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New Ulm Public Utilities

Minnesota Utility Interconnection & net metering rules
Net Metering Allowed1
NEM TypeMonthly
Line Taps Allowed0
Load Taps Allowed0
AC Disconnect RequiredYes

Net metering & export

Net Metering Allowed
1
NEM Type
Monthly
TOU Utility
0
Post Solar Billing Method
Net Metering
Net Excess Generation Notes

Kilowatt-hours produced by the QF in excess of the monthly usage shall be supplied as an energy credit on the customer's energy bill, carried forward and applied to subsequent energy bills, with an annual true-up on December 31. Excess energy credits existing as of December 31 shall default back to the Utility with no compensation to the QF.

Rebates Offered
0
Deregulated
1

Interconnection & taps

Approval Req To Install
Yes
Interconnection Level
3
Line Taps Allowed
0
Load Taps Allowed
0
Automatic Transformer Upgrade Size
0

System size & offset

System Size Restrictions
40
System Size Restriction Type
AC kW
System Size Battery Included
0
System Size Includes Existing Systems
0
Offset Type
No Restrictions
Offset Value
0
Offset Calculation Period
0
Industry Standard Watts Sqft
2

Metering & disconnect

Production Meter Required
Yes
Production Meter Position
Inv-Disco-PM-POI
Production Meter Labeling
Production Meter
AC Disconnect Required
Yes
AC Disconnect Labeling
Utility Disconnect Switch

Plans & docs

Site Plan Reqs

Site Diagram shall include the following:

  • Shall be to scale
  • Location of DER
  • Location of meter(s)
  • Location of Utility AC disconnect
  • Location of PCC/RPA/PoC
  • Location of underground/overhead electrical wires - If underground, shall include any easements/right of ways
SLD Reqs

The one-line diagram shall include, but not limited to, the following information: • Applicant Name

  • Application ID
  • Installer name and contact information
  • Address where DER system will be installed
  • Correct electrical position of all equipment, including but not limited to: Panels, Inverter, DC and AC disconnects.
  • Distance between equipment
  • Labeling found on equipment
  • Total Aggregated AC nameplate rating of DER
  • DER protection elements


The one-line diagram shall be signed and stamped by a Minnesota Professional Engineer if the DER is larger than 20 kW and uncertified or larger than 250 kW and certified.

Electric Service Reqs

IEEE 1547/UL 1741

Install Reqs

AC Disconnect Requirements

  • . The Utility AC Disconnect shall be located within 10 feet of the main service meter.


Production Meter and Meter Socket Requirements

The Area EPS Operator requires the main meter at the PCC and a production meter at the PoC.


  • Meter sockets must be UL (Underwriters Laboratories) of ARL (Applied Research Laboratories) approved.
  • All metering for a single service must be grouped in a 10-foot area.
  • All self-contained meter sockets must be a bypass type socket with a manually operated lever bypass.
  • Self-contained meter sockets will not be accepted for systems with voltages greater than 300 Volts.
  • CT cabinets with CT’s and VT’s must be supplied by the applicant unless otherwise agreed upon by the Area EPS Operator.
Placards

All signage and labeling shall meet applicable NEC requirements including but not limited to articles: NEC 110.21 (B), 690.13 and 750.10.


AC Disconnect:

  • The Utility AC disconnect shall be labeled as “UTILITY AC DISCONNECT”. The Utility AC Disconnect shall be located within 10 feet of the main service meter
  • If the Utility AC Disconnect is not located within 10 feet of the main service meter, a permanently affixed waterproof placard shall be located within 10 feet of the main service meter. The placard shall include a mapped representation of the property with the location of the Utility AC Disconnect clearly denoted.
  • If a single Utility AC Disconnect cannot be used to disconnect all DERs, all Utility AC disconnects should include numerical identification such as “UTILITY DER AC DISCONNECT 1 OF 2” or similar. The number of disconnects required to be operated to isolate the DER from the utility should be clearly identified. A permanently affixed waterproof placard shall be located within 10 feet of the main service meter clearly indicating the number and locations of the multiple Utility AC Disconnects

Production Meter:

  • The production meter shall be labeled as “DER PRODUCTION METER” or similar. If there are multiple DER types present at a location the production meter shall indicate the type of DER behind the meter.
Electrical Stamp Required
0
Equipment Approvals
California Energy Commission
Meter Num Req SLD 3LD
0
ESID Num Req SLD 3LD
0
Website
link
Phone
(507) 359-8264

Other details

Revision Required
1
Mod Swap Requires Planset
1
Address ID
9527457
Express Planset Eligible
No
Compiled from public records, 2026. Tariffs and interconnection rules change; verify with New Ulm Public Utilities before you rely on this. The useful move: if an installer says you need a main panel upgrade, ask how these tap and interconnection policies were considered first.