SolShare: the world’s only hardware for shared solar

The SolShare system by Allume is the world’s first solar technology designed to distribute solar energy from a single rooftop solar array to multiple individual apartments.

SolShare explained

SolShare is a behind-the-meter solution, it makes solar for flats possible by delivering energy directly to residents, helping them lower bills.

By connecting behind-the-meter, SolShare delivers solar energy directly to each household. This ensures residents enjoy the full benefits of solar PV while retaining their right to choose an energy retailer.

As a direct connection of solar to flats, SolShare is engineered to maximise regulatory value. It qualifies for the highest possible SAP uplift and is a proven solution for achieving an EPC rating increase of at least one band.

 

How SolShare optimises solar PV for apartments

SolShare sits between the solar inverter and the individual apartment meters. It monitors the energy demand of every flat in real-time, directing the solar energy exactly where it is needed.

  • No individual inverters: Use one system instead of multiples ones
  • Minimalist infrastructure: Reduce the logistical headache of separate cabling and extra switchgear
  • Real-time distribution: Dynamic sharing ensures maximum self-consumption of solar PV generated energy
Technical system overview

Who SolShare is for

SolShare provides a scalable, commercially viable path to rooftop solar for flats for the entire building value chain.

  • Social Housing Providers: address fuel poverty and EPC targets on a scalable way

  • M&E Consultants: simplify complex electrical designs and ensures SAP 10.2 compliance at scale.

  • Developers: maximise the value of limited roof space to meet sustainability mandates

  • Installers: reduce cabling complexity and labour time, turning solar for flats profitable


 

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SolShare at a glance

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6+ Flats

Scalable solution

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6+ Flats

Suitable for low and medium-rise apartment buildings.

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SAP & EPC boost

Add 5–20 SAP points per flat and support EPC uplift

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SAP & EPC boost

Add 5–20 SAP points per flat and support EPC uplift.

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Up to 50%

Higher bill savings compared to individual solar systems

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Up to 50%

Higher bill savings compared to individual solar system

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-40%

Grid reduction

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-40%

Typical reduction in electricity drawn from the grid.

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Tailorable kWp

Custom solar allocation per flat

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Tailorable kWp

Allocate a specific amount of solar individually to each flat according to their needs. A highly effective tool for achieving SAP / EPC targets.

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SolCentre: Energy asset management tool

Track the success of your decarbonisation measures

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SolCentre: Energy asset management tool

Full energy reporting for each connected flat.

Maximising ROI: EPC ratings and SAP 10.2 compliance

For developers, M&E consultants and social housing providers, SolShare is a strategic tool to meet rigorous UK building standards. By delivering solar energy directly to individual meters, the system provides a measurable boost to EPC ratings. This helps assets meet SAP calculations by providing a verifiable, hardware-based solution for solar for flats.

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A world-first Allume SolShare hardware unit installed in a real-world setting to enable shared rooftop solar for multi-dwelling residents.

SolShare and batteries

SolShare can be integrated with battery storage systems to further optimise the use of rooftop solar across multiple flats. By storing excess solar energy generated during the day, batteries can help increase on-site consumption and reduce reliance on the grid during peak demand periods.

Not every site is a perfect candidate for communal battery storage and many site variables can affect performance. We’re here to help assess technical suitability and ensure the solshare system is designed to deliver the best possible results for your project.

Reach out to our team if you have a communal battery storage project in the works.

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Total transparency through SolCentre: your energy asset management tool

SolCentre helps social housing providers lower long-term OPEX by automating reporting across housing portfolios and reducing operational workload. It enables you to:

  • Report on the positive impact of your projects to government bodies

  • Track flat-by flat electricity savings

  • Stay ahead of faults and failures

 

Find out more
Allume SolCentre software dashboard displaying real-time solar energy usage data, financial savings, and carbon reduction metrics for apartment flats.
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SAP Calculator

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con representing a PDF download for the SolShare technical data sheet, providing essential specifications for M&E consultants and installers.

Datasheet

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 Contact us to get started

 

Your journey to shared rooftop solar with SolShare starts here.

Get in touch, and we’ll connect you with the right person at Allume UK to explore solar solutions for your project.