Global Rooftop Solar PV Market

Rooftop Solar PV Market Summary

The Global Rooftop Solar PV Market Size Was Estimated at USD 61.4 Billion in 2024 and is Projected to Reach USD 116.6 Billion by 2035, Growing at a CAGR of 6% from 2025 to 2035. Government subsidies, rising electricity rates, increased environmental consciousness, the need for energy independence, particularly in the residential and commercial sectors globally, and the expanding demand for clean energy are all driving growth in the rooftop solar PV industry.

Key Regional and Segment-Wise Insights

• In 2024, the rooftop solar PV market in the Asia Pacific region led globally and had the biggest revenue share, of 30.2%.
• In 2024, the thin film segment had the biggest revenue share of 40.58% and dominated the market by technology.
• In 2024, the on-grid segment had the highest revenue share at 84.4% and led the market by grid type.

Global Market Forecast and Revenue Outlook

• 2024 Market Size: USD 61.4 Billion
• 2035 Projected Market Size: USD 116.6 Billion
• CAGR (2025-2035): 6%
• Asia Pacific: Largest market in 2024
• Middle East & Africa: Fastest growing market

Rooftop solar photovoltaics (PV) markets exist for solar panel installation on residential, commercial, and industrial rooftops to generate electricity directly from sunlight. The systems provide an alternative to fossil fuels and traditional grid power by delivering sustainable, clean energy through decentralised power generation. The industry continues to grow because traditional power sources become more expensive while people become more aware of environmental problems and want to control their own energy needs. The adoption of rooftop solar systems in emerging economies receives support from urban development and rising population numbers, and growing energy requirements. The commercial and industrial sectors have adopted rooftop solar PV systems at an increasing rate because these systems help them save money while reaching their environmental targets.

Rooftop solar PV systems have become more affordable and efficient because of technological advancements. The development of energy storage systems, inverter technologies, and solar panel materials has boosted both the efficiency and expansion potential of rooftop installations. The combination of smart monitoring and Internet of Things-based solutions enables organisations to track performance in real time while achieving better energy management. Solar energy adoption receives support through governmental programs which establish net metering systems. They provide tax incentives and financial aid, and affordable loan options. Urban planning programs that promote renewable energy use and green buildings are creating new market demand for these environmentally friendly solutions. The rooftop solar PV industry expands because of multiple elements which function together to speed up its worldwide growth.

Technology Insights

The thin film segment led the global rooftop solar PV market in 2024 by holding the largest revenue share of 40.58%. The segment dominates the market because it provides various advantages compared to traditional crystalline silicon panels through its lightweight construction, flexible design, and better performance under low-light and high-temperature conditions. Thin film solar panels serve residential and commercial needs effectively because they offer easy installation across different roof types, which include structures that cannot handle heavy loads. The technology has become more popular because it looks good when integrated into building surfaces. It costs less to produce. Thin film solutions maintain their position as the leading rooftop PV technology worldwide because they provide affordable solar solutions for urban and industrial spaces while fulfilling the growing need for space-efficient solar systems.

The crystalline silicon segment of the rooftop solar PV market is expected to grow significantly through high energy conversion efficiency, long operational lifespan, and extensive market penetration. The technology maintains its leading position because it provides reliable operation in different weather conditions. The system supports both monocrystalline and polycrystalline panel types. The competitive position of crystalline silicon in solar technology has improved because scientists have developed thinner and more efficient modules that now cost less to produce. Its adaptability to rooftop installations in both residential and commercial settings keeps driving market expansion. Furthermore, crystalline silicon is positioned as a major driver of future rooftop solar PV expansion due to growing investments in solar infrastructure. Global government incentives are speeding up adoption.

Grid Type Insights

The on-grid segment led the rooftop solar PV market worldwide by holding the largest revenue share of 84.4% in 2024. The main reason for this control is that on-grid systems dominate commercial and urban areas because utility grid connections are straightforward to obtain in these locations. On-grid rooftop solar systems enable customers to generate their own solar power while sending surplus energy back to the grid through net metering. This results in substantial reductions of their electricity expenses. The absence of batteries in these systems leads to lower installation and maintenance costs, which makes them more budget-friendly. The adoption of on-grid rooftop solar PV systems has grown because governments in developed and developing countries support net metering, feed-in tariffs, and provide financial incentives.

The off-grid segment of the rooftop solar PV market will experience the fastest CAGR growth during the forecast period because rural and distant areas need reliable electricity from off-grid systems. Remote areas that lack traditional power sources can gain from off-grid solutions, which operate independently through solar panels and battery storage systems. Off-grid solar solutions become more practical because developing countries now get better energy access programs, battery technology improves, and costs go down. The off-grid segment drives major growth in the rooftop solar PV industry because people want to become energy independent and protect themselves from power outages and natural disasters.

Regional Insights

The Asia Pacific rooftop solar PV market dominated the worldwide market by holding the largest revenue share of 30.2% in 2024. The leadership position exists because of three main factors, which include rapid urbanisation, growing power needs, and rising environmental awareness in China, India, Japan, and Australia. The government supports renewable energy through programs which provide tax incentives, subsidies, and net metering rules to boost rooftop solar system installations on residential and commercial properties. The prices of solar panels have dropped while solar technology has advanced. This makes rooftop systems more affordable and efficient. The increasing focus on sustainable development and energy security in the region drives market growth, which positions the Asia Pacific as a leading worldwide hub for rooftop solar PV adoption.

Middle East & Africa Rooftop Solar PV Market Trends

The Middle East and Africa rooftop solar PV market is expected to grow at the fastest CAGR during the forecast period because the region actively promotes renewable energy while its energy needs grow, and it has abundant solar power potential. Saudi Arabia, the United Arab Emirates, South Africa, and Egypt direct their funds toward solar infrastructure projects to decrease their dependence on fossil fuels. The government supports rooftop solar growth through its backing of legislation and financial incentives, and its commitment to renewable energy targets. This drives both residential and commercial sectors to adopt these systems. Solar power systems that operate independently from the grid and in combination with other energy sources receive support because power costs remain high and electrical interruptions persist in particular areas. The market will experience rapid expansion because of ongoing technological progress and decreasing equipment prices.

North America Rooftop Solar PV Market Trends

The North American rooftop solar PV market will experience significant growth during the forecast period because sustainable energy solutions continue to expand their reach across commercial, industrial, and residential sectors. The United States and Canada direct their funds toward solar infrastructure development because their governments provide tax incentives, which create favourable conditions for renewable energy expansion. The market for rooftop solar systems expands because of rising power expenses, together with increasing environmental awareness and corporate sustainability targets. The rooftop solar PV market gains appeal and accessibility because of technological progress, which improves solar panel efficiency, battery storage, and intelligent energy management systems. The market will grow through net metering expansion and green building initiatives. This will position North America as a leading force in the global rooftop solar PV market.

Key Rooftop Solar PV Companies:

The following are the leading companies in the rooftop solar PV market. These companies collectively hold the largest market share and dictate industry trends.

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

Recent Developments

• In January 2025, LG Energy Solutions and Aptera Motors partnered to supply 2170 cylindrical batteries that encourage solar-powered transportation in the United States by advancing solar EV innovation and sustainable mobility.
• In January 2025, A.O. Smith declared that on January 30, 2025, a conference call would be held to release the financial results for the fourth quarter of 2024.

Market Segment

This study forecasts revenue at global, regional, and country levels from 2020 to 2035. Decision Advisors has segmented the rooftop solar PV market based on the below-mentioned segments:  

Global Rooftop Solar PV Market, By Technology

• Thin Film
• Crystalline Silicon
• Others

Global Rooftop Solar PV Market, By Grid Type

• On Grid
• Off Grid

Global Rooftop Solar PV Market, By Regional Analysis

• North America
  • US
  • Canada
  • Mexico
• Europe
  • Germany
  • UK
  • France
  • Italy
  • Spain
  • Russia
  • Rest of Europe
• Asia Pacific
  • China
  • Japan
  • India
  • South Korea
  • Australia
  • Rest of Asia Pacific
• South America
  • Brazil
  • Argentina
  • Rest of South America
• Middle East & Africa
  • UAE
  • Saudi Arabia
  • Qatar
  • South Africa
  • Rest of the Middle East & Africa