Why is solar the largest application?
Every solar PV system requires inverters, from microinverters on individual panels to central inverters at utility-scale plants. The IEA reports that solar capacity grew about 12% in 2025 to roughly 2.8 TW. Utility-scale plants mainly use central and string inverters, while rooftop systems use string, hybrid, and microinverters. Replacement demand also grows because inverters typically need replacing during a solar plant’s life. Repowering of older solar plants with new inverters is also becoming a meaningful source of demand. Utility, commercial, and residential solar projects each need different inverter designs, so suppliers offer central, string, and microinverter product lines.

How does battery storage affect demand?
Battery energy storage systems at grid scale, in commercial buildings, and in homes need bidirectional inverters or power conversion systems to charge and discharge batteries. Hybrid inverters combine solar and battery functions in one unit and are popular in residential systems. Grid operators increasingly use storage for frequency regulation, peak shifting, and renewable integration, which requires advanced grid-forming inverters. Grid-forming inverters that can stabilize weak grids are increasingly required in new storage tenders.

What role do electric vehicles play?
Electric vehicles use traction inverters to convert battery power into alternating current for the motor, and their efficiency directly affects driving range. Hybrid, plug-in hybrid, and fuel cell vehicles also need inverters. Rising EV production is a major source of demand for high-power inverters and for silicon carbide power modules. Onboard chargers and DC-DC converters add further power electronics content to each vehicle.

How are wide-bandgap semiconductors changing inverters?
Silicon carbide (SiC) and gallium nitride (GaN) devices switch faster and handle higher voltages and temperatures than silicon, reducing losses and allowing smaller, lighter inverters. SiC is widely used in EV traction inverters and high-power solar and storage inverters, while GaN is spreading in smaller, high-frequency applications. As costs fall, wide-bandgap inverters are expected to gain share across applications. Several automakers have moved their premium models to 800-volt platforms that rely on SiC devices.

How are leading suppliers performing?
Results vary by segment. SMA Solar reported first-half 2026 sales of EUR 686.6 million, a return to profit, and raised its full-year guidance, while Enphase Energy shipped about 1.42 million microinverters in the third quarter of 2026 along with 129.9 MWh of batteries. Utility-scale and storage inverters have been stronger than residential products in some markets. Supplier performance shows that demand varies widely by region and segment. Results differ widely by region, with utility-scale suppliers generally performing better than residential specialists during the recent period.

How do industrial inverters fit in?
Variable frequency drives and motor drive inverters control the speed of motors in pumps, fans, compressors, and machinery, saving energy and improving process control. They are widely used in manufacturing, water, oil and gas, mining, and HVAC. Industrial power conversion and UPS inverters provide backup power and power quality for factories, hospitals, and data centers. Industrial drives can cut motor energy use significantly in pumps and fans.

Why are data centers important?
Data centers need uninterruptible power supplies, battery systems, and increasingly on-site solar and storage. AI computing is increasing power demand, and developers are exploring new architectures, such as high-voltage DC distribution, that rely on advanced power electronics. Enphase, for example, is developing a solid-state transformer for AI data centers. Power electronics suppliers are developing new products for data center power architectures.

How are inverters sold?
Large utilities, EPC contractors, OEMs, and project developers buy directly from manufacturers. Distributors, wholesalers, dealers, and installers serve residential and small commercial markets. System integrators combine inverters with batteries and controls, and online channels are growing for small off-grid and backup products. Installer networks and after-sales service are important for residential brands.

What challenges face the market?
Price competition from Chinese manufacturers, trade tariffs, and policy changes affect pricing and supply chains. Residential solar demand has been volatile in Europe and the United States. Grid codes and cybersecurity requirements are becoming stricter, requiring investment in new features and certifications. Some countries are restricting inverters from certain suppliers because of cybersecurity concerns. Trade measures and local content rules also shape where inverters are assembled and which suppliers can compete in each market.

Which inverter market segments are growing fastest?
Battery energy storage and hybrid inverters; vehicle traction inverters; silicon carbide-based inverters; utility-scale solar and grid infrastructure applications; and three-phase inverters above 100 kW are the fastest-growing segments. Microinverters and power optimizers remain important in residential rooftop markets.