Alternergy is expanding its solar mounting range with Clenergy solar mounting solutions for UK installers.
As a UK solar distributor, Alternergy is initially introducing the Clenergy SolarRoof Pro range for rooftop PV projects. Clenergy develops mounting solutions for residential, commercial and utility-scale solar installations worldwide, with a wider portfolio covering pitched roofs, flat roofs and ground-mounted applications.
For installers, the value of a mounting system is not only how securely it holds the modules, but how easily the correct components can be selected, stocked and installed across different roof types.
SolarRoof Pro is designed around that approach, combining a common rail platform with roof-specific interfaces, configurable clamps and pre-assembled connections.
This article looks at the SolarRoof Pro features that are most relevant when specifying and installing the system on UK rooftops.
What Is Clenergy SolarRoof Pro?
Clenergy SolarRoof Pro is a modular rooftop PV mounting system designed for residential and commercial pitched-roof installations.
The system combines rails, roof interfaces, module clamps and associated mounting components to create a configurable structure for installing framed solar modules.
SolarRoof Pro is suitable for tile and metal roofs, supports portrait and landscape installation and is designed to work with most framed PV modules.
The main advantage of the modular approach is that installers can retain the same overall mounting platform while changing the roof interface to suit the application.
Key SolarRoof Pro Features
Suitable for residential and commercial pitched-roof PV projects
Supports portrait and landscape module installation
Compatible with most framed PV modules
Universal mid/end clamp design
Pre-assembled cross-connection system
Z-module fixing technology
AL6005-T5 aluminium and SUS304 stainless-steel components
Multiple roof interfaces for different roof constructions
Clenergy - Keech Care Hospital, Bedfordshire, England, UK 160KW Project
What Makes SolarRoof Pro Practical for Installers?
SolarRoof Pro includes several features aimed at reducing the number of installation steps and component variations required on site.
Clenergy uses a pre-assembled cross-connection system to connect roof hooks and rails, while its Z-module fixing technology is designed to simplify the attachment of mounting components.
The current SolarRoof Pro system also uses an integrated universal mid/end clamp. The same clamp can be configured as either a mid or end clamp by rotating the clamp block.
That means fewer separate clamp types need to be ordered, stocked and identified during installation. For installers working across repeat residential or commercial projects, this can simplify:
- product selection
- stock management
- installation preparation
- component identification
- future replacement or expansion
The benefit is less about one individual component and more about reducing unnecessary variation across the mounting system.
Choosing the Right SolarRoof Pro Roof Interface
The roof interface is one of the first decisions to make when specifying SolarRoof Pro. The rail system may remain consistent, but the fixing method changes according to the roof construction.
Clenergy's SolarRoof Pro range supports a variety of pitched-roof applications, including:
- pantile roofs
- plain tile roofs
- slate roofs
- trapezoidal metal roofs
- corrugated metal roofs
- standing-seam metal roofs
Tile and slate installations use dedicated roof hooks or brackets, while metal roofs use interfaces designed around the relevant sheet or seam profile.
For tile roofs, for example, SolarRoof Pro includes different roof hooks and tile interfaces. Clenergy also provides UK-specific product datasheets, installation guides and a dedicated SolarRoof Pro tile-bracket list.
The tile-bracket list is particularly useful when specifying a project because it allows the roof interface to be checked before ordering rather than relying on a generic roof hook.
Correct interface selection depends on factors including:
roof covering
underlying roof structure
rafter or fixing positions
module dimensions and layout
wind and snow loading
roof pitch
array position
project location
Installers should always refer to the current Clenergy design and installation guidance for the project.
SolarRoof Pro Roof Applications
SolarRoof Pro supports a range of pitched-roof applications using roof-specific interfaces and mounting components.
Aluminium and Stainless-Steel Construction
Solar mounting equipment remains exposed to external conditions throughout the life of the PV system.
SolarRoof Pro therefore uses corrosion-resistant materials including AL6005-T5 structural aluminium alloy and SUS304 stainless steel for key mounting components.
These materials provide the strength and durability required for long-term rooftop installation, where the mounting structure forms the connection between the PV modules and the building.
Portrait and Landscape Module Installation
Roof geometry does not always allow a simple, uniform module layout.
SolarRoof Pro supports both portrait and landscape module orientation, giving installers greater flexibility when designing arrays around roof dimensions and obstructions.
This can be particularly useful on residential roofs where chimneys, dormers and roof windows restrict usable space.
Supporting both orientations allows the array to be adapted to the roof without changing the mounting platform.
MCS 012 and UK Solar Mounting
Certification is another important consideration when specifying mounting systems for UK PV projects.
In March 2026, Clenergy confirmed that it had regained full accreditation under MCS 012 Issue 3.0 for its certified mounting products, following testing carried out at the British Board of Agrément (BBA) during 2025.
MCS 012 assesses solar mounting systems for building roofs, including performance against wind uplift, fire and weather resistance requirements. Issue 3.0 covers mounting systems for both pitched and flat roofs.
For an installer, the important point is not simply that a product carries MCS certification. The mounting configuration still needs to fall within the conditions covered by the relevant certificate and manufacturer's installation instructions.
That includes checking the roof application, interface, fixing arrangement and other limitations relevant to the system being installed.
Clenergy provides UK-specific certificates, datasheets, installation guides and technical documentation through its SolarRoof Pro Downloads Centre, along with SolarRoof Pro installation videos covering different roof applications.
Key Checks Before Ordering SolarRoof Pro
Before ordering mounting components, it is worth confirming the parts of the design that directly affect component selection:
- roof type and covering
- underlying roof structure
- fixing locations
- module dimensions
- portrait or landscape orientation
- rail spans and fixing centres
- wind and snow loading
- array position
- required roof interfaces
- module clamps
- manufacturer installation requirements
- applicable UK certification
Clenergy also publishes installation guidance covering details such as rail spacing, fixing locations and maximum rail overhang.
For example, its SolarRoof Pro guidance for slate and tile installations states that rail-end overhang must not exceed 40% of the interface spacing.
This is a useful example of why the final mounting layout should come from the manufacturer's design guidance rather than from generic rail-spacing rules used across different systems.
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Clenergy Solar Mounting at Alternergy
Alternergy is initially stocking Clenergy SolarRoof Pro for UK installers, with UK stock availability, trade pricing, technical documentation and project support.
Explore the Clenergy solar mounting range at Alternergy or contact our team for help selecting mounting components for your next project.