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The Important Changes Electricians Need to Know in 2026

The UK electrical industry is approaching another important milestone, with BS 7671:2018+A4:2026 — the latest version of the IET Wiring Regulations — moving towards becoming the sole edition that installers should be working to.

The past three months have seen further guidance published on Amendment 4, clarification around Electrical Installation Condition Reports (EICRs), and updated supporting publications. There have also been changes to wider building regulations that electricians involved with new-build and refurbishment work should be aware of.

The biggest issue for October 2026 is simple: the transition period for the previous version of BS 7671 is coming to an end.

Amendment 4:2026 moves towards mandatory use

BS 7671:2018+A4:2026, often referred to as the “Orange Book”, is now available and represents a substantial update to the 18th Edition Wiring Regulations.

The IET says the previous BS 7671:2018+A3:2024 edition remains valid during a transition period until 15 October 2026. Until that date, installers can work to either version. After the transition period, the previous edition will no longer be the current standard.

For electricians and electrical contractors, October is therefore an important deadline.

Anyone still relying on the “Brown Book” should be making sure they have access to BS 7671:2018+A4:2026 and understand the changes before the transition period expires.

New requirements for battery storage

One of the most significant additions in Amendment 4 is a new chapter covering stationary secondary batteries.

This reflects the rapid growth in domestic and commercial battery energy storage systems.

Battery storage is increasingly being installed alongside solar PV, electric vehicle charging equipment and other low-carbon technologies. The IET says the new requirements are intended to address electrical energy storage and the supply of electrical installations.

This is particularly important for installers because battery systems can introduce different considerations from conventional electrical installations, including protection, isolation, earthing, installation location and interaction with other sources of supply.

The changes demonstrate how BS 7671 is increasingly having to accommodate installations where electricity is not simply supplied from the grid.

Power over Ethernet gets its own section

Another notable addition is a new section covering Power over Ethernet, or PoE.

PoE allows electrical power and data to be delivered through network cabling and is becoming increasingly common in buildings.

Examples include:

* Wireless access points
* CCTV cameras
* VoIP telephones
* Network equipment
* Building automation equipment
* IoT devices

The inclusion of PoE within BS 7671 recognises the growing overlap between traditional electrical installations and communications infrastructure.

This is an area that is likely to become increasingly important as smart buildings and connected devices become more widespread.

Functional earthing and ICT equipment

Amendment 4 also introduces requirements concerning functional earthing and functional equipotential bonding for information and communications technology equipment and systems.

This is another example of BS 7671 evolving beyond conventional mains electrical wiring.

Modern buildings contain increasing amounts of electronic equipment, networking infrastructure and communications systems. Earthing and bonding arrangements can therefore have implications not only for electrical safety but also for the reliable operation of sensitive electronic equipment.

Major changes to medical locations

Section 710, covering medical locations, has undergone a major revision.

The update also introduces a schedule of test results for recording the resistance of supplementary protective equipotential bonding conductors.

Medical electrical installations have particularly demanding requirements because loss of electrical supply or inadequate protection can have serious consequences.

Installers and inspectors working in hospitals, medical centres, dental practices and other healthcare environments should therefore pay particular attention to the revised requirements.

Changes to EICR reporting

One of the more immediately relevant changes for inspectors is the treatment of the FI — “Further Investigation” — classification on EICRs.

Under Amendment 4, C3 and FI classifications have been separated from C1 and C2 classifications.

Importantly, an FI classification no longer automatically makes an EICR unsatisfactory. The wording has also changed from further investigation being required “without delay” to further investigation being “advised”.

The IET has stressed that periodic inspection and testing is intended to establish whether an installation is suitable for continued use. It is not intended to become a general fault-finding exercise.

This distinction could make a significant difference to the way EICRs are interpreted by property owners, landlords and contractors.

“Isolator” is no longer the preferred terminology

Another relatively small but interesting change concerns terminology.

The word “isolator” has been removed from BS 7671 and is now considered too broad a term for the purposes of the Regulations.

Instead, the standard distinguishes between devices such as disconnectors and switch-disconnectors, depending on their characteristics and intended use.

The IET acknowledges that electricians will probably continue using the word “isolator” on building sites and in everyday conversation.

However, designers and those producing formal documentation should be aware of the terminology used in the latest edition.

Changes affecting switching and isolation

Amendment 4 also updates Table 537.4, which deals with protective, isolation and switching devices.

The revised table includes additional references to devices such as:

* Firefighters’ switches
* Residual direct-current protective devices
* Switched socket-outlets
* Switch-disconnectors

The changes are intended to give designers a clearer choice of equipment while making the different functions of devices easier to understand.

This is particularly relevant to installations incorporating EV charging and other modern electrical equipment.

EV charging and battery systems remain major areas

Although electric vehicle charging is not itself a completely new subject within BS 7671, Amendment 4 needs to be viewed against the rapid growth of EVs, battery storage and renewable generation.

Electrical Safety First says Amendment 4 reflects the changing way electricity is generated, stored and used in homes, where EV charging, battery storage, solar PV and ICT infrastructure are increasingly common.

This means electricians increasingly need to consider an installation as an integrated energy system rather than simply a collection of socket outlets and lighting circuits.

Supporting guidance has also been updated

The changes aren’t limited to the main Wiring Regulations book.

The IET has been updating its supporting publications to bring them into line with Amendment 4. This includes the new ninth edition of the On-Site Guide and updated editions of Guidance Notes covering areas such as:

* Selection and erection
* Isolation and switching
* Inspection and testing
* Protection against fire
* Protection against electric shock
* Protection against overcurrent
* Special locations
* Earthing and bonding

The IET says these publications have been updated to BS 7671:2018+A4:2026.

For electricians using older copies of the guidance, this is an important consideration because simply owning the latest Wiring Regulations book may not provide all of the updated practical guidance needed for day-to-day work.

Changes to wider building regulations

There have also been some recent developments outside BS 7671 that could affect electrical work.

In England, the Government updated Approved Document L during September 2026, including revisions to the guidance covering energy efficiency and greenhouse gas emissions. The September update included corrections to the 2026 editions and new frequently asked questions. ([GOV.UK][7])

The Government has also issued a September 2026 direction concerning fibre-optic cabling in existing non-higher-risk buildings.

From 1 September 2026, certain work involving drilling holes no larger than 25mm through walls for fibre-optic cabling is covered by a specific dispensation from certain Building Regulations procedural requirements.

While this isn’t a change to BS 7671 itself, it is relevant to contractors working on modern communications infrastructure alongside electrical installations.

What electricians should do now

With the 15 October transition deadline approaching, electrical contractors should consider the following:

1. Make sure you have access to BS 7671:2018+A4:2026.
2. Familiarise yourself with the changes rather than simply replacing the old book.
3. Update your inspection and testing procedures.
4. Check EICR documentation and understand the revised FI classification.
5. Review procedures for battery storage and other energy-storage installations.
6. Pay particular attention to EV charging and multiple sources of supply.
7. Update company templates, certificates and documentation where necessary.
8. Make sure staff and apprentices are working from current guidance.
9. Check that supporting publications such as the On-Site Guide and Guidance Note 3 have been updated.
10. Remember that BS 7671 is a standard rather than an Act of Parliament — other statutory requirements, including Building Regulations, still need to be considered.

The big change for October 2026

For most electricians, the most important development over the coming weeks is the end of the BS 7671 transition period.

The IET currently states that BS 7671:2018+A3:2024 remains valid until 15 October 2026. After that date, Amendment 4 becomes the version installers need to be working from. ([IET Wiring Regulations][1])

The changes are much broader than a simple collection of minor amendments. Battery storage, PoE, ICT systems, medical locations, EICR reporting, switching and isolation are all examples of how electrical installations are changing.

With homes increasingly incorporating solar panels, battery storage, EV chargers, heat pumps, smart devices and high-speed communications, BS 7671 is evolving to cover a much more interconnected electrical environment.

For electricians, the message is clear: **the move to Amendment 4 is now very close, and October 2026 marks an important point in the transition to the latest UK Wiring Regulations.**

*This article is intended as a general news and information overview. Electrical work should always be designed, installed, inspected and tested by appropriately competent persons using the current BS 7671 requirements, applicable legislation and manufacturer instructions.*

Households can save as plug-in solar panels come to market

More families are set to save money on bills as plug-in solar panels become legal across Great Britain.  

From today (27 August), the easy-to-install panels can be plugged into homes across the country, saving households up to £110 a year on their bills through clean, homegrown power. 

Each plug-in solar kit produces up to 800W of power, enough to provide up to 20% of an average home’s electricity use. This can run a typical fridge, television, Wi-Fi router, laptop, phone charger and an Xbox S operating at once when the sun is shining.  

This all comes with no installation cost and without taking any electricity from the grid. 

The legal changes follow rigorous, independent safety testing, covering all key electrical elements, which shows that compliant panels are safe and compatible with UK wiring.  

The UK safety specification is more stringent than that of Germany, where the technology is already widely used and around half a million new devices were plugged in last year. 

Homegrown power is the only way to deliver energy security for the country and financial security for families and businesses.  

Energy Secretary Miatta Fahnbulleh said: 

Plug-in solar is a simple, affordable way for households to take control of their energy bills and start saving straight away.  

From this summer, we’re giving more families the ability power their homes with clean homegrown energy.

Major retailers, such as Currys, B&Q, Screwfix and Amazon have worked with government on the rollout of plug-in solar and will soon have them available to purchase in stores and online.   

The low-cost panels can be put in any outdoor space or on some balconies. Before purchasing or installing plug-in solar devices, people should check whether any permissions are required for the property. This may include permission from a landlord and/or building owner or freeholder permission, planning permission or listed building consent. 

Decisions on whether to approve requests are a matter for landlords, freeholders or councils, but we encourage them to consider each case on its individual merits. 

Enabling these easy-to-install panels is just one of the ways the government is giving people breathing space to help tackle bills.  

In July, the Prime Minister announced plans to cut VAT on energy bills to give families breathing space this winter. This builds on the £150 of costs taken off energy bills in the Budget last year and the expansion of the £150 Warm Home Discount to around six million households.  

Retailers including Amazon, Argos, Curry’s and Wickes have all committed to stocking plug-in solar panels. 

John Boumphrey, UK & Ireland Country Manager, Amazon said: 

Amazon is the largest corporate buyer of carbon-free energy in the UK, and we’ve invested in 50 solar and wind projects to date.  

The government’s announcement on plug-in solar panels is a practical step that gives households a simple way to generate their own power, reduce bills, and contribute to the UK’s net zero goals. We’re looking forward to helping customers benefit from this technology. 

Graham Biggart, Managing Director for Argos, said:  

We’re really pleased to now offer plug-in solar panels for Argos customers. By making this technology more accessible, we’re putting more power in the hands of our customers and helping them explore practical ways to manage energy use at home. 

As a brand trusted by millions of customers across the UK, we’re proud to bring innovative products like this to more homes and give customers greater confidence and choice when it comes to emerging home technologies.

Michelle Gorringe-Smith, Director of New Categories at Currys, said:  

The safe roll-out of plug-in solar products represents an important step in supporting consumers with ways to save money on their energy bills. 

We’ll continue to work closely with DESNZ and our suppliers to make these products available to UK households as soon as possible, including through both our website and larger stores.

David Wood, CEO, Wickes:  

By giving people a simpler and more affordable way to generate clean energy at home, this technology has the potential to put solar within reach of many more households.  

With the UK having some of the oldest and least energy efficient housing stock in Europe, making energy-saving technologies easier to access will be an important part of helping people reduce their energy bills and supporting the transition to a lower-carbon future.  

We look forward to making these products available online to our customers in the coming weeks.

Joanna O’Loan, Knowledge Manager at Energy Saving Trust, said:  

The arrival of plug-in solar panels represents a significant milestone in expanding access to clean energy for households across Great Britain. 

While the savings will vary from home to home, plug-in solar panels will give more people greater control over their energy use and costs. As these products become more widely available, access to clear and reliable information is essential to help people make informed choices that are right for their home and budget.

Chris Hewitt, CEO Solar Energy UK, said: 

This is a great example of Industry and government coming together and delivering quickly for Britain.  

Solar and batteries are already the most effective way for homes and businesses to slash their energy bills by more than half, and making plug-in solar lawful will bring cheap, clean power to households that have not been able to access these benefits before.  

Our industry continues to work closely with government to ensure that all customers can have confidence in the safety and reliability of these new technologies.

Gary Booker, Managing Director of British Gas, said:   

Until now, generating solar power has required the right roof, the right home and significant upfront investment. That’s why innovations like plug-in solar are so important. They open up the benefits of solar to more households, enabling more people to produce some of their own electricity. 

At British Gas, we’re pleased to be bringing this technology to our customers, giving them more control over their energy use and helping them save money on their bills.

Trevor Hutchings, CEO of the Renewable Energy Association said:

From today, with little more than a trip to the shops, people in Britain will be able to harness the energy of the sun to power their households.

The arrival of plug-in solar is a huge step forward in democratising renewable energy and giving everyone the access they deserve to clean, cheap, homegrown power. Plug-in solar saves money – up to £100 a year – and it’s only right that this benefit should be felt by renters and flat-owners as well.

Our electricity prices are some of the highest because of our exposure to volatile international gas markets.  Innovations like plug-in solar and the wider renewables roll out will help us bring down bills and strengthen our energy sovereignty.

David Boyer, Director of Electricity Systems, at Energy Networks Association, said:

This is a major step forward for incorporating micro generation safely and efficiently onto the UK’s energy grid. Network operators will continue to work closely with government, Ofgem and manufactures to ensure the registration process for micro generation evolves to meet consumer demands.

There is already record demand for solar power across the country. Figures released by MCS recently showed there were almost 150,000 solar panel certified installations in the first six months of 2026, up 17% on the previous highest start to a year in 2025. That is the equivalent to an installation every 74 seconds.  

Battery installations have also risen significantly, with installations almost double the same period last year with 36,000 certified installations. 

Legalising plug-in solar panels builds on savings homeowners can already make of up to £480 a year from rooftop solar, helping more people in a range of property types generate their own clean electricity and cut their energy bills.  

Why electrical safety in public places is so important

We found this video on YouTube and it highlights why electrical safety in all public places is so important.

In 2018, a 7-year-old boy named Harvey was fatally electrocuted at the King Harold Pub in Romford.

This video was created by Leon Rygol, an electrician with over 25 years of experience in the electrical industry, and in this video he investigates how a tragedy like this could happen in the UK, a country full of regulations and safety standards.

He speaks with Harvey’s mother Danielle about the final hours before the incident and examine the electrical failures that led to his death. He also breaks down the fault using a simple demonstration to show how dangerous electrical installations can become when safety systems fail.

The accident was so severe that the landlord responsible is now serving a prison sentence. This video is about awareness, accountability, and preventing something like this from ever happening again.

Sign the petition (https://bit.ly/4rsMlBf), share this video and speak to your local MP to create awareness.

UK Government to make “plug-in solar” available within months

More households will be helped to save money on bills through plug-in solar panels as the government vows to go further and faster on clean energy in response to conflict in the Middle East.

The current conflict is yet another reminder that the only route to energy security and sovereignty for the UK is to end dependence on fossil fuel markets and accelerate the drive for clean, homegrown power, as well as new renewables and nuclear.   

Already the government has taken significant steps in speeding up the move to clean energy in response to the conflict. Last week, the government’s annual renewables auction was brought forward to July. The most recent auction was the biggest ever and alongside the previous auction, enough clean energy to power 23 million homes has been confirmed. 

Today, the government is driving forward with the rollout of “plug-in” solar panels (low-cost panels that families can put on their balconies or outdoor space) to be available in shops within months and save people money on their bills. 

Retailers like Lidl and Amazon, alongside manufacturers such as EcoFlow, are working with government to enable them to be brought to the UK market. 

Plug-in solar is already widely used by households across Europe, with Germany seeing around half a million new devices plugged in per year.   
The free solar power can be used directly through a mains socket like any other device, without an installation cost, thereby reducing the amount of electricity taken from the grid and cutting energy bills.

The easy-to-install technology could save many households significant amounts on their energy bills and help make the UK less reliant on global fossil fuel markets. 

The government has taken decisive action in response to the conflict in the Middle East to fight for consumers and businesses on the cost of living, and is speeding up plans for more clean, homegrown energy that the UK controls to ensure energy sovereignty and security. 

This is alongside new rules coming into force today implementing the Future Homes Standard, which includes common-sense measures to ensure the majority of new homes are built cheaper to run, with solar panels and clean heating as standard. 

These measures on new homes could save families up to £830 a year on their energy bills, compared to a standard home with an EPC rating of C. This will ensure they are more comfortable and affordable – and create at least 75% less carbon emissions than those built to the 2013 standards.

Energy Secretary Ed Miliband said: 

The government is determined to fight people’s corner in this crisis, which is why we have acted to prevent unfair practices like price gouging and provided immediate help for the most vulnerable facing spiralling heating oil prices. 

The Iran War has once again shown our drive for clean power is essential for our energy security so we can escape the grip of fossil fuel markets we don’t control. 

Whether through solar panels fitted as standard on new homes or making it possible for people to purchase plug-in solar in shops, we are determined to roll out clean power so we can give our country energy sovereignty.

Housing Secretary Steve Reed said:   

Building 1.5 million new homes also means building high-quality homes that are cheaper to run and warmer to live in.   

As we make the switch to clean, homegrown energy, today’s standard is what the future of housing can and should look like. Not only will these changes protect hardworking families from shocks abroad but will also slash hundreds of pounds off their energy bills every year.

The government is also announcing and innovative new approach, predominantly benefiting Scotland and East of England, and launching in time for this winter, enabling energy companies to offer discounted energy bills to customers on windy days, rather than continuing the previous default practice of paying wind turbines to turn off. 

Historic underinvestment in Britain’s electricity grid means wind farms in these areas are being paid to switch off on windy days when the network cannot carry all the clean power they produce. Government will look to bring forward new legislation to ensure more homegrown, clean energy can be passed on as discounted electricity to consumers during these periods.

Future Homes Standard

  • The Future Homes Standard turns the page on over a decade of failure by previous governments. More than a million homes were built with higher bills following the cancellation of the Zero Carbon Homes standard in 2015 – leaving families exposed to the energy price spike after Russia’s invasion of Ukraine. 
  • today we are laying the regulations for the Standard and publishing its details
  • it will put energy in the hands of the British people and help cut bills for good, protecting against fossil fuel price spikes like those triggered by the conflict in Iran

“Discounted energy”

  • At the moment, wind farms are often paid to switch off on windy days, because the system can’t use all the power being generated, due to historic underinvestment in the grid required to match this supply with demand across the country
  • to tackle these so-called “constraint payments”, we are launching a new, innovative trial, which would mean that using the generated power would become a more cost-effective option compared to turning turbines off
  • this will enable suppliers and flexibility service providers to offer households and businesses in areas with constrained renewable generation discounted power during these periods, so that more of the extra electricity can be used rather than wasted. It will predominantly apply to areas in Scotland and the East of England

And it comes ahead of households across the country seeing a significant cut to their energy bills next week, with a £117 reduction coming into effect on 1 April, which will be in place until the end of June, saving families money for years to come, whatever the international situation.

Georgina Hall, Corporate Affairs Director at Lidl GB said: 

At Lidl GB, we are committed to making sustainable living affordable for everyone and we welcome the government’s move to modernise regulations in the UK. Updating the regulatory landscape for this ‘plug-and-play’ technology is a positive step towards empowering British households to manage their energy costs and support the nation’s net-zero ambitions.

Greg Jackson, Founder and CEO of Octopus Energy, said:

People want to be free of these fossil fuel crises – since the conflict in the Middle East began, interest in solar has shot up 50%, heat pump and electric cars are also seeing surges.

Every solar panel, heat pump and battery cuts bills and boosts Britain’s energy independence. And the government’s latest steps can help cut the costs of electrification.

With solar, many homes can produce and use their own electricity, and cut their bills further by selling the excess back to us. With heat pumps and electric cars, their own electricity can slash heating and driving bills – stuff you simply can’t do with gas and petrol.

And it’s great that the government want to give homes and businesses cheap electricity on windy days instead of paying wind farms to switch off. Once this is permanent, companies and families will be able to invest confidently in electric vehicles, batteries and heat pumps – knowing they’ll be cheap to run.

Chris Norbury, Chief Executive of E.ON UK said: 

Cutting red tape on plug-in solar is an encouraging move and we will help ensure it works alongside, or as part of, whole-home solutions that genuinely empower people to take control of their energy use and cut bills.

At E.ON Next, we’re already seeing how powerful that shift can be. Whether it’s giving customers more control through innovative time of use tariffs or helping people get income from generating and storing energy at home via steerable assets, the direction is clear: simplicity, transparency and providing real financial rewards for doing the right thing.

Pair that with future homes built to a genuinely modern standard that prioritise affordable living and you start to build a system that works with and for people, not around them. The opportunity now is scale and simplicity. If we get that right, this isn’t just policy, it’s progress. It’s how we make new energy work – for everyone.

Chris O’Shea, CEO, Centrica, said:

As the UK’s biggest installer of low‑carbon heating, we welcome today’s announcements, including the Future Homes Standard. It’s a chance to ensure new homes come ready for the full benefits of modern energy systems — where low‑carbon heating, solar and smart technology are designed to work together from the start and reduce energy consumption. Our army of engineers stand ready to continue to keep Britain’s homes warm.

Josh Buckland, Strategy & Policy Director, EDF, said:

Electrification is fundamental to future proofing the country with homegrown electricity putting Britain back in charge of its destiny and helping keeping bills low for all in the long term. This is why we welcome the government’s Future Homes Standard and the decision that all new homes will have clean heating as standard. We are also pleased to see the focus on unlocking further investment in solar, offering customers a practical way to reduce both their bills and their impact on the environment.

Dhara Vyas, Energy UK’s chief executive, said:

The Future Homes Standard is a landmark moment for clean energy in Britain. New homes built under this standard will benefit from clean heating solutions and solar, protecting households from volatile gas prices and putting energy security within the home itself.

Combined with higher fabric efficiency standards, these homes will be warmer and cheaper to run – offering real and tangible change in people’s homes.

Critically, plans for rooftop solar with the possibility for households to export excess energy back to the grid mark a genuine shift in how people can engage with the energy transition, easily allowing them to save money from an increasingly flexible energy system.

The Future Homes Standard gives businesses the long-term certainty they need to invest in manufacturing, scale up supply chains, and build the skilled workforce that will make the targets set in the Warm Homes Plan a reality.

Chris Hewett, Chief Executive, Solar Energy UK, said:

Expanding solar energy and battery storage is a rapid and inexpensive solution to the looming energy crisis – for cutting bills, for the economy and for our nation’s energy security. From the largest installations to the smallest domestic systems, every battery and panel counts towards weaning us off reliance on imported and polluting fossil fuels. That’s why ensuring that new homes and other buildings are built with solar and boosting retrofits is so vital, and so welcome.

Charlotte Lee, Chief Executive, HPA UK, said: 

We are delighted to get confirmation that following a transition period, all new homes and buildings will benefit from low carbon heating such as heat pumps and heat networks. Coupled with solar PV, heat pumps and connections to heat networks provide a future proofed solution which will strengthen the UK’s energy security. 

Whilst the sector has been scaling up, with over a quarter of new homes built in the UK in 2025 having a heat pump, this clarity will unlock further investment into the supply chain, supporting thousands of highly skilled jobs, and contribute to the UK’s wider economic growth.

Dave Sowden, Chief Executive, Sustainable Energy Association (SEA), said:

We are delighted to see the publication of the Future Homes and Buildings Standard, which will provide much needed clarity for the low carbon heating and energy efficiency sectors. Today’s news will mean that the UK’s future building stock will provide residents with warm, comfortable, efficient, and cost-effective homes for decades to come. 

Additionally, it is encouraging to see the government recognise exciting low carbon innovations such as plug-in solar. The technology will be welcomed by consumers and businesses as we navigate the uncertain long-term impact on fuel bills due to a range of geopolitical factors.

Madeleine Gabriel, director of sustainable future at Nesta, said:

Many households are understandably concerned about paying for rising energy costs in the future because of the volatility of fossil fuel prices. With the government now making it even easier to switch to electricity to heat and power your home, there has never been a better time for people to consider installing solar panels, storage batteries and heat pumps. 

These home upgrades could save a typical household hundreds of pounds on its annual energy bill under current and projected energy prices and allow households to have some relief from the fossil fuel rollercoaster. Ensuring new homes have heat pumps from 2028 will also lock in that protection for future buyers.

Friends of the Earth’s head of policy, Mike Childs, said: 

For too long households across the UK have been hit by soaring energy bills driven by our dependence on volatile gas and oil markets. 

Making it easier to install plug-in solar panels and ensuring new homes come with heat pumps and solar power is a welcome step that will help protect families from future price shocks. 

But we must go further to end our reliance on fossil fuels, strengthen energy security and cut the carbon pollution driving the climate crisis. That means rapidly expanding the UK’s huge renewable energy potential and helping more people switch to electric heating and vehicles.

Aldersgate Group’s Executive Director, Rachel Solomon Williams, said:  

The built environment is one of the most challenging sectors to decarbonise. Including indirect emissions, buildings still account for 23% of the UK’s total carbon emissions. Measures that require homes and commercial buildings to include low-carbon heating and energy efficiency would play an important role in driving the transition. 

To ensure that these measures also contribute to reduced bills for households and businesses, it will be vital to continue work on addressing the rising cost of electricity. 

Garry Felgate, CEO of The MCS Foundation, said:

The confirmation that the majority of all new homes in England will have solar panels and low carbon heating systems such as heat pumps is very good news – for energy security, for the UK’s progress toward a carbon-free future, and for the countless households that will benefit as a result.

What matters now is implementation, and ensuring households have confidence in the technologies their new home will come with. So, it’s vital that housebuilders consider quality and consumer protection, by ensuring every installation is delivered by an MCS certified installer, to MCS standards.

Janine Michael, Chief executive at the Centre for Sustainable Energy said:  

The Future Homes Standard is a significant step forward in futureproofing our homes and our energy system. Building solar and low carbon heating into new builds as standard will create jobs, strengthen energy security and cut household bills, accelerating the green transition.  

We also welcome plans to improve access to a wider range of smart tariffs for households generating their own electricity. But the benefits must reach everyone. In particular, it must be easier for lower income and vulnerable households who have had solar panels installed through government-backed schemes to earn income as generators.

Elli Moody, Director of Policy and Advocacy at the Campaign to Protect Rural England, said:  

This announcement shows that the government is serious about harnessing the enormous potential of the UK’s rooftops to generate clean, sustainable energy. Mandating solar panels on new homes and making solar more accessible to renters as well as homeowners will deliver meaningful climate action without placing further pressure on iconic landscapes and productive farmland.

Ed Lockhart, Chief Executive of the Future Homes Hub, said:

The publication of the Future Homes Standard isn’t just about a change in regulation – it’s a promise to consumers that new homes will be more comfortable, more efficient, and more secure against the volatility of unstable fossil fuel markets.

Today’s announcement sets the timeline for all new homes to meet these higher standards from 2028. The Future Homes Hub is facilitating partnership across the whole housing ecosystem including sharing solutions between homebuilders, housing associations and developers of all sizes to ensure residents feel the full benefits, starting with the Future Homes Standard Ready campaign.

Dr Tom Dollard, Chair, Good Homes Alliance said:

The Good Homes Alliance welcomes the launch of the Future Homes and Building Standard as a positive step towards net zero and low energy homes.  This is a clear improvement for Part L of the building regulations that set targets to ensure all new homes and buildings are built fit for a net zero future, with low carbon heating and solar panels. 

Our industry-leading membership will continue delivering these homes that are more comfortable and cheaper to run.  We welcome the proposed used of HEM as a replacement for SAP after a period of dual running and look forward to working with industry to ensure these new low energy homes are delivered as comfortable, healthy homes.

We are confident that these standards, especially if used in combination with enhanced ventilation commissioning and low-cost, post-completion testing, such as short duration whole-house heat loss tests, will ensure delivery of both high-quality, energy-efficient homes and the housing supply needed to meet demand.

Lorna Wallace-Smith, Head of UK Communications for EcoFlow, said:

Allowing plug-and-play solar is a very positive step for expanding access to renewable energy in the UK. Seeing these systems available in stores by summer would be a major win for households, enabling people to take advantage of the longer, brighter days and start generating their own clean electricity straight away.

For many households – particularly those living in flats or rented homes – solar has not always been straightforward. Plug-and-play systems remove that barrier, making it far easier to get started.

Across Europe, similar technologies are already widely used, helping households reduce energy bills while supporting a more resilient, decentralised energy system. Solutions such as EcoFlow STREAM show how people can generate solar power from small outdoor spaces like balconies, gardens or terraces, without complex installation. With clear standards and the right regulatory framework, the UK now has a real opportunity to bring accessible solar to millions more homes – just in time for summer.

James Alexander, CEO, UK Sustainable Investment and Finance Association said:

Investors will welcome government plans to place low-carbon efficiency measures at the heart of new building regulations.

Well-implemented guidelines that raise the overall quality and sustainability of new properties can attract billions in private investment, support thousands of skilled jobs and contribute to wider economic growth.

This can also potentially reduce long-term risks for mortgage holders, as it will help to safeguard the valuations of their homes.

Lawrence Slade, Chief Executive, Energy Networks Association, which represents the UK’s electricity network operators said: 

Today is a significant step in the UK’s clean energy transition and in supporting the connection of additional home-grown solar power. The UK energy system is already an international leader in the delivery of local flexibility markets, and we’re keen to enable customers to safely and appropriately accelerate the connection of domestic renewable generation.

Network operators are investing to create an energy grid that will meet the UK’s future demands for clean, affordable and secure energy. This will enable the transition to the greater use of low carbon technologies (LCTs) which they are also supporting by practical innovations like ENA’s Connect Direct service, to make the connection of more LCTs as straight forward, quick and safe as possible for customers.

Charlie Mercer, Policy Director at Startup Coalition, said:

Today marks another excellent step forward in placing innovation and cutting-edge technologies at the heart of the UK’s energy security agenda. It’s clear the government is serious about putting tech into the hands of households across the UK to cut energy bills. The UK is home to a £22 billion energy startup sector that will drive forward energy security and economic growth across the country.

Mohamed Gaafar, Co-Founder and CEO, Gryd Energy, said:

This is a landmark moment that will redefine the role of homes in the UK’s energy system.

Solar on every new home is an absolute no-brainer – it will give households real control over their bills and reduce their exposure to volatile global energy markets, something recent events have made impossible to ignore.

At Gryd, we’re already delivering funded solar and battery systems on new homes with our developer partners, giving buyers the flexibility to own if it suits their budget. The early results speak for themselves: when clean energy is made accessible and affordable from day one, homebuyers choose it.

The Future Homes Standard is meeting homeowners where they already are – the public demand is clear to accelerate the UK’s move to a more decentralised, resilient energy system – and the industry is ready to step up and deliver.

Simon McWhirter, CEO at the UK Green Building Council, said:

We welcome the government’s decision to adopt the more ambitious Future Homes Standard, putting new homes firmly on a path away from fossil fuels and ensuring rooftop solar and improved levels of energy efficiency are the new norm. This will help lower household energy bills, reduce pressure on the electricity system, and give industry the confidence to invest in skills, supply chains and innovation.

Key changes to BS 5839-1:2025 – Part 2

This was first posted in IET Magazine November 2025.

Main Changes Covered

1. False Alarm Reduction

  • The standard now explicitly highlights the user’s responsibility to investigate and respond to false alarms every time they occur — those commissioning or handing over systems must inform users of this duty.

2. Commissioning and Handover Improvements

  • Before handover, the client or their representative must verify that manual call points have the correct replaceable parts and tools.
  • A cause-and-effect matrix (or equivalent text) explaining how system inputs affect outputs must be provided.

3. Maintenance Changes

  • Routine servicing intervals remain every six months but now allow flexibility of 5–7 months without losing compliance.
  • Control and indicating equipment clocks must be checked/adjusted to ensure accurate event logs.
  • In England & Wales, zone plans must be verified annually to reflect building changes.
  • New cybersecurity clauses require appropriate security measures and authentication to protect systems.

4. Extensions & Modifications

  • A new dedicated section covers how to extend or modify existing fire alarm systems.
  • Extensions must comply with the current standard, even if the original system does not.
  • Redundant devices (e.g., obsolete call points) should be removed or clearly labelled to avoid confusion during emergencies.

5. User Responsibilities

  • If the installation deviates from the standard (e.g., due to compromises in device placement), these variations must now be documented in the logbook, with provided model formats.

Relationship Between BS 5839-1:2025 and BS 7671

The article also clarifies how this fire alarm standard interacts with the UK electrical wiring rules:

  • BS 7671 (IET Wiring Regulations) often references BS 5839 for fire alarm systems under certain regulations.
  • Where differences occur between the two standards regarding fire alarm systems, BS 5839-1:2025 takes precedence.
  • The guidelines emphasise the need for safe isolation — BS 5839 no longer mandates a double-pole isolator, but safe isolation per UK electrical safety regulations remains essential.

Inspection & Testing Notes

  • Although functional testing of fire alarm systems should follow BS 5839-1:2025, electrical inspection and testing (e.g., for certification purposes) remains under BS 7671.
  • Inspectors must clearly agree with clients on what parts of the fire alarm system are included in any electrical inspection report to avoid misunderstandings about coverage.

Overall Message

Staying current with standard changes helps professionals and building duty holders manage fire safety, meet legal obligations, and reduce risk. Specialists should clearly communicate responsibilities, documentation, and limitations of inspections.

Further details – https://electrical.theiet.org/wiring-matters/years/2025/108-november-2025/key-changes-to-bs-5839-12025-part-2/