High availability for the Sandreuth
biomass heat and power plant, thanks to
state-of-the-art Siemens solutions
Reference – Siemens Power & Process Automation (SPPA)
Instrumentation, Controls & Electrical
SPPA-E3000 Electrical Solutions
SPPA-T3000 Control System
are employed in the new biomass heat and
power plant in Sandreuth, with the aim of
attaining optimum availability.
The Result
■ High availability thanks to
reliable, cutting-edge
instrumentation, controls
and electrical engineering
supplied from a single
source
■ Operation of the biomass
heating power plant via
on-site workstations and
in parallel with the control
room of the existing power
plant
■ Significant savings in
auxiliary power
consumption achieved
by use of frequency
converters on drives
The Plant
Fall 2011 saw the commissioning of a new
biomass heating power plant at the power plant
facility in Nuremberg-Sandreuth, already the
site of a modern combined-cycle power plant.
This new plant, belonging to N-ERGIE Aktiengesellschaft, achieves a thermal output of
14 MW and an electrical output of 6 MW
through the combustion of natural residual
forest wood. This means that 10,000 households
can be supplied with electricity and 7,000
households with district heating. An overall
efficiency of more than 85 % is attained through
the use of combined heat and power.
The Task
For N-ERGIE, the construction of the biomass
heating power plant marked a further milestone
in its development into a green energy supplier.
The objectives of the project included the generation of 35 million kWh of green electricity per
annum and the integration of the plant into the
existing infrastructure of the power plant complex.
To meet these requirements, the new plant
needed a state-of-the-art instrumentation,
controls and electrical engineering solution.
Our Solution
Siemens supplied the complete electrical and
I&C package for the biomass plant in Sandreuth.
It was possible to realize the complete electrical
scope for the new-build power plant with the
portfolio of SPPA-E3000. The auxiliary supply
transformer employed ensures reliable distribution
for the plant’s own electrical requirements and
significant additional savings can be realized
through the use of frequency converters.
The installed generator transformer feeds the
generated energy into N-ERGIE‘s 20 kV distribution
grid. Security lighting facilities, a fire alarm system
and a video surveillance system were also
supplied. The scope of supply additionally
comprised medium- and low-voltage switchgear,
light and power distributors, emission measurement equipment and protection, excitation and
synchronization equipment – all optimally attuned
to the specific requirements and the existing
infrastructure at Sandreuth. Thanks to these
state-of-the-art components there is optimum
support for high levels of plant availability.
SPPA-T3000 was installed in the form of a unit
control system. Operating monitors for the
control system are located in the biomass plant
on the turbine, in the I&C room, in the weighing
control room for the truck scale and in the
control room of the existing Sandreuth power
plant. This enables control activities to be performed and data to be called up from the various
workstations, so that the plant‘s operation can
be continuously monitored and optimized.
“For us, being able to obtain
the complete electrical and I&C
package for our biomass heating
power plant from a single source
was exactly the right solution.”
Norbert Egner, Plant Manager for Electrical, Instrumentation
and Control Systems, N-ERGIE Kraftwerke GmbH
Answers for energy.
Published by and copyright © 2013:
Siemens AG, Energy Sector
Freyeslebenstrasse 1
91058 Erlangen, Germany
For more information contact
sppa-e3000.energy@siemens.com
www.siemens.com/energy/sppa-e3000
Siemens Energy, Inc.
Instrumentation, Controls, & Electrical
1345 Ridgeland Parkway, Suite 116
Alpharetta, GA 30004, USA
SPPA_FR_Sandreuth-E3-T3_e_V1-0
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