Constellation Energy Group Inc., owner of Baltimore’s utility, bought a minority stake in closely held Astrum Solar Inc. to offer solar installation services to its 1 million retail power customers.

Back in March, Shelley Cohen and Mike Gala sent out a request to contractors to submit proposals on their project: to have solar panels installed on the roof of their colonial home in the District.

The market has been shining bright on the solar industry as of late. And it doesn't look like the sun will be setting any time soon - especially with all of the incentives available to those looking ...

Astrum Solar officials said the average solar electric system in Cumberland County right now is about 5 kilowatts, which has an initial price tag of about $30,000. With a 30 percent federal tax credit ...