Talison Lithium Ltd.

Despite terrific share price appreciation over Q1 2011 for many clean energy companies, as demonstrated in our Saturday list of the TOP 20 performing companies in the EnergyBoom Clean 100 Index, not all companies in the sector ended the quarter with happy shareholders.

Here are the 10 worst-performing companies on the EnergyBoom Clean 100 Index January 3 through March 31:

Yesterday’s market selloff took a broad swipe across all sectors, with the solar stocks being the hardest hit among green sectors. The E•B Solar subindex lost 6.61 percent yesterday, compared the overall E•B Solar Clean 100 (down 2.98 percent), the S&P 500 Index (down 1.62 percent), the Dow Jones Industrial Average (down 1.59 percent) and the NASDAQ composite (down 1.95 percent). European exchanges were down slightly more than U.S. markets.

Shares of the world’s leading lithium producing companies are going gangbusters. Although lithium is used in a wide range of products, one likely explanation is that investors want exposure to the mineral that is critical to the batteries in the first mass-market electric vehicle’s (EVs).