Exelon Inc, Wisconsin Energy Corp., Goldman Sachs and First Solar Inc were among the stocks with links to the clean energy industry which appealed to investors on Wednesday.

Those were among seven companies recommended today by investment professionals Vince Farrel, CIO of Soleil Securities and Kevin Landis, CIO and portfolio manager of Firsthand Capital Management on business cable network CNBC.

They noted Exelon appealed to investors because they had the largest nuclear powered facility in the country. Wisconsin Energy was said to be pushing ahead with its renewable energy standard to get 10 percent of power from clean energy sources by 2015. Goldman Sachs was also in the list.

Look to some of the banks that are trading energy stocks, Farrel said.

First Solar is also attractive the investors said, although they admitted it will be a volatile stock during the next couple of days. SunPower Corp., Suntech Power and Itron Inc were highly recommended.