SoCalGas - Biogas Conditioning and Upgrading Services Tariff
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Biogas Conditioning and Upgrading Services Tariff

The Biogas Conditioning/Upgrading Services Tariff, G-BCUS, is an optional tariff service for customers that allows Southern California Gas Company (SoCalGas®) to plan, design, procure, construct, own, operate and maintain biogas conditioning and upgrading equipment on customer premises.

The biogas will be conditioned/upgraded to the gas quality specifications as requested by the customer and agreed to by SoCalGas. Examples of customer end-use applications that can be served by the Biogas Conditioning/Upgrading Services Tariff include, but are not limited to: renewable natural gas for pipeline injection, CNG for vehicle refueling stations, and conditioned/upgraded biogas for combined heat and power (CHP) facilities.

Non-utility service providers may offer services that are the same or similar to the Biogas Conditioning/Upgrading Services Tariff and customers are encouraged to explore these service options. To assist customers in understanding all of their service options, SoCalGas has compiled a list of suppliers1 which includes project developers, consultants, equipment manufacturers, installers and others.

Customers interested in the Biogas Conditioning/Upgrading Services Tariff should be aware of the following:

  • The Biogas Conditioning/Upgrading Services Tariff is a fully elective, optional, nondiscriminatory tariff service that is neither tied to any other tariff or non-tariff services the customer may receive from SoCalGas nor will it change the manner in which these services are delivered. As an example, requests for an interconnection capacity study are processed on a “first come, first served” basis for all customers, including customers that elect to take the Biogas Conditioning/Upgrading Services Tariff and customers that do not.
  • Any agreement to provide service under the Biogas Conditioning/Upgrading Services Tariff is at SoCalGas’ discretion and will depend on non-discriminatory factors such as safety, SoCalGas resource availability, technical feasibility, and acceptability of commercial terms.
  • SoCalGas will not engage in any activities upstream from the point of receipt of untreated biogas or downstream from the service delivery point for conditioned/upgraded biogas. In particular, the establishment of the utility interconnection facility is the responsibility of the tariff customer.
  • The customer is the sole owner of any gas treated under the Biogas Conditioning/Upgrading Services Tariff. The customer is solely responsible for ensuring that treated biomethane intended for pipeline injection meet Rule 30 standards for pipeline injection of customer-owned gas.

Biogas Conditioning/Upgrading Services Tariff Frequently Asked Questions

  • What are some examples of end-use applications that would use this tariff?

    Examples of customer end-use applications that can be served by the Biogas Conditioning/Upgrading Services Tariff include, but are not limited to: renewable natural gas for pipeline injection, CNG for vehicle refueling stations, and conditioned/upgraded biogas for combined heat and power (CHP) facilities.

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    • Is the Biogas Conditioning/Upgrading Services Tariff mandatory if customers want to put renewable natural gas (biomethane) into the pipeline?

      No. Customers may elect to install and maintain their own biogas conditioning and upgrading equipment or engage a third party to install and maintain their biogas conditioning and upgrading equipment rather than take the Biogas Conditioning/Upgrading Services Tariff from Southern California Gas Company.

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      • Does enrollment in this tariff result in any preferential treatment when it comes to getting gas service?

        No. The Biogas Conditioning/Upgrading Services Tariff is a fully elective, optional, non-discriminatory tariff service that is neither tied to any other tariff or nontariff services the customer may receive from Southern California Gas Company nor will it change the manner in which these services are delivered. As an example, requests for an interconnection capacity study are processed on a “first come, first served” basis for all customers, including customers that elect to take the Biogas Conditioning/Upgrading Services Tariff and customers that do not.

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        • Who can receive service under the Biogas Conditioning/Upgrading Services Tariff?

          The Biogas Conditioning/Upgrading Services Tariff is generally applicable to producers of biogas. Any agreement to provide service under the Biogas Conditioning/Upgrading Services Tariff is at Southern California Gas Company's (SoCalGas®) discretion and will depend on nondiscriminatory factors such as safety, SoCalGas resource availability, technical feasibility, and acceptability of commercial terms.

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          • Under this service, would Southern California Gas Company be responsible for all equipment connected to the biogas conditioning and upgrading facilities?

            No. This service does not cover any activities either upstream from the point of receipt of untreated biogas or downstream from the service delivery point for conditioned/upgraded biogas.

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            • Who owns biogas treated under the Biogas Conditioning/Upgrading Services Tariff?

              Any gas processed under the Biogas Conditioning/Upgrading Services Tariff is solely owned by the customer before, during, and after processing. It is solely the customer’s responsibility to ensure that treated biomethane intended for pipeline injection meet Rule 30 standards for pipeline injection of customer-owned gas. The customer is solely responsible for any damage to pipeline integrity or human health which results from improperly treated gas entering Southern California Gas Company's distribution system.

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              If you have any questions, please email us at bcsinfo@semprautilities.com


              1Provided for information purposes only. There are numerous qualified non-utility providers of products and services needed for construction and operation of biogas conditioning and upgrading facilities, but Southern California Gas Company does not recommend or endorse the products or services of any particular party listed herein, or represent that the particular products or services are fit for any particular purpose or use. By publishing this list, Southern California Gas Company is not acting in an advisory capacity, and does not assume any responsibility for use of the list by customers. Although commercially reasonable efforts are used in posting this list, no representation is made that it is complete or free from error. Related information is posted at www.socalgas.com. To be added to the list, please send an e-mail to jlucas@semprautilities.com. Vendors are listed alphabetically and the order of listing implies no preference.