Blackstone Closes $8.7bn Energy Transition Fund

Blackstone has raised $8.7 billion for its latest energy fund, Blackstone Energy Transition Partners V (BETP V), the firm said in a press release on 19 October 2026. It said the fund is “more than 50% larger than its predecessor vehicle”.

The money is already going into power generation, electric transmission lines and equipment used to cool data centres. That ties the fund to the growing demand for electricity that Blackstone cites, including from data centres.

In brief

Blackstone closed BETP V at $8.7 billion, saying it was “significantly oversubscribed” and reached its hard cap.
The fund has backed three power and transmission companies and bought three businesses, including a supplier of parts for data centre liquid cooling.
Blackstone says its energy transition investments have returned a 34% net IRR since 1997, as of 30 June.

What did Blackstone announce?

A final close is the point at which a fund stops taking new money from investors. Blackstone said BETP V reached that point at $8.7 billion and that the “significantly oversubscribed fund reached its hard cap”. A hard cap is the maximum size a fund has agreed with its investors.

The release does not say how large the previous fund was, or name the investors in the new one.

BETP is Blackstone’s strategy for “control-oriented equity investments in energy-related businesses”, according to the release. That means it usually buys controlling stakes, rather than small minority holdings. Blackstone says the strategy has committed over $34 billion of equity globally.

Item	Figure
Final close	$8.7 billion
Versus predecessor	More than 50% larger
Investment period began	June 2026
Platform companies funded	3
Acquisitions so far	3

Source: Blackstone press release, 19 October 2026.

How does Blackstone describe its returns?

“BETP’s energy transition investments have generated, as of June 30, a 34% net IRR since 1997,” Blackstone said. IRR, or internal rate of return, is a standard way private funds measure annual returns. “Net” means after fees.

This is Blackstone’s own figure and has not been independently checked. The release also says the returns shown exclude investments in owning and extracting hydrocarbon reserves, even though earlier funds “were not managed to exclude such investments”.

David Foley, Global Head of Blackstone Energy Transition Partners, said: “We believe there is a generational opportunity for experienced investors in the energy transition to provide solutions to the challenges posed by growing demand for electricity.”

Where is the money going so far?

BETP V started investing in June. Blackstone said it has funded three “platform companies”, Kindle, Fisterra and Viridon, which back management teams “to develop and operate new power generation and electric transmission lines”.

It has also made three acquisitions “focused on energy efficiency and resiliency”. Blackstone describes them as follows:

Flow Control Holdings: “a rapidly growing, leading U.S. provider of highly engineered flow control solutions and components for data center liquid cooling, a more energy efficient alternative to air cooling”.
Dresser Utility Solutions: “the leading North American provider of measurement (meters), control (regulators, pressure relief valves) and infrastructure repair products for gas and water utilities”.
DarkVision: “a provider of innovative, technology-enabled asset inspection services that enhance the safety, reliability and productivity of critical energy infrastructure”.

The release gives no prices for these deals.

How does this connect to data centres?

Data centres need large amounts of power, and the chips used for AI run hot. Liquid cooling moves heat away from servers with fluid instead of air. Blackstone describes it as “a more energy efficient alternative to air cooling”.

The wider BETP strategy has also leaned into this area. Since January 2025, BETP “has committed over $11 billion in new equity investments”, Blackstone said. That figure covers the strategy, not just the new fund.

According to the release, the deals include Advanced Cooling Technologies and three “highly-efficient natural gas-fired power infrastructure” projects: Hill Top Energy Center, Wolf Summit Energy and Potomac Energy Center.

Blackstone also listed recent exits from older funds. They include selling a majority stake in Sabre Industries, which it describes as a maker of “critical infrastructure for power utilities, telecom and data centers”. Another is the IPO of Legence, which Blackstone says serves “mission critical data center” and other markets.

Blackstone’s data centre exposure goes beyond this fund. It owns the data centre operator AirTrunk, which reportedly delayed a Singapore REIT listing. It has also been reported as a lender in the Broadcom and Anthropic chip debt package.

Our read

This is TSN’s analysis. The fund’s early deals show where Blackstone sees demand: new power plants, transmission lines and the equipment that keeps data centres cool. The 50%-plus jump in fund size suggests investors are willing to back that bet, but the release leaves out the predecessor’s size and deal values. The 34% return figure is self-reported and covers almost three decades, so it says more about the strategy’s history than about how this fund will perform.