• The installed global renewable electricity capacity nearly doubled between 2000 and
2011, although renewable energy is a relatively small portion of total energy supply both
globally and in the United States.
• Renewable electricity represented nearly 13% of total installed capacity and more than
12% of total electric generation in the United States in 2011. Installed renewable electricity
capacity is more than 146 gigawatts (GW).
• In 2011 in the United States, wind and solar photovoltaics (PV) were two of the fastest
growing electric generation technologies. In 2011, cumulative installed wind capacity
increased by nearly 17% and cumulative installed solar photovoltaic capacity grew more
than 86% from the previous year.