Fuel Mix and Emissions Disclosure

February 08, 2007


Montana's 1997 restructuring law included requirements for the provision of information to consumers about electricity supply services. The Montana Public Service Commission proposed rules on November 8, 1999 calling for the disclosure of fuel mix and environmental impact information. These regulations have yet to be implemented. The proposed environmental disclosure regulations would require retail electricity suppliers to disclose information on fuel mix and emissions in a standard format at least twice a year along with product offers and advertisements. Under the proposed rules, electricity providers that do not make claims about specific purchases may disclose fuel mix data for net system power for the previous calendar year. Suppliers that make a "claim of specific purchases" or make a "claim-based sale" must provide data on the projected fuel mix for the coming year or compare fuel mix data with net system power for the previous calendar year. Renewable resources can be disclosed as a single resource category. Retail suppliers are also required to disclose carbon dioxide, sulfur dioxide, and nitrogen oxides emissions as well as the amount of spent nuclear fuel generated compared to the regional average, as represented by net system power. Hydro resources must be presented as a percentage of non-low-impact hydro used. The promulgation of final rules may be delayed because the original timetable for retail access has been modified.

Program Overview

Implementing Sector: State
Category: Regulatory Policy
State: Montana
Incentive Type: Generation Disclosure
Web Site:
Start Date:
Eligible Renewable/Other Technologies:
Fuel Mix: Renewable Energy Resources (listed above), Coal, Natural Gas, Nuclear, Other
Emissions: CO2, NOx, SO2, Nuclear Waste
Distribution and Frequency: With product offers and advertisements
Twice a year
Standard Format Required: Yes


Name: Proposed Rules I-V for MCA Title 69, Chap. 8


Name: Will Rosquist
Organization: Montana Public Service Commission
Address: 1701 Prospect Avenue
Helena MT 59620-2601
Phone: (406) 444-6359
Email: wrosquist@mt.gov

This information is sourced from DSIRE; the most comprehensive source of information on incentives and policies that support renewables and energy efficiency in the United States. Established in 1995, DSIRE is operated by the N.C. Clean Energy Technology Center at N.C. State University.