461 articles
SolarEdge Technologies
SolarEdge Technologies is an Israeli smart energy company founded in Herzliya in 2006 that makes DC-optimized solar inverters, power optimizers, batteries, and EV chargers, shipped to 145 countries.
Solarex
Solarex was an American photovoltaic manufacturer founded in Rockville, Maryland in 1973 by former COMSAT engineers Joseph Lindmayer and Peter Varadi, absorbed into BP Solar in 1999.
SolarPower Europe
SolarPower Europe, formerly the European Photovoltaic Industry Association, is a Brussels-based trade association with more than 300 members, founded in 1985 and renamed in 2015.
SolarWorld
SolarWorld AG was a German photovoltaic manufacturer headquartered in Bonn, founded in 1998, that led trade complaints against Chinese panel imports and filed for insolvency in 2017.
Solatio Energia
Solatio Energia is a Spanish developer and investor in large-scale photovoltaic power plants that has operated in Brazil since around 2009, with over 20 GWp of projects developed and a green hydrogen venture in Piauí.
Solid particle thermal storage
Solid particle thermal storage heats sand-like ceramic or silica particles above 1000 °C and holds them until the heat drives a power cycle or supplies industrial heat.
Soltec
Soltec is a Spanish manufacturer of solar trackers, the motorized structures that rotate photovoltaic panels to follow the sun, founded in 2004 and headquartered in Molina de Segura, Murcia.
Solution processing of perovskite solar cells
Solution processing of perovskite solar cells is the fabrication of perovskite films by depositing dissolved precursors and crystallizing them at low temperature, enabling printing and roll-to-roll production.
SOLV Energy
SOLV Energy is a San Diego-based company providing engineering, procurement, and construction and operations services for utility-scale solar and battery storage projects across the United States.
Solvent engineering for perovskite films
Solvent engineering for perovskite films controls how thin films crystallize by choosing solvents and an antisolvent, such as toluene, during spin coating; it underpins most high-efficiency perovskite solar cells.
Solyndra
Solyndra was a Fremont, California manufacturer of cylindrical CIGS thin-film solar panels, the first recipient of a $535 million DOE loan guarantee before its 2011 bankruptcy.
Sonnedix
Sonnedix is a private global renewable energy company and independent power producer, founded in 2009 and headquartered in London, that owns solar, wind, and battery storage projects.
Spiro-OMeTAD
Spiro-OMeTAD, first described in 1998, is an amorphous organic p-type semiconductor used as the benchmark hole-transporting material in perovskite and solid-state dye-sensitized solar cells, enabling certified devices above 26% efficiency.
Standard Solar
Standard Solar is an American commercial and community solar developer, financier, and asset owner in Rockville, Maryland, founded in 2004 and owned by Brookfield Renewable since 2022.
Sterling & Wilson Renewable Energy
Sterling & Wilson Renewable Energy is an Indian engineering, procurement, and construction contractor for utility-scale solar projects, headquartered in Mumbai and operating across 28 countries.
Stirling solar dish engine
A Stirling solar dish engine is a concentrating solar power system in which a parabolic dish of mirrors focuses sunlight onto a Stirling engine that drives a generator.
String inverter
A string inverter is a device that converts the direct current of one series-wired string of solar panels into alternating current, the standard choice for homes.
Sungevity
Sungevity was an American residential solar company founded in Oakland, California in 2007, a pioneer of pay-as-you-go solar leases that filed for bankruptcy in 2017.
Sungrow (阳光电源)
Sungrow (阳光电源) is a Hefei-based Chinese clean-energy equipment maker, founded in 1997, producing PV inverters, energy storage systems, wind converters, EV charging, and hydrogen equipment.
Suniva
Suniva is an American solar cell manufacturer in Norcross, Georgia, founded in 2007 as a Georgia Tech spinoff, whose 2017 trade petition produced the Section 201 solar tariffs before its 2024 restart.
Sunnova Energy International
Sunnova Energy International was a Houston-based residential solar and energy storage service company that worked through independent dealers, serving over 441,000 customers before filing for Chapter 11 bankruptcy in 2025.
SunPower
SunPower is an American residential solar energy brand and company founded by Richard Swanson in 1985, known for high-efficiency solar cells and panels; the original corporation filed for bankruptcy in 2024.
Sunrun
Sunrun Inc. is an American residential solar and home battery storage company founded in San Francisco in 2007, selling solar energy through long-term leases and power purchase agreements.
Suntech Power
Suntech Power is a Chinese manufacturer of solar cells and modules founded in 2001 in Wuxi, Jiangsu, by Shi Zhengrong; by 2010 it was the world's largest panel maker.
Superstrate configuration
The superstrate configuration is a thin-film solar cell architecture in which light enters through the transparent glass support, contrasting with the substrate configuration that allows opaque supports.
Surface passivation of perovskite solar cells
Surface passivation of perovskite solar cells is the treatment of the perovskite layer's surface to neutralize charge-trapping defects, driving efficiencies from 3.8% in 2009 past 26%.
Swanson's law
Swanson's law is the observation that solar photovoltaic module prices fall about 20% for every doubling of cumulative shipped volume, the solar analog of Moore's law.
Swift Solar
Swift Solar is an American solar technology company founded in November 2017 in San Carlos, California, by six academic researchers, developing perovskite-silicon tandem solar cells and modules.
System strength (electric power)
System strength is a property of an AC power system describing how well the voltage waveform resists disturbances. It is measured by available fault current, often via the short-circuit ratio.
T-type inverter
The T-type inverter, also called the neutral-point-piloted (NPP) inverter, is a three-level power converter topology with four switches per phase leg, widely used in utility-scale photovoltaic plants.