We define utility-scale solar as projects with a rated output capacity of 4 MWac and above, as noted here.
How we reached this definition
The rationale for adopting this threshold is described in the paper on the left.
Wiki-solar originally adopted a threshold of 10 MWp.
Legislation changes in some markets created a case for redefining the threshold, so we published this paper and sought the views of experts within the industry in a consultation during the second half of 2013.
The impact of change was assessed in this release.
As a result, we revised the threshold at the end of 2013, as described in this paper.
This threshold applies (unless stated otherwise) in all our publications from 2014 onwards.