Author Archives: Andrew Berkeley

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Handle the way units are represented in Quantity

Posted on January 20, 2012 by Andrew Berkeley

One feature we have found pretty useful in the Quantify ruby gem is the flexibility with which units can be represented. Sometimes we want to work with unit names (e.g. kilogram, mile), while at other times symbols are more appropriate … Continue reading →

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Handling quantities in Ruby with the Quantify gem

Posted on December 16, 2011 by Andrew Berkeley

For the last few months at AMEE, we have been using a Ruby gem called Quantify to provide support for physical quantities in our Ruby-based tools and Rails applications. Quantify was originally developed by myself as a project for exploring … Continue reading →

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Are some emissions methodologies ‘better’ than others? – Part 4

Posted on December 7, 2010 by Andrew Berkeley

In this series, we’ve discussed mass-balance analysis and emissions factors as means of calculation carbon emissions. So…which approach is better? The short (and easy) answer to this is that it depends. In a direct, like-for-like comparison, mass-balance methodologies are usually … Continue reading →

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NERC subregions for US grid electricity now available in AMEE

Posted on December 3, 2010 by Andrew Berkeley

AMEE has upgraded its coverage of grid electricity in the United States by adding data representing the subregions of the North American Electric Reliability Corporation (NERC). These subregions divide the US grid into 8 geographic entities, each with their own … Continue reading →

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Improvements to organisation of transport methodologies

Posted on December 1, 2010 by Andrew Berkeley

The AMEE platform offers a wide range of data and calculation methodologies for greenhouse gas emissions relating to transport. These have recently been reorganised, improving their discovery and usability. Previously, AMEE categorised transport-associated data primarily on the basis of vehicle … Continue reading →

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AMEE adds rich new functionality for time-series data

Posted on November 29, 2010 by Andrew Berkeley

AMEE, the web-based engine for greenhouse gas emissions data, now supports time-series data. This new development allows users of AMEE to access historical data and to calculate emissions according to specific historical time-frames using the most accurate and appropriate sequences … Continue reading →

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