The solid supply with electrical power in Europe needs the development of smart grids. To solve the control problems of these grids, smart metering devices and energy information systems (SCADA) are needed on the carrier level. Considering private households and small enterprises, it is therefore required to replace plain old energy meters by modern smart metering components. Smart meters offer a lot of new features, for example handling of different dynamic tariffs and in addition to their carrier interface a data access capability for in-house applications. Using these capabilities an embedded in-house energy information system with a smart energy controller (SEC) will be proposed, which allows displaying real-time data information and analysis of power consumption as well as power generation. The concept is also useful to combine smart home applications with smart grid functions, if data exchange with a multi utility controller (MUC) with SML, and smart meter devices, e.g. eHZ is used. In that case, in connection with actors, demand side management functions may be executed by the controller. This was one of the intentions of the e-energy projects EENEAS, e-energy@home and E-DeMa.