Energypedia is a renewable energy wiki in the context of development cooperation. On energypedia.info everyone can create and revise articles on technologies, approaches and projects related to renewable energy, energy access and energy efficiency. Energypedia promotes free knowledge and experience exchange to achieve universal access to sustainable energy for all people. Access to modern and clean energy sources is essential. One in five people lives without access to electricity. Every third person cooks on smoky fireplaces with negative consequences for personal health and the environment. Development is sorely needed, but most conventional development projects increase the demand for fossil fuels and exacerbate global climate change. An expansion of renewable energy is therefore essential not only in industrialized countries. But practical knowledge is often only in fragments. By bringing together energy experts from implementing organizations, universities, civil society, the public as well as the private sector, we will accelerate the distribution of sustainable energy solutions. Energypedia aims to remove knowledge and communication barriers so that theoretical knowledge can benefit from the lessons learnt from practitioners and vice versa. Following the old saying, we believe that knowledge sharing is power!