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4.5.4 Investment Costs
The investment costs used in the economic calculations come from various sources. The
investment cost for low energy lighting is based on an offer from Göteborg Energi. The cost
for insulating the door hoods is based on insulation prices from Profisol Teknisk Isolering.
The investment cost for moving the intake to the compressor is an approximate estimation of
the cost for insulated pipes and a small installation cost. The cost for investing in heat
exchange between the furnace exhaust gases and washing water is given by the consulting
company Jerrex, which has been involved in similar installations. The investment cost for
removing the district heating demand is based on an offer from Atlas Copco. The investment
includes heat exchanging the waste heat from the compressor and the heating of the offices
and installing new piping for heat exchange in three ventilation aggregates.
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