Contract-First Review of PURA-Approved Rate Settlements: Courts Must Interpret Settlement Language Before Deferring to PURA

1. Introduction

This administrative appeal arises from a recurring tension in utility regulation: how to reconcile a regulator’s broad ratemaking discretion with the binding force of a regulator-approved settlement agreement that sets rates and prescribes rate-adjustment procedures. The plaintiff electric distribution company, The Connecticut Light and Power Company (doing business as Eversource Energy), sought to recover approximately $17 million in storm-related capital spending through a “new capital tracker” embedded in a 2018 settlement agreement that resolved its 2017 general rate case. The defendant, the Public Utilities Regulatory Authority (PURA), rejected that immediate recovery in the 2021 RAM proceeding, directing that those capital costs instead be addressed in the plaintiff’s next general rate case (subject to prudence review).

The central issues on appeal were: (1) whether the Superior Court improperly deferred to PURA’s ratemaking discretion under General Statutes § 16-19e without first interpreting the settlement agreement; and (2) whether the settlement agreement unambiguously entitled the utility to recover catastrophic storm-related capital costs in 2018–2020 base rates via the tracker, subject only to later prudence review.

2. Summary of the Opinion

The Supreme Court agreed with the utility that the trial court used the wrong analytic sequence: the trial court should have construed the settlement agreement rather than deferring to PURA’s rate-setting discretion at the outset. However, the Supreme Court rejected the utility’s contention that the agreement clearly and unambiguously permitted immediate recovery of the storm-related capital costs through the tracker.

The Court held that the settlement agreement was facially ambiguous on the key question—how storm-related capital spending, particularly from catastrophic storms, was to be recovered (in base rates via the tracker versus later in a rate case or separate proceeding). It identified multiple ambiguities, including the meaning of “emergent equipment failures,” how unbudgeted or significantly over-budget capital spending would be treated, and whether the agreement’s references to “major storms” included “catastrophic storms” for purposes of embedded capital recovery.

Because the record materials the Court reviewed did not definitively resolve the ambiguities, it reversed the judgment and remanded for further proceedings—allowing the trial court to resolve the ambiguities in light of the full administrative record and/or to remand to PURA to consider all evidence relevant to resolving them. The Court also flagged (but did not decide) a potentially significant administrative-law question: what deference, if any, is owed to PURA factfinding about the meaning of an ambiguous settlement agreement when PURA’s prosecutorial division was itself a party to that agreement.

3. Analysis

3.1 Precedents Cited

The Court’s approach is anchored in two clusters of precedent: (a) Connecticut contract interpretation doctrine, and (b) Connecticut administrative-law principles governing judicial review of agency decisions, particularly in ratemaking. It also draws from federal administrative-law discussions on deference where agencies construe contracts.

A. Connecticut ratemaking discretion and judicial deference

• Greenwich v. Dept. of Public Utility Control (219 Conn. 121 (1991)) was cited for the proposition that agencies have “significant latitude” in rate policy and rate-setting choices. The Supreme Court did not retreat from that principle, but it clarified that such latitude does not permit a court to bypass contract interpretation when a binding settlement agreement is at issue.
• Connecticut Light & Power Co. v. Dept. of Public Utility Control (219 Conn. 51 (1991)) was invoked by PURA to argue that interpretation of the parties’ intent is a fact question reviewed only for substantial evidence. The Court narrowed that case’s relevance, explaining it was “not a contract case” seeking enforcement of settlement terms, and thus does not displace the rule that clear contractual language is construed as a matter of law.
• Southeastern Connecticut Regional Resources Recovery Authority v. Dept. of Public Utility Control (244 Conn. 280 (1998)) provided the key bridge: ratemaking discretion is “constrained by binding settlement agreements” and an agency may not set rates contrary to a clear and unambiguous controlling agreement. That case supplied the doctrinal foundation for the Court’s “contract-first” sequencing requirement.

B. Connecticut contract interpretation and ambiguity doctrine

• Clinton v. Aspinwall (352 Conn. 597 (2025)) framed the baseline: interpretation is generally a question of fact (intent), but “definitive contract language” presents a question of law subject to plenary review; and courts must first decide whether language is ambiguous.
• Simpson v. Simpson (352 Conn. 81 (2025)) supplied the Court’s modern articulation of ambiguity: a contract is ambiguous if susceptible to more than one reasonable interpretation, and extrinsic evidence is admissible to explain ambiguity.
• Isham v. Isham (292 Conn. 170 (2009)) emphasized that ambiguity is assessed “in light of the context of the situation” of the parties, including possible technical or trade meanings.
• Tallmadge Bros., Inc. v. Iroquois Gas Transmission System, L.P. (252 Conn. 479 (2000)), Spencer v. Higgins (22 Conn. 521 (1853)), and Southbury Land Trust, Inc. v. Andricovich (59 Conn. App. 785 (2000)) reinforced the role of trade usage and specialized meanings—particularly relevant here because the disputed terms (“emergent equipment failures,” “core capital,” “major storms”) arise in a highly technical regulated-utility setting.
• Gold v. Rowland (325 Conn. 146 (2017)) and Schubert v. Ivey (158 Conn. 583 (1969)) supported the interpretive move of reading together documents that are part of the same transaction. The Court used this principle to justify considering the settlement agreement alongside contemporaneous materials and communications used in PURA’s approval process (because the agreement became binding only upon PURA’s approval).

C. Deference to agency factfinding and the “non-neutral arbiter” concern

• Tomlinson v. Board of Education (226 Conn. 704 (1993)) was cited for the general notion of “due deference” to an agency’s factual determinations when interpreting an ambiguous agreement. The Supreme Court treated this as a starting point, not an endpoint, because the case raises a structural concern: PURA’s prosecutorial division (PRO) was a party to the settlement agreement.
• The opinion canvassed federal authorities addressing deference when an agency interprets a contract to which it is a party: Southern California Edison Co. v. United States, Muratore v. Office of Personnel Management, Cemex, Inc. v. Dept. of the Interior, and Bottoms Farm Partnership v. Dept. of Agriculture, as well as a state analogue, Guilford Transportation Industries v. Public Utilities Commission. Rather than adopting a Connecticut rule, the Court flagged competing considerations (expertise, neutrality, governmental interest, and institutional power), then left the question for potential resolution on remand.
• Finally, the Court noted the federal deference debate’s linkage to Chevron, U.S.A., Inc. v. Natural Resources Defense Council, Inc. and the U.S. Supreme Court’s subsequent repudiation of that doctrine in Loper Bright Enterprises v. Raimondo, suggesting that Connecticut should be cautious about borrowing Chevron-adjacent deference frameworks in this contract-setting context.

3.2 Legal Reasoning

The Court’s reasoning proceeds in three conceptual steps: (1) identify the correct standard and sequencing for judicial review; (2) apply contract doctrine to determine ambiguity; and (3) craft an administratively workable remedy.

A. The “contract-first” sequencing rule

The Superior Court treated the dispute primarily as a ratemaking-policy call, deferring to PURA’s discretion under § 16-19e and asking only whether substantial evidence supported PURA. The Supreme Court found that approach incomplete because it allowed agency discretion to eclipse the binding character of a regulator-approved settlement. Under Southeastern Connecticut Regional Resources Recovery Authority v. Dept. of Public Utility Control, PURA cannot set rates contrary to clear settlement language. Therefore, before deference can operate, the reviewing court must interpret the settlement agreement and determine whether the language is clear or ambiguous in context.

B. Why the settlement agreement was ambiguous

The Court declined to accept the utility’s “plain language” theory that storm-related capital costs necessarily fell within “emergent equipment failures” (a row heading in a chart referenced by the settlement). The Court identified at least three ambiguity vectors:

• Meaning of “emergent equipment failures”: The term “emergent” plausibly connotes sudden/unexpected failures requiring prompt action, but also plausibly connotes gradual “coming into being.” Because storms were not expressly referenced in the governing settlement provisions or the chart, and because contemporaneous record materials showed inconsistent usage, the term did not unambiguously include catastrophic storm damage.
• Treatment of large overruns and unbudgeted capital: The agreement simultaneously (i) “approved” proposed capital expenditures “as filed,” and (ii) created a tracker mechanism permitting recovery of spending in excess of a baseline. These provisions were “susceptible to two plausible interpretations”: PURA’s view (preapproval limited to the filed forecasts; excess requires further approval consistent with historical practice) and the utility’s view (tracker designed to allow flexible recovery of unanticipated capital, subject to prudence review). Hearing testimony and a joint brief confirmed “further review” would occur, but did not pin down what legal consequences flowed from large variances.
• Catastrophic vs. noncatastrophic storms: The agreement drew explicit distinctions in some storm-cost contexts, but not clearly for capital recovery. Supporting materials used “major storms” in ways that could either include or exclude “catastrophic” storms depending on the document and classification scheme. The utility also made statements in other proceedings suggesting storm-related capital costs would be recovered in a future rate case—statements arguably inconsistent with its present claim of immediate recovery through base rates.

C. Remedy: remand rather than judicial construction on an incomplete decisional basis

Even though the Supreme Court examined significant parts of the record “for purposes of judicial economy,” it concluded that the ambiguities were not definitively resolved. Rather than choosing a meaning as a matter of law, the Court remanded so the trial court could resolve the ambiguities using the complete administrative record and/or remand to PURA to consider all relevant evidence.

Importantly, the Court also preserved a major unresolved question for remand: whether (and how) to defer to PURA’s factual determinations about the parties’ intent when PURA’s own prosecutorial division was a party to the settlement agreement. That issue may shape how much interpretive authority PURA effectively retains in future settlement disputes.

3.3 Impact

The decision’s practical importance is less about storm costs and more about institutional roles in Connecticut utility regulation. It establishes a clear procedural and analytic discipline for courts reviewing PURA decisions that turn on settlement terms.

• For judicial review: Trial courts must perform a contract-interpretation analysis first—asking whether language is clear or ambiguous in context— before invoking generalized ratemaking deference. This should reduce decisions that effectively treat settlement terms as optional policy inputs.
• For settlement drafting and approval practice: The case exposes how incorporation-by-reference (e.g., a chart heading in prefiled testimony) can become the fulcrum of multi-million-dollar disputes. Parties will have incentives to draft settlement language that expressly addresses foreseeable high-cost categories (such as catastrophic storm capital) rather than relying on classification headings or indirect cross-references.
• For PURA proceedings (RAM vs. rate case vs. separate contested case): The opinion underscores that procedural vehicles matter. A tracker and annual reconciliation proceeding may not be a clear substitute for a full rate case when the agreement’s scope is uncertain. Future disputes may turn on whether “further review” means prudence review within the tracker, a separate contested case, or deferral to the next general rate case.
• For deference doctrine in Connecticut administrative law: By highlighting the PRO’s dual role (party to settlement; within PURA’s ecosystem), the Court opened the door to a refined Connecticut approach to deference where agency neutrality is structurally complicated. The remand invites litigants to develop a record and legal framework addressing when an agency’s interpretive factfinding deserves weight.
• Legislative and policy backdrop: The Court noted 2023 statutory changes (P.A. 23-102) that altered how settlements are encouraged and constrained, suggesting that the legislature’s current stance is more guarded about settlement lock-in and unintended consequences of novel mechanisms like trackers. That context may influence how future settlements are structured and scrutinized.

4. Complex Concepts Simplified

• Base rates: The standing rates customers pay, approved by PURA, typically set in a general rate case or settlement.
• General rate case: A comprehensive, quasi-judicial review (required at least every four years under § 16-19a) examining the utility’s financial and operating records to set just and reasonable rates.
• RAM proceeding (Rate Adjustment Mechanism): An annual proceeding reconciling authorized adders/subtractions and implementing specific adjustment mechanisms contemplated by prior decisions/settlements.
• Capital costs vs. operation and maintenance costs: “Capital” spending generally refers to investments in long-lived assets (poles, wires, substations) that enter “rate base” and are recovered over time; “operation and maintenance” costs are typically expensed and recovered more immediately.
• Tracker (here, the “new capital tracker” / “ESI tracker”): A mechanism allowing certain costs to be flowed into rates outside a full rate case, usually with later reconciliation and some form of review (often “prudence” review).
• Prudence review: Regulatory assessment of whether spending was reasonably incurred—i.e., whether the utility acted prudently given information available at the time, not with hindsight perfection.
• Ambiguity and extrinsic evidence: If contract language reasonably supports more than one meaning, it is “ambiguous,” and the interpreter may consider evidence outside the contract (course of dealing, hearing testimony, filings, contemporaneous explanations) to determine intended meaning.

5. Conclusion

The Connecticut Light and Power Company v. Public Utilities Regulatory Authority establishes a consequential interpretive discipline in Connecticut utility regulation: when settlement agreements set rates and ratemaking procedures, courts reviewing PURA decisions must first interpret the settlement agreement and determine whether it is clear or ambiguous before deferring to PURA’s ratemaking discretion. Applying that framework, the Supreme Court found the 2018 settlement agreement ambiguous regarding recovery of catastrophic storm-related capital costs through the tracker mechanism, and it remanded for further proceedings to resolve those ambiguities on a complete record.

The opinion’s enduring significance is structural: it reinforces that regulator-approved settlements are binding constraints, not merely policy signals, while candidly acknowledging unresolved questions about deference when the regulator’s prosecutorial arm participated in the settlement. That unresolved issue—left for remand—may become the next major doctrinal battleground in Connecticut administrative review of utility settlements.