this is tim maya you against the c o o of one of germany's for grid operators. in germany, more than 40 percent of the tricity comes from renewable sources. it's supposed to reach 80 percent by 2030. so what challenges does a high shelf wind and sold off for a while? well, for one they make you depend on the width. is the thing to exactly for cost? well, we can expect the next phase. we unfortunately gotten a lot better at this, but even the best tool cost come st as to whether the german was doing cuz it's allowed to dock doldrums describes times when there is little some and little wins . it's read upper right has nightmare. germany produces most of its wind energy and the north, most of its solar energy in the south is currently no way to getting large amounts of wind energy down south where there's a lot of demand from industry or much solar energy up north for that matter. it's a similar story in the us. most wind energy is generated in the middle of the country, but more than 2 thirds of the population lives here within 100 miles of the boat. so that's whe