Boost EPC ratings by up to 20 points and lower tenants' energy bills by 40%

Decarbonise housing portfolios at scale, whether for new builds or retrofits. Reach EPC targets faster by directing solar energy where it's needed most, effectively reducing tenant energy bills.

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Wellwood building social housing flats

How can we overcome the barriers to rooftop solar for flats?

People living in social housing flats experience the highest fuel poverty rates in the UK, yet have historically been locked out of rooftop solar due to technical and ownership considerations.

Until SolShare enabled shared distribution across multiple flats, allowing residents to access clean energy from the sun.

Share the power

Instead of every flat installing its own panels, your building shares a single rooftop solar system.

See how SolShare works

Divide it fairly

SolShare uses a dynamic sharing algorithm to decide where and when to distribute the energy, and makes sure all of the residents get their fair share.    

The best part: no one needs to manage it, each apartment's share is automatically balanced across the month.

Discover SolShare

Cut bills by up to 40% with intelligent sharing

SolShare dynamically distributes solar energy where it’s needed most, maximising self-consumption and minimising grid exports. Residents get fair access to free power, building long-term resilience against price spikes, while ther social landlord secures superior ROI.

 

Calculate SAP points

Share the power

Instead of every flat installing its own panels, your building shares a single rooftop solar system.

See how SolShare works

Divide it fairly

SolShare uses a dynamic sharing algorithm to decide where and when to distribute the energy, and makes sure all of the residents get their fair share.    

The best part: no one needs to manage it, each apartment's share is automatically balanced across the month.

Discover SolShare

Cut bills by up to 40% with intelligent sharing

SolShare dynamically distributes solar energy where it’s needed most, maximising self-consumption and minimising grid exports. Residents get fair access to free power, building long-term resilience against price spikes, while ther social landlord secures superior ROI.

 

Calculate SAP points
uk-how-solshare-works

Share the power

Instead of every flat installing its own panels, your building shares a single rooftop solar system.

 

See how SolShare works

Divide it fairly

SolShare uses a dynamic sharing algorithm to decide where and when to distribute the energy, and makes sure all of the residents get their fair share.

The best part: no one needs to manage it, each apartment's share is automatically balanced across the month.

Discover SolShare

Cut bills by up to 40% with intelligent sharing

SolShare dynamically distributes solar energy where it’s needed most, maximising self-consumption and minimising grid exports. Residents get fair access to free power, building long-term resilience against price spikes, while ther social landlord secures superior ROI.

Calculate SAP points
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SAP & EPC boost

Increases SAP points by 20 points and uplifts EPCs. Solar PV is one of the most powerful ways of increasing your EPC.

box-up

SAP & EPC boost

Increases SAP points by 20 points and uplifts EPCs. Solar PV is one of the most powerful ways of increasing your EPC.

box-pattern

Flexible solar allocation per flat

Allocate a specific amount of solar individually to each flat according to their needs. Every resident in the block benefits, regardless of which floor they live on.

box-pattern

Flexible solar allocation per flat

Allocate a specific amount of solar individually to each flat according to their needs. Every resident in the block benefits, regardless of which floor they live on.

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No flat access required

No hardware needed inside the flats, avoiding the struggle of gaining entry to residents' homes.

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No flat access required

No hardware needed inside the flats, avoiding the struggle of gaining entry to residents' homes.

Unlock more funding. Reach EPC targets faster.

Boost SAP ratings and unlock maximum funding for solar and battery storage.

SolShare is fully eligible for major UK grants, including the Warm Homes Plan, ORP, and the Local Power Plan.

Find out more about funding
Two social housing residents at Willowbrook in Wales: a man and an older woman seated together at a dining table in a community room, smiling warmly at the camera.

Suitable for new builds and retrofits

Whether you’re building new homes or upgrading existing stock, SolShare delivers a scalable installation solution suitable for both new build developments and retrofit projects.
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Proven results in UK social housing

“Scott Court is more than just a retrofit; it’s a blueprint for the future of socially responsible, sustainable housing.”

David Conway, Head of Asset Management, Hillcrest, Scotland

View case study
“It’s not just about putting shiny new things on a building, but the fact that they improve that person’s life."

Malcolm Davies, Welsh Government, Wales

View case study
“One of our residents reported that her energy bill was £100 less than this same time last year. That's a serious result!””

Tania Jennings, Net Zero Climate Manager, Climate Resilience, Lewisham Council, London

View case study

SolCentre: Your automated energy management tool

Social housing providers use SolCentre to streamline reporting for government grants and sustainability targets, reducing operational workload.

The platform provides a transparent view of whole-building performance alongside granular data for individual apartments.

  • Report on the positive impact of your projects to government bodies
  • Track flat-by flat electricity savings
  • Stay ahead of faults and failures
Learn more
SolCentre quick overview
Who we work with
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Start the conversation

Step 1

Book a meeting with our team. An address list is all we need to get started!

Step 2

Allume provides a full cost & benefit assessment on your properties, including available funding.

Step 3

Allume handles installation. Once you approve we arrange installation with out accredited partners.
Allume team members engaging in a technical discussion about SolShare hardware with UK housing stakeholders and installers to plan a solar retrofit project for an apartment building.
Allume SolShare solar installation
Allume SolShare team with Codi group
Step 01
Step 02
Step 03

Start your free solar feasibility assessment!
Testimonials

“The SolShare system seems to be a much fairer solution as the energy generated by the building can be shared equally to help our residents to keep their electricity costs down rather than going back to the grid.”

Picture of Joanna Davoile Wales & West Housing
Joanna Davoile
Executive Director (Assets)
Wales & West Housing

“This is an exciting first-of-its-kind project for Wales and exactly the type of thinking we need to see within the housing sector.”

Picture of Julie James Climate Change Minister Wales
Julie James
Climate Change Minister
Wales

“As a developer, we are proud to be bringing such a progressive scheme to the market. We have proactively worked with the various elements to bring the best technology to the scheme, and we’re thrilled with the results.”

Picture of Kelly Lemon Director at MKM
Kelly Lemon
Director
MKM, England

“One of our residents reported that her energy bill was £100 less than this same time last year. That's a serious result!”

Picture of Tania Jennings
Tania Jennings
Net Zero Climate Manager, Climate Resilience
Lewisham Council, England

"We installed just 3 inverters with 3 SolShares to serve 35 properties. If it wasn’t for Allume, we couldn’t have done it, there simplywasn’t space to fit 35 inverters."

Clark
Solar Installer in Glasgow

Frequently asked questions

Find quick answers about SolShare, the world’s first technology for sharing rooftop solar in UK flats. 
Read more FAQs
Does SolShare qualify for SAP 10.2 solar PV credits?

Yes. SolShare is classed as a direct connection of solar PV to flats. It qualifies for SAP 10.2 PV credits, typically adding 5-15 SAP points to each flat, making it a leading solution for meeting UK building regulations.

Does SolShare increase a flat's EPC rating?

Yes. By adding 5-20 SAP points, SolShare frequently increases a flat’s EPC band by at least one rating (e.g., Band C to B), helping landlords meet MEES standards and net-zero targets.

Can the Landlord supply be connected to SolShare?

Yes. Any separately metered connection, including the landlord’s communal supply, can be integrated. This allows solar to power shared services like lifts and hallway lighting before distributing the remainder to residents.

What is the warranty on a SolShare device?
SolShare comes with an industry-standard 10-year warranty. Our hardware is designed for long-term reliability in UK multi-unit developments.
Can batteries be used with a SolShare system?

Communal DC-coupled batteries with SolShare may be possible depending on the specific site layout.

If you are considering a battery installation, you must inform Allume via uk.info@allumeenergy.com to discuss the project and confirm technical feasibility for the proposed site.

There are many site variables that influence how well-suited a site is for battery storage, and which battery type is best.

Without a discussion with the Allume team, there is a significant risk to the success and functionality of the installation. 

What is the minimum number of apartments suitable for SolShare?

Typically, SolShare is optimised for buildings with 6 or more units. However, we review every enquiry to determine if our shared solar technology is the right fit for your specific project.

If the system exports energy, who receives the payment?

SolShare ensures solar is delivered to residents when they are using power to maximise savings. Any exported energy is entitled to a smart export guarantee payment. An MCS certificate must be issued for each connected flat, which can then be used to apply for SEG through the customers chosen energy supplier.

Do residents have to join a specific electricity retailer?

No. Residents maintain freedom of choice and can stay with any UK energy supplier. They also keep all market protections and benefits provided to vulnerable electricity customers.

What funding is available for SolShare?

SolShare qualifies for major UK grants, including the Warm Homes Plan in England, Optimised RetroFit Programme (ORP) in Wales and Social Housing Net Zero Heat Fund in Scotland and the Local Power Plan. 

Contact us for guidance on securing solar funding.

What are the typical energy savings?

On average, SolShare achieves a 40% reduction in grid energy usage. Savings can increase further with the addition of shared battery storage and smart energy management.

Is there a monitoring portal?
Yes. The SolCentre monitoring portal provides energy and bill savings data from site to flat level. This transparency is often a requirement for Warm Homes and other social housing initiatives. These metrics shows measurable impact for Government reporting, without manual admin.