SolarEdge Technologies, Inc. (SEDG)

SolarEdge makes the electronics that sit between solar panels and the grid. Its core product is a two-part system: power optimizers, small converters fixed to each solar panel that keep every panel at its best output and cut its voltage to a safe 1 volt unless a paired inverter signals otherwise, and inverters, designed to work only with its optimizers, which turn the panels' direct current into the alternating current a building uses. Around that core it sells batteries, EV chargers, a communication device that links each system to its cloud monitoring platform, and energy management software called SolarEdge ONE, for homes, businesses and small utility-scale solar sites. 232425262728

How it operates

SolarEdge makes the electronics that sit between solar panels and the grid. Its core product is a two-part system: power optimizers, small converters fixed to each solar panel that keep every panel at its best output and cut its voltage to a safe 1 volt unless a paired inverter signals otherwise, and inverters, designed to work only with its optimizers, which turn the panels' direct current into the alternating current a building uses. Around that core it sells batteries, EV chargers, a communication device that links each system to its cloud monitoring platform, and energy management software called SolarEdge ONE, for homes, businesses and small utility-scale solar sites. 232425262728

It sells mostly through middlemen: indirectly to thousands of installers through large distributors and electrical wholesalers, and directly to large installers and EPC firms, the contractors that engineer, buy for and build solar projects. One wholesaler, Consolidated Electrical Distributors, took 18.6% of 2025 revenue, and the three largest customers together took 35.8%; three customers also held 45.5% of what customers owed the company at year end. Its agreements with some of its largest customers carry no long-term purchase commitments and can be cancelled on short notice. By its count, over 93,000 installers have put in SolarEdge systems. 293031323334

The United States has become its main market. By the company's geographic tagging, the United States brought in 718.2 million dollars in 2025, 60.6% of revenue and up 89.2% on the year, against 42.1% of revenue in 2024. Europe brought in 317.6 million, 26.8%, down 1.6%, and the rest of the world 148.6 million, 12.5%, down 25.4%. 3536

SolarEdge owns little of its manufacturing. Two contract manufacturers, Jabil and Flex, build its products, and because the US Inflation Reduction Act rewards local production, the vast majority is now made in the United States: inverters in Texas, optimizers and inverters in Florida and batteries in Utah. It stopped manufacturing in China, Mexico and Hungary. A minor share is still made at its own plant in the north of Israel, Sella 1, and a third party makes some in Vietnam. The company owns some of the automated optimizer lines and its own end-of-line test equipment. Certain key parts still come from suppliers in China, and some from limited or single sources. 37383940414243

The specifics

Its edge, as it describes it, is electronics at every panel. Each optimizer tracks its own panel's best operating point, so shade or a mismatched panel does not drag down the rest of the string, and a custom chip, an ASIC, inside each optimizer does the control work, keeping the parts count low. Optimizers talk to the inverter over the existing DC wiring with its own power line communications. Optimizers carry a 25-year warranty and most inverters 12 years, extendable to 20 or 25. It holds 518 issued patents and 219 pending applications, expiring between 2026 and 2044, most of them on DC power optimization and conversion, monitoring and batteries. 4445464748495051

It names its rivals. For homes: Sungrow, Huawei, Sigenergy and SMA Solar, among other mostly Chinese inverter makers, and in North America Tesla with string inverters and the microinverter maker Enphase Energy. For commercial and utility systems: SMA, Sungrow, Huawei, Sigenergy and Chint Power Systems America. It also notes new low-cost Asian entrants making panel-level electronics like its own. 52535455

US tax law shapes the business. The Inflation Reduction Act of 2022 gave manufacturers a credit under Section 45X for eligible components made in the United States, and SolarEdge sold a significant part of the credits it earned in 2024 and 2025. H.R.1, enacted on July 4, 2025, left that credit's term alone but ended the Section 25D credit for homeowners at the end of 2025, cut the end date of the investment and production credits used by third-party owners and commercial developers from 2034 to 2027, and raised the domestic content a project needs for bonus credits, to 50% from January 2026. It also added limits on parts from what the law calls foreign entities of concern, tightening from 2026. 5657585960616263

SolarEdge was incorporated in Delaware in 2006 and is run from Herziliya Pituach, Israel. Recent years have been a retreat to its core: it dropped its e-Mobility business, whose sole customer was Stellantis, in October 2023; announced in November 2024 that it would close its energy storage business, which made batteries mainly at its Sella 2 plant in South Korea, and sold that last cell factory on September 4, 2025; and divested its PV tracker business in April 2025. The other way, it bought Wevo, software for sites with many EV chargers, in April 2024. Shareholder suits filed since 2023 are pending; the claims still standing concern statements calling inventory levels low and statements about demand in Europe. 6465666768697071

What drives growth, line by line

Revenue rose 31.4% in 2025 to 1.2 billion dollars, after falling 69.7% the year before, from 3.0 billion in 2023 to 901.5 million. The filing credits more normal inventory levels at distributors in both the United States and Europe, despite what it calls a prolonged softness in demand: more inverters and optimizers sold added 261.1 million dollars and more batteries 94.9 million, while the end of the energy storage business took away 33.5 million and fewer ancillary solar products 30.4 million. Gross margin swung to a 16.6% profit from a 97.3% loss in 2024, the year of heavy inventory write-downs; without the US manufacturing credits, the filing says, 2025 would also have been a gross loss. 727374757677

Optimizers. The largest line: 489.9 million dollars, 41.4% of 2025 revenue, up 55.6%, and a rising share, from 30.3% in 2023. The company recognized revenue on about 10.6 million optimizers in 2025, up 59.1% from about 6.6 million. 357879

Inverters. 333.8 million dollars, 28.2% of revenue, up 34.8%, on about 349.6 thousand inverters against 245.7 thousand. In 2023 inverters had brought in 46.2% of revenue, more than optimizers' 30.3%. At the end of 2025 the company moved its inverters to a single SKU, meaning one model shipped everywhere and set to its power rating in the field. 3580817882

Batteries for Pv Applications. 285.4 million dollars, 24.1% of revenue, up 49.8%. Battery capacity recognized as revenue rose 61.3% to about 897.4 megawatt hours. The filing says more batteries were sold mainly in Europe and the United States, and believes a rising share of solar installations adding a battery lifted demand. 35837384

Other Products. 52.8 million dollars, 4.5% of revenue, down 41.8%. The filing does not describe this line on its own; among the reasons for the year's revenue change it lists a 30.4 million dollar drop in ancillary solar products sold. 3573

Energy Storage Systems. 16.4 million dollars, 1.4% of revenue, down 67.1%: the business being closed. The line's fall of 33.5 million dollars is the decrease the filing puts down to the discontinuation of its energy storage business. 3573

Communication. 6.0 million dollars, 0.5% of revenue, up 11.2% on the year; the filing's results discussion does not mention it. 35

Mobility Components and Telematics. 167 thousand dollars, down 93.0% from 2.4 million: what is left of the e-Mobility business, which the company decided to discontinue in October 2023 and whose sole customer was Stellantis. 3566

What comes next, in the company's own words: its next-generation home line, SolarEdge Nexis, launched with initial units delivered toward the end of 2025, and it plans to begin offering Nexis inverters for three-phase homes (8 to 20 kW) and single-phase homes (3.8 to 13 kW). It expects the US manufacturing credits to be phased out by the end of 2031, and warns that the end of the homeowners' Section 25D credit may weigh on demand. 85868788

The read's section on the people who run it is on the People tab.

What the desk infers Inferred

1. Inferred

   SolarEdge's return to a gross profit in 2025 rests on US manufacturing tax credits rather than on what its products earn on their own; moving production to Texas, Florida and Utah is what earns those credits, and selling them is part of how it raises cash.

   Because

   • The filing says that without the manufacturing credits its 2025 gross profit would have been a gross loss. 77
   • It makes the vast majority of its products in the United States, citing the Inflation Reduction Act's rewards for local manufacturing. 3839
   • It sold a significant part of the credits it generated in 2024 and 2025. 57
   • It expects the credits to be phased out by the end of 2031. 87
   Confidence 85 of 100Wrong if A year in which the company reports a gross profit that stays positive with the manufacturing credits excluded.
2. Inferred

   The collapse of 2024 was above all European, a matter of stock already sitting with European distributors and weaker demand there, and the recovery of 2025 was carried by the United States.

   Because

   • Europe brought in nearly two billion dollars in 2023, then 322.6 million in 2024 and 317.6 million in 2025. 8935
   • The United States rose to 718.2 million dollars in 2025 from 379.6 million, while Europe fell 1.6%. 35
   • The filing credits the 2025 rise in sales to more normal inventory levels in the channel in both the United States and Europe. 74
   • The shareholder claims still standing concern statements calling inventory levels low and statements about demand in Europe. 71
   Confidence 60 of 100Wrong if The company's own account of 2024 putting the European decline mainly down to something else, such as lost share to a named rival, with distributor stocks and European demand little changed.
3. Inferred

   Consolidated Electrical Distributors, the one customer above a tenth of revenue, most likely buys chiefly for the US market, so the US recovery runs through very few hands.

   Because

   • Its share of revenue was 18.6% in 2025, while the largest customer in 2024 took 12.9%. 90
   • Growth in 2025 came only from the United States: up 89.2%, while Europe fell 1.6% and the rest of the world 25.4%. 35
   • The three largest customers took 35.8% of revenue and three customers held 45.5% of trade receivables. 3132
   • The company sells mainly through large distributors and electrical wholesalers, with no long-term purchase commitments from some of the largest. 2933
   Confidence 55 of 100Wrong if A filing showing that most of Consolidated Electrical Distributors' purchases were for markets outside the United States.