State of Photovoltaics: 2007

Global production of photovoltaic (PV) or solar cells-which convert the sun's light directly to electricity-increased 51 percent in 2007, to 3,733 megawatts.1 (See Figure 1.) According to early estimates, more than 2,935 megawatts of solar modules were installed that year, bringing cumulative global installations of PVs since 1996 to more than 9,740 megawatts-enough to meet the annual electricity demand of more than 3 million homes in Europe. Over the past five years, annual global production of PV cells has increased nearly sevenfold, and cumulative installations have grown more than fivefold.

More interesting statistics in the article.

via Worldwatch