Iberdrola's First US Bond Since 2009 Is Not Its First US Debt

Iberdrola sold about $1.79 billion of green bonds into the US market on 27 October, and called it the company's first direct entry into US debt since 2009. Enerdatics' records show a $525 million US green bond in August 2024 and about $2.9 billion of US-purpose bank facilities in July 2025. Both of those things are true at once. The space between them is where the deal sits.

Key takeaways

• Iberdrola issued two tranches of green bonds on 27 October 2026, each recorded by Enerdatics at about $895.74 million for a combined issue of roughly $1.79 billion, sold through Iberdrola Finanzas SA and guaranteed by parent company Iberdrola SA.
• The shorter tranche carries a 5.40 percent fixed annual coupon maturing on 4 November 2029 and priced at 99.902 percent of face value; the longer carries 5.85 percent maturing on 4 November 2033 and priced at 99.994 percent.
• The offering drew 116 institutional investors, primarily in the US, with demand above $5 billion, oversubscribing the final amount by more than three times.
• Iberdrola calls the issue its first direct entry into the US debt market since 2009, while Enerdatics separately records a $525 million US network green bond in August 2024 and two BBVA-led facilities in July 2025 worth about $1.92 billion and $990 million for US grids and renewables.
• Proceeds fund US electricity network infrastructure, primarily transmission, and renewable facilities, against US capital expenditure Iberdrola projects at around $5 billion a year under a 2025 to 2028 plan totalling about $64.9 billion.

What does "first direct entry since 2009" actually exclude?

Three things get collapsed into one claim, and separating them is the exercise. The first is where the money is spent. Iberdrola has been funding US assets continuously, and Enerdatics holds the receipts: the August 2024 green bond raised for the US regulated electricity network business, and two syndicated facilities led by BBVA in July 2025, one for US grid networks and one for US renewables.

The second is who borrows. Avangrid, Iberdrola's US arm, spans eight utility companies across 24 states and manages more than 11 GW of onshore wind, offshore wind and solar from an operations centre in Portland, Oregon. It has raised money in its own right, including $1.2 billion of tax equity with Copenhagen Infrastructure Partners for Vineyard Wind 1 in October 2023. Capital raised at the subsidiary is not the parent entering a market.

The third is the one the claim is about. These bonds come from the group's financing vehicle, guaranteed by Iberdrola SA, sold directly to a dollar investor base. That is a different act from raising money in Europe and deploying it in America, or from letting the US subsidiary borrow locally. Seventeen years is a long absence from a market where you own eight utilities.

What do 45 basis points of term premium say about the credit?

That investors are not charging much for time. The gap between the two coupons is 45 basis points, spread across roughly four extra years of maturity. A term premium is the extra yield a lender demands for being repaid later rather than sooner, compensating for rate uncertainty and for the chance a borrower's credit weakens over a longer horizon.

Both tranches priced within a tenth of a point of face value, so each coupon is effectively its yield and the two compare directly. Forty-five basis points over four years is a little over eleven basis points a year of extra compensation. For a credit investors expected to weaken, or in a market demanding a steep premium for duration, that figure would be considerably wider.

The order book points the same way. Better than three times covered is strong but not extraordinary for a well-known European utility. Iberdrola has seen heavier books: when it reopened Europe's hybrid bond market in January 2024 with a perpetual issue, more than 200 investors asked for nearly five times the amount offered. That deal was subordinated paper sold to investors who knew the name intimately. This one is senior debt sold to a market being reintroduced to it.

Why issue in dollars when the euro market is open?

Because the assets the money buys earn dollars. A utility funding a regulated network in New York or Maine with euro debt carries a currency mismatch it must hedge, and hedging costs money every year of the borrowing. Issuing in the currency of the revenue removes that cost at source. At around $5 billion of annual US capital expenditure, the programme is now large enough that it stops being a rounding item in a group plan of about $64.9 billion.

A second argument is about who the buyers are. Regulated transmission assets with long lives suit insurers and pension funds matching long liabilities, and the deepest pool of those investors for dollar paper is in the US. Reaching them directly, rather than through a European syndicate, widens the base for every issue that follows.

Enerdatics' data shows how different this is from how Iberdrola has funded its European build. Across 80 financing records, the European pattern leans on policy lenders and structured capital: European Investment Bank loans for Spanish smart grids, Portuguese wind and Italian solar, a hybrid stack held deliberately stable at about $9 billion, and bonds in euros, sterling and Australian dollars. The $203.8 million European Investment Bank facility for 274 MW of Portuguese wind in January 2026 is typical of that channel: concessional, guaranteed and tied to one asset. A senior dollar bond sold to 116 institutions against a green framework is the opposite instrument.

What does the deal signal for US network investment?

That capital for American transmission will increasingly be raised in America by foreign parents, not only by their US subsidiaries. Iberdrola is not short of funding routes. It has a hybrid programme, standing relationships with multilateral lenders and a 33-bank revolving facility. Opening a dollar channel at parent level, guaranteed by the group rather than by Avangrid, signals that the US network build is now big enough and long enough to warrant its own investor base.

The second signal is what gets funded. Proceeds go primarily to transmission rather than generation, where returns are regulated and asset lives are longest. Iberdrola reported about $6.4 billion of net profit and $13.3 billion of EBITDA for the first nine months of 2026, up 10 and 7 percent, and its stated priority is regulated networks ahead of merchant renewables. A seven-year dollar bond at 5.85 percent is priced for exactly that kind of asset. Anyone reading the headline as a return to the US market should read the use of proceeds instead.

Frequently asked questions

How much did Iberdrola raise and on what terms?Two tranches, each recorded at about $895.74 million for roughly $1.79 billion in total. One pays a 5.40 percent fixed coupon to 4 November 2029, the other 5.85 percent to 4 November 2033, and both priced close to face value at 99.902 and 99.994 percent.

Is this really Iberdrola's first US debt since 2009?It is described as the first direct entry into the US debt market since 2009. Enerdatics separately records US-directed borrowing in the interim, including a $525 million US green bond in August 2024 and about $2.9 billion of US-purpose bank facilities in July 2025, so the claim turns on the parent issuing directly into the market rather than on where the money goes.

What will the proceeds be used for?Electricity network infrastructure in the US, primarily transmission, together with renewable energy facilities, financed or refinanced as eligible green projects under Iberdrola's Green Financing Framework.

Enerdatics tracks utility bond issuance across every major market, including all 80 Iberdrola financing records and the currencies each was raised in. Explore Enerdatics for the full comparables set behind this analysis.