Who Was Allowed Into the Texas Grid? A Texas data center question uncovered foreign investors in the ownership of the power lines—and the rules that allowed them in.

I was looking into the Batch Zero data center project when I realized I couldn't answer a more basic question: Who actually owns the companies that deliver electricity to Texans?

Like a lot of people, I knew the names—ERCOT, Oncor, TXU. I had never really separated what each one did, much less asked who owned them. I assumed the grid was mostly a state-run system with some private companies around the edges.

Then I opened the ownership records. In 2007, investors led by KKR, TPG and Goldman Sachs Capital Partners bought TXU in a roughly $45 billion deal. In 2008, an investor group involving Singapore's sovereign wealth fund and a Canadian pension investor acquired a 19.75% minority interest in Oncor, the company that owns a major part of Texas's electrical delivery network.

And in Oncor's financial statements, I found something else: $1.253 billion came in from the equity sale. An equal $1.253 billion went to its parent company.

Foreign investment in critical Texas electricity infrastructure wasn't just a possibility. It was a documented ownership arrangement, reviewed within a legal and regulatory system. How did that become acceptable—and what safeguards came with it?

Batch Zero prompted the question; these older transactions are not evidence of a connection to that project.

Here's the part I wish someone had explained to me years ago. The Texas grid is not one government-owned company. Power plants generate electricity. Transmission lines are the highways moving it long distances. Distribution lines are the neighborhood streets that bring it to your home. In much of Texas, a retail electricity company sells you a plan—but you generally don't get to choose who owns the poles and wires outside your house.

Oncor owns and maintains a large network of those electrical roads. It's an investor-owned utility, regulated by the state. ERCOT is more like the traffic coordinator: it manages the flow of power and administers much of the wholesale electricity market. ERCOT is a private, membership-based nonprofit corporation, not a state agency; it operates under Texas law and oversight. It does not own Oncor's wires. ERCOT's own description.

And the regulator? That's the Public Utility Commission of Texas (PUCT), a state agency that oversees ERCOT and regulates utilities such as Oncor. Think of it as the public authority setting and enforcing many of the rules for the road owners and the traffic coordinator. Private ownership and public oversight exist side by side.

That is why the ownership question matters. Texans depend on the wires, but the wires can belong to investors. And when ownership changes, the public-interest question becomes what rights the investors get—and what the regulators require in return.

After the 2007 TXU buyout, the wider parent company carried heavy debt. Oncor, the regulated wires business, was legally and financially separated from parts of that risk through safeguards commonly called ring-fencing. Texas regulators approved conditions around the original acquisition, including provisions addressing a minority investor.

In November 2008, Texas Transmission Investment acquired 19.75% of Oncor. Behind the investment structure were vehicles associated with Singapore's GIC, Canada's OMERS/Borealis, and Texas-based Hunt interests. A later Delaware court opinion described the holding-company split as 49.5%, 49.5% and 1%, respectively. Those are percentages of an intermediate holding company, not direct percentages of Oncor.

Foreign ownership was not hidden in the sense of being absent from the public record. The filings, contracts and state orders show a process through which it was structured and subjected to conditions. That is the normalization worth examining: not a secret sale of ERCOT, but a regulated utility accepting outside capital while continuing to deliver an essential public service.

Oncor's 2008 cash-flow statement records $1.253 billion in net equity issuance proceeds and, on the next line, a $1.253 billion distribution to its parent. Texas's earlier regulatory order expressly contemplated the treatment of minority-sale proceeds.

That is not proof of an improper payment. But it changes the question. The investment was in a company that maintains Texas electricity infrastructure; the disclosed cash moved up to the parent. The documents shown here do not establish how the parent ultimately spent it.

The PUCT's job was not to run Oncor's power lines. It was to decide whether the ownership arrangements and safeguards met Texas regulatory requirements. Those protections included measures designed to keep Oncor financially separate from its leveraged parent and independent governance requirements.

Minority investors can also have rights that matter beyond their percentage of shares. A later PUCT order treated certain transfers of the 19.75% interest as control-related for regulatory purposes. That does not mean those investors controlled ERCOT or personally operated the Texas grid. It means the legal rights attached to a stake can matter as much as its size.

In 2018, Sempra acquired the majority indirect Oncor interest. The reported ownership split became approximately 80.25% through Sempra's ownership structure and 19.75% through Texas Transmission, subject to continuing governance restrictions. The question is not whether all foreign investment is inherently improper; it is whether the public can understand the ownership rights and assess the protections attached to critical infrastructure. Oncor annual filing.

The foreign-investment story extends beyond Oncor. In June 2022, an affiliate of the Abu Dhabi Investment Authority (ADIA), which invests on behalf of the government of Abu Dhabi in the United Arab Emirates, completed a 10% non-controlling investment in Sempra Infrastructure for $1.73 billion. That business includes liquefied natural gas projects and energy networks in North America. Sempra's SEC filing.

Here is the distinction: Sempra Infrastructure is not Oncor. The Abu Dhabi stake does not establish that ADIA owns Oncor or ERCOT. Oncor's reported ownership remains 80.25% through Sempra's Oncor holding structure and 19.75% through Texas Transmission, with separate governance safeguards. Oncor's 2025 filing.

But the investment is still relevant. It shows that foreign sovereign capital can enter different parts of America's energy infrastructure through different companies and transactions. The questions to ask are which assets the investor is buying into, what rights come with the investment, and which public authorities review it. ADIA's investment description.

There are two different federal questions that shouldn't be confused. One is foreign investment in a U.S. business. The Committee on Foreign Investment in the United States (CFIUS) can review certain transactions for national-security concerns. The 2008 Oncor investment agreement contained a CFIUS-related closing condition. We have not established the precise federal review outcome from the public documents collected here.

The other question is foreign-supplied grid equipment. In May 2020, President Trump signed Executive Order 13920, targeting specified bulk-power equipment transactions involving foreign-adversary risks. That order was about equipment supply-chain security—not a blanket prohibition on foreign investors owning shares in electric utilities. Its implementation was subsequently suspended and revised under the next administration. Department of Energy background.

So there isn't one single gatekeeper. Texas utility regulators examine ownership and service protections. CFIUS can examine national-security risks in covered investments. Federal energy-security authorities address certain equipment and supply-chain risks. Each has a different job—and each leaves a different public record.

The question I'm left with is simple: When outside investors are allowed into essential infrastructure, what does the public get to know about the decision, the conditions, and who is accountable afterward?

The original SEC filings, Texas utility orders and court records below support the transaction history. They do not establish misconduct, unrestricted investor control or a particular confidential CFIUS clearance decision.