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Buildings 2015, 5(1), 116-129; doi:10.3390/buildings5010116

Comparison of NZ’s Energy Efficiency Regulation and Verification Assumptions to Real Building Loads and Operation

1
Centre for Building Performance Research, Victoria University of Wellington, P.O. Box 600, Wellington 6140, New Zealand
2
Building Research Association of New Zealand (BRANZ) Ltd, Private Bag 50908, Porirua 5240, New Zealand
*
Author to whom correspondence should be addressed.
Academic Editor: George Baird
Received: 25 November 2014 / Revised: 22 December 2014 / Accepted: 15 January 2015 / Published: 27 January 2015
View Full-Text   |   Download PDF [400 KB, uploaded 27 January 2015]   |  

Abstract

The New Zealand building design industry assumes various building model inputs for the consumption of energy through lighting and appliances. It also makes assumptions regarding when these energy consumers are considered to be “turned on”. This paper aims to better inform industry energy modellers about the real load and operation of real commercial buildings in New Zealand when compared to New Zealand Standard energy efficiency requirements and assumptions. The paper presents a set of New Zealand relevant commercial building operation information. Typical operation information is provided for three commercial building types: (1) Office; (2) Retail; and (3) Mixed/Other. The information provides low, typical, and high installed building load and operation pattern scenarios for the three building types. The typical data presented in this paper is significantly different to the load requirement and operation modelling assumptions presented in the New Zealand Building code. The results established in this paper are informed by data gathered in the Building Research Association of New Zealand (BRANZ) Building Energy End-Use Study (BEES). The purpose of BEES is to increase knowledge on energy use patterns for the entire New Zealand building stock. The intention of this paper is to disseminate the established knowledge that will eventually update the assumptions used in New Zealand commercial energy models. View Full-Text
Keywords: building energy modelling; building load; operation patterns; Building Energy End-Use Study (BEES); monitored data building energy modelling; building load; operation patterns; Building Energy End-Use Study (BEES); monitored data
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MDPI and ACS Style

Cory, S.; Donn, M.; Pollard, A. Comparison of NZ’s Energy Efficiency Regulation and Verification Assumptions to Real Building Loads and Operation. Buildings 2015, 5, 116-129.

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