Rooftop solar systems are among the investments supported by green retail finance

Imagine a small household business receiving a discounted loan to install rooftop solar panels, or a borrower accessing a preferential mortgage rate to purchase an energy-efficient home. These are practical examples of green retail finance, a growing segment that links household financial decisions to broader climate and sustainability goals.

According to Dr. Fiza Qureshi, a senior lecturer in finance at RMIT University Vietnam, green retail finance is becoming a key mechanism for advancing sustainable finance at scale, driven by the convergence of regulatory developments, technological innovation, and changing consumer preferences.

Global sustainability frameworks, particularly the Paris Agreement and the UN Sustainable Development Goals, have reshaped both institutional priorities and consumer expectations. Rising environmental awareness and stakeholder pressure have prompted financial institutions to embed environmental, social, and governance (ESG) principles into an expanding range of retail products.

“Furthermore, technological advancements, including AI, blockchain, and mobile financial platforms, have significantly reduced access barriers and transaction costs, particularly in emerging economies, thereby enabling wider participation in green finance markets,” Dr. Qureshi added.

A nascent segment in Vietnam

Green retail financial instruments are typically structured into three categories: bank-based instruments such as green loans, mortgages, car financing, insurance, and credit cards; capital market instruments accessible to retail investors, including green and sustainability bonds; and digital or fintech-enabled solutions, such as app-based platforms featuring gamification and carbon footprint tracking.

According to RMIT senior lecturer in finance Dr. Dao Le Trang Anh, green retail finance in Vietnam remains a nascent segment within the broader sustainable finance landscape.

While green credit has expanded rapidly, reaching approximately VND780 trillion by the end of 2025 and growing at an annual rate exceeding 20% since 2017, it remains concentrated in corporate lending, particularly across sectors such as green agriculture, renewable energy, green buildings, and green transportation. Retail participation remains limited.

“This reflects a structural imbalance where the supply of green capital is largely project-based, with insufficient penetration into households,” Dr. Trang Anh remarked.

At the retail level, financial institutions have begun to introduce green-oriented offerings such as HSBC’s green loan for homeowners investing in rooftop solar power and Standard Chartered’s green mortgage loan. However, the range of products remains limited compared with more mature markets. “There is also low consumer understanding and an underdeveloped supporting ecosystem,” Dr. Trang Anh added.

At the same time, the RMIT academic pointed to an increasingly supportive policy environment, providing a critical foundation for market expansion. Regulatory initiatives include the development of a national green taxonomy and the promotion of green credit guidelines by the State Bank of Vietnam.

In addition, a draft decree from the State Bank of Vietnam issued in 2025 proposes a fixed 2% annual interest rate subsidy for private enterprises, business households, and individuals borrowing for green, circular economy, and ESG projects.

Lessons from international success

Dr. Fiza Qureshi observed that green retail finance is not yet a globally mature phenomenon but rather a fragmented landscape with uneven levels of development. Success emerges primarily in markets where regulation, product design, and distribution channels are effectively aligned.

In developed markets such as the EU and the UK, comprehensive regulatory frameworks and disclosure standards have facilitated the large-scale deployment of green bonds to finance renewable energy projects. Ireland offers another notable example, where green mortgages achieved significant market penetration within a short period, particularly among first-time and higher-income borrowers.

Meanwhile, developing economies illustrate the critical role of policy intervention and institutional support in fostering green retail finance. Bangladesh, for instance, has developed an integrated ecosystem of green securities, insurance, credit, and bond markets, largely facilitated by proactive regulatory frameworks and central bank initiatives.

Consumer behavior is equally critical. Evidence from Japan and India shows that retail investors are sensitive not only to environmental impact but also to financial returns, transparency, and trust. Concerns about greenwashing, for example, can significantly hinder adoption.

Complementing these institutional and market-based approaches, fintech is proving to be a powerful enabler. Digital platforms such as China’s Alipay Ant Forest demonstrate how behavioral incentives, gamification, and real-time feedback can effectively engage consumers.

“Collectively, international experiences suggest that the success of green retail finance depends on the alignment of regulatory frameworks, financial innovation, and consumer engagement mechanisms,” Dr. Qureshi said.

Advancing green retail finance in Vietnam

Green retail finance does not scale organically and instead requires well-designed policy frameworks. To promote it in Vietnam, Dr. Trang Anh advocates a coordinated policy approach that addresses regulatory clarity, financial incentives, product innovation, and consumer engagement.

First, regulatory standardization is essential. A clear and credible green taxonomy, aligned with international practices such as the EU framework, plays a critical role. Evidence shows that unclear definitions of green products can discourage both banks and households from participating in the market. In Vietnam, accelerating the implementation of a national taxonomy and requiring transparent disclosure of retail financial products would help improve credibility and comparability.

Second, targeted financial incentives are a key driver of household adoption. Instruments such as interest rate subsidies, tax rebates, and concessional green loans have proven effective in promoting investments in energy-efficient housing and renewable energy. For Vietnam, expanding such incentives, particularly for rooftop solar, green housing, and energy-efficient appliances, would significantly stimulate retail demand.

Third, policy should actively encourage product innovation. In more mature markets, green retail finance has evolved beyond basic loans to include green mortgages, ESG-linked consumer finance, and sustainable investment products.

Finally, strengthening consumer awareness is essential. Even when demand exists, adoption may be constrained by limited understanding and low perceived impact. Integrating green finance into financial literacy programs, combined with behavioral incentives such as rewards and product labeling, can help translate awareness into action.

“Bridging the demand-supply gap will be critical to scaling green finance at the consumer level,” Dr. Trang Anh concluded.