The Berlin Energy and Climate Protection Program 2030 gives solar energy a central role, as it is the most important renewable energy source that can be developed locally. The state government wants to cover 25 percent of Berlin's electricity supply from solar energy as quickly as possible. In the densely populated city, this also requires the roofs of apartment buildings to be used. In the discussion format Wandelwecker on 8 September 2021, Fabian Zuber from the Reiner Lemoine Foundation and Ecologic Institute's Katharina Umpfenbach discussed options transforming the regulation of tenant electricity and local solar power supply. The event was moderated by Valentin Tappeser from IÖW. It became clear that solar expansion can only be achieved at the required speed with a fundamentally new regulatory approach centered around joint self-supply that intelligently links on-site power generation via solar systems with charging of electric vehicles and heat generation.

In EU policy, the textile value chain is currently in the focus of efforts to build a circular economy. Textile recycling in the EU is still in its infancy, although promising innovative technologies are about to enter the market. How can policy support the industrial uptake of textile recycling? This was topic of a webinar held on 31 August 2021. Members of Ecologic Institute's Circular Economy Team presented policy recommendations to the European Commission to enhance systems for the collection, sorting and recycling of textile waste - and to create a market for recycled textiles.

How circular economy approaches in the construction sector can be strengthened is discussed in this episode of Wandelwecker together with two proven experts in circular construction.