biomass as an energy source

BIOMASS AS AN ENERGY SOURCE
Solid Biomass District Heating Plant
in Kepice
Project background
Kepice is a small town located in west part
of Pomeranian Region in Slupsk County.
The population of Kepice is 4,2 thousand.
Kepice is located at the Polanowska Upland
by the Wieprza River. The nearest
communes
are
Slawno,
Kobylnica,
Trzebielino, Miastko and Polanow.
Kempice’s boiler house was built in 1981
and was equipped with seven coal boilers of
total installed capacity 3,71 MW. A yearly
consumption of coal was about 1400 tonnes.
Heat was supplied to the district heating
system (245 000 m2 of heated area) and
domestic hot water. In 1997 technical
design and cost analysis were prepared for
modernisation of the Kepice boiler house
within actions of „THERMIE – JOULE”
program.
network, and delivery of accompanying
equipment. The investment was completed
in 2000.
Technical details
Capacity installed
Efficiency of boilers
Process parameters
Energy produced
Fuel
Fuel consumption
Calorific value of the
fuel
Investment costs
4 MW
(1 x 2,5 MW and 1 x 1,5 MW)
83 %
O
Water temp. 90 C,
pressure 0,3 MPa
33 000 GJ/year included,
4 900 GJ/year for hot water
Wood chips and sawdust
6 000 m3 per year
3
Do 6,5 GJ/ m
2 585 433,99 PLN
Implementation
In 1999 the main investor, municipality of
Kepice Town, initiated a process of
applying for financial support. Heise &
Gostkowski Ltd. Was selected for
implementation of the project.
The actions of the investment included
preparation of technical documentation,
installation of 4 MW sawdust/wood boilers,
building of a water purification plant and
construction of a hot water system,
construction works, instalment of electric
circuits and automatics systems, building of
a fuel storehouse and fuel feeding system,
replacing 2,5 km of the heat distribution
Photo: A part of fuel conveyer
European Commission (Directorate-General for Energy and Transport)
Contract no. NNE5/2002/52: OPET CHP/DHC Cluster
Environmental impact
Fuel
Sawdust enriched with wood chips (only
during winter season due to higher heat
demand) is a main fuel utilised in Kepice
boiler house. A private company selected in
a tender supplies fuel to the plant . The
company collects the sawdust from the
neighbouring
sawmills
and
wood
companies. Fuel is delivered continuously
to the boiler house depending on a current
demand.
The storehouse by the boiler house can hold
one-day reserve of fuel that is about 85 m3 .
-
Higher efficiency of heat generation,
Reduction of emissions (SO2 – 100%,
CO2 –100%, dusts – 99%, NOX –
16,8%),
Utilisation of wood waste,
Easier service of the boiler house,
Funds spent on fuel remain within the
Kepice County and support its
development.
Economical data
Total cost of the investment was 2 585 433 PLN
(601 264 €). The following institutions financed
the project:
EKOFUNDUSZ, Warsaw – 47,74 %,
Loans – 41,66 %,
Own funds – 8,67 %,
Subsidy from the state budget – 1,93 %.
An average net cost of 1GJ heat supplied to
customers is 30,6 PLN/GJ (7,1 €). Cost of fuel
supplied to the heating plant is 82 PLN/m3 (19
€) in case of wood chips, and 36 PLN/m3 (8,4 €)
for the sawdust.
Photo: Fuel storage by the boiler house
End users
The boiler house in Kepice covers 75% of the
town demand for heat and domestic hot water.
Heat is supplied mainly to residential buildings.
Plant operator
Heat Energy Enterprise
77 – 230 Kepice
ul. Bielaka 8
Tel.:+48 59 857 64 09
Photo: Part of the fuel feeding system
________________________________________________________________________
EC BALTIC RENEWABLE ENERGY CENTRE
European Commission (Directorate-General for Energy and Transport)
Contract no. NNE5/2002/52: OPET CHP/DHC Cluster
INSTITUTE FOR BUILDING, MECHANIZATION AND ELECTRIFICATION OF AGRICULTURE
ul. Rakowiecka 32, 02 - 532 Warszawa
Tel./Fax.: +48 22 848 48 32
E-Mail: [email protected]
ul. Reduta Żbik 5, 80 - 761 Gdańsk
Tel./Fax.: +48 58 301 57 88
E-Mail: [email protected]
European Commission (Directorate-General for Energy and Transport)
Contract no. NNE5/2002/52: OPET CHP/DHC Cluster