Seasonal Off-Peak Distribution Service – SD-1

Seasonal Off-Peak Distribution ServiceSD-1 [20 kB PDF]
A special rate schedule for commercial/industrial customers whose entire gas occurs during the natural gas off-peak season of May through December 1 (depending on conditions this can be extended back into April or forward into December). MGE provides delivery of natural gas from the city gate (where an interstate pipeline connects to MGE's distribution system) through our facilities to you during this period.

Often used by separately metered grain drying facilities and asphalt production facilities.

Customers must sign a one year contract. If a customer is currently on one of the general service rates and using firm gas sales, a one-year notice is required prior to moving to SD-1 service.

  • To start service, contact your MGE marketing representative or (608) 252-7222(608) 252-7222 .
  • Service can start at any time during the off-peak season, provided that the notice provision is satisfied.
  • MGE may require you to pay a deposit in accordance with guidelines established in the Wisconsin Administrative Code, Chapter PSC 134.

Gas supply and balancing service options for SD-1 customers
Purchase gas supply directly from MGE or from an alternative (third-party) supplier.

  1. Natural gas supply from MGE: MGE purchases natural gas, contracts with interstate pipeline companies to transport this supply to our local distribution area and balances purchases with your usage using pipeline storage and balancing services. Learn more about: How MGE Buys Natural Gas

    Natural gas service is provided through Interruptible Gas Sales Service for SD-1 customers:

    • Interruptible Gas Sales Service (IS-1 [24 kB PDF]) – MGE provides company-owned natural gas supply on a lower-cost interruptible basis. MGE does not contract for firm interstate pipeline capacity to guarantee delivery of supply for IS-1 service, so customers taking this service are required to stop using gas when requested to do so. Because of this, IS-1 customers’ natural gas service charge is lower than the monthly FS-1 natural gas service charge. You must have the ability to interrupt service taken under IS-1. Because interruption typically isn’t necessary during the off-season, special metering typically isn’t required when IS-1 service is used by SD-1 customers. A contract is required for IS-1 service.

  2. Natural gas supply from a third-party supplier: You purchase gas from a different supplier. You then need an MGE balancing service because the interstate pipelines hold MGE accountable for the difference between what your supplier delivers to MGE for you and what you actually use (daily imbalances). The combination of distribution service with balancing service is often referred to as "utility transportation service."

We offer Daily Balancing Service to SD-1 customers:

  • Daily Balancing Service (DBS-1 [66 kB PDF] - MGE balances the deliveries that are made by your third-party natural gas supplier with your actual natural gas use daily. A contract is required to for DBS-1 service and special equipment will need to be installed at your gas meter site.