1. Aesthetic Revolution: When Solar Tiles Become the Roof’s “Natural Skin”

“Goodbye to the patch era” – this was the bold slogan when HelloTech launched its Smile solar roof tile. In June 2024, HelloTech’s global online launch event introduced the revolutionary Smile PV roof tile home green power system, marking a milestone in BIPV. It is the world’s first XBC crystalline silicon multi‑curved PV roof tile, combining curved design, aesthetics, reliability, and high efficiency in one product. The tile achieves a multi‑curvature shape with a 35 mm height difference, and the active area photoelectric conversion efficiency reaches 17.1%. The product has applied for 140 patents and has won international awards such as the Muse Design Gold Award and the A’ Design Award. Its XBC technology allows it to operate at lower temperatures than conventional technologies, offering higher safety under partial shading conditions.

Also in 2024, Breedon Group in the UK, in cooperation with European roof tile manufacturer Terran, launched the Generon system. It integrates 3.2 mm monocrystalline tempered glass PV cells into Breedon Elite concrete tiles. Just 260 tiles are enough to provide 4 kWp of generation capacity for a family home. John Brooke, the first developer to use the system, said bluntly: “You can’t tell from the roadside – that’s exactly what we wanted.”

2. BIPV: Deeper Integration of Building Materials and Power Generation

The integration of BIPV in tile roofs reached new heights in 2024. In October, Trina Green Building unveiled four new BIPV products: TEG photovoltaic flat tiles, TEG photovoltaic industrial walls, TEG photovoltaic noise barriers, and TEG coloured photovoltaic glass. The TEG flat tile uses Trina’s TOPCon cell technology and an anti‑debris design, with a maximum module efficiency of 19.4% and a maximum installation efficiency of 20.9%. The tile can be customised in colour and texture to match different architectural styles.

Germany’s Paxos Solar took a different route – solar roof tiles + heat pump system. Its double‑glass PV tiles produce 44 W per tile, using back‑contact cells from Longi and a matt black structure on the surface to capture oblique light. More innovatively, the system draws warm air from underneath the photovoltaic tiles into the heat pump intake. According to measurements by Cologne University of Applied Sciences, this reduces the heat pump’s annual energy demand by 20%. The material cost per square metre (including trapezoidal steel sheet and mounting rails) is €260, and the total roof weight is only 31 kg/m² – lighter than standard concrete tiles.

In May, UK‑based Russell Roof Tiles launched its first in‑roof solar product, RussFast Solar. Each panel delivers up to 455 W, and the company offers a market‑first 30‑year performance guarantee.

3. Tile Roof Racking Support Technology: Finding the Optimal Balance Between Protection and Fixing

Installing photovoltaic systems reliably without damaging the tile roof structure has been a core challenge. In December, China Construction Fourth Engineering Bureau obtained a patent titled “Photovoltaic roof for low‑carbon buildings”. Its “Z”‑shaped support protrudes through the gaps between adjacent tiles and is clamped onto the roof’s longitudinal support beams, avoiding damage to the tiles while ensuring structural strength and waterproofing.

On the installation side, when the 19.49 MW Suzhou curved roof project was commissioned in September, the construction team customised special brackets to match the roof’s curvature, ensuring the stability and safety of the PV panels on the curved steel tile roof.

Adjustability of racking systems continues to improve. Clenergy’s SolarRoof Pro 2.0, exhibited at Intersolar Europe, features a three‑point adjustable tile hook that adapts to different tile thicknesses and timber tolerances, using a uniform tool for assembly. Austria’s AEROCOMPACT released the COMPACTPITCH XT‑R series roof hooks with a foldable design – a single worker can carry 20 hooks onto the roof at once, and the three‑stage adjustment greatly shortens installation time.

4. Non‑Penetrative and Fast‑Installation Construction Techniques

In 2024, the installation philosophy for tile‑roof solar is shifting from “remove tiles and drill holes” to “non‑destructive fast installation”.

Canada’s IntegraRack launched the IR‑T1 TileBallast™, the world’s first non‑penetrative mounting solution that uses a special structural adhesive to turn the roof tiles themselves into ballast. Two built‑in mounting hooks connect the weight of three roof tiles, requiring no tile removal and no roof penetration. The system is UL 2703 certified and comes with a 25‑year limited warranty. It is installed 4 times faster than traditional tile hooks.

In September, Mibet exhibited its clay tile and metal roof racking systems at the RE+ show in North America. Its flat‑roof matrix system uses a non‑penetrative design, lightweight recyclable aluminium, and wind deflectors to reduce weight and roof load. Later in September, Mibet appeared at the Solar & Storage Live UK show, where its clay tile and metal tile PV brackets conform to the roof profile and are easy to maintain – highly appreciated by homeowners.

5. Chinese Companies Accelerate Global Expansion

In the tile‑roof solar racking field, Chinese companies are shifting from “followers” to “leaders”. In 2024 alone, several patents were granted between November and December, confirming this trend:

26 November – Zhongshe Co. obtained a patent for “A support mechanism for building‑integrated photovoltaics”;

10 December – Yinkaitai Energy obtained a patent for “A PV bracket for east‑west sloped steel tile roofs”;

16 December – China Construction Fourth Engineering Bureau obtained a patent for “Photovoltaic roof for low‑carbon buildings”.

Looking at the supplier lists in global Tile Roof Solar Mounting System market reports, Chinese companies already occupy a significant position in this sector. The exhibition activity and patent boom in 2024 suggest that this position will be further strengthened in the future.

6. Market Outlook: From a Multi‑Billion to a Hundred‑Billion Market

The tile‑roof solar market is expanding rapidly. The global solar roof market was worth approximately US$5.61 billion in 2024 and is expected to reach US$10.33 billion by 2030, with a CAGR of 10.55%. The overall PV mounting system market was US$7.33 billion in 2024 and is projected to grow to US$16.15 billion by 2031.

Europe is particularly noteworthy – the UK solar roof tile market was about US$200 million in 2024 and is expected to exceed US$500 million in the next decade. Currently, only one in 20 buildings in the UK uses solar technology. To reach net zero by 2050, almost the entire UK housing stock will need to be decarbonised – meaning tile‑roof solar retrofits have enormous growth potential.

7. Classic Case: When a Roof PV System Meets a Century‑Old Historic Building

Perhaps the best example of the value of integrated tile‑roof solar in 2024 is St Silas Church in North London, UK. As the first historic church in London to install solar roof tiles, in 2010 it used the Nulok system to seamlessly blend natural slate tiles with solar tiles. Looking back after more than a decade, the solar tiles have generated stable power and effectively reduced the carbon footprint. This “preserve historic character + embrace renewable energy” model is becoming a template for green retrofits of historic buildings across the UK.