Plant-e produces electricity with living plants. The Plant-Microbial Fuel Cell is a unique innovative technology to produce bio-electricity. Plants keep growing while concurrently electricity can be harvested. First application of the technology will be the Green Electricity Roof; combining on-site electricity production with the advantages of a green roof. A first pilot-experiment has been constructed and is being analysed during the summer of 2012. Based on results of this pilot the prototype will be developed into a first commercial product. Plant-e, spin-off company of Wageningen University, will develop both the business plan and the product.