Table of Contents
Overview
New York, NY – August 18, 2025 – The Global Single Phase String Inverters Market is projected to grow from USD 2.7 billion in 2024 to approximately USD 4.1 billion by 2034, achieving a CAGR of 4.2% during the forecast period from 2025 to 2034. In 2024, North America led the market, capturing a 44.7% share and generating USD 1.2 billion in revenue.
The single-phase string inverters market has experienced robust growth, fueled by the rising adoption of residential and small commercial photovoltaic (PV) systems. These inverters are critical for grid-connected solar setups, converting direct current (DC) from solar panels into alternating current (AC) suitable for household and light commercial use. Their compact design, cost-effectiveness, and high efficiency make them ideal for decentralized solar power generation, particularly in regions with significant residential solar adoption.
According to the International Renewable Energy Agency (IRENA), global solar capacity reached approximately 1,200 gigawatts (GW) by the end of 2023, with residential installations comprising about 35% of this total. The increasing integration of renewable energy into distributed systems has driven demand for efficient and reliable inverters. Technological advancements, such as conversion efficiencies exceeding 98%, enhanced thermal management, and smart grid compatibility, have further boosted the appeal of single-phase string inverters.
Government policies have been instrumental in market growth. In the U.S., the Department of Energy’s Solar Energy Technologies Office (SETO) allocated over USD 140 million between 2021 and 2024 to advance solar inverter technology, focusing on improving reliability and reducing costs. In Europe, the EU’s Renewable Energy Directive targets 40% renewable energy consumption, promoting subsidies for residential solar installations that rely heavily on single-phase string inverters. Similarly, India’s Ministry of New and Renewable Energy (MNRE) aims for 280 GW of solar capacity, with rooftop solar schemes driving inverter demand.
The International Energy Agency (IEA) projects a 12% annual growth rate for solar PV capacity in residential and commercial sectors, ensuring sustained demand for single-phase string inverters. Additionally, expanding electrification in rural and off-grid areas, particularly in Asia-Pacific and Latin America, is expected to create new market opportunities as governments promote decentralized renewable energy solutions. These factors position the single-phase string inverters market for continued growth.
Key Takeaways
- Single Phase String Inverters Market size is expected to be worth around USD 4.1 Billion by 2034, from USD 2.7 Billion in 2024, growing at a CAGR of 4.2%.
- On-grid connectivity held a dominant market position in the single-string Inverters segment, capturing more than 77.3% share.
- The 1 kW to 3 kW power rating segment held a dominant position in the Single Phase String Inverters market, capturing more than 44.8% share.
- The residential segment held a dominant position in the Single Phase String Inverters market, capturing more than 78.1% share.
- North America emerged as the dominant region in the Single Phase String Inverter market, capturing a substantial 44.7% share, equivalent to approximately USD 1.2 billion.
➤ Curious about the content? Explore a sample copy of this report – https://market.us/report/global-single-phase-string-inverters-market/request-sample/
Report Scope
| Market Value (2024) | USD 2.7 Billion |
| Forecast Revenue (2034) | USD 4.1 Billion |
| CAGR (2025-2034) | 4.2% |
| Segments Covered | By Connectivity (Standalone, On Grid), By Power Rating (Below 1 kW, 1 kW to 3 kW, 3 kW to 5 kW, Above 5 kW), By Application (Residential, Commercial) |
| Competitive Landscape | APsystems, Canadian Solar, Enphase Energy, Fronius International, Huawei Technologies, INVTSolar, NingBo Deye Inverter Technology, SolarEdge Technologies, SUNGROW, UTL Solar |
➤ Directly purchase a copy of the report – https://market.us/purchase-report/?report_id=154531
Key Market Segments
Connectivity Analysis
In 2024, on-grid connectivity commanded a leading 77.3% share of the single-phase string inverters market, driven by the widespread use of grid-tied solar systems. These systems, popular for their ability to feed surplus electricity back to the utility grid, are increasingly adopted in residential and commercial solar installations due to their cost-effectiveness and efficient energy management.
Supportive government policies, such as net metering and incentives for grid-connected solar projects, have fueled this segment’s growth. On-grid inverters are poised to maintain their dominance, bolstered by expanding rooftop solar deployments and advancements in smart grid technologies that enhance grid synchronization and energy export capabilities. This trend underscores the critical role of on-grid connectivity in facilitating seamless solar energy integration for consumers.
Power Rating Analysis
The 1 kW to 3 kW power rating segment led the single-phase string inverters market in 2024, holding a 44.8% share. This segment’s prominence stems from its suitability for residential solar systems, where it meets typical household energy demands while balancing cost and performance. The rise in rooftop solar installations, driven by growing interest in clean energy and supported by government incentives for small-scale solar projects, has boosted demand for these inverters.
In 2025, the 1 kW to 3 kW segment is expected to retain its leadership, propelled by continued policy support and increasing adoption of self-consumption models that prioritize efficient energy conversion for smaller power needs. This segment’s dominance highlights its key role in advancing decentralized solar energy adoption worldwide.
Application Analysis
In 2024, the residential sector dominated the single-phase string inverters market, capturing a 78.1% share. This leadership is driven by the rapid growth of rooftop solar installations in households globally, fueled by government subsidies and incentives promoting clean energy adoption. Single-phase string inverters are favored in residential applications for their affordability, ease of installation, and compatibility with household energy requirements.
Rising electricity costs and growing awareness of sustainable energy solutions have further accelerated demand. Looking toward 2025, the residential segment is expected to maintain its dominance, supported by ongoing urban and suburban rooftop solar expansion and advancements in inverter technology that enhance energy efficiency and smart home integration. This trend emphasizes the residential sector’s pivotal role in driving the global growth of single-phase string inverters.
Regional Analysis
In 2024, North America led the single-phase string inverter market with a 44.7% share, valued at approximately USD 1.2 billion, with the United States accounting for 76.3% of the region’s market. This dominance is driven by strong solar adoption policies, notably the Inflation Reduction Act (IRA), which extended the Investment Tax Credit (ITC), encouraging investment in renewable energy and grid modernization.
The region saw significant growth in residential solar, with over 4 million U.S. homes equipped with solar PV systems by mid-2024, reflecting consumer demand for energy independence and clean energy solutions. The widespread use of single-phase string inverters in these installations highlights their cost-effectiveness and suitability for household energy needs, solidifying North America’s leadership in the market.
Top Use Cases
- Residential Rooftop Solar Systems: Single-phase string inverters are perfect for home solar setups, converting DC power from solar panels to AC for household use. They’re cost-effective, easy to install, and ideal for home systems, supporting energy savings and grid integration with high efficiency.
- Small Commercial Solar Installations: These inverters suit small businesses like cafes or retail shops with moderate energy needs. Offering affordable and efficient solar power conversion, making them a reliable choice for reducing electricity costs in small-scale commercial settings.
- Rural Electrification Projects: In rural areas with limited grid access, single-phase string inverters enable off-grid or hybrid solar systems. They provide reliable power for homes or small community setups, supporting energy independence and sustainable development in remote locations.
- Smart Home Energy Management: Advanced single-phase string inverters with smart monitoring integrate with home energy systems. They optimize energy use through real-time data tracking via Wi-Fi or apps, enhancing efficiency and enabling homeowners to manage solar power effectively.
- Solar-Powered Water Pumping Systems: Single-phase string inverters are used in solar-powered water pumps for agriculture or small communities. They convert solar energy to power pumps efficiently, supporting irrigation and water supply in areas with ample sunlight, reducing reliance on costly fuel.
Recent Developments
1. APsystems
APsystems has launched the DS3 series of single-phase microinverters, which can pair with dual-module configurations for higher efficiency. The company emphasizes improved energy harvest and enhanced monitoring via its APsmart platform. APsystems is also focusing on lightweight, plug-and-play designs for residential solar installations. Their inverters now support higher power outputs and broader voltage ranges.
2. Canadian Solar
Canadian Solar’s EP Cube and CSI-7kW single-phase string inverters feature high efficiency and advanced safety mechanisms. The company has integrated ShadeFix Optimization and AFCI protection to enhance performance. Canadian Solar also introduced Energy Storage Compatibility, allowing seamless integration with battery systems. Their inverters now support smart grid functions and remote firmware updates.
3. Enphase Energy
Enphase released the IQ8 Series microinverters, which enable Sunlight Backup functionality without a battery. Their single-phase systems now support dynamic grid support and advanced load management. Enphase also introduced Enphase Installer Network (EIN), improving installation efficiency. The company focuses on grid-agnostic solutions and enhanced monitoring via the Enphase App.
4. Fronius International
Fronius launched the GEN24 Plus single-phase hybrid inverter with integrated battery-ready technology. It features SnapINverter design for easy installation and Fronius Solar.web for real-time monitoring. The inverters now support reactive power control and peak shaving. Fronius emphasizes durability and high efficiency in its latest models.
5. Huawei Technologies
Huawei introduced the SUN2000-5/6/8/10KTL-M1 single-phase inverters with Smart String Optimization for better shade tolerance. They feature AFCI 2.0 and PID recovery for enhanced safety. Huawei’s FusionSolar App provides AI-driven monitoring. The company also integrated Grid Support Functions for better compliance with international standards.
Conclusion
Single-phase string inverters are vital for driving solar energy adoption, particularly in residential and small commercial markets. Their affordability, high efficiency, and ease of installation make them a top choice for decentralized solar systems. With growing demand for renewable energy and supportive government policies, these inverters will continue to play a key role in sustainable energy solutions.
Discuss Your Needs With Our Analyst
Please share your requirements with more details so our analyst can check if they can solve your problem(s)
