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HEAT - HOME ENERGY ASSESSMENT TECHNOLOGIES: A WEB2.0 RESIDENTIAL WASTE HEAT ANALYSIS USING GEOBIA AND AIRBORNE THERMAL IMAGERY G. J. Hay *, B. Hemachandran, G. Chen , C. D. Kyle Foothills Facility for Remote Sensing and GIScience, Department of Geography, University of Calgary Calgary, T2N 1N4 Canada - (gjhay)@ucalgary.ca Commission VI, WG IV/4 KEY WORDS: GEOBIA, Thermal Imaging, TABI 320, Urban, GHG, wasteheat ABSTRACT: We report on the HEAT (Home Energy Assessment Technologies) pilot project conducted over the City of Calgary, Alberta, Canada, and discuss plans for the 2010 full city implementation. HEAT represents a Free and Open Source (FOSS) Geomatics solution for residential waste heat monitor with high-resolution airborne thermal imagery that is intended to (i) support Canadian urban energy efficiency programs; (ii) evaluate and monitor residential thermal envelopes (i.e., waste heat) using a new Canadian thermal airborne sensor; and (iii) provide free online results and tools to help individuals conserve energy, save their money and reduce their Green House Gas (GHG) footprint. A demo version of this service can be accessed at http://www.wasteheat.ca - login: beta, pwd: beta. We welcome your constructive feedback. 1. INTRODUCTION Since 1990, Canada has implemented numerous programs to encourage energy efficiency. For example, in Calgary Alberta, $50 million was spent between 2003-08 on energy performance programs to assess and upgrade city-owned facilities, with an estimated $7 million saved in energy costs per year, and a reduction of 80 KT of CO2 emissions (DEEAEP, 2010) The key to these savings was that appropriate information provided action to enhance energy efficiency and reduce environmental impact (Darby, 2006). But how does a local home owner concerned with reducing her environmental footprint (in terms of energy use/emissions) know that her home – not the energy saving devices used inside it – is energy efficient? Here we report on the goals, methods and results of the HEAT project (Kyle, 2009): namely to develop a Geomatics turn-key solution (software, hardware, data provision and web- portal/service) that will provide residents free of charge a way to automatically assess their homes’ thermal waste energy footprint (i.e., a detailed heat map of their house showing hot and cold areas) to identify where potential energy saving renovations could be made (i.e., windows, roof, etc) without the need for costly and potentially unnecessary in-situ thermal surveying taking place; and all as easily as clicking on their house in Google Maps. With this knowledge, home owners can participate in government grant/tax incentive programs to carry out the energy saving renovations on identified areas, from certified service providers (Hay and Kyle, 2010). 2. STUDY AREA & DATA COLLECTION 2.1 Study area The study area is located in the community of Brentwood, situated in the northwest quadrant of Calgary, Alberta Canada. This site represents 450 residential buildings, the majority of which were built between 1961 and 1965 - suggesting that they are good candidates for potential energy saving renovations. 2.2 Thermal data A 600 x 2000 pixel TABI-320 (Thermal Airborne Broadband Imager) geometrically corrected mosaic of the study area was provided by ITRES Research Limited. The TABI-320 is a pushbroom thermal infrared sensor that produces an image 320 pixels wide. The sensor is sensitive to the 8μm - 12μm range of the electromagnetic spectrum, and contains flight information that is later used to geo- and ortho-correction the imagery. The image was delivered in ENVI format with a spatial resolution of 1.0 m and a radiometric resolution of 0.1C. A new larger area dataset will be acquired by the TABI-1800 during the winter of 2010. This new sensor is capable of collecting 1800 pixels per swath, effectively 5+ times the current capabilities of the TABI- 320 (TABI, 2010). 3. METHODS AND RESULTS 3.1 HEAT Innovations A number of specific results and innovations unique to this project include the following: (1) the development of a new commercial waste-heat monitoring market for the TABI-1800. (2) The development of automated/semi-automated Geographic Object Based Image Analysis solutions (i.e., GEOBIA * Corresponding author.PDF Image | RESIDENTIAL WASTE HEAT ANALYSIS USING GEOBIA
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