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January 2020 - IRIS v5.1 Released
No change.
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May 2019 - IRIS v5.0 Released
No change.
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March 2016 - IRIS v4.0 Released (current version)
Immaterial change. Energy Generated for Use: Total (OI9624) replaced Energy Produced On-site: Total (OI9624). Metric name and definition modified to improve accuracy.
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March 2014 - IRIS v3.0 Released
Immaterial change. Minor revision to metric name and definition language for clarity.
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November 2011 - IRIS v2.2 Released
No change.
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February 2011 - IRIS v2.1 Released
No change.
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September 2010 - IRIS v2.0 Released
Material change. Energy Purchased (OI8825) and Energy Produced On-site (OI9624) replaced Energy Consumption (OEN35). Metric bifurcated to increase specificity by differentiating between energy purchased and energy produced on-site.
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September 2009 - IRIS v1.0 Released
New metric. Energy Consumption (OEM35) developed via Original IRIS Working Group.
Alignment comments: To calculate overall Energy Consumption, organizations should use both Energy Generated for Use: Total (OI9624) and Energy Purchased: Total (OI8825).
JII definition: Energy consumption measured in kilowatt-hours or megajoules of energy consumed during the reporting period. Distinguishing heat and electricity consumption is recommended. This indicator may be used to measure performance (e.g. kWh/m2 for a green building) or could be an absolute measure (e.g. before and after comparison).
JII unit of measurement: kWh or MJ (energy)