Both PACs granted to HZI

Hitachi Zosen Inova (HZI) delivered the chute to stack part for Renergia
Zentralschweiz AG’s new Energy from Waste (EfW) and has achieved the Preliminary
Acceptance Certificate (PAC) for both the boiler and the flue gas treatment lots. This
marks the successful completion of the project’s commissioning phase, and the
EfW’s entry into full commercial operation.

High energy efficiency with best technology
Renergia, a modern and environmentally friendly EfW plant was built in Perlen, close to
Luzern. The construction comprised 13 main lots and Hitachi Zosen Inova was responsible
for the two chute to stack lots. The facilities supplied by HZI consisted of first class
technology ensuring Renergia Zentralschweiz AG – a consortium of waste management
associations from six cantons and the paper manufacturer Perlen Papier AG – met its targets
for energy efficiency.

Less fossil fuel, less CO2
The contract for the two lots was agreed in April 2012 and construction began in August
2012 with the first waste feed in January 2015. This means a period of around three years
from contract signature to commercial operation. The facility is set to produce 155’000 MWh
of electricity per annum, will cover the energy requirements of nearly 38’000 households and
supply 320’000 MWh of steam to the adjacent Perlen Papier AG. The supply to Perlen
Papier AG will save more than 40 million liters of oil and thus contribute to the reduction in
CO2 emissions, and significant cost saving for Perlen Papier AG.

Efficient combustion and low emissions
Hitachi Zosen Inova’s lots included the provision of an innovative water-cooled grate and the
new integrated combustion concept which allows both highly efficient combustion and
maximum energy recovery. In addition, the five stage flue gas treatment with electrostatic
precipitator, dry FGT, catalytic DeNOx, semidry FGT and dosing of coke allows efficient
depollution of the flue gases to lowest emission values.

Ruedi Kummer, CEO of Renergia Zentralschweiz AG, said: “With the start of commercial
operation at the Renergia plant we have achieved one of the most important milestones in
the construction phase of the new plant- and this was also thanks to the big contribution of
Hitachi Zosen Inova.”

HZI CEO Franz-Josef Mengede said: “We are proud to have delivered innovative
technologies with two main lots to Renergia, setting new milestones in EfW plants. It is a
great pleasure for us having contributed to the latest facility constructed in Switzerland close
to our main offices”.

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