2008 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 2005 or 2006 is available, as well as forecasts through 2010. Available information includes global annual capacity additions and output, global cumulative capacity, and capacity factor. The Micropower Database Methodology is also included here. 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%.