ESOS support
Site information and energy-saving opportunities can support the organisation's wider ESOS review where the business is in scope.
Commercial and industrial solar
Power your operations. Cut grid exposure. Strengthen your energy strategy.
REST designs rooftop solar, battery storage and monitoring around the site's demand, operating profile and long-term commercial objectives.
Site-specific commercial modelling
Designed around technical due diligence
Metered generation and carbon evidence
Consultative B2B project support
The commercial ROI playbook
Turn underused roof space into an operational asset.
Commercial solar can reduce exposure to imported electricity, create a measurable generation record and support a longer-term investment case across the site.
Planning metricCommercial exampleIndustrial example
Illustrative scaleAround 50kWp250kWp+
Illustrative annual energy value£10,000–£20,000£50,000+
Indicative payback planning range4–6 years4–7 years
Capital allowance discussionReview qualifying reliefReview qualifying relief
Illustrative planning ranges only. REST confirms the model after reviewing interval data, tariff, roof condition, generation assumptions, network constraints and the final technical design.
Energy and carbon evidence
Make on-site generation visible across the organisation.
Compatible monitoring can provide a traceable record of generation and system performance for operational reviews, stakeholder reporting and wider energy planning.
SECR data
Metered kWh generation can contribute to the evidence used in applicable energy and carbon reporting processes.
Carbon planning
On-site renewable generation gives sustainability teams a measurable project within broader decarbonisation plans.
Stakeholder evidence
A documented project can strengthen conversations with customers, investors, staff and procurement teams.
System scale
From a single commercial roof to a multi-building energy project.
The correct scale depends on usable area, demand profile, grid connection and the organisation's objectives.
10kWp+
Small commercial
Offices, retail units, hospitality and owner-operated premises with meaningful daytime demand.
50kWp+
Mid commercial
Warehouses, larger retail, education sites and multi-unit premises with broader roof availability.
250kWp+
Industrial scale
Manufacturing, logistics, agricultural and portfolio projects requiring deeper technical and commercial review.
Commercial case studies
Proven returns across sectors.
Commercial, industrial and public-sector projects can have very different demand profiles, but each begins with a site-specific design and a clear commercial model.
CommercialAfter installation
Northgate Logistics, Leeds
Installed November 2024
- System size
- 250kWp
- Battery
- Not included
- First-year generation
- 218,000kWh
- Payback
- 5 years
Verified annual saving£54,000
CommercialAfter installation
Brook Farm, Essex
Installed June 2024
- System size
- 95kWp
- Battery
- 40kWh
- First-year generation
- 89,000kWh
- Payback
- 5 years
Verified annual saving£21,500
Public sectorAfter installation
St Anne's Primary, Manchester
Installed August 2024
- System size
- 45kWp
- Battery
- 20kWh
- First-year generation
- 41,000kWh
- Payback
- 6 years
Verified annual saving£9,800
A complete operational view
Generation is only valuable when the system fits the site.
REST reviews how the building operates, when electricity is used and how solar may interact with storage, EV charging, monitoring and future changes.
Demand profileDaytime consumption, peak periods, baseload and available interval data.
Site conditionsRoof areas, structure, access, meters, cable routes and operational constraints.
Wider energy strategyBattery storage, fleet charging, resilience, expansion and multi-site priorities.
Corporate desktop audit
Show REST the site before the first commercial review.
Outline one or more roof areas and provide the operational details that matter. The information is sent directly to the REST commercial team.
1Site2Roofs3Operations4Contact
Step 1 of 4
Find the commercial site.
Enter the full postcode or address so the satellite view can centre on the correct property.
Step 2 of 4
Outline every roof area REST should review.
Click around the first area. Close it with the green starting point or Finish roof, then add further buildings or roof sections.
Satellite drawing is not configured.Continue with the site details and REST can review the roof areas manually.
Step 3 of 4
Tell REST how the site operates.
These details help the commercial team prepare a more relevant first review.
Step 4 of 4
Who should REST contact about the site?
The audit request is saved and passed to the REST commercial team.
Audit request received
Thank you. The REST commercial team now has the site details.
The team will review the property, roof areas and operational information before making contact.
Return to commercial solarCommercial sectors
Built around the operation, not a generic solar package.
Each sector has different demand patterns, property constraints, approval routes and reporting priorities.
Warehousing and logistics
Large roof areas, daytime load, fleet charging and portfolio opportunities.
Manufacturing
High operational demand, process loads and more complex connection requirements.
Retail and hospitality
Daytime consumption, customer-facing ESG value and multi-site rollout potential.
Agriculture and rural
Barns, multiple buildings, machinery loads and land-based options.
Offices and estates
Corporate reporting, landlord considerations and employee EV infrastructure.
Education and public organisations
Budget planning, governance, visible carbon projects and long-term estates strategy.
From audit to operation
A consultative B2B project route.
The desktop audit creates the starting point. Technical surveys, commercial modelling and stakeholder approval shape the final project.
Desktop audit
Review the site, roof areas, operating profile and initial commercial priorities.
Technical survey
Confirm structure, electrical infrastructure, access, metering and delivery constraints.
Commercial model
Build the site-specific generation, value, equipment and project proposal.
Delivery and aftercare
Install, commission, monitor and support the system through its operating life.
Commercial solar questions
What businesses usually need to establish first.
The desktop audit gathers the information needed for a more productive technical and commercial conversation.
REST reviews electricity demand, operating hours, usable roof or land area, supply capacity and future plans before recommending a system size.
Yes. The commercial roof tool accepts several separate roof areas for warehouses, extensions, linked units and multi-building sites.
Yes. Storage can be considered for load shifting, peak-demand management, resilience or a wider energy strategy, subject to the site profile and technical review.
Metered generation data can provide evidence of on-site renewable electricity and carbon-reduction activity. The organisation should apply its own reporting methodology and professional advice.
Qualifying expenditure may be eligible for capital allowances such as full expensing or the Annual Investment Allowance. The business and its tax advisers must confirm eligibility and treatment.
REST reviews the site location, roof areas, operating profile, approximate energy spend and project priorities before preparing the next commercial discussion.
Yes. Projects can account for ownership, lease arrangements, multiple meters, portfolio sites and internal approval processes.
Commercial solar review
Send the site and business details to REST.
Share the property postcode, approximate electricity spend and the type of commercial energy project being considered. The REST team can then prepare the right next conversation.