Highlights from the Zero Net Energy Series

Our four-part series on ZNE strategies, presented with Allen Construction and the Central Coast Green Building Council, opened last month to a sold out crowd.

For those unable to attend, here’s a glimpse at some of the highlights:

ZNE Compliance – Jennifer Rennick:

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A common definition for ZNE is that a building produces as much energy as it consumes.  While that is the case for “operational ZNE”, California’s Title 24 code will require projects to comply via one of two methods.  The performance method will be based on the Energy Design Rating (EDR), while a prescriptive method will use conditioned floor area (CFA) and a Dwelling Adjustment Factor to determine compliance.

What a difference sealing an attic can make – Scott Nyborg:

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Using measured data from a renovation project in Los Angeles, the effects of air sealing and insulation on attic temperature were shown to be dramatic.  While indoor temperature initially fluctuated in sync with outdoor air temperature (OAT), as measures were put in place the variability was reduced from 20 degrees to 5 degrees in a 24-hour period.

For more information, see the Central Coast Green Building Council's website.