Duke Energy Carolinas, LLC: generator, battery backup & CPAP rules
Service area: Western and central North Carolina, including Charlotte, Greensboro, Winston-Salem and Durham.
Meter collar transfer switches
No published rule found
We found no official Duke Energy statement that allows or bans meter collars such as the Tesla Backup Switch, ConnectDER, GenerLink or Enphase IQ Meter Collar in North Carolina. The edition of Duke's Carolinas service manual we could read has no rule on them. Ask Duke for written approval before you buy one.
Generator and battery disconnect requirements
Duke's Carolinas service manual (2020 edition) says transfer switches for emergency and standby generators must be break-before-make, or fast transition with the generator and grid connected for no more than 100 milliseconds. Systems that stay connected to the grid longer have extra requirements set by Duke. Generators that run in parallel with the grid must be set up so they cannot send power back onto Duke's lines, and you must contact Duke before connecting one.
Gas meter upgrades for standby generators
Gas utility: Piedmont Natural Gas
Piedmont says it can extend gas lines for generators and sells generators through a partner company. We found no published Piedmont fee or policy for upgrading a gas meter for a standby generator. Call Piedmont with the generator's gas load before you buy.
Estimate your gas load with our gas meter calculator and read how gas meter sizing works.
Medical program for CPAP, BiPAP and oxygen users
- Program
- Medically Essential Program
- What it provides
- Duke places an indicator on your account and meter so a past-due account gets careful handling before any disconnection. It is not a discount. It does not stop disconnection for nonpayment, and it does not put you first for repairs after a major outage.
- CPAP / BiPAP
- Not named. Duke says the program is for a household member who is chronically or seriously ill, handicapped or on a life support system.
- Renewal
- Not stated on Duke's program page.
Backup battery or generator programs
- Program
- None found
- What it provides
- We found no Duke Energy backup battery or generator program for medical customers in North Carolina.
Frequently asked questions
Does Duke Energy Carolinas allow meter collar transfer switches like the Tesla Backup Switch?
No published rule found. We found no official Duke Energy statement that allows or bans meter collars such as the Tesla Backup Switch, ConnectDER, GenerLink or Enphase IQ Meter Collar in North Carolina. The edition of Duke's Carolinas service manual we could read has no rule on them. Ask Duke for written approval before you buy one.
Does Duke Energy Carolinas have a program for customers who use a CPAP or other medical equipment?
Medically Essential Program: Duke places an indicator on your account and meter so a past-due account gets careful handling before any disconnection. It is not a discount. It does not stop disconnection for nonpayment, and it does not put you first for repairs after a major outage. Not named. Duke says the program is for a household member who is chronically or seriously ill, handicapped or on a life support system.
Does Duke Energy Carolinas offer backup batteries or generator rebates for medical customers?
We did not find a current backup battery or generator program for medical customers at Duke Energy Carolinas. We found no Duke Energy backup battery or generator program for medical customers in North Carolina.
How do I get a bigger gas meter for a standby generator in the Duke Energy Carolinas area?
Piedmont Natural Gas: Piedmont says it can extend gas lines for generators and sells generators through a partner company. We found no published Piedmont fee or policy for upgrading a gas meter for a standby generator. Call Piedmont with the generator's gas load before you buy.