germany-berlin: sanitary ware./ procurement and construction of public self-sufficient toilet facilities in the berlin green area./ it is to be investigated how green spaces in berlin can be provided with ecological and climate-friendly toilets. as part of a practical test, the extent to which both commercially available, self-sufficient toilet systems and new ones can be used in the green areas is to be tested and evaluated technological developments can be combined with the requirements of a climate-neutral, ecological, gender-fair and barrier-free city at locations that are not connected to electricity, water and waste water media. the subject of this tender is the procurement and construction of up to 24 new toilet facilities in the 12 districts of berlin. the aim is to procure at least 4 toilet facilities from 4 different manufacturers.