Behaviour change is expected to play a significant role in meeting our decarbonisation goals, with 62% of the necessary emissions cuts required to reach net zero relying on changes in behaviour and 53% of this depending on consumer adoption of new technologies, such as heat pumps, EVs and solar panels.
The Behavioural Insights Team (BiT) have put forward a practical framework, the ‘4 As’, to engage people in net zero behaviour: awareness, acceptance, access and adoption. The UK Government will need to improve all 4As from a consumer angle to encourage behaviour change, which will require significant policy support.
Residential buildings
Decarbonising our homes will require significant changes to consumer behaviour, from getting consumers to switch to low carbon heating and install energy efficiency measures, to asking households to vary their energy usage to balance the grid. To meet the Seventh Carbon Budget, the proportion of UK households with a heat pump will need to rise from 2% today to 52% by 2040 before reaching 80% by 2050 and consumer-led flexibility will need to increase from 2.5GW to 10-12 GW by 2030 to support the clean power target.
Enabling behaviour change in relation to home retrofit will need to be central to the upcoming Warm Homes Plan if we are to be on track to meet the Seventh Carbon Budget. This should include taking forward the following policy recommendations:
Launch a public awareness raising campaign: Public knowledge and awareness of energy efficiency measures and low carbon technologies remain low. According to DESNZ’s latest public attitudes tracker, whilst 86% of people are aware of the need to change the way we heat our homes, only 39% stated they know a lot or fair amount about this, showing a knowledge gap around what this means in practice for the public.
Recent research by Citizens Advice also found that while households are interested in retrofit, other household improvements, such as new kitchens, are viewed as a higher priority. As such, there is clearer policy support needed to raise the salience of retrofit with the public.
The UK Government is planning to publish a net zero public participation plan this year. As noted in the Carbon Budget and Growth Delivery Plan, this is set to provide information around climate action and will include campaigns to support the uptake of low carbon technologies. We are keen to see further details on how the participation plan will function in practice.
It will be important that any individual campaigns are not siloed and form part of a broader, coherent national awareness raising campaign and narrative around the public’s role in addressing climate change. Reaching those who are, or have become, disengaged with the net zero transition will also be critical if it is to have a wide impact on public behaviour.
A national awareness raising campaign must go further than just increasing awareness of the changes people must make and aim to also increase acceptance of low carbon technologies.
As such, approaches should be based on robust research to understand what will resonate most with specific demographics. This should include financial savings, as well as other co-benefits such as health, warmth and property value.
Any campaign should make use of all avenues to normalise retrofit in the public consciousness, including advertising in places most people will come across, such as bus stops, supermarkets, TV, radio and social media.
It’s also important that any national awareness raising campaign tells people where to go or what to do next to act on the information they’ve received from the campaign, such as signposting to advice services.
Set up a national retrofit advice service in England: For households looking to upgrade their homes, the current process is complex and confusing. People are unsure where to find trusted information and advice on what energy efficiency measures and low carbon technologies will be suitable for their homes and they struggle to know if they are eligible for financial support.
This is most prevalent in England, as advice services are already in place in Scotland, Wales and to some extent, Northern Ireland.
Although there are pockets of local advice in parts of England, overall provision is variable and there remains a postcode lottery for households. The lack of a trusted, single point of contact for retrofit advice makes it difficult for households to have confidence and procedural ‘know how’ to act. Our research shows that 49% of homeowners in England don’t know where to get independent, impartial advice on making improvements to their home and 36% aren’t confident in assessing where to start.
In relation to heat pumps specifically, research by the Social Market Foundation has found that 50% of people think there is too much conflicting information.
A complex and confusing customer journey, with a lack of impartial and tailored advice, acts as a barrier to increasing household confidence in installing measures in their own homes. It was positive to see recognition of the importance of trusted advice within the Carbon Budget and Growth Delivery Plan and plans for the UK Government to create a single-entry point for advice on energy efficiency and low carbon technologies, with more detail to come in the upcoming Warm Homes Plan.
To ensure there is sufficient advice provision, we are calling for the UK Government to set up a national retrofit advice service in England as part of the Warm Homes Plan. This will improve access to energy efficiency, low carbon heating and other low carbon technologies for the home by simplifying the consumer journey.
Access to clear, impartial advice will also be essential to help consumers feel confident in engaging with using energy more flexibility and maximise the benefits of their low carbon technologies. Post-installation advice will also be critical to help individuals with the operation and maintenance of newly installed upgrades, helping to guarantee carbon emissions and energy bills savings are realised.
A national retrofit advice service should support all households, regardless of property or tenure type, understand what steps they can take to reduce emissions and energy bills, including those in flats as well as heritage homes and homes in conservation areas. Such a service should be linked up with any public awareness raising campaign, so people can be seamlessly signposted to the next stage in the consumer journey once they are made aware of the importance and benefits of retrofit.
We know from our experience delivering Home Energy Scotland on behalf of the Scottish Government, the impact of access to expert, impartial and tailored advice on accelerating home upgrades.
For example, the latest evaluation data from 2022/23 shows that since receiving advice, 42% of customers had installed at least one energy efficiency, low carbon heat or renewable energy improvement and 42% of customers were planning to install at least one improvement in the next 12 months. Air source heat pumps (81%) and solar PV (74%) were the most installed measures that were attributed to Home Energy Scotland advice during this evaluation period.
The importance of local engagement: Not everyone will engage with the transition in the same way and there is a critical role to play for local level action to engage communities in retrofit. It was encouraging to see recognition in the Carbon Budget and Growth Delivery Plan that there is a potential role of organisations, such as schools and charities, in the upcoming net zero public participation plan.
An increasing number of combined and local authorities are also setting up retrofit one stop shops to support their residents upgrade their homes. From our experience delivering Home Energy Advice North East on behalf of the North East Combined Authority, we know the importance of a trusted end-to-end solution that is accessible to all residents.
A national retrofit advice service in England should work in partnership with and support such existing or future local advice services. This will ensure a simple customer journey for households and effective referral pathways into and out of each service delivering the best outcomes for people.
Research has shown that the way households make decisions around retrofit can be influenced by interactions with neighbours, family, friends and their local community. There is therefore a clear role for trusted intermediaries, such as local charities, health care organisations and community-based groups, to support wider engagement with home retrofit.
A national retrofit advice service in England should partner with such trusted intermediaries, as is the case in Scotland and Wales. Building referral pathways to reach the most vulnerable or hard to reach through existing customer support networks will be key to ensuring they receive the right support.
We have argued that community energy groups could be well-placed to fulfil the trusted intermediary role, as they have a strong understanding of the communities in which they operate, allowing them to tailor messaging to what will resonate most with people and build trust to overcome behavioural barriers to engagement.
The UK Government should encourage local and combined authorities delivering retrofit schemes to partner with community energy organisations to support home upgrades in their areas. To make this process as easy as possible for both parties, the UK Government should provide templates and guidance to support setting up formal partnerships.
Improve consumer protection: There is a patchwork of consumer codes and schemes across Great Britain which, combined with a lack of trusted information and advice, can leave people unsure of where to turn if they have issues with installations or need post-installation support.
This risks denting consumer confidence and trust and could significantly impact consumer behaviour by making them reluctant to invest in retrofit if they are unsure of the quality of installations or if they will be able to access redress.
As part of the Warm Homes Plan, the UK Government must ensure that the consumer protection landscape if improved and made as simple as possible for households. This should include access to a simple redress scheme so that if something goes wrong, it is quickly rectified. Access to impartial, expert advice can also help signpost people to the right place if things go wrong.
Ensure there is a financial offering for all: Improving access to energy efficiency measures and low carbon technologies means addressing the affordability barrier that many households face. Recent research by Citizens Advice found that whilst 19 million UK homeowners are interested in undertaking retrofit measures in the next five years, 66% of them are concerned about the costs.
Cost-of-living pressures also impact the ability of households to invest in home upgrades, with 4 million homeowners having less than £100 left after covering essentials and a further 3.6 million having between £101 and £250 left. Policy support to ensure that there is a government-backed financial offer in place to support all households is therefore crucial to enabling behaviour change.
Policy recommendation that should be taken forward include:
- Ensure those in fuel poverty receive grants that cover the full cost of retrofit. Whilst there are existing fuel poverty schemes, such as the Energy Company Obligation, these have not been well targeted. Previous schemes have been short term in nature and the current Warm Homes: Local Grant, which provides grants through local authorities for households in fuel poverty, is only confirmed until 2028. The Warm Homes Plan should ensure there is a well-targeted, long-term scheme that provides fully funded measures for households in fuel poverty. The process to access a fully funded upgrade should be made as simple and straightforward as possible, with an impartial, expert advice service acting as a clear referral route, with lessons to be learned from Scotland’s national fuel poverty programme, Warmer Homes Scotland.
- Offer tiered grants for a range of retrofit measures across the income scale to remove the cliff edge of support faced by households on low and middle incomes who do not qualify for fuel poverty schemes but are unable to fund retrofit measures themselves. Whilst there is support in place for heat pumps through the Boiler Upgrade Scheme, households on low and middle incomes will still struggle to fund the remaining costs and there is currently no grant support for this group for energy efficiency measures or other low carbon technologies.
- Provide expert, tailored advice to households so that they know what financial support they are eligible for.
- Consolidate all UK Government backed financial support under one brand to make funding easier to access and identify and build a recognisable brand over time, trusted by households.
Reduce running costs for low carbon heating: Given that the price of electricity is 4 times higher than the cost of gas, the running costs for low carbon heating systems are not guaranteed to be lower than a fossil fuel heating system.
This will need to be addressed in the short term to incentivise more households to switch to low carbon heating. Recent analysis by E3G has found that, with policy changes, households could see their heating bill halve by switching from a gas boiler to a heat pump.
Crucially, action is needed to remove social and environmental policy costs from electricity bills. There are several ways to do this, such as moving policy costs into general taxation or implementing a targeted exemption for those using electric heating, but importantly households who are unable to switch from gas should not be penalised. We urge the UK Government to set out how it intends to remove policy costs from electricity bills as part of the upcoming Warm Homes Plan.
The role of regulation: In some cases, there will need to be a role for regulation to act as a ‘stick’ to enable behaviour change, but this will need to be accompanied by sufficient policy support to make adhering to regulation achievable.
One example of this is in the private rented sector. We are supportive of the UK Government’s intention to bring in minimum energy efficiency standards for the private rented sector, but there needs to be sufficient support in place to enable landlords to make changes to their property and adhere to the new standard. This includes:
- Raising awareness of any upcoming changes to regulations.
- Providing access to tailored advice for landlords to enable them to understand how to meet the new standards.
Learning from international examples: The UK should look to examples of successful home upgrade schemes abroad to gain insights into how to incentivise public behaviour change.
One such example is the French national retrofit scheme, France Rénov, which has streamlined the customer journey by consolidating the retrofit process under one single brand and provides tiered grants through MaPrimeRénov to ensure those on lower incomes have access to the support they need. There is also a website that acts as a single point of entry into the scheme, a financial aid simulator with personalised estimates of grant support, a directory of local installers and access to local advisors.
The success of the French scheme is evident in the evaluation statistics. Only 12% of the population had not heard of it as of 2023, compared with over a quarter of people in the UK being unaware of any government scheme.
Since its launch, the French scheme has funded home upgrades in an estimated 2.4 million homes at a cost of EUR 13.2 billion, as well as stimulating investment in the broader retrofit market, with nearly 37 billion EUR in renovation activity. MaPrimeRénov has also been found to deliver energy savings far more efficiently than the UK’s Energy Company Obligation (ECO), achieving 1.59kWh/year per £ spent compared to only 1.04kWh/year per £ spent through ECO.