Trevor Mihalik
Executive Vice President and Chief Financial Officer at Sempra
Thanks, Lisa. We made solid progress in the first quarter with a number of positive developments at each of our operating companies. Beginning with California, we're excited about SDG&E's completion of the Cleveland National Forest Fire Hardening and Safety Project, which is an example of SDG&E's commitment to making its electric system safer and more reliable. Next, I'd like to remind you of an important decision issued by the CPUC in February, establishing a statewide renewable natural gas procurement standard with procurement targets for California's investor-owned gas utilities in 2025 and 2030. This decision reaffirms the role of renewable natural gas in the state, and we view it as a significant step toward the future of cleaner fuels in California. Against that backdrop, SoCalGas continues to execute on its own goal of 20% renewable natural gas delivery to its core customers by 2030.
In April, both SDG&E and SoCalGas filed their cost of capital applications to update each of their authorized rates of return, which would be effective for 2023 through 2025. We expect a decision by year-end. Regarding SDG&E's off-cycle cost of capital application for 2022, we expect a decision later this year. For more information on the cost of capital filings, please refer to the appendix. Additionally, both utilities plan to file their general rate cases with the CPUC in the coming weeks to update their authorized revenue requirements for 2024 through 2027. Among other considerations, our filings will focus on safety and reliability investments, while also looking to advance the state's clean energy goals. We look forward to working with the commission and all of our stakeholders on these important regulatory proceedings. Shifting to Texas. It's important to note that in 2021, it was a record year for Oncor in terms of the new and active requests for transmission interconnections, highlighting the rapid economic growth in its service territory.
This growth has continued in the first quarter of 2022, with a 78% increase in new interconnection requests compared to the first quarter of 2021. Oncor's service territory continues to experience strong new commercial development and population increases as demonstrated by Oncor connecting approximately 16,000 new premises in the first quarter. Additionally, last month, Oncor's Board of Directors approved an update to its 2022 capital plan from $2.8 billion to $3 billion. While Oncor's Board typically approves the annual capital plan in October, this off-cycle approval is another example of the robust economic growth in Texas, driving investments to support transmission and distribution expansion. Also in March, Oncor received approval of its transmission cost of service filing for the recovery of its 2021 capital investments. Oncor also plans to file its rate case with the Public Utilities Commission of Texas later this month. Now let's shift to Sempra Infrastructure, which is focused on making critical new investments that support the energy transition. As part of this strategy, Sempra Infrastructure is working to export LNG directly from the Gulf and Pacific Coasts to customers in Europe and Asia.
Furthermore, our U.S.-Mexico cross-border infrastructure business supports the growing integration of North American energy markets. As part of our effort to develop Cameron LNG Phase II, we've successfully reached a number of important commercial and permitting milestones and are now progressing towards the engineering stage of the project. As a reminder, in January, we filed our amendment with the FERC to transition from gas turbines to electric drives. If approved, this would result in a more capital-efficient single train with an estimated 44% reduction in greenhouse gas emissions compared to the previous design. Also, last month, we signed project development agreements and an HOA with Cameron LNG partners to advance Phase two of the project. These arrangements provide the commercial framework for the development of a fourth train as well as increased production capacity through debottlenecking activities from the existing three trains. Sempra Infrastructure contemplates taking its share of the offtake and selling it under long-term sale and purchase agreements to third parties.
In summary, under the proposed arrangement, Cameron LNG Phase two would be fully contracted prior to reaching a final investment decision. In addition, we selected two FEED contractors to run a competitive process, which is intended to culminate in a fixed-price turnkey EPC contract. The FEED process is expected to conclude in the summer of 2023, which would allow us to evaluate taking FID thereafter. We believe we have a strong plan of execution, and this detailed and rigorous FEED process will result in better scope, definition, cost and schedule for the project. Next, as we continue to advance our dual market strategy, we broadened our alliance with TotalEnergies to advance the Vista Pacifico LNG project and to explore renewable opportunities in North America. The MOU to develop Vista Pacifico LNG contemplates that TotalEnergies would receive 1/3 of the project offtake and potentially participate in the project equity. Given the increasing demand for LNG projects, we're continuing to have active discussions with market participants around Port Arthur LNG.
As a reminder, the proposed facility at Port Arthur has advanced permitting and design work and is targeted to have total capacity of approximately 13.5 Mtpa. Lastly, at Sempra Infrastructure, we continue to expect the sale of a 10% interest to ADIA for approximately $1.8 billion to close in the second quarter, subject to customary closing adjustments and conditions. Please turn to the next slide. Earlier this morning, we reported first quarter 2022 GAAP earnings of $612 million or $1.93 per share. This compares to first quarter 2021 GAAP earnings of $874 million or $2.87 per share. On an adjusted basis, first quarter 2022 earnings were $924 million or $2.91 per share. This compares to our first quarter 2021 adjusted earnings of $900 million or $2.95 per share. Please turn to the next slide.
The variance in the first quarter 2022 adjusted earnings compared to the same period last year can be explained by the following key items: $42 million of lower earnings at Sempra Infrastructure attributable to higher noncontrolling interest, consisting of: $24 million increase as a result of the decrease in our ownership interest of Sempra Infrastructure Partners, net of an increase in our ownership interest in IEnova, and $18 million, primarily due to an increase in Sempra Infrastructure Partners' subsidiaries net income. This was offset by $27 million of higher equity earnings at Sempra Texas Utilities, primarily due to the increased revenues from the rate updates to reflect increases in invested capital, higher customer consumption and customer growth; $25 million of higher transportation and terminal earnings at Sempra Infrastructure; and $22 million of higher CPUC base operating margin, net of operating expenses at SDG&E. Please turn to the next slide. To summarize, we've continued to invest in our record capital plan to help build the energy networks of the future. We're pleased about the strength of our financial performance this quarter, and we'll remain highly focused on executing our strategy and capital program throughout the remainder of the year. With that, this concludes our prepared remarks. We'll now stop and take your questions.