Changes

The quality or condition of a [[photovoltaic]] system being available to provide power to a load. Usually measured in hours per year. One minus availability equals downtime.<ref>http://www1.eere.energy.gov/solar/solar_glossary.html</ref>

'''Availability''' is the quality or condition of a [[photovoltaic]] system being available to provide power to a load. Usually measured in hours per year. One minus availability equals downtime.<ref>http://www1.eere.energy.gov/solar/solar_glossary.html</ref>

== References ==

== References ==

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