INDEPENDENT VERDICT
ECP Next Wave Continuation Fund is a newly formed 2026 private-equity continuation structure whose SEC filings arrived before the fundraising was publicly completed. The main vehicle, ECP Next Wave Continuation Fund, LP, filed with $0 sold, zero investors and "first sale yet to occur," while two companion vehicles—Fund B and Cayman-domiciled Fund C—were formed at the same time. All three use Energy Capital Partners' 40 Beechwood Road, Summit, New Jersey headquarters and the same senior ECP governance chain. The most important evidence, however, comes from outside Form D: Federal Trade Commission Hart-Scott-Rodino records dated September 15, 2026 identify ECP Next Wave Continuation Fund as the acquiring party, Energy Capital Partners IV-D, LP as the selling party and Next Wave Energy Partners, LP as the acquired entity. That turns an otherwise opaque pre-first-sale fund filing into a clearly identifiable single-asset continuation transaction. Public secondary-market reporting places the contemplated vehicle at roughly $900 million, but that figure is not disclosed as the Form D amount sold and should therefore remain a reported transaction estimate rather than an SEC-confirmed raise.
THE SEC FILING CAME BEFORE THE CAPITAL CLOSE
ECP Next Wave Continuation Fund, LP, CIK 0002152191, was organized in Delaware in 2026 and filed its initial Form D in mid-September. It is classified as a private equity fund, relies on Rule 506(b) and Section 3(c)(7), offers equity and pooled investment fund interests and reports an indefinite offering intended to last no more than one year. The minimum-investment field is $0, no commissions or finder fees are charged directly to the issuer, and aggregate NAV is declined. Most importantly, the filing reports $0 sold and zero investors because first sale had not yet occurred. Moelis & Company LLC, CRD 145115, is named as the sales-compensation recipient, but the filing explicitly states that Moelis will receive a fee that is not paid by the issuer.
The simultaneous parallel-fund filings make the structure more complex. ECP Next Wave Continuation Fund B, LP is another Delaware vehicle, while ECP Next Wave Continuation Fund C, LP is organized in the Cayman Islands. Each shares the Summit headquarters, ECP personnel and 2026 formation date. Form D does not explain which investor classes belong in the main, B or C vehicles, and it does not publish the allocation of the contemplated capital among them. Investors should therefore avoid adding any future amounts reported across the three entities unless the filings expressly state that the numbers are distinct rather than parallel.
FTC RECORDS IDENTIFY THE ASSET THAT FORM D DOES NOT
The HSR filing is the most valuable independent evidence in this case. On September 15, 2026, the FTC published an early-termination notice naming ECP Next Wave Continuation Fund, LP as acquiring party, Energy Capital Partners IV-D, LP as acquired party and Next Wave Energy Partners, LP as the acquired entity. A parallel notice names ECP Next Wave Parallel Fund B, LP in an equivalent transaction. This directly shows that the continuation structure is being created to transfer Next Wave from an older ECP Fund IV ownership structure into a new continuation vehicle.
That matters because continuation funds are not ordinary blind-pool fundraises. Existing ECP investors may be offered liquidity while new and rolling investors finance continued ownership of the same portfolio company. The sponsor is therefore positioned on both sides of the transfer through affiliated funds, making transaction valuation, fairness procedures, rollover elections and expense allocation central diligence questions. Form D confirms the new investor vehicle; the FTC record confirms the asset transfer.
NEXT WAVE HAS BEEN AN ECP-BACKED COMPANY SINCE 2015
Next Wave Energy Partners provides unusually strong company-level history. The company announced in April 2015 that ECP and management would provide up to $500 million of equity capital to develop, acquire and operate midstream, downstream petrochemical and fuels infrastructure. Next Wave focuses on natural gas liquids, petrochemicals and gasoline-blending value chains and is led by a management team with deep industry experience. ECP executive Peter Labbat has served on Next Wave's board since inception, and other ECP professionals including Matt Delaney and Ben Condon are also represented in the company's governance history.
ECP Fund IV later became the relevant ownership pool. Fund IV closed in January 2020 with approximately $3.3 billion of capital commitments, and contemporaneous public materials identified Next Wave as one of the fund's initial investments. This is important because the 2026 continuation fund is not buying an unfamiliar third-party company. It is extending ECP ownership of an asset that the sponsor has backed for more than a decade and that has already moved through development, construction and operating phases.
PROJECT TRAVELER CHANGED THE ASSET FROM DEVELOPMENT RISK TO OPERATING INFRASTRUCTURE
Next Wave's principal asset is Project Traveler, an ethylene-to-alkylate production facility in Pasadena, Texas near the Houston Ship Channel. In 2019, Next Wave announced a positive final investment decision for the project with planned nameplate capacity of approximately 28,000 barrels per day of alkylate. The company said a majority of capacity was supported by long-term customer contracts. The original announcement anticipated initial production in 2022.
Commercial operations were ultimately announced in March 2024. That timing is highly relevant to the continuation transaction. Earlier ECP investors funded a business carrying construction, technology execution and commissioning risk; continuation-fund investors would be buying into a company with an operating plant and several years of development history behind it. The risk profile is therefore different from the original 2015 investment, but it is not risk-free: operating reliability, feedstock economics, customer contracts, refinery demand, commodity spreads and future capital needs now become more important than construction completion.
THE REPORTED $900M TRANSACTION SHOULD BE KEPT SEPARATE FROM FORM D
Recent secondary-market reporting says ECP was exploring a continuation vehicle of approximately $900 million for Next Wave and that anchor investors had reportedly been identified. That figure is useful market context but is not disclosed in the SEC Form D, which still shows an indefinite offering and $0 sold. FilingDossier therefore does not present $900 million as closed capital, NAV or SEC-confirmed fund size.
The distinction is especially important because continuation transactions can contain several different amounts: purchase price for the transferred asset, new-money commitments, rollover value from existing LPs, GP reinvestment, transaction expenses and parallel-fund subscriptions. A reported "$900 million vehicle" can therefore mean something materially different from eventual cash proceeds to the selling fund.
ECP'S CONTINUATION-FUND HISTORY MAKES THIS TRANSACTION MORE SIGNIFICANT
Next Wave is not ECP's first continuation structure. Public ECP and Bridgepoint materials show earlier continuation vehicles around Terra-Gen and Calpine. Bridgepoint's historical fund presentation reported approximately $1.165 billion for the Terra-Gen continuation fund and approximately $1.647 billion for the Calpine continuation fund. Public secondary-market reporting describes Next Wave as ECP's third major continuation transaction.
That history matters because both prior assets eventually reached strategic exits. It also demonstrates that continuation funds are an established part of ECP's portfolio-management toolkit rather than an experimental 2026 structure. Still, past continuation outcomes do not determine the economics of Next Wave. Project Traveler is a petrochemical and fuels infrastructure asset with a materially different operating profile from renewable power or large-scale generation.
WEBSITE / ENTITY PENETRATION
The sponsor relationship is unusually strong. The Form D issuer uses ECP's Summit, New Jersey headquarters and lists Douglas Kimmelman, Murray Karp, Peter Labbat, Tyler Reeder, Andrew Gilbert, Emily Zovko, Jennifer Gray, Benjamin Condon and Matthew Delaney as related persons or promoters. Next Wave's own website independently identifies ECP as its long-term financial sponsor and lists Peter Labbat, Matt Delaney and Ben Condon in its board structure.
ECP itself is now part of Bridgepoint Group and in August 2026 announced the final close of ECP VI at $8.1 billion, above its original $5 billion target. ECP states that it has secured more than $41 billion of capital commitments since inception. Those figures demonstrate sponsor scale but have no direct relationship to the amount of capital ultimately raised by the Next Wave continuation fund.
FINAL ASSESSMENT
ECP Next Wave Continuation Fund is one of the strongest transaction-specific cases in this research batch because Form D, FTC merger records, sponsor materials and portfolio-company disclosures all connect to the same underlying asset. The SEC filing confirms a newly formed continuation vehicle, but as of filing it had no reported investors or sales. FTC records independently identify Next Wave Energy Partners as the asset being transferred out of Energy Capital Partners IV-D, while Next Wave's own history establishes ECP backing since 2015 and the development of Project Traveler into an operating 28,000-barrel-per-day alkylate facility.
The key diligence questions therefore concern transaction economics rather than issuer identity: how Next Wave was valued, which Fund IV investors elected liquidity versus rollover, who the anchor buyers are, whether an independent fairness process was used, what Moelis is being paid and by whom, and what operating assumptions support the reported roughly $900 million transaction size. The continuation fund structure allows ECP to hold Next Wave beyond the life cycle of the older Fund IV investment, but SEC filing status alone does not establish whether the transfer price is attractive for either selling or incoming investors.
SEC SNAPSHOT
Brand: Energy Capital Partners / ECP
Reviewed Vehicle: ECP Next Wave Continuation Fund, LP
CIK: 0002152191
Form D Filing: September 2026
Jurisdiction: Delaware
Year Organized: 2026
Entity Type: Limited Partnership
Principal Business Address: 40 Beechwood Road Summit, New Jersey 07901
Phone: 973-671-6100
Industry: Pooled Investment Fund
Fund Classification: Private Equity Fund
Federal Exemption: Rule 506(b)
Investment Company Act Exclusion: Section 3(c)(7)
Filing Type: New Notice
First Sale: Yet to occur
Offering Amount: Indefinite
Amount Sold: $0
Investors: 0
Minimum Investment Reported: $0
Sales Commissions: $0
Finders' Fees: $0
Aggregate NAV: Declined to disclose
PLACEMENT AGENT
Firm: Moelis & Company LLC
CRD: 145115
Address: 399 Park Avenue 4th Floor New York, New York 10022
Solicitation: All U.S. states
Form D Fee Disclosure: Moelis will be paid a fee, but the fee will not be paid from the issuer.
Research Significance: The placement relationship is explicitly disclosed even though the issuer reports $0 commissions and $0 finder fees.
PARALLEL VEHICLES
Main Vehicle: ECP Next Wave Continuation Fund, LP
CIK: 0002152191
Jurisdiction: Delaware
Parallel Vehicle: ECP Next Wave Continuation Fund B, LP
CIK: 0002152190
Jurisdiction: Delaware
Parallel Vehicle: ECP Next Wave Continuation Fund C, LP
CIK: 0002152189
Jurisdiction: Cayman Islands
Shared Address: 40 Beechwood Road Summit, New Jersey 07901
Shared Formation Year: 2026
Shared Fund Classification: Private Equity Fund
Shared Federal Exemption: Rule 506(b)
Shared Sponsor Governance: Energy Capital Partners personnel
Important Qualification: The Form D filings do not publicly explain the investor-class, tax or regulatory rationale for the three-vehicle structure.
ECP RELATED PERSONS
Douglas W. Kimmelman
Murray Karp
Peter Labbat
Tyler Reeder
Andrew Gilbert
Emily Zovko
Jennifer Gray
Benjamin Condon
Matthew Delaney
Form D Signer: Jennifer Gray
Signer Title: Partner, General Counsel and CCO of GP of GP of Issuer
FTC TRANSACTION CROSS-CHECK
FTC Early Termination Date: September 15, 2026
Acquiring Party: ECP Next Wave Continuation Fund, LP
Acquired Party: Energy Capital Partners IV-D, LP
Acquired Entity: Next Wave Energy Partners, LP
Separate Parallel FTC Filing: ECP Next Wave Parallel Fund B, LP
Acquired Party: Energy Capital Partners IV-D, LP
Acquired Entity: Next Wave Energy Partners, LP
Research Significance: Directly identifies the portfolio company being transferred into the continuation structure.
NEXT WAVE HISTORY
Company: Next Wave Energy Partners, LP
Headquarters: Houston, Texas
Initial ECP Investment Announcement: April 14, 2015
Initial Equity Commitment: Up to $500 million from ECP and management
Primary Historical Focus: Midstream infrastructure Downstream petrochemicals Fuels Natural gas liquids Logistics Processing
Long-Term ECP Relationship: Confirmed by Next Wave
PROJECT TRAVELER
Asset: Project Traveler
Location: Pasadena, Texas
Location Context: Houston Ship Channel
Final Investment Decision Announced: November 20, 2019
Product: Alkylate
Feedstock / Process Concept: Ethylene-to-alkylate conversion
Nameplate Capacity: Approximately 28,000 barrels per day
Site: Approximately 53 acres
Customer Contracting: Majority of nameplate capacity described as supported by long-term customer contracts at project announcement
Original Expected Production: Mid-2022
Commercial Operations Announced: March 20, 2024
Research Significance: The continuation transaction occurs after the portfolio company moved from development and construction into commercial operation.
FUND IV RELATIONSHIP
Fund: Energy Capital Partners IV
Launch: 2017
Final Close: January 2020
Capital Commitments: Approximately $3.3 billion
Additional Co-Investment Pool: Approximately $3.5 billion, largely associated with Calpine
Next Wave: Identified among Fund IV's early portfolio investments
Current Transfer Evidence: FTC identifies Energy Capital Partners IV-D, LP as acquired / selling party in the Next Wave transaction.
REPORTED CONTINUATION TRANSACTION
Reported Transaction Size: Approximately $900 million
Source Type: Secondary-market / M&A reporting
SEC-Confirmed Amount Sold: $0 as of initial Form D
Anchor Investors: Reported as identified, but names not publicly confirmed in reviewed SEC materials
FilingDossier Treatment: Reported transaction estimate only; not presented as closed fundraising or current NAV.
PRIOR ECP CONTINUATION FUNDS
Terra-Gen Continuation Fund
Vintage: 2021
Reported / Historical Fund Size: Approximately $1.165 billion
Asset: Terra-Gen
Calpine Continuation Fund
Vintage: 2022
Reported / Historical Fund Size: Approximately $1.647 billion
Asset: Calpine
Next Wave Continuation Fund
Vintage: 2026
Reported Market Estimate: Approximately $900 million
Asset: Next Wave Energy Partners
Important Qualification: Fund sizes and transaction structures differ and should not be used as direct performance comparisons.
ECP PLATFORM CONTEXT
Founded: 2005
Headquarters: Summit, New Jersey
Current Parent: Bridgepoint Group
ECP VI Final Close: August 2026
ECP VI Commitments: $8.1 billion
Original ECP VI Target: $5 billion
Cumulative Capital Commitments Raised by ECP Since Inception: More than $41 billion
Current Investment Focus: Power generation Renewables and storage Sustainable infrastructure Energy transition infrastructure
Important Distinction: These are sponsor-level figures and do not represent Next Wave Continuation Fund assets.
WEBSITE / ENTITY PENETRATION
ECP Official Domain: ecpgp.com
Next Wave Official Domain: nextwaveenergy.com
ECP-to-Next-Wave Relationship: Confirmed
2015 Investment: Confirmed
ECP Board Representation: Confirmed
Peter Labbat Relationship: Confirmed
Matt Delaney Relationship: Confirmed
Ben Condon Relationship: Confirmed
Summit Address Match: Confirmed through Form D and ECP
Project Traveler: Confirmed by Next Wave
Commercial Operations: Confirmed by Next Wave
Moelis Placement Role: Confirmed by Form D
Underlying Asset Transfer: Confirmed through FTC HSR record
FIVE FACTS UNIQUE TO THIS CASE
- The new continuation fund filed Form D before any first sale and reported $0 sold and zero investors.
- FTC HSR records independently identify Next Wave Energy Partners as the asset being transferred from Energy Capital Partners IV-D into the new continuation structure.
- Three parallel continuation vehicles were created, including a Cayman Fund C, but the public filings do not explain their investor segmentation.
- Next Wave has been backed by ECP since 2015 and received an initial equity commitment of up to $500 million from ECP and management.
- Project Traveler moved from a 2019 construction-stage project to commercial operations in March 2024, meaning incoming continuation investors are underwriting an operating asset rather than the original greenfield development case.
CORE INVESTOR QUESTIONS
- What is the final transaction valuation for Next Wave Energy Partners
- Is the reported approximately $900 million figure equity value, continuation-fund size or total transaction value
- Which investors are anchoring the continuation fund
- How much capital is rolling from existing Fund IV investors
- How much new cash will be raised
- What percentage of Next Wave will the continuation fund acquire
- Will Energy Capital Partners IV retain any ownership
- What valuation process was used for the affiliated fund-to-fund transfer
- Was an independent fairness opinion obtained
- What role does Moelis play beyond placement
- Who pays Moelis's fee if it is not paid by the issuer
- How are transaction expenses divided between the selling fund and continuation fund
- What are the differences among the main fund, Fund B and Cayman Fund C
- What management fee and carried interest apply to incoming continuation investors
- What operating assumptions support Project Traveler's valuation
- How sensitive are returns to ethylene, alkylate and gasoline-blending economics
- What portion of Project Traveler capacity is currently under long-term contracts
- What additional capital expenditure is expected during the continuation holding period
ENTITY-SPECIFIC RISKS
The fund had not completed a first reported sale when the Form D was filed. The reported approximately $900 million transaction size is not an SEC-confirmed amount sold. The sponsor manages both the selling and acquiring fund structures, creating inherent affiliated-transaction conflicts. Existing Fund IV investors may face a decision between liquidity and continued exposure to the same asset. Continuation investors are buying into a mature sponsor-owned asset rather than a new third-party transaction. Project Traveler's operating economics depend on petrochemical and fuels-market conditions. Construction risk has declined following commercial start-up, but operating, maintenance and commodity-spread risks remain. The project began commercial operations later than initially expected. Three parallel fund vehicles increase legal, tax and allocation complexity. Moelis is being compensated even though the issuer reports no direct sales commissions. ECP's $8.1 billion Fund VI and $41 billion-plus historical capital commitments should not be confused with Next Wave continuation-fund size.
PRIMARY EVIDENCE REVIEWED
U.S. Securities and Exchange Commission Form D filed in September 2026 for ECP Next Wave Continuation Fund, LP. U.S. Securities and Exchange Commission Form D filed for ECP Next Wave Continuation Fund B, LP. U.S. Securities and Exchange Commission Form D filed for ECP Next Wave Continuation Fund C, LP. Federal Trade Commission September 15, 2026 HSR early-termination record naming Next Wave Energy Partners as the acquired entity. Next Wave Energy Partners April 14, 2015 announcement of ECP's initial investment. Next Wave Energy Partners November 20, 2019 Project Traveler final investment decision. Next Wave Energy Partners March 20, 2024 commercial-operations announcement. Next Wave Energy Partners official board and sponsor materials. Public Energy Capital Partners Fund IV materials. Energy Capital Partners August 2026 ECP VI final-close announcement. Public secondary-market reporting regarding the contemplated Next Wave continuation transaction.
IMPORTANT FORM D NOTICE
Form D is a notice of an exempt securities offering and does not represent SEC approval, endorsement or verification of ECP, ECP Next Wave Continuation Fund, Next Wave Energy Partners, Project Traveler or the transaction valuation. As of the initial filing, the continuation fund reported $0 sold and no first sale. The approximately $900 million transaction figure comes from external market reporting rather than the Form D itself. FilingDossier therefore separates SEC-confirmed offering status, FTC-confirmed asset-transfer evidence and externally reported transaction estimates.