Global Rooftop Solar Photovoltaic Market Size, Share, And Enhanced Productivity By Technology (Thin Film, Crystalline Silicon, Others), By Grid Type (On Grid, Off Grid), By Application (Residential, Commercial, Industrial), By Region and Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends, and Forecast 2025-2034

Report Overview

The Global Rooftop Solar Photovoltaic Market is expected to be worth around USD 121.5 billion by 2034, up from USD 56.8 billion in 2024, and is projected to grow at a CAGR of 7.9% from 2025 to 2034. Asia Pacific records Rooftop Solar Photovoltaic Market at 34.90% worth USD 19.8 Bn.

Rooftop Solar Photovoltaic refers to solar power systems installed on the roofs of homes, offices, factories, and public buildings. These systems use photovoltaic panels to convert sunlight into electricity at the point of use, helping reduce dependence on grid power and lowering energy bills while using otherwise unused roof space.

The Rooftop Solar Photovoltaic Market covers the sales, installation, and operation of these rooftop systems across residential, commercial, and industrial buildings. It also includes related services such as system design, maintenance, and energy management, supporting decentralised and cleaner power generation close to consumers.

Growth factors for rooftop solar include rising electricity costs, grid reliability concerns, and strong policy support for clean energy adoption. Innovation is also accelerating growth, supported by funding such as £1.3 million secured by OPV thin-film start-up Eight19 and €3.5 million invested in a thin-film machine maker, improving efficiency and flexibility.

Demand is increasing as building owners seek energy independence and predictable power costs. Thin-film advancements are strengthening this trend, backed by a $10 million investment to enhance battery efficiency through coatings and $2 million funding for thin-film solar development, making rooftop systems suitable for diverse structures.

Opportunities lie in advanced materials, lightweight panels, and integration with energy storage. Continued capital inflow, including an additional $24 million invested by Invesco funds into thin-film technologies, supports scalable rooftop solutions aligned with long-term energy transition goals.

Key Takeaways

• The Global Rooftop Solar Photovoltaic Market is expected to be worth around USD 121.5 billion by 2034, up from USD 56.8 billion in 2024, and is projected to grow at a CAGR of 7.9% from 2025 to 2034.
• Crystalline Silicon dominated the Rooftop Solar Photovoltaic Market with a strong 79.2% share, driven by efficiency.
• On-grid systems dominated the Rooftop Solar Photovoltaic Market, accounting for a commanding 89.1% share overall.
• Residential applications dominated the Rooftop Solar Photovoltaic Market, securing a notable 48.8% share globally.
• In the Asia Pacific, the Rooftop Solar Photovoltaic Market reaches 34.90% share, USD 19.8 Bn.

By Technology Analysis

In the rooftop solar photovoltaic market, crystalline silicon dominated with a 79.2% share globally.

In 2024, Crystalline Silicon held a dominant market position in the By Technology segment of the Rooftop Solar Photovoltaic Market, with a 79.2% share. This dominance reflects its strong reliability, proven field performance, and wide acceptance across residential, commercial, and industrial rooftop installations. Crystalline silicon technology offers stable power output over long operating lifetimes, making it a preferred choice for building owners seeking predictable energy generation.

Its well-established manufacturing base and standardised installation practices have also supported faster deployment across urban and semi-urban rooftops. In addition, crystalline silicon panels deliver consistent efficiency under varying weather conditions, which improves overall system economics.

These advantages continue to reinforce user confidence and adoption rates, allowing crystalline silicon to remain the leading technology choice within rooftop solar systems where performance certainty and long-term value are key decision factors.

By Grid Type Analysis

In the Rooftop Solar Photovoltaic Market, on-grid systems dominated strongly, holding an 89.1% share.

In 2024, On Grid held a dominant market position in the By Grid Type segment of the Rooftop Solar Photovoltaic Market, with a 89.1% share. This strong position is driven by the ease of integrating rooftop systems with existing utility networks, allowing users to balance generation and consumption efficiently.

On-grid systems enable surplus electricity to be fed back into the grid, improving overall energy utilisation and supporting stable returns on rooftop installations. The absence of large-scale battery requirements also reduces upfront system complexity and maintenance needs, making this setup attractive for urban households and commercial buildings.

Reliable grid connectivity further ensures power availability during low solar periods. These operational advantages continue to strengthen the preference for on-grid rooftop configurations, reinforcing their leadership within the grid type segmentation of the market.

By Application Analysis

In the Rooftop Solar Photovoltaic Market, residential applications dominated demand, capturing 48.8% share.

In 2024, Residential held a dominant market position in the By Application segment of the Rooftop Solar Photovoltaic Market, with a 48.8% share. This leadership reflects the growing adoption of rooftop solar systems by individual homeowners aiming to lower long-term electricity expenses and gain greater control over household energy consumption.

Residential rooftops provide readily available installation space, making solar systems easier to deploy without additional land requirements. Increasing awareness around clean energy usage at the household level has further supported this shift.

Rooftop installations in residential settings also allow users to directly consume the power they generate, improving overall efficiency. These practical and economic benefits continue to drive a strong preference for residential applications, supporting their leading role within the application-based segmentation of the rooftop solar photovoltaic market.

Key Market Segments

By Technology

• Thin Film
• Crystalline Silicon
• Others

By Grid Type

• On Grid
• Off Grid

By Application

• Residential
• Commercial
• Industrial

Driving Factors

Rising Need for Decentralised Clean Energy Solutions

One of the strongest driving factors for the Rooftop Solar Photovoltaic Market is the rising need for decentralised and clean energy generation at the consumer level. Rooftop systems allow homes and buildings to produce electricity where it is used, reducing dependence on centralised power grids and lowering transmission losses. This model improves energy reliability, especially in areas facing frequent power disruptions. Technological innovation is also strengthening this driver.

For example, Lumotive secured $14 million in funding for its liquid crystal beamforming chips, supporting advanced energy and power-related applications. Such innovations encourage smarter, more efficient solar systems that integrate well with modern electrical infrastructure. As electricity demand continues to rise, rooftop solar offers a practical way to meet local energy needs sustainably, making decentralised solar generation a key force behind steady market growth.

Restraining Factors

High Upfront Installation Costs Limit Wider Adoption

A major restraining factor for the Rooftop Solar Photovoltaic Market is the high upfront cost linked with system purchase and installation. Many households and small building owners find the initial expense challenging, even though long-term savings are possible. Costs related to panels, inverters, mounting structures, and professional installation can delay decision-making, especially in price-sensitive markets.

Advanced material production also requires heavy capital support, as seen when HSC received $325 million in CHIPS Act funding for a polysilicon chip plant in Michigan. This highlights how capital-intensive solar-related manufacturing remains. Until equipment and installation costs reduce further or financing access improves, upfront investment concerns are likely to restrain faster rooftop solar adoption despite strong interest in clean and self-generated energy.

Growth Opportunity

Advanced Solar Manufacturing Boosts Rooftop Adoption Potential

A major growth opportunity in the Rooftop Solar Photovoltaic Market lies in the expansion of advanced solar cell manufacturing. Improvements in cell efficiency and production quality make rooftop systems more attractive for homes and buildings with limited roof space.

Local manufacturing also helps reduce supply delays and improves system affordability over time. This opportunity is strengthened by focused financial support, such as Art-PV India receiving a $10 million grant for advanced solar cell manufacturing.

Such investments encourage innovation, workforce development, and faster technology scaling. As manufacturing capabilities improve, rooftop solar systems can deliver higher output using fewer panels, making installations easier and more cost-effective. This creates strong potential for wider rooftop adoption, especially in residential and small commercial settings where efficient use of space and long-term reliability matter most.

Latest Trends

Integrated Supply Chain Focus Enhances Rooftop Solar Growth

A key latest trend in the Rooftop Solar Photovoltaic Market is the growing focus on strengthening the entire solar supply chain, from raw materials to final installation. Better coordination across manufacturing, logistics, and system deployment is helping reduce delays and improve overall project quality. This trend supports stable equipment availability and smoother rooftop installations for households and businesses.

Public support is accelerating this shift, highlighted by $40 million in U.S. Department of Energy funding to boost the solar supply chain lifecycle. Such initiatives improve resilience, encourage local sourcing, and support faster technology adoption.

As supply chains become more efficient and transparent, rooftop solar projects benefit from shorter timelines and improved reliability, making solar adoption simpler and more dependable for end users.

Regional Analysis

Asia Pacific dominates the Rooftop Solar Photovoltaic Market with a 34.90% share of USD 19.8 Bn.

Asia Pacific dominates the Rooftop Solar Photovoltaic Market, holding a leading position with a 34.90% share valued at USD 19.8 Bn. This dominance is supported by rapid urbanisation, dense residential housing, and strong rooftop suitability across major economies. High electricity demand growth and widespread rooftop availability across residential and commercial buildings continue to support steady deployment. The region’s strong installation base and expanding urban infrastructure reinforce its leadership position in rooftop solar adoption.

North America represents a mature rooftop solar market driven by widespread residential installations and strong awareness of clean energy benefits. Rooftop systems are widely used across homes and commercial buildings to reduce dependence on conventional grid power. Stable policy environments and advanced installation practices support consistent regional demand and long-term system reliability.

Europe shows steady rooftop solar adoption due to dense urban housing, sustainability-focused energy planning, and building-level power generation practices. Rooftop solar is commonly integrated into residential and commercial structures, supporting local energy use and reducing grid pressure across urban centres.

Middle East & Africa are emerging gradually, supported by strong solar irradiation and growing interest in distributed power generation. Rooftop solar helps manage electricity needs in areas facing grid constraints and rising urban energy demand.

Latin America reflects growing rooftop solar activity, particularly in urban residential areas. Increasing focus on energy independence and rooftop space utilisation continues to support gradual market expansion across the region.

Key Regions and Countries

• North America
  • US
  • Canada
• Europe
  • Germany
  • France
  • The UK
  • Spain
  • Italy
  • Rest of Europe
• Asia Pacific
  • China
  • Japan
  • South Korea
  • India
  • Australia
  • Rest of APAC
• Latin America
  • Brazil
  • Mexico
  • Rest of Latin America
• Middle East & Africa
  • GCC
  • South Africa
  • Rest of MEA

Key Players Analysis

3M plays an important supporting role in the global Rooftop Solar Photovoltaic Market through its strong materials science capabilities. The company provides advanced solutions such as protective films, adhesives, and electrical components that enhance panel durability and rooftop system reliability. In 2024, its focus on improving weather resistance, thermal management, and installation safety aligns well with rooftop solar needs, where long-term performance and reduced maintenance are critical for residential and commercial users.

Philips N.V. contributes to the rooftop solar ecosystem through its expertise in energy-efficient technologies, electronics, and smart systems. Its strengths in connected solutions and power management complement rooftop solar adoption, particularly in smart homes and buildings. In 2024, Philips’ emphasis on energy optimisation and system integration supports better use of rooftop-generated electricity, helping users manage consumption more efficiently alongside growing distributed solar installations.

Pentair PLC supports rooftop solar development by offering fluid handling, water management, and energy-related solutions relevant to solar-integrated buildings. The company’s technologies help improve overall building efficiency, especially where rooftop solar is combined with water systems and sustainable infrastructure. In 2024, Pentair’s focus on resource efficiency and resilient building solutions strengthens its position in environments where rooftop solar forms part of a broader clean energy and sustainability strategy.

Top Key Players in the Market

• 3M
• Philips N.V.
• Pentair PLC
• Panasonic
• Unilever PLC
• LG Electronics
• EcoWater Systems
• A.O. Smith
• Cilligan International
• Kinetico Incorporated

Recent Developments

• In December 2024, Panasonic installed a rooftop-based solar PV and energy generation system at its air-conditioner factory in Malaysia (PAPAMY). The system has a capacity of 5.2 MW, uses rooftop-mounted panels over 31,786 m², and is expected to generate about 5,900 MWh per year, covering ~20 % of the factory’s electricity needs and reducing CO₂ emissions by roughly 3,912 tonnes annually.
• In October 2024, Philips secured a long-term renewable electricity agreement for its Suzhou, China, facility: the factory will receive about 16 GWh per year of renewable electricity from a fishery-solar plant, reducing around 9,200 tons of CO₂ annually.

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