In June 2023, TagEnergy closed a green bond of up to $623.5 million, with Copenhagen Infrastructure Partners and Singapore's GIC as investors. TagEnergy already had more than $1.2 billion of bank debt in place for its largest project. The bond raises a simple question: why add a second layer of borrowing on top?
Key takeaways
- TagEnergy closed a dual-currency green bond of up to $623.5 million (EUR 570 million) in June 2023, with Copenhagen Infrastructure Partners' Green Credit Fund I and GIC as investors.
- The first tranche of $295.3 million adds to the funding for the first stage of the ~1.3 GW Golden Plains Wind Farm in Victoria, Australia.
- The second tranche of $328.2 million is set aside for TagEnergy's other renewable assets across the UK, Europe and Australia.
- In November 2022, the 756 MW first stage of Golden Plains reached financial close with $1,205.9 million of non-recourse debt from lenders including the Clean Energy Finance Corporation, Commonwealth Bank of Australia, Westpac, EKF, KfW IPEX-Bank, Mizuho and Bank of China.
- G-Advisory certified the bond as consistent with the ICMA Green Bond Principles 2021, and the notes are registered at Interbolsa in Portugal.
What did TagEnergy raise?
A green bond split into two currencies, Australian dollars and euros, worth up to $623.5 million in total. A green bond is a bond whose proceeds can only be used for eligible environmental projects, checked against a published standard. Here the standard is the ICMA Green Bond Principles 2021, and G-Advisory provided the independent certification.
The notes are registered at Interbolsa, the Portuguese securities depository. Enerdatics' record describes this as a significant issuance for the Portuguese bond market.
The bond's two buyers are both large long-term investors. Copenhagen Infrastructure Partners (CIP) invested through its Green Credit Fund I, a fund set up to lend to renewable projects. GIC is Singapore's sovereign wealth fund. Akereos Capital acted as sole bookrunner and debt adviser to TagEnergy.
Why add a bond on top of bank debt?
Because the bank debt does not cover the whole cost of the project. Golden Plains stage one reached financial close in November 2022 with $1,205.9 million of non-recourse debt. Non-recourse debt is lent against the project's own cash flows, so the lenders cannot claim TagEnergy's other assets if the project fails.
Lenders rarely fund all of a project's cost. The owner has to put in the rest as equity. Enerdatics' record shows TagEnergy is the sole equity investor in Golden Plains stage one. That makes TagEnergy responsible for the whole equity share of a 756 MW build.
The bond's first tranche of $295.3 million adds to the existing funding for that first stage. Borrowing at the company level to help fund an equity commitment is one way for a growing developer to stretch its own capital further.
Enerdatics records three financings linked to Golden Plains: the $1,205.9 million project debt in November 2022, this green bond in June 2023, and a later debt financing for battery storage linked to Golden Plains, with no disclosed amount. Taking only the project debt and the bond's first tranche, disclosed financing for stage one comes to about $1.5 billion, or about $1.99 million per MW of the 756 MW stage. This is disclosed financing only, not the total project cost.
The project itself is large by any standard. Stage one is 756 MW of a planned 1.3 GW at Rokewood, near Geelong. TagEnergy is also delivering the engineering, procurement and construction for stage one, and Vestas will provide a 30-year service and maintenance agreement. The Clean Energy Finance Corporation, Australia's state-owned green bank, committed up to AUD 175 million ($117 million) of the debt. Stage one was expected to start operating in the first quarter of 2025.
What is the second tranche for?
The rest of TagEnergy's business. The $328.2 million follow-on tranche is set aside for TagEnergy's other renewable assets. The company builds onshore wind, battery storage and solar across the UK, Europe and Australia.
TagEnergy's stated aim is to bring more than 4 GW of onshore wind and other renewable projects into commercial operation across several OECD countries. A company-level bond gives it flexible money it can move between projects, which project debt cannot do. That flexibility matters for a developer running several builds at once.
TagEnergy was founded in 2019 by its management and the Impala SAS Group. It has since kept growing in Australia, including its 2025 purchase of ACE Power, which took its Australian pipeline to about 10 GW.
What does the deal signal for renewable financing?
It signals that private credit funds are filling the gap between bank debt and owner equity. Banks fund the bulk of a project at the lowest cost. Owners still need to find the rest. Funds such as CIP's Green Credit Fund I lend into that gap at the company level, usually at a higher return than banks take.
For fast-growing developers, this is a way to build more without selling stakes in their projects. The trade-off is cost. Company-level debt is usually more expensive than project debt, and it adds to the developer's own obligations. For investors like GIC and CIP, it offers exposure to a growing renewable platform with a green label attached.
Golden Plains itself shows how large single projects now need several layers of money. A 1.3 GW wind farm can draw on export credit agencies, commercial banks, a state green bank and private credit, all at once.
Frequently asked questions
How much did TagEnergy raise from its green bond?Up to $623.5 million (EUR 570 million), split into a $295.3 million first tranche for Golden Plains and a $328.2 million follow-on tranche for TagEnergy's other renewable assets.
Who invested in the bond?Copenhagen Infrastructure Partners, through its Green Credit Fund I, and GIC, Singapore's sovereign wealth fund.
What is Golden Plains?Golden Plains is a wind farm of about 1.3 GW in Victoria, Australia, developed by TagEnergy. Its 756 MW first stage reached financial close in November 2022 with $1,205.9 million of non-recourse debt.
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