2010 (September) 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 from 1990 through 2008 or 2009 is available, as well as forecasts through 2013. Available information includes global annual capacity additions and output, global cumulative capacity, and capacity factor. The Micropower Database Methodology is also included here. The 2008 Micropower Database (RMI ID E05-04) and the 2010 (May) Edition (RMI ID 2010-06) are also available.Note: A more recent version of 2014 Micropower Database (September) (RMI ID 2010-14) is now available. This update to the database incorporates recently released data that change the total installed micropower capacity by 2.9%.