Environmental group Rogue Climate will host a free "Clean Energy Day" from noon to 4 p.m. Sunday, May 4, at the Medford Commons. There will be speakers, demonstrations and music.

Environmental group Rogue Climate will host a free "Clean Energy Day" from noon to 4 p.m. Sunday, May 4, at the Medford Commons. There will be speakers, demonstrations and music.

Speakers include state Sen. Alan Bates, D-Medford, Rogue Climate officials and Eric Hansen of True South Solar. Medford-based band The Seasons will perform. Participants will be invited to make posters about the positive effects of cleaner energy.

The Medford Commons is at East Fifth and North Bartlett streets.