Cal Water Service gets CPUC proposed rate hikes
California Water Service Group announced that the California Public Utilities Commission issued a proposed decision on the 2024 General Rate Case for its largest subsidiary.
Rhea-AI Filing Summary
California Water Service Group announced that the California Public Utilities Commission issued a proposed decision on the 2024 General Rate Case for its largest subsidiary.
The proposal authorizes additional revenues of $92.3 million in 2026 (an 11.1% rate increase), $50.8 million in 2027 (a 5.5% increase), and $52.4 million in 2028 (a 5.4% increase). It would reauthorize a Monterey-style revenue adjustment mechanism, add sales reconciliation and balancing mechanisms, and adopt a rate design expected to better recover fixed costs, though it does not approve the company’s full decoupling request. Written comments are due April 2, 2026, and a final CPUC decision is expected around April 30, 2026.
Positive
- CPUC proposed decision authorizes significant multi-year revenue increases, including $92.3 million in 2026 (11.1% rate hike), $50.8 million in 2027 (5.5%), and $52.4 million in 2028 (5.4%), supporting earnings visibility for the California subsidiary.
- Regulatory mechanisms to stabilize revenues are expanded, with reauthorization of a Monterey-style revenue adjustment mechanism, new sales reconciliation, and balancing accounts plus a rate design expected to strengthen fixed-cost recovery.
Negative
- None.
Insights
Proposed CPUC decision points to meaningful, staged revenue increases.
The proposed decision for the 2024 California General Rate Case would authorize additional revenues of $92.3 million in 2026, $50.8 million in 2027, and $52.4 million in 2028, tied to rate increases of 11.1%, 5.5%, and 5.4% respectively. For a regulated water utility, this is a sizable multi-year uplift.
The proposal also reauthorizes a Monterey-style Water Revenue Adjustment Mechanism and cost balancing accounts, adds a sales reconciliation mechanism, and adopts a rate design expected to improve fixed-cost recovery regardless of sales volumes. However, it does not grant the broader decoupling the company requested.
Overall impact will depend on the final CPUC vote, with written comments due by April 2, 2026 and a final decision anticipated at the April 30, 2026 meeting or shortly after. Subsequent disclosures will clarify any modifications between the proposed and final decisions.
8-K Event Classification
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What did the CPUC’s proposed decision grant California Water Service Group (CWT) for its 2024 General Rate Case?
How might the proposed rate increases affect California Water Service Group’s revenue?
Did the CPUC proposed decision approve full revenue decoupling for CWT’s California operations?
What new or continued regulatory mechanisms are included in the CPUC proposal for California Water Service?
When is the final CPUC decision on California Water Service Group’s 2024 General Rate Case expected?
How large is California Water Service Group’s overall customer base mentioned in the update?
AI-generated analysis. How Rhea-AI works. Not financial advice.
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM
Current Report Pursuant to Section 13
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| Item 8.01. | Other Events |
On March 17, 2026, California Water Service Group (Group) issued a press release (a copy of which is attached hereto as Exhibit 99.1 and incorporated herein by reference) announcing the California Public Utilities Commission’s proposed decision on the 2024 General Rate Case of California Water Service, Group’s largest subsidiary.
| Item 9.01. | Financial Statements and Exhibits. |
(d) Exhibits.
We hereby file the following exhibit with this report:
| Exhibit No. | Description | |
| 99.1 | Press Release issued March 17, 2026 | |
| 104 | Cover Page Interactive Date File (embedded within the Inline XBRL document) |
SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
| CALIFORNIA WATER SERVICE GROUP | ||
| Date: March 18, 2026 | By: | /s/ James P. Lynch |
| Name: | James P. Lynch | |
| Title: | Senior Vice President, Chief Financial Officer and Treasurer | |
Exhibit 99.1
| DATE: March 17, 2026 CONTACT: Jim Lynch, (408) 367-8200 Shannon Dean, (408) 367-8243 |
 |
For Immediate Release
California Water Service Group Receives Proposed Decision
on 2024 California General Rate Case
SAN JOSE, Calif., March 17, 2026 (GLOBE NEWSWIRE) - On Friday, March 13, 2026, the California Public Utilities Commission issued a proposed decision (PD) on the 2024 General Rate Case of California Water Service (2024 California GRC), the largest subsidiary of California Water Service Group (Company or Group, NYSE:CWT).
The PD authorizes additional revenues of $92.3 million in 2026 (a rate increase of 11.1%); $50.8 million in 2027 (a rate increase of 5.5%); and $52.4 million in 2028 (a rate increase of 5.4%).
The final infrastructure investment budget for 2025 through 2027 was not included in the PD; however, the Company anticipates it will be provided as an attachment to the final decision.
Although the PD does not authorize the Company’s request to decouple sales from revenues to promote conservation and lower water rates for low-income, low-water-using customers, it does reauthorize a Monterey-Style Water Revenue Adjustment Mechanism and water production incremental cost balancing accounts.
It also establishes a sales reconciliation mechanism, which will allow the Company to adjust sales forecasts on an annual basis, and approves a rate design that is expected to better enable the Company to recover fixed costs regardless of water sales.
“We appreciate the timely issuance of the PD and look forward to making oral arguments, providing written comments, and having clarifying discussions with the Commission to achieve a closer alignment with what was requested in the application,” said Martin A. Kropelnicki, Chairman and Chief Executive Officer.
Written comments are due from the Company by April 2, 2026, and oral arguments have yet to be scheduled. The California Public Utilities Commission is expected to adopt a final decision at its scheduled meeting on April 30, 2026, or shortly thereafter.
About California Water Service Group
Group is the parent company of regulated utilities California Water Service, Hawaii Water Service, New Mexico Water Service, and Washington Water Service, as well as Texas Water Service (TWSC, Inc.), a utility holding company. Together, these companies provide regulated and non-regulated water and wastewater service to more than 2.1 million people in California, Hawaii, New Mexico, Washington and Texas. Group’s common stock trades on the New York Stock Exchange under the symbol “CWT.” Additional information is available online at www.calwatergroup.com.
This news release contains forward-looking statements within the meaning established by the Private Securities Litigation Reform Act of 1995 (“PSLRA”). The forward-looking statements are intended to qualify under provisions of the federal securities laws for “safe harbor” treatment established by the PSLRA. Forward-looking statements in this news release are based on currently available information, expectations, estimates, assumptions and projections, and our management’s beliefs, assumptions, judgments and expectations about us, the water utility industry and general economic conditions. These statements are not statements of historical fact. When used in our documents, statements that are not historical in nature, including words like will, would, expects, intends, plans, believes, may, could, estimates, assumes, anticipates, projects, progress, predicts, hopes, targets, forecasts, should, seeks or variations of these words or similar expressions are intended to identify forward-looking statements. Examples of forward-looking statements in this news release include, but are not limited to, statements describing Group’s beliefs, expectations, and plans related to the CPUC’s proposed and final decisions on the 2024 GRC. Forward-looking statements are not guarantees of future performance. They are based on numerous assumptions that we believe are reasonable, but they are open to a wide range of uncertainties and business risks. Consequently, actual results or outcomes may vary materially from what is contained in a forward-looking statement. Factors that may cause actual results or outcomes to be different than those expected or anticipated include but are not limited to the outcome and timeliness of the CPUC’s actions concerning rate relief and other matters with respect to the 2024 GRC and other risks described under the section entitled “Risk Factors” and elsewhere in our most recent Annual Report on Form 10-K and our other SEC filings. In light of these risks, uncertainties and assumptions, investors are cautioned not to place undue reliance on forward-looking statements, which speak only as of the date of this news release. We are not under any obligation, and we expressly disclaim any obligation, to update or alter any forward-looking statements, whether as a result of new information, future events or otherwise.
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