HOWOGEHOWOGE low-energy building

EXPENSES

Rent before refurbishmenton average EUR 3.71 per sq.m
Rent after refurbishmenton average EUR 4.75 per sq.m
Refurbishment contributionion average EUR 0.77 per sq.m
Calculated reduction
of operating cost
EUR 0.53 per sq.m (without considering possible price increases)
The operating cost saving is composed of the following:
EUR 0.38 per sq.m heating; EUR 0.14 per sq.m ventilation;
EUR 0.02 per sq.m hot water, rest, miscellaneous
Operating cost with heating
before refurbishment
EUR 1.10 per sq.m (corresponds with EUR 66 per month for a flat of 60 sq.m)
Current operating cost with heatingEUR 0.65 per sq.m (corresponds with EUR 39 per month for a flat of 60 sq.m)
(advance payment heeding the increased primary energy cost and tenant record)
Primary energy requirement
before refurbishment
90.6 kWh/sq.m a
Primary energy requirement
after refurbishment
44.9 kWh/ sq.m a
CO2 emission per kWh
(according to Vattenfall)
0,162 kg/kWh
CO2 saving after
refurbishment (expert report)
20 kg/ sq.m a corresponds with 1.216 t/flat/p.a.
Refurbishment costEUR 8.0 million
including cost for energy-saving measures EUR 1.9 million
including cost for refurbishment at low-energy level EUR 422,000
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