For electricity used in residential charging of electric vehicles, credit calculations must be based on the total electricity dispensed (in kilowatt hours) to vehicles, measured by:
The use of direct metering (either sub-metering or separate metering) to measure the electricity directly dispensed to all vehicles at each residence; or
For residences where direct metering has not been installed, DEQ will calculate the total electricity dispensed as a transportation fuel based on analysis of the total number of BEVs and PHEVs in a utility’s service territory based on Oregon Department of Motor Vehicles records. DEQ will perform this analysis at least twice a year and issue credits based on it. DEQ will select one of the following methods for estimating the amount of electricity charged based on its analysis of which is more accurate and feasible at the time it is performing the analysis:
An average amount of electricity consumed by BEVs and PHEVs at residential chargers, based on regional or national data; or
An analysis of the average electric vehicles miles traveled by vehicle type or make and model, which compares the total amount of estimated charging for those electric vehicle miles travelled with the total reported charging in those territories in order to determine the amount of unreported charging that can be attributed to residential charging. The analysis may be done on a utility territory specific or statewide basis.
If DEQ determines after the issuance of residential electric vehicle credits that the estimate under (b) contained a significant error that led to one or more credits being incorrectly generated, the error will be corrected by withholding an equal number of credits to the erroneous amount from the next generation of residential electric vehicle credits.
A credit generator or aggregator may propose an alternative method, subject to the approval of DEQ upon its determination that the alternative method is more accurate than either of the methods described in subsection (b).
Credits generated under this subsection will be calculated by DEQ under section 1 of this rule using the estimated amount of electricity under subsection (3)(b) and issued at least twice per year into the Oregon Fuels Reporting System account of the utility, its designated aggregator, or the backstop aggregator within three months of the close of that year.
Registered parties eligible to generate credits for the 2018 year also will generate credits for 2016 and 2017 residential electric vehicle charging.
Incremental Credits. In calculating incremental credits for actions that lower the carbon intensity of electricity, the credit calculations must be performed based on section (1) of this rule, except that the carbon intensity difference is calculated based on the carbon intensity of the renewable power and the carbon intensity used to calculate the base credits for that electric vehicle or charging equipment, and consistent with following requirements, as applicable:
Incremental credits for non-residential charging are generated upon the retirement of RECs that qualify under OAR 340-253-0470 (Determining the Carbon Intensity of Electricity)(5) by the credit generator, its aggregator, or the incremental aggregator, or by another entity on their behalf. For credit generators and their aggregators, RECs must be retired prior to or at the same time as the submittal as the quarterly report where the charging is being reported and REC retirement records must be submitted with the quarterly report as supplemental documentation. RECs may be retired by another entity on behalf of the credit generator or aggregator for their electric vehicle charging so long as it is clearly documented and that documentation is submitted with the quarterly report.
For incremental credits generated using a Utility Renewable Electricity Product or Power Purchase Agreement, evidence that the chargers were covered by such a product must be submitted at least annually along with a quarterly report. Upon request by DEQ, any entity using a Power Purchase Agreement or a Utility Renewable Electricity Product must produce evidence that the charging equipment was covered by that agreement or product for all time periods when the entity was claiming incremental credits.
For the incremental aggregator, incremental credits are generated when it retires RECs on behalf of non-residential electric vehicle charging.(d) Incremental credits for residential charging are generated by a utility or its aggregator when RECs are retired on behalf of that charging, or when a utility demonstrates to DEQ that EVs are being charged by customers enrolled in its Utility Renewable Electricity Products.