M-T, TH: 8:30-3:00
W: 8:30-7:00 / F: 8:30-12:30
Hours vary by department
(609) 397 3240
570 Rosemont Ringoes Road
PO Box 500, Sergeantsville, NJ 08557

M-T, TH: 8:30-3:00
W: 8:30-7:00 / F: 8:30-12:30
Hours vary by department
(609) 397 3240
Effective December 2025, Constellation NewEnergy, Inc. is the provider for those participating in the Hunterdon Area Energy Cooperative.
Opt-Out: (844) 607-8523)
100% Green Opt-In: (844) 607-8523
For Any and All Questions Regarding the Hunterdon Area Energy Cooperative
Please call Concord Energy Services' customer care team at 866-688-5197 and select option 3 or visit the HAEC Program web page: https://njaggregation.us/haec.