MINI CHP PLANT
CASE STUDY
April 2016
Mini CHP units at a sports centre
Nærum, Denmark
Short description of
the installation
•••
The site
The site is a public sports
center with facilities for
swimming, gym, conference
rooms, and athletics stadi-
um.
The installation
Consists of three mini CHP
units, one brine/water heat
pump and two condensing
The system has a payback time of less than
5 years and reduces the CO
2
emission by approx.
133-200 tonnes per year
gas boilers. The mini CHP
units and heat pump are
combined with heat storage.
The heat pump recovers
heat from the ventilation
outlet and renewable heat
from ground collectors.
Mini CHP units in combination with a heat pump
reduce energy cost and greenhouse gas emission.
With the installation of three
mini CHP units and a heat
pump, the Rundforbi Sports
Centre has successfully re-
duced cost of electricity and
heating while lowering the
greenhouse gas emission by
approx. 133-200 tonnes per
year. The advantage of the
CHPs is mor efficient fuel
use compared to separate
heat and power production.
The implementation of a
heat pump also includes re-
newable energy in the heat-
ing system and has made it
possible to recover waste
heat from the ventilation
system. The payback time for
the complete installation is
less than 5 years.
Operation strategy
The CHP units should pro-
duce as much electricity as
possible, without exceeding
the facilities' simultaneous
own consumption of elec-
tricity. Peak-load boilers are
used if more heat is needed.