Examples of AI in the Public Sector: Sustainability

AI Public Sector Sustainability
23 April, 2025

The field of sustainability provides some of the best AI in public sector examples, especially in the UK, where AI adoption in government is accelerating. From intelligent waste management systems that promote recycling to AI assistants influencing solar energy adoption, these innovations highlight AI's growing role in sustainability efforts.

The success of such projects lies in knowing people’s behavior. Buying an electric vehicle or insulating one’s home might be a one-time decision, but with significant, long-lasting impacts where support can be crucial. At the same time, there are dozens of small, everyday choices that can be made in the name of sustainability, like recycling, using public transportation, or walking, but people often need nudges to get there.

AI technology can fill in both roles, supporting pivotal choices and helping to change small everyday habits—and to change those habits for many and for good. PwC found that AI for environmental applications could contribute up to $5.2 trillion to the global economy in 2030. 

We have 4 real-life AI sustainability use cases below, led by behavior design, and leading us into that future.

1. Reducing household waste and promoting recycling habits

Increasing recycling rates and reducing household waste are critical objectives for European cities, which must meet the legal requirement of achieving at least 60% recycling by 2030, up from the current average of 49%

Achieving this ambitious target will require active citizen participation, supported by effective behaviour change initiatives that encourage and enable more efficient recycling habits. 

In a previous article about the role of AI in the public sector, we presented a use case of recycling and identified several behavioral challenges that hinder residents’ recycling efforts. These include:

  • confusion about what materials can be recycled and how to recycle them properly 
  • a lack of awareness about the environmental impact of individual recycling efforts
  • low motivation driven by misconceptions about not separating waste at landfills 
  • the absence of clear feedback on one's contributions

An intelligent waste management system engaging residents to contribute to recycling

The Envac ReFlow system, deployed in smart cities like Stockholm, directly addresses the above-mentioned behavioural challenges, while offering continuous opportunities for education and engagement, keeping users informed and involved in the recycling initiatives.

The citizen-facing component of the platform features smart bins equipped with sensors deployed in large residential buildings, along with a companion mobile app for residents. These sensors: 

  • provide users with real-time feedback on their recycling performance
  • boost motivation by showing the direct impact of their efforts
  • allow them to compare their performance at the household, building, and neighbourhood levels
  • track their progress over time 

Integrated item scanning and image recognition AI technology also help eliminate confusion about what can be recycled and where to dispose of it properly. 

2. Eliminating mental barriers to shift to solar energy

Transitioning to solar power is a critical goal for the UK as the country aims to achieve net-zero carbon emissions by 2050. While governments often provide financial incentives, such as the UK's zero VAT on solar panel installation to encourage shifting to solar energy, psychological and mental barriers still prevent widespread adoption despite well-documented benefits. 

The process of installing solar panels often appears complicated to many, and the initial cost can be intimidating despite the potential for long-term savings. Calculating the return on investment (ROI) often exceeds many people’s capabilities and comfort level. The status quo bias—the tendency to stick with what's familiar—is a powerful force that hinders good decisions. 

LLM-based assistants that help make good decisions on switching to solar

The San Francisco-based Wattbot is a Large language model (LLM)-based AI assistant that breaks down mental barriers and makes solar energy more accessible and attainable for people, supporting them in making a challenging yet one-time decision to adopt a new technology that significantly reduces their carbon emissions for many years to come.

AI assistants that use LLMs can mimic a natural conversation with the user, just like they were discussing their needs and concerns with a human advisor. Wattbot’s system provides personalised guidance, analyzes users' electricity bills, historic consumption patterns, home location, roof orientation, and weather data to accurately predict solar energy production during the year, and calculate the return on investment (ROI) for solar panel installation. 

The software can also handle simple, rule-based calculations, minimizing errors, simplifying complex pricing models, aiding users in exploring financial options and savings, and streamlining decision-making.

3. Promoting climate action on a daily basis

Every public sector service a citizen interacts with is an opportunity to use the digital space to sway their behaviour towards more sustainable options. However, many public sector services collect high-quality, valuable data but only use it internally. Using data in a consumer-facing way can help reveal and educate the population about the problem as well as set the scene for collective solutions.

Gamified experiences to nudge small habits for big carbon savings

Ant Forest, a mobile app by Chinese conglomerate, Alibaba, uses machine learning to track and analyse users’ low carbon activities (walking instead of driving, purchasing digital tickets, etc.) and tailor nudges that help reinforce these positive behaviours. 

With these activities, users can plant virtual trees in the app, thus creating a game-like environment that motivates users to participate actively in eco-friendly behaviours. Using AI, the app can recommend activities customized for each user’s preferences and past habits, increasing the likelihood of engagement. 

This way, Ant Group has successfully created a habit-building loop: residents’ contributions to sustainability are engrained in thousands of daily decisions. This solution also makes their everyday small decisions more visible and rewards small shifts in behaviour. 

4. Tackling 2038 water consumption targets with today’s technologies

According to the United Nations (UN), we’re facing an unprecedented water crisis as global freshwater demand is predicted to exceed supply by 40% by 2030. 

One part of the problem is water overuse in many countries, which means that water is consumed at a rate that exceeds the sustainable supply. The UK government, for instance, has set a legally binding target to reduce water consumption in England per person by 20% by 2038

Saving water is the type of activity where sustainable behaviour could be better prompted if people first saw how much water they use per activity and understood the impacts of their behaviour when using certain quantities of water. So, how might we support households in controlling water consumption? 

Machine learning to deliver the right prompts to reduce water usage

Ecolab, a global leader in water and hygiene technologies, has been using AI to improve water conservation efforts. By using machine learning algorithms, their software analyses data related to household water usage patterns and identifies areas where improvements can be made. 

Showcasing water usage, just like smart meters did with energy, will help people understand the impacts of their behaviours. Building on top of this, the system uses nudges providing prompts at the right times (like before a shower) and using social proof like leaderboards to gamify it.

How might AI accelerate behavioral influence projects in the public sector?
Download the whitepaper

Behavior design-driven AI support in sustainability

What is our take on sustainability projects that adopt AI technology in the public sector?

  • AI support to help decision-making: Adopting solar power or enhancing home insulation has a profound effect on reducing an individual's carbon footprint. Despite available financial incentives, these one-time decisions can feel complex and overwhelming. AI tools can reduce the complexity of the process and offer personalised guidance, enabling individuals to make informed, impactful choices that drive long-term environmental benefits. 

AI coaching to change small everyday habits: Small, everyday actions such as recycling, reducing water usage, or using public transportation can collectively have a significant environmental impact. However, fostering consistent behaviour change requires ongoing motivation and constant feedback. AI-driven solutions can act as personalised coaches, using real-time data, feedback, and nudges to help individuals adopt and sustain these small but impactful habits, contributing to long-term sustainability goals.

Let's create your own sustainable product together!
Supercharge logo
The form is loading...