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Bioenergy Market Adjusting Tariff (BioMAT) Program

Long-term wholesale electricity contracts for eligible generators

The Bioenergy Market Adjusting Tariff (BioMAT) Program was created by Senate Bill 1122 for small bioenergy renewable generators less than 5 MW in size. In 2021, the California Legislature expanded the BioMAT program to include Community Choice Aggregators like Pioneer.

Operating under a California Public Utilities Commission (CPUC) approved tariff, participating generators can enter into a standard contract with Pioneer at a price set by a market-based mechanism.

BioMAT Program Categories

  • Category 1: Generators that use biogas as fuel
  • Category 2: Generators that use dairy and agricultural waste as fuel
  • Category 3: Generators that use sustainable forest waste from high-hazard zones

Program Requirements

To qualify for participation in the BioMAT program, generators must:

  • Be a biomass renewable generator in Pioneer’s service area. Visit the Who We Serve page to view our service territory, or call our local customer care team at (916) 758-8969.
  • Be less than 5 MW in capacity and deliver no more than 3 MW into the grid.
  • Commence project operations after [date].
  • Meet one of the following criteria:
    • Passed the interconnection Fast Track screens
    • Passed Supplemental Review
    • Completed a System Impact Study in the Independent Study Process
    • Completed a Distribution Group Study Phase 1 Interconnection Study in the Distribution Group Study Process
    • Completed a Phase 1 Study in the Cluster Study Process.

For more details about eligibility requirements, pricing, terms and the application process, refer to the BioMAT Power Purchase Agreement (PPA).

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How to Apply

Pioneer has made its online platform, hosted by Accion Power, to register applicants, process applications, administer Program Periods (auctions), and provide further information.

If you manage a biomass facility that is eligible for the BioMAT program and are interested in contracting with Pioneer, click the ‘Apply’ button below.

  1. Review the tariff.
  2. If you believe you are eligible, visit the Central BioMAT website, complete and submit a Program Participation Request (PPR).
  3. Identify Pacific Gas & Electric as the investor-owned utility for “Select the Load Serving Entity (LSE)” for your territory.

Frequently Asked Questions

Biogas is a fuel that is created by the breakdown of organic matter by microorganisms in the absence of oxygen. It is often created in wastewater treatment plants and municipal organic waste facilities.

The parts of plants not consumed as food can be used as biomass energy. These often include rice husks, corn husks and straw.

High-hazard zones are areas where tree mortality directly coincides with critical infrastructure. A map of high-hazard zones in California can be found on California’s State Geoportal website.

It depends. Category 2 (Dairy) must use 100% of its feedstock from dairy digester gas. All other Categories may utilize up to 20% of their feedstock from another qualifying BioMAT Category.

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