ENERGIESPAREN (ENERGIETECHNIK); PERVASIVE COMPUTING + UBIQUITOUS COMPUTING (COMPUTER SYSTEMS); SCENARIOS + MODELS OF THE FUTURE; ENERGY CONSERVATION (ENERGY TECHNOLOGY); SZENARIEN + ZUKUNFTSMODELLE; ELECTRICAL ENERGY MEASUREMENT + ENERGY CONSUMPTION MEASUREMENT (ELECTRICAL MEASUREMENT TECHNIQUE); PERVASIVE COMPUTING + UBIQUITOUS COMPUTING (COMPUTERSYSTEME); ARBEITSMESSUNG + ENERGIEVERBRAUCHSMESSUNG (ELEKTRISCHE MESSTECHNIK)