the share of wind and solar in total electricity supply in oecd europe in was thus compared to in oecd north america and only in oecd pacific in individual european countries the shares are such that they can indeed make a difference to the working of the electricity system wind and solar thus contributed to the electricity supply in denmark in both portugal and spain and in germany during first precisely due to intermittency the total shares of wind and solar power in total electricity supply vastly underestimate their contribution when the wind is actually blowing and the sun is shining