Robocall from Maryland Green Energy Study Group has called 5x in last 3 days, that I know of!
Today I answered and pressed #4 to speak to someone. No one picked up, but I could hear bored office workers chatting about a tv show.
Update. They called again today and left a pre-recorded message claiming to be the "Green Energy Study Group." If you search on this name on the internet you will find they have been making a lot of identical calls out west using different phone numbers than this one. Wanting to set up an appointment for "select" consumers with high energy bills and claiming you will receive a 30-50% reduction in you power bill. I wasn't there to take the message. If you happen to pick up there is an option to press "5" to be removed from their list. Other complainants say it doesn't work. Sounds very much like a telemarketing scam, but they cleverly word everything such that they can't be accused of selling anything.