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Germans believe improving storage options for renewable energy and extending the power grid offer most potential to further the energy transition, a survey conducted by utility association BDEW. Fifty-one percent of respondents said a lack of storage for renewable energy is the energy transition's largest technical hurdle, while 45 percent pointed to grid extensions. Thirty-three percent said renewable energies are not technically mature, and 27 percent said there wasn't enough space for the rollout of renewables.

The lobby group said the survey showed that citizens had a good grasp on the energy transition's trouble spots. It added there was a need for a variety of storage solutions, ranging from household solar batteries to huge cavern facilities, and from short-term units that can stabilise the electricity grid to long-term units to balance out seasonal differences in supply and demand. The association lamented that current laws prevented storage investments, because it made stored electricity too expensive.