.
During the last few years, there has been a lot of debate regarding the price ofelectricity on the Swedish market. According to a recent survey from Sifo, anon-bias governmental institute for consumer research and testing, the priceof electricity is what worries Swedish households the most. An investigationof the eciency of the Nordic power grids inuence on the Swedish spotprice is therefore both relevant and valuable. Three quarters of all electricityproduced in the Nordic region is traded at the Nord Pool Spot power market.This survey examines how much of the variation of the swedish spot pricecan be descried by the variation of the nordic system price and how much iscaused because of ineciencies in the power grid. Primarily, linear regressionwith adjustments for endogeneity and heteroskedasticity has been used in orderto analyze data obtained mainly from Nord Pool Spot and Vattenfall AB.The results show that the variation of the system price can account for all butabout 40% of the variation in the Swedish spot price. Thus, it is reasonable tobelieve that these 40% are caused by limitations and local imbalance betweenproduction and consumption in the Nordic price areas. Our conclusion fromthe results is that it is in place with improvements of the Nordic power grid.The alternative would be to reallocate the power production to match theconsumption. However, the latter is neither economically nor environmentallysustainable.