User Manual

75
AUTOMATIC CONTROL
7 TECHNICAL HOME AND BUILDING
MANAGEMENT
BT Reason for energy savings
7.5 Local energy production and renewable energy 3
Managing local renewable energy sources and
other local energy productions as CHP
0
Uncontrolled generation depending on the
fluctuating availability of RES and or run time of
CHP; overproduction will be fed into the grid
With that not all possibilities of local energy
production and of renewable energy sources are
utilized which leads to a corresponding energy
consumption from the grid.
1
Coordination of local RES and CHP with regard
to local energy demand profile including energy
storage management; Optimization of own
consumption
With that the renewable energy sources and the
local energy production will be extensively
utilized and time gaps between production and
utilization will be optimized regarding the energy
consumption.
7.6 Heat recovery and heat shifting 4
Using of waste heat recovery on the building
level and heat shifting
0
Instantaneous use of waste heat or heat shifting Waste heat utilization and heat shifting is only
done when is directly possible. With that a
certain utilization potential is not realized.
1
Managed use of waste heat or heat shifting
(including charging/discharging TES)
With this time gaps between utilization and
availability of waste heat will be taken into
account which increases and optimizes the
utilization of waste heat and heat shifting.
7.7 Smart grid integration
Interactions between building and any smart grid
including demand side management
0
No harmonization between grid and building
energy systems; building is operated
independently from the grid load
This represents today’s typical situation,
therefore the „standard“ classification.
1
Building energy systems are managed and
operated depending on grid load; demand side
management is used for load shifting
The coordination of the building’s energy
systems with the grid load (smart-grid) is often
driven by economical aspects, but can lead to
improved energy efficiency.
If the impact on energy efficiency is very small,
the function can be excluded accordingly to the
5%-rule (see FprCEN/TR 15232-2).