(A) Coal

(B) Natural gas

(C) Nuclear

(D) Large hydroelectric

(E) Eligible renewable

(F) Unspecified power

(G) Other

(A) In order for specified electricity to be assigned the GHG emissions intensity of the associated generator, a retail supplier 1) must have executed a purchase agreement or ownership arrangement prior to generation of the procured electricity and, 2) have e-tags for all delivered electricity that is imported. If the specified electricity does not meet both 1) and 2), it will be assigned the GHG intensity of unspecified power.

(B) In order to be assigned the GHG emissions intensity of an eligible renewable generator, the delivered electricity from the renewable generator must be procured with the associated RECs. If claimed as a specified purchase on the power content label, the associated RECs shall not be sold. Electricity purchases from an eligible renewable generator without the associated RECs shall be classified as unspecified power.

(A) The Energy Commission shall annually assign a GHG emissions intensity to each generator that delivers electricity to a California balancing authority, and provide the most recent GHG emissions intensities of generators for retail suppliers to use in annual reporting to the Energy Commission pursuant to section 1394.

(B) For all generators with reported or assigned emissions under MRR, the Energy Commission shall calculate GHG emissions intensities as follows:

Equation 5: EF = E/G

Where:

EF = Generator's emissions intensity for the previous calendar year, measured in metric tons CO₂e/MWh

E = Sum of generator's most recent annual GHG emissions as reported under MRR and expressed in metric tons of CO₂e

G = Generator's net electricity production as reported to MRR, measured in MWh. If net electricity production data is not available under MRR, net electricity production data submitted under Form EIA-923 Power Plant Operations Report (OMB No. 1905-0129) will be used; specifically, Page 1 Generation and Fuel Data, Year to Date Net Generation

(C) For any generators without reported or assigned emissions under MRR, the Energy Commission shall calculate the sum of GHG emissions associated with the generator using heat of combustion data and default emission factors by fuel type pursuant to section 95111 (b)(2)(C) of the MRR.

A generator's GHG emissions shall be calculated as follows:

Equation 6: E = ST x HC

Where:

E = Sum of generator's CO₂, N₂O, and CH₄ emissions for the previous calendar year

ST = Stationary fuel combustion emissions intensity of CO₂, N₂O, and CH₄, expressed in metric tons per MMBtu

HC = Heat content of fuel combusted for electricity production of a generator for the previous calendar year, expressed in MMBtu

A generator's GHG emissions intensity shall then be calculated by converting emissions to CO₂e and applying the method described in Equation 5.

(D) For any generators that cannot be assigned a GHG emissions intensity using the methods described in subdivisions (c)(2)(B) or (C), including new generators and generators located outside the U.S., the Energy Commission shall assign an emissions intensity based on the average GHG emissions intensity of generators using the corresponding fuel type reported under this program.

(E) The Energy Commission shall determine the portion of GHG emissions of a cogenerating unit attributable to electricity production in the previous calendar year as follows:

Equation 7: E_e = E_t x F_e/F_t

Where:

E_e = GHG emissions attributable to electricity production

E_t = Total GHG emissions attributable to a generator in the previous calendar year

F_e = Fuel consumed by a generator for electricity production in the previous calendar year, based on data submitted under Form EIA-923 Power Plant Operations Report (OMB No. 1905-0129); specifically, Page 1 Generation and Fuel Data, Electric Fuel Consumption MMBtu.

F_t = Total fuel consumed by a generator in the previous calendar year, based on data submitted under Form EIA-923 Power Plant Operations Report (OMB No. 1905-0129); specifically, Page 1 Generation and Fuel Data, Total Fuel Consumption MMBtu

A cogenerating unit's GHG emissions intensity shall then be calculated by applying Equation 5.

(F) For generators with discrete generating units that are owned by or contracted to separate retail suppliers, the Energy Commission shall use Equation 5 to calculate GHG emissions intensities for each generating unit.

(G) The Energy Commission shall not attribute carbon dioxide emissions associated with electricity production from biogenic fuels to retail suppliers for GHG emissions intensity calculations.

(A) Sum all GHG emissions attributable to the electricity portfolio by multiplying the adjusted net purchase of each specified purchase or purchase of unspecified power in the electricity portfolio by the corresponding emissions factor, then summing the products as follows:

Equation 8: E = Σ (AN_i x EF_i)

Where:

E = Sum of all GHG emissions attributable to the electricity portfolio

AN_i = Adjusted net purchase from generator i or unspecified power pursuant to subdivision (a)(6)

EF_i = Emissions factor of generator i

(B) Divide the sum of all GHG emissions attributable to the electricity portfolio by the retail sales of the electricity portfolio as follows:

Equation 9: EI = E/RS

Where:

EI = GHG emissions intensity of electricity portfolio for the reporting period

E = Sum of GHG emissions attributable to electricity portfolio

RS= Retail sales of electricity portfolio

(A) Each retail supplier shall provide to the Energy Commission a purchase agreement or ownership arrangement documentation substantiating that any eligible firmed-and-shaped product for which it is claiming an exclusion was executed prior to January 1, 2019.

(B) Retail suppliers with specified purchases of eligible firmed-and-shaped products under a purchase agreement or ownership arrangement that has been amended or extended as specified in paragraphs 1., 2., or 3. on or after January 1, 2019, shall report GHG emissions according to the source of the delivered electricity for inclusion in the GHG emissions intensity calculation of the electricity portfolio pursuant to subdivision (c)(1):

(A) When a local publicly owned electric utility reports excess zero-GHG generation in an annual report filed pursuant to section 1394(a), the Energy Commission shall assign each megawatt hour of excess zero-GHG generation a negative credit equal to the default emissions factor for unspecified electricity as specified under section 95111(b)(1) of the MRR. When the local publicly owned electric utility wishes to use this excess zero-GHG generation to adjust emissions in a subsequent reporting year, it shall make that election in its annual report and the Energy Commission shall confirm that there is sufficient excess zero-GHG generation for the requested adjustment and that it was generated within twenty years of its elected use. If there is insufficient excess zero-GHG generation or it was generated more than twenty years prior, the Energy Commission shall inform the local publicly owned electric utility and the utility shall submit a corrected annual report.

(B) The Energy Commission shall adjust the GHG emissions of a local publicly owned electric utility only once for each megawatt hour of excess generation of zero-GHG electricity.

(C) The local publicly owned electric utility shall submit agreements to the Energy Commission substantiating that the relevant generation was generated in excess of its retail and wholesale sales of specified power with each annual report that identifies excess zero-GHG generation.