Development is not possible without energy. In order to reduce poverty, sustainable energy supplies are being established and expanded in developing countries. With mobile and stationary payment systems, savings opportunities and loans, the project partners can enable local energy supply at household or farm level and thus contribute to the electrification of rural areas, which is important for development, and to the promotion of environmentally friendly local systems. In some countries, German Sparkassenstiftung's projects equip financial sector institutions with solar energy systems, thus helping to ensure not only their own energy supply. In this way, members or customers are also motivated to use climate-friendly energy systems.