Maryland Gov. Martin O’Malley is playing host to four of his counterparts from around the country and more than 200 donors to the Democratic Governors Association at a conference that begins Tuesday night in Cambridge.

The two-day gathering, which is closed to the media, is advertised to focus on energy policy, one of the favorite topics these days of O’Malley, who became DGA chairman in December. The organization, which seeks to elect Democratic governors, holds several such “policy conferences” each year.

In addition to a three-hour discussion Wednesday morning on topics including energy efficiency and renewable energy, the agenda includes a reception, breakfast and luncheon. Attendees are gathering at the Hyatt Regency Chesapeake Bay Golf Resort, Spa and Marina.

According to a DGA spokeswoman, the event is open to DGA members, donors that include individuals, corporations and political action committees. The conference fee is $250.

Besides O’Malley, the Democratic governors slated to attend include: Bev Perdue of North Carolina, the DGA vice chairwoman; Dannel P. Malloy of Connecticut; Jack Markell of Delaware; and Brian Schweitzer of Montana.