As indicated in market trends of Inter Solar fair in Munchen next May, the photovoltaics industry is increasingly looking to new business models based on self-consumption, power purchase agreements (PPAs), shared installations, virtual power plants – and particularly on tenant solar power. Energy storage system manufacturers are breaking new ground with community models, offering operators grid-supplied electricity at cheap prices, or up to a certain amount, even free of charge. Innovative financing mechanisms and business models for a wide range of applications can help to reduce risks and avoid high initial costs: from detached houses to social housing, from commercial buildings with many tenants to free-standing PV installations. While one million private homes in Germany already have a PV system installed, the potential for solar on rented building remains largely underexploited. According to predictions made by the German Solar Association (BSW-Solar), around four billion kilowatt hours of solar power could be generated annually on rented buildings across Germany, and often consumed directly on site.