Email is monitored Monday through Friday, 8 a.m. to 5 p.m. Our office is open Monday through Friday, 8 a.m. to 5 p.m., excluding holidays. Facebook is monitored 8 a.m. to 5 p.m. daily and as needed.

What would you like to do?

Send us a message: Please click here to send us a message.


Fax: 770.370.2048

Commercial Energy Audits: 770.370.2072

Commercial Marketing: 770.370.2072

Co-op Connections Discount Card Program: 770.370.2436

EMC Security: 770.963.0305

Energy Efficiency 101: 770.370.2070

Gas South: 855.802.2768 

Go Energy Financial Credit Union: 770.949.3557

Member Services: 770.942.6576

New Commercial Service: 770.942.6576

New Residential Service: 770.942.6576

Operation Round Up: 770.370.2080

Outages: 1.866.GREYSTONE (1.866.473.9786)

Public Relations and Communications: 770.370.2273

Rebates: 770.370.2070

Request Temporary Service: 770.942.6576

Residential Energy Audits: 770.370.2070

Start, Stop, Transfer service: 770.942.6576

SurgeMaster Plus: 770.370.2070

Main Office
3400 Hiram Douglasville Highway
Hiram, GA 30141

Postal Address:
PO Box 897
Douglasville, GA 30133

GreyStone Holidays:

GreyStone Power’s business offices are closed for the following holidays. Representatives are on duty 24 hours a day, 365 days a year in care of members. Kiosks are available for making payments or you may pay online.

  • New Year’s Day
  • Martin Luther King Jr. Day
  • Memorial Day
  • Independence Day
  • Labor Day
  • Thanksgiving Day
  • Day After Thanksgiving
  • Christmas Eve
  • Christmas

Management: Gary Miller, President/CEO

Board of Directors: Click here to find your representative on the board