according to the ieanea projected cost study load factors in oecd countries vary between italy and united states for wind and between netherlands and france for solar photovoltaic pv assuming an entirely realistic average load factor for windpower turbines of this means that the share of wind on windy days is fourfold its average figure this means for instance that the danish system can only be balanced by being closely integrated with the nordpool electricity market with its ideal balancing conditions due to the almost exclusive reliance on hydropower by norway