Page 25 - ZEB AnnualReport 2015

up to 181,497 kWh (35.04 kWh/m ), while The roof mounted PV system produced Collaboration have achieved their proitability
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the predicted irst year use was 174,859 kWh 223,119 kWh the irst year of full operation, requirements.
(33.76 kWh/m ). while the predicted irst year production was
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227,782 kWh. Even though Powerhouse Kjørbo is only at the
In addition, the buildings are equipped with a start of its expected 60 year lifetime, operation
data centre. Total energy use for the computer Powerhouse Kjørbo is the irst building in is on track, and all objectives in the project
servers in the centre during the irst year of Norway to achieve BREEAM outstanding, seem to be within reach. This implies that
operation was 40,836 kWh (7.88 kWh/m ). and user surveys based on the irst year of Powerhouse Kjørbo probably is the the irst
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Thus, the total measured irst year energy operation show that more than 87.5 % of proitable, energy-positive building ever built
use was 222.333 kWh (42.93 kWh/m ). the users were satisied with the thermal in Norway.
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This implies a reduction of approximately environment, while more than 95 % were
82.5 % compared to the yearly use before satisied with the perceived indoor air quality .
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refurbishment, typically measured to around In addition, all parties in the Powerhouse
1,270,000 kWh (245.00 kWh/m ).
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Spiral staircase - Powerhouse Kjørbo. Photo: Anne Gunnarshaug Lien

ZEB annual report 2015 25