User Manual

Restricted © Siemens AG 2013. All rights reserved.
November 2013 Page 1 Presenter / IC BT SSP ST
BT SG
BEMS: Building Energy Management System
Thermal
storage
E-car charging
BEMS
Data Flow
Energy Flow
E-Car
HVAC
Green Building
Monitor
Lighting
Solar
Wind power
DC inverter
Smart grid
CHP
Smart meter
Gateway
Electricity
storage
Fire safety
& security
Geothermal
energy
Water tank
Water pump
The need for a smart building in a smart grid approach is driven by specific
energy-related trends such as the increasing popularity of renewable energy,
greater necessity of grid stability, the increasing drive toward energy savings,
the growing demand for energy coupled with dwindling reserves of fossil
fuels, along with the expected rise in energy costs. This trend toward feeding
energy from decentralized sources into the grid necessitates better control
and use of energy by aligning consumption with generation.
The grid requires flexibility and efficiency in managing loads. This is achieved
by combining building management and grid management to optimize
elec trical loads. Smart buildings will play a central and fundamental role in
stabi lizing the grid through optimized (smart) consumption, the ability not
only to produce energy but also to store energy, and to do this through
energy
consumption forecasts that they share with utilities and grid operators.
Smart buildings are the answer
to the increasing complexity
of tomorrow’s energy systems