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September 18, 2026

The Secondary Brief / Friday, 18 September 2026: ECP files its third continuation fund, for Next Wave

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The Secondary Brief Friday, 18 September 2026
ECP files its third continuation fund, for Next Wave
7 min read · 2 figures · In this issue
ECP moves Next Wave into its third continuation fundVirginia wrote two continuation-vehicle checks in AugustBlackstone files its ninth real estate secondaries fund

Energy Capital Partners filed on Thursday for a continuation fund for Next Wave, the alkylate producer in its fourth fund, with Moelis placing it and about $900 million in view. Virginia's pension, meanwhile, committed $75 million to NorthSands' first fund in August and $43.2 million directly into Lime Rock's vehicle. Blackstone filed its ninth real estate secondaries fund the same day as ECP. The buyers of continuation vehicles now include a state pension writing the check itself.

The tape

  • Energy Capital Partners filed three Form D notices on Thursday for a continuation fund for Next Wave Energy Partners, with Moelis as placement agent and nothing raised yet. Mergermarket reported on Tuesday that anchors had signed up for a vehicle of about $900 million.
  • The Virginia Retirement System committed $75 million to NorthSands Capital I and $43.2 million to Lime Rock Resources' continuation vehicle in August, according to Thursday's board packet.
  • Blue Earth Capital's impact secondaries fund has raised $60 million from seven US investors since July, according to a Form D filed on Wednesday. The firm said on 30 July that the strategy had passed $200 million.
  • Eugene Song, formerly of W Capital Partners, joined Union Square Advisors on 15 September to run secondaries and GP solutions, a move not carried here until today.
  • KKR has overtaken Partners Group as Europe's largest manager of evergreen private-markets funds, at €13.6 billion against €13.4 billion in March, Private Equity Wire reported on Friday. Partners Group is limiting redemptions on its $14.5 billion flagship.
  • Blackstone's Strategic Partners filed on Thursday to raise Strategic Partners Real Estate IX, with Korea Investment & Securities as placement agent, nothing raised yet and no press coverage.
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ECP moves Next Wave into its third continuation fund

Energy Capital Partners is taking another asset out of its fourth fund through a continuation fund, and this time the paperwork came before the announcement. On Thursday three vehicles named ECP Next Wave Continuation Fund filed Form D notices from ECP's Summit, New Jersey address. Doug Kimmelman, Tyler Reeder and Peter Labbat are among the officers, and Moelis is the placement agent. Nothing has been raised yet. Two days earlier Mergermarket reported that ECP was exploring a vehicle of about $900 million for Next Wave, with anchor investors already signed up. No secondaries outlet has covered it.

Next Wave is a Houston company that ECP backed with up to $500 million in April 2015 to build midstream and petrochemical assets. Its main asset is Project Traveler, an ethylene-to-alkylate plant in Pasadena, Texas. Next Wave announced it in November 2019 with a capacity of 28,000 barrels a day. The plant began commercial operations in March 2024, two years after the date the company first gave. ECP listed Next Wave among the first four investments of Fund IV, which closed in January 2020 on $3.3 billion.

ECP's continuation funds: Terra-Gen $1.2 billion in April 2021, Calpine $1.6 billion in June 2022, Next Wave about $0.9 billion reported in September 2026
Source: ECP press releases of 1 April 2021 and 23 June 2022; Mergermarket, 15 September 2026; SEC Form D, 17 September 2026.
AssetNext Wave Energy Partners (Project Traveler, a 28,000 b/d alkylate plant in Pasadena, Texas, operating since March 2024)
SponsorEnergy Capital Partners, out of Fund IV ($3.3bn, closed January 2020)
Lead buyern/a (anchors signed but not named)
Sizeabout $900m, per Mergermarket
AdvisorMoelis
Pricen/a
Rollovern/a
StructureSingle-asset CV

The vehicle is ECP's third, and the first two were both sold whole. The Terra-Gen fund raised $1.2 billion in April 2021 with Blackstone Strategic Partners as lead, and Masdar bought the wind developer in 2024, according to Mergermarket. The Calpine fund then raised $1.6 billion in June 2022 with Pantheon and Phoenix Insurance as anchors. Constellation completed its $34.1 billion purchase of the power producer in January 2026. So the anchors on Next Wave are backing a sponsor whose two earlier vehicles reached a strategic sale within four years. The asset is different this time, because one plant that started up in 2024 has two years of operating history. ECP is also not short of money, since it closed its sixth flagship on $8.1 billion in August, above a $5 billion target.

Virginia wrote two continuation-vehicle checks in August

Virginia's pension bought into continuation vehicles twice in August, once through a manager and once directly. The packet for Thursday's board meeting lists a $75 million commitment to NorthSands Capital I on 4 August, with a five-year funding period. The packet calls it "a fund focused on single-asset continuation vehicles targeting well-known sectors including industrials and industrial services companies." It also lists $43.2 million to "Lime Rock Resources Fund III Continuation Vehicle" on 28 August, funded immediately. Alternatives Watch reported both on Friday. The $135 billion fund holds private equity at 14.3% against a policy weight of 15%, so it has room to buy.

Virginia Retirement System's new commitments of June to September 2026, including $43.2 million to Lime Rock's Fund III continuation vehicle on 28 August and $75 million to NorthSands Capital I on 4 August
Source: Virginia Retirement System, Board of Trustees meeting materials, 17 September 2026, p.41.

NorthSands is the firm that wrote nine-tenths of Peterson's Kelso vehicle five weeks after Virginia's commitment. Bruce McEvoy, a former Blackstone senior managing director, founded it in late 2023, according to its SupplyOne release. It has done three deals in public. It led Wellspring's single-asset vehicle for SupplyOne in 2024, then put $100 million into the $199 million Impel vehicle for Pike Street in March 2025. This month it wrote more than $450 million as sole lead of the $510 million Kelso vehicle, reported here on 10 September. Virginia's $75 million says what NorthSands is raising, because a fund with a five-year funding period is built to do the same trade again.

Virginia went into Lime Rock's vehicle itself, which is the rarer trade. Lime Rock Resources closed the $340 million vehicle for its 2013 fund's Bakken assets on 31 August, with Vintage Strategies at Goldman Sachs as lead investor. Virginia's date is three days earlier, so the pension is among the "new institutional investors" the release welcomes. Its $43.2 million is 12.7% of the total. Secondaries Investor reported from IPEM on Tuesday that institutions are warming to continuation vehicles on the buyside. Private Funds CFO added on Thursday that endowments using outsourced investment offices see GP-led secondaries as a way to deploy faster. Virginia's packet shows what that looks like in a pension's books: two lines, $118.2 million, one funded over five years and the other on the day.

Blackstone files its ninth real estate secondaries fund

Blackstone's Strategic Partners has started raising its ninth real estate secondaries fund, and the first filing names a Korean brokerage. Strategic Partners Real Estate IX and a feeder filed Form D notices on Thursday from 345 Park Avenue, with Verdun Perry and Mark Burton among the officers. Nothing has been raised yet, and no outlet has reported the launch. The only placement agent named is Korea Investment & Securities, so Korean institutions are among the first investors being approached. Blackstone may also have named it for one feeder while marketing the rest itself, and nothing published says which. Either way the ninth fund starts from a higher base than the eighth did, because the predecessor closed in November 2023 on $2.6 billion. The seventh had closed on $1.9 billion in July 2020, when Burton said the team held "interests in over 4,500 assets held by over 420 underlying real estate funds."

On the radar

  • Friday 18 September, Washington. Hearing requests on ARK's application for exchange-listed and tokenized classes of its venture interval fund close at 5:30pm Eastern today. Without a hearing the order issues.
  • Tuesday 22 September, London. Informa's Global Secondaries Summit has a session on single and multi-asset GP-leds. ECP's Next Wave is the newest single-asset vehicle in market for it to discuss.
  • Wednesday 23 September, West Sacramento. The CalSTRS investment committee takes the private equity consultant's semi-annual report in open session, then an investment decision in closed session.
  • Tuesday 29 September, New York. ILPA's Continuation Vehicles for the Limited Partner course meets the day before quarter-end. Virginia's two August lines are the kind of buy-side decision it is written for.
  • End of September, then mid-October. Anthropic's prospectus is now due at the end of the month and its listing in mid-October, BeBeez reported on Friday. A listing gives every venture secondary that holds Anthropic stock a public price.
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Gaël Parienté
The Secondary Brief | Founder & Content Manager
[email protected]
The Secondary Brief
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