Presentation Details
| Evaluation of NRCan’s New RETScreen Net Zero Portfolio Manager for Use in Arctic Environments Talin Patel1, Jinwook Chang2, Martha Lenio3, . 1Basis Independent Brooklyn, Brooklyn, NY, USA.2 Shanghai American School, Puxi Campus, Shanghai, China.3Mars Green Consulting, Iqaluit, NU, Canada |
Abstract
In Nunavut, building energy use accounts for over half of all territorial energy consumption, with over 99% of heating, electricity, and transportation energy supplied by diesel. Renewable energy and energy efficiency measures are essential for reducing diesel dependence. However, understanding where to target efforts is a challenge. This paper evaluates NRCan’s new RETScreen Net Zero Portfolio (NZP) tool against full RETScreen models built from architectural drawings for five residential building types across the Nunavut Housing Corporation’s building inventory to evaluate the tool’s effectiveness in identifying areas for improvement. It is found that while the NZP tool is rapid and accessible, its archetype-based baselines consistently overestimate heating fuel oil consumption relative to actual construction across all five building types, with overestimation growing from 54% to 382% as building size increases. Electricity consumption estimates are accurate across the five buildings.
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No part of this publication may be reproduced, distributed, or transmitted in any form or by any means, including photocopying, recording, or other electronic or mechanical methods, without the prior written permission of the author.
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