As companies strategize to find their strongest positions in a changing industry, they are announcing changes in the way they do business.

Some companies are dropping parts of their business to narrow their focus. Take Conergy, which earlier this month sold off itssolar-thermal business to Zen International and partners. The company, which had been a proponent of so-called "integration," or combining various businesses, expanded its solar-thermal interests last year. But it suffered from plunging shares when it lowered its outlook in October, lost its CEO Hans-Martin Rüter when he stepped down in November and then disappointed again in February when it posted a net loss for 2007.

Meanwhile, EnerWorks launched a new solar-thermal commercial and industrial division, TrendSetter Solar Products said it was increasing importation of its solar hot-water collectors into the United States and Carnegie Corp. announced it had acquired new solar-thermal technology from its chairman Alan Burns.

Many companies, like Carnegie, are turning to new technologies (click here to continue to the next section).