461 articles
T80 lifetime
T80 lifetime is the time a solar cell takes to fall to 80% of its initial power conversion efficiency, the standard stability measure for perovskite cells.
Talatan Solar Park
Talatan Solar Park is a large solar power complex in Gonghe County, Qinghai, China, begun in 2012 and described as the world's largest, at 8,430 megawatts in 2024.
Tedlar
Tedlar is DuPont's registered trademark for polyvinyl fluoride films, introduced commercially in 1961 and used in photovoltaic module backsheets, aircraft interiors, wallcoverings, and building materials.
Teleorman (wind farm)
Teleorman is a 710 MW solar power project in Teleorman County, southern Romania, acquired in 2024 by OMV Petrom and expected to supply the grid from 2026.
Tengger Desert Solar Park
The Tengger Desert Solar Park is a cluster of photovoltaic power stations on the southeastern edge of the Tengger Desert near Zhongwei, in Ningxia, northwest China, including a 13 GW renewable base.
Ternary organic solar cells
Ternary-blend organic solar cells are organic photovoltaic devices whose photoactive layer holds three components instead of two, widening light absorption and tuning energy levels within a single bulk heterojunction device.
Thermal delamination
Thermal delamination is a recycling process that uses heat to break the adhesive bonds in photovoltaic modules so glass, silicon cells, and metals can be recovered.
Therminol VP-1
Therminol VP-1, also sold as Dowtherm A, is a synthetic heat transfer fluid of diphenyl oxide and biphenyl made by Eastman Chemical, standard in parabolic trough solar plants.
Thermophotovoltaics
Thermophotovoltaics (TPV) is the conversion of thermal radiation into electricity using photovoltaic cells, with a hot emitter above 800 °C replacing the sun as the light source.
Thin-film gallium arsenide solar cell
A thin-film gallium arsenide solar cell is a lightweight, flexible photovoltaic device whose GaAs absorber is peeled from its growth wafer, mainly for space and drones.
Thin-film solar cell
A thin-film solar cell is a photovoltaic cell made by depositing thin semiconductor layers on glass, plastic, or metal rather than a silicon wafer, using far less material.
Three-level neutral-point-clamped inverter
The three-level neutral-point-clamped (NPC) inverter, introduced by Nabae, Takahashi, and Akagi in Japan in 1981, connects each output phase to the positive rail, negative rail, or neutral point.
Tigo Energy
Tigo Energy is a module-level power electronics company for solar photovoltaic systems, founded in 2007, listed on Nasdaq as TYGO, with about 16.6 million devices shipped in over 100 countries.
Tin halide perovskite
Tin halide perovskite is a lead-free perovskite semiconductor in which tin replaces toxic lead, the leading lead-free absorber for perovskite solar cells at up to 17.71% efficiency.
Tin oxide electron transport layer
A tin oxide electron transport layer (SnO2 ETL) is a thin tin dioxide film in perovskite solar cells that extracts electrons to the electrode while blocking holes.
Tin-lead perovskite solar cells
Tin-lead perovskite solar cells are photovoltaic devices with a mixed tin-lead perovskite absorber of roughly 1.2 eV bandgap, used as the bottom subcell in all-perovskite tandems.
Topaz Solar Farm
Topaz Solar Farm is a 550-megawatt solar photovoltaic power plant on the Carrizo Plain in California, owned by Berkshire Hathaway Energy and selling power to PG&E.
Transformerless inverter
A transformerless inverter is a DC-to-AC converter used mainly in photovoltaic systems that feeds solar power into the grid without an isolation transformer, gaining efficiency and cutting cost and weight while requiring leakage-current protection.
Transparent solar module
A transparent solar module is a photovoltaic module that generates electricity while transmitting visible light, letting windows, building facades, and vehicle glazing produce power without blocking the view.
Transpired solar collector
A transpired solar collector is a solar air-heating device in which a dark, perforated metal sheet mounted on a building wall preheats ventilation air, patented as SolarWall in the late 1980s.
Triple-cation perovskite
A triple-cation perovskite is a metal-halide perovskite for solar cells whose A-site mixes cesium, methylammonium, and formamidinium; introduced in 2016, it became a baseline for high-efficiency devices.
Triple-junction perovskite solar cell
A triple-junction perovskite solar cell stacks three light-absorbing subcells, at least one a metal halide perovskite, to convert more of the Sun's energy than a single junction.
Triplet harvesting in organic solar cells
Triplet harvesting in organic solar cells is the set of strategies for converting spin-triplet excitons into usable charge or energy, most prominently singlet fission, which could let a single-junction cell exceed the Shockley–Queisser limit.
Triplet–triplet annihilation upconversion for photovoltaics
Triplet–triplet annihilation upconversion for photovoltaics (TTA-UC) is a photochemical technique that converts two sub-bandgap photons into one higher-energy photon a solar cell can absorb, first demonstrated in 2012.
TS Solar
TS Solar is a 200-megawatt photovoltaic power plant in Eureka County, Nevada, built next to the TS Power Plant to supply Nevada Gold Mines' sites, covering about 17% of their power demand since 2024.
Tunnel oxide passivated contact
Tunnel oxide passivated contact (TOPCon) is a carrier-selective contact for crystalline silicon solar cells, made of an ultrathin silicon oxide layer covered by doped poly-Si.
Two-terminal tandem
A two-terminal tandem, or 2T tandem, is a tandem solar cell with two series-connected subcells accessed through two terminals; perovskite/silicon devices have reached a certified 33.7% efficiency.
Typical meteorological year
A typical meteorological year (TMY) is an artificial year of 8,760 hourly weather records, each month chosen from a different year, used in building energy simulation and solar modeling.
Upgraded metallurgical-grade silicon
Upgraded metallurgical-grade silicon (UMG-Si) is silicon purified from metallurgical-grade silicon to solar grade using metallurgical methods instead of the chemical Siemens process, for solar cells.
Valle Solar Power Station
Valle Solar Power Station names two documented solar plants: a photovoltaic plant in Nacaome, Honduras, and the Valle 1 and Valle 2 trough plants in Cádiz, Spain.