The MAC Solar Index tracks a set of solar manufacturing and installation companies. It is also the basis for the Guggenheim Investments “TAN” Exchange-Traded Fund (“ETF”, *). They recently published a progress report on global solar installations, which I wanted to share:

(Click on image to see a larger version.)

There is also a graphic which shows solar installation in the Commonwealth of Massachusetts which is impressive, even if the dots are misleadingly large:

(Click on image to see a larger version.)

These data are courtesy of the Commonwealth of Massachusetts itself.

* In full-disclosure, Claire & I are invested in the TAN ETF. Also I am no kind of investment advisor and, as the MAC Solar Index blog will tell you, the index and TAN have trended significantly lower, under pressure by cheap oil and uncertainty over the Chinese economy.