ESG Frameworks: Taking Green Bonds and Social Bonds Off the Shelf
Time 7 Minute Read
Categories: ESG

As noted previously in the October 2020 edition of Baseload, the capital markets have seen explosive growth in the issuance of ESG debt in recent years. The advantages to utilities have been generally twofold: (1) provide access to a larger investor base than would otherwise be available (i.e. those investors with ESG-focused criteria) and (2) provide evidence of good corporate citizenship regarding certain of the issuer’s projects.

ESG encompasses three individual (but highly overlapping) elements: environmental criteria, social criteria and governance. The environmental element has been a mainstay of the capital markets since the late 2000s and has steadily increased since the International Capital Market Association (ICMA) first published its “Green Bond Principles” in 2014 and last updated them in 2018. [1] Debt issued in this category is designed to support specific climate-related or environmental projects and includes investments related to clean energy or pollution reduction. The social criteria, described in the “Social Bond Principles” [2] published by ICMA and last updated in 2020, focuses on projects “that address or mitigate a specific social issue and/or seek to achieve positive social outcomes.” [3] The third criteria of ESG is governance – the internal system of rules, policies and procedures that govern the management of a company. The individual elements of ESG are, by their nature, intertwined.

Broadly speaking, when domestic utility issuers began issuing green bonds several years ago, the debt was usually intended to finance a specific project or group of projects (i.e., a utility financing the construction of a wind farm). In such offerings, many issuers did not engage a third party to opine on the alignment of the project with the Green Bond Principles.

Several utilities have recently shifted from this “one-off” green bond strategy. Issuers are increasingly opting to establish a broader ESG-focused framework (or, in the case of certain issuers, solely a “green bond framework”), effectively serving as the issuer’s “shelf” for future ESG offerings. We have seen an increase not only in this “framework” structure for obtaining a second party opinion, but also an increase in the issuance by power issuers of “social bonds” (aligned with the Social Bond Principles) and also “sustainability bonds” (where proceeds are being devoted to uses in line with both the Green Bond Principles and the Social Bond Principles).

A number of domestic issuers have put in place “frameworks” over the past 3 or 4 years. Note that a few of the issuers in the list below have in place a “green-only” framework. [4]



HSBC Holdings plc (2017) ESG
Apple Inc. (2019) ESG
Citigroup Inc. (2019) Green
Pfizer Inc. (2020) ESG
Verizon Communications Inc. (2020) Green
Toyota Motor Credit Corporation (2020) ESG
Alphabet Inc. (2020) ESG
National Rural Utilities Cooperative Finance Corporation (2020) ESG
Oncor Electric Delivery Company LLC (2020) ESG
Truist Financial Corp. (2021) ESG
AFLAC Incorporation (2021) ESG
The Southern Company (2021) ESG


Both ICMA’s Green Bond Principles and Social Bond Principles provide guidance on the same four components: (1) use of proceeds; (2) process for project evaluation and selection; (3) management of proceeds; and (4) reporting. Note that the use of proceeds, reporting and any second party opinions do not form part of the terms and conditions of the bonds and typically do not create specific contractual obligations. However, these elements are referenced in the disclosure documents.

Counsel to the issuer and underwriters will often be involved in drafting the framework, working closely with the issuer’s investor relations and finance teams, along with ESG specialists at the underwriters. An issuer’s framework will reside on its website – typically found on the investor relations page and will follow the four components of the Green Bond Principles and Social Bond Principles. The framework is often posted on the issuer’s website prior to marketing an ESG bond transaction. The second party opinion with respect to the framework will reside on the website of the second party opinion provider for investors to review. Subsequent opinions are typically not provided for each issuance of bonds from the framework “shelf.” Note also that the second party opinion is in addition to the other reporting the issuer will provide, such as a website detailing use of proceeds, management’s assertion as to the use of any remaining proceeds and an attestation from the issuer’s independent auditor regarding the use of such proceeds.

One issue of which issuers should be aware when looking to launch an initial ESG bond offering is timing for posting their framework and second party opinion or other guidance to their websites. While some issuers already regularly disclose ESG-focused information on their website, and maybe even an annual sustainability report, other issuers might not have previously disseminated such information publicly. Issuers pursuing a registered offering should be mindful of Rule 168 [5] to ensure that any information posted to their websites immediately prior or during the offering regarding their framework or attestation will fall within the safe harbor and not be considered part of the offering.

Another somewhat related issue to this new structure is the ability to reopen an ESG bond. There have been several reopeners of “green bonds” that were issued to fund specific projects. A number of green reopenings have also funded additional green projects that have been developed since the time of the original green issuance. In each of these cases, we believe there would be a conversation about the Use of Proceeds of the reopener to ensure that the additional projects were in line with the original offering. However, under the new “framework” method of issuing ESG bonds, it would seem an even clearer call that (absent any non- ESG hurdles) the particular series could be reopened. But a similar analysis would still be advisable—making sure that the “Eligible Projects” in the reopener were in line with the “Eligible Projects” of the original series.

As ESG issuances become a more dominant feature of the investment grade debt world, we predict that ESG-related disclosure will also become more commonplace (and eventually could be required). While some issuers already voluntarily disclose progress toward achieving ESG-related goals in their 1934 Act disclosure, some investors argue that a lack of uniformity among such disclosures complicates their analysis and are increasingly demanding standardized corporate ESG disclosure. [6] The UK government recently proposed mandatory climate-related financial disclosures by 2022 for certain issuers and the SEC recently created a new ESG-related enforcement task force and indicated that comprehensive disclosure framework could be imposed in the future. Market participants should stay tuned as both this market, and market practice, continues to evolve and mature.


[1]  International Capital Market Association, Green Bond Principles: Voluntary Process Guidelines for Issuing Green Bonds (June 2018), available at principles-gbp/.

[2]  International Capital Market Association, Social Bond Principles: Voluntary Process Guidelines for Issuing Social Bonds (June 2020), available at

[3]  Bonds that are issued pursuant to both the Green Bond Principles and the Social Bond Principles are often referred to as “sustainability bonds”. Note the confusing distinction with “sustainability-linked bonds,” whereby the issuer includes certain financial and/or structural characteristics in the debt instrument that are linked to whether the issuer achieves predefined sustainability objectives. The principal difference between sustainability-linked bonds and green or social bond issuances is that the bond documentation for “sustainability-linked bonds” is directly tied to the issuer achieving certain predefined targets. One domestic example is NRG Energy Inc.’s December 2020 bond sale tied to its goal to achieve a 50% reduction of absolute greenhouse gas (GHG) emissions by 2025, and reach net-zero GHG emissions by 2050. Issuers typically incur an interest rate penalty for failing to meet defined targets.

[4]  Note, too, that Avangrid, Inc. has in place a Framework for Green Financing but has opted to obtain a Vigeo Eiris second party opinion for their inaugural and follow-on green bond issuances.

[5]  Rule 168 provides an exemption from the prospectus requirement under the 1933 Act for certain communications of regularly released factual and business information and forward looking information.

[6]  Declan Harty, Top SEC official signals ESG disclosures are coming, S&P Global Market Intelligence (March 15, 2021).

  • Associate

    Michelle represents energy and utility issuers and underwriters in a range of capital markets transactions. Michelle advises issuers and underwriters across a range of public and private securities offerings, including common ...

  • Partner

    Steven represents issuers and underwriters in a range of equity and debt offerings, with a significant portion of this work concentrated in the energy and utility industries. He has substantial experience with common stock ...

  • Partner

    Patrick represents issuers and underwriters in a range of capital markets transactions. Patrick advises issuers and underwriters across a range of public and private securities offerings, primarily in the power and utilities ...

  • Partner

    Pete’s practice focuses on all aspects of domestic and international capital markets transactions with a particular focus on the power and utilities industries. Pete is co-head of the firm’s Capital Markets practice. Pete ...


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