2014 (July) Edition: The purpose of the micropower database is to present a clear, rigorous, and independent assessment of the global capacity and electrical output of micropower (all renewables, except large hydro and cogeneration), showing its development over time and documenting all data and assumptions. With minor exceptions, this information is based on bottom-up, transaction-by-transaction equipment counts reported by the relevant suppliers and operators, cross-checked against assessments by reputable governmental and intergovernmental technical agencies. For most technologies, historic data runs from 1990 through 2013. Available information includes installed capacity (GW) and electricity generation (TWh/y) per generating technology. The Micropower Database Methodology is also included in this ZIP-file. For previous versions, please see the 2008 Micropower Database (RMI ID E05-04) and the 2010 (May) Edition (RMI ID 2010-06).