Solar energy can be described as all of the following:
Energy– an indirectly observed quantity, often understood as the ability a physical system has to do work on other physical systems.
Renewable energy– energy which comes from natural resources which are naturally replenished.
Natural resource– materials and components (something that can be used) that can be found within the environment. Every man-made product is composed of natural resources (at its fundamental level). A natural resource may exist as a separate entity such as fresh water, and air, as well as a living organism such as a fish, or it may exist in an alternate form which must be processed to obtain the resource such as metal ores, oil, and most forms of energy.
Renewable resource– natural resource with the ability to reproduce through biological or natural processes and are replenished with the passage of time.
Sunlight– in the broad sense, is the total frequency spectrum of electromagnetic radiation given off by the Sun, particularly infrared, visible, and ultraviolet light.
Timeline of solar cells– begins in the 19th century when it is observed that the presence of sunlight is capable of generating usable electrical energy.
Solar power– the conversion of sunlight into electricity, either directly using photovoltaics (PV), or indirectly using concentrated solar power (CSP).
Active solar– technologies are employed to convert solar energy into another more useful form of energy (for example, to heat or electrical energy).
Heliostat– a device that includes a mirror, usually a plane mirror, which turns so as to keep reflecting sunlight toward a predetermined target, compensating for the Sun's apparent motions in the sky.
Solar tracker– devices that orient various payloads toward the Sun.
Role of copper in generating and transmitting energy with maximum efficiency in solar photovoltaic power generation, concentrating solar thermal power, and solar water heaters.
Solar cell – made from a monocrystalline silicon wafer
Solar chemical – a number of possible processes that harness solar energy by absorbing sunlight in a chemical reaction in a way similar to photosynthesis in plants but without using living organisms.
Solar constant – a measure of flux density, it is the amount of incoming solar electromagnetic radiation per unit area that would be incident on a plane perpendicular to the rays, at a distance of one astronomical unit (AU) (roughly the mean distance from the Sun to the Earth).
Solar inverter – or PV inverter, converts the variable direct current output of a photovoltaic (PV) solar panel into a utility frequency alternating current that can be fed into a commercial electrical grid or used by a local, off-grid electrical network.
Solar water heating (SWH)– or solar hot water (SHW) systems comprise several innovations and many mature renewable energy technologies that have been well established for many years.
Thermal mass– a concept in building design regarding how the mass of the building provides "inertia" against temperature fluctuations, sometimes known as the thermal flywheel effect.
Solar pond– a pool of saltwater which acts as a large-scale solar thermal energy collector with integral heat storage for supplying thermal energy.
Solar chimney– solar chimney– often referred to as a thermal chimney– is a way of improving the natural ventilation of buildings by using convection of air heated by passive solar energy.
Concentrated solar power
Concentrated solar power– a system that uses mirrors or lenses to concentrate a large area of sunlight, or solar thermal energy, onto a small area. Electrical power is produced when the concentrated light is converted to heat, which drives a heat engine (usually a steam turbine) connected to an electrical power generator.
Photoelectric effect– electrons are emitted from matter (metals and non-metallic solids, liquids or gases) as a consequence of their absorption of energy from electromagnetic radiation of very short wavelength, such as visible or ultraviolet radiation.
Photovoltaics (PV)– is a method of generating electrical power by converting solar radiation into direct current electricity using semiconductors that exhibit the photovoltaic effect.
Timeline of solar cells– begins in the 19th century when it is observed that the presence of sunlight is capable of generating usable electrical energy.
Solar insolation– a measure of solar radiation energy received on a given surface area and recorded during a given time. It is also called solar irradiation. Not to be confused with insulation.
Solar constant– a measure of flux density, is the amount of incoming solar electromagnetic radiation per unit area that would be incident on a plane perpendicular to the rays, at a distance of one astronomical unit|astronomical unit (AU) (roughly the mean distance from the Sun to the Earth).
Solar cell efficiency– the percentage of the solar energy to which the cell is exposed that is converted into electrical energy. Also referred to as "energy conversion efficiency".
Third generation photovoltaic cell– are solar cells that are potentially able to overcome the Shockley-Queisser limit of 31-41% power efficiency for single bandgap solar cells.
Solar cell research– in universities and research institutions around the world.
Nanocrystal solar cell– are solar cells based on a substrate with a coating of nanocrystals.
Solar panel– (also solar module, photovoltaic module or photovoltaic panel) is a packaged, connected assembly of photovoltaic cells.
Photovoltaic system– (PV system) use solar panels to convert sunlight into electricity.
Photovoltaic power station– also known as a solar park or solar farm, is a large-scale photovoltaic system designed for the supply of merchant power into the electricity grid.
Nanocrystal solar cell– are solar cells based on a substrate with a coating of nanocrystals.
Organic solar cell– a photovoltaic cell that uses organic electronics—a branch of electronics that deals with conductive organic polymers or small organic molecules.
Quantum dot solar cell– are an emerging field in solar cell research that uses quantum dots as the photovoltaic material, as opposed to better-known bulk materials such as silicon, copper indium gallium selenide (CIGS) or CdTe.
Hybrid solar cell– combine advantages of both organic and inorganic semiconductors.
Plasmonic solar cell (PSC)– are a class of photovoltaic devices that convert light into electricity by using plasmons.
Solar inverter– or PV inverter, converts the variable direct current output of a photovoltaic (PV) solar panel into a utility frequency alternating current that can be fed into a commercial electrical grid or used by a local, off-grid electrical network.
Solar micro-inverter– or micro inverter, converts direct current (DC) electricity from a single solar panel to alternating current (AC).
Solar cable– the interconnection cable used in photovoltaic power generation.
Solar combiner box– an electrical distribution box where the DC fuses or circuit breakers are placed.
Concentrated photovoltaics (CPV)– technology uses optics such as lenses to concentrate a large amount of sunlight onto a small area of solar photovoltaic materials to generate electricity.
Rooftop photovoltaic power station– a system which uses one or more photovoltaic panels, installed on rooftops of residential or commercial buildings, to convert sunlight into electricity.
Topaz Solar Farm– a 550 megawatt (MW) solar photovoltaic power plant, being built in San Luis Obispo County, California.
Solar Umbrella house– a private residence in Venice, California, remodeled using active and passive solar design strategies to enable the house to function independent of the electrical grid.
Erlasee Solar Park– also sometimes called the Gut Erlasee Solar Park, is a photovoltaic power station located in one of the sunniest regions of Germany.
Guadarranque solar power plant– (also known as Cádiz solar power plant, Spanish: Parque Solar Guadarranque, or Planta Solar Guadarranque) is a photovoltaic solar power plant in the Guadarranque industrial park in San Roque, Cádiz, Spain.
Pocking Solar Park– a photovoltaic solar power plant in Pocking, Lower-Bavaria, Germany.
Wyandot Solar Facility– a solar photovoltaic power plant completed in 2010, located in Salem Township, Wyandot County, Ohio.
Kvthen Solar Park–
Building-integrated photovoltaics– photovoltaic materials that are used to replace conventional building materials in parts of the building envelope such as the roof, skylights, or facades.
Moura Photovoltaic Power Station– a large photovoltaic power station in Amareleja, in the municipality of Moura, Portugal. Also known as the Amareleja Photovoltaic Power Station.
Nevada Solar One– a concentrated solar power plant, with a nominal capacity of 64 MW and maximum capacity of 75 MW, spread over an area of 400 acres.
Panoche Valley Solar Farm– a proposed 399 MW photovoltaic power plant in San Benito County, California.
Topaz Solar Farm– a 550 megawatt (MW) solar photovoltaic power plant, being built in San Luis Obispo County, California.
Experimental proposed solar power
Solar updraft tower– a renewable-energy power plant for generating electricity from solar power.
Solar-pumped laser– laser that shares the same optical properties as conventional lasers such as emitting a beam consisting of coherent electromagnetic radiation which can reach high power, but which uses solar radiation for pumping the lasing medium. This type of laser is unique from other types in that it does not require any artificial energy source.
Thermoelectric generator– (also called thermogenerators) are devices which convert heat (temperature differences) directly into electrical energy, using a phenomenon called the "Seebeck effect" (or "thermoelectric effect").
Solar chemical– a number of possible processes that harness solar energy by absorbing sunlight in a chemical reaction in a way similar to photosynthesis in plants but without using living organisms.
Space-based solar power–: Part of the solar energy is lost on its way through the atmosphere by the effects of reflection and absorption.
Solar sail– (also called light sails or photon sails) are a form of spacecraft propulsion using the radiation pressure (also called solar pressure) of light from a star to push large ultra-thin mirrors to high speeds.
Magnetic sail– or magsail is a proposed method of spacecraft propulsion which would use a static magnetic field to deflect charged particles radiated by the Sun as a plasma wind, and thus impart momentum to accelerate the spacecraft.
Solar thermal rocket– a theoretical spacecraft propulsion system that would make use of solar power to directly heat reaction mass, and therefore would not require an electrical generator like most other forms of solar-powered propulsion do.
Economics and politics of solar power
Cost of electricity by source– a calculation of the cost of generating electricity at the point of connection to a load or electricity grid.
Duck curve– graphs the mismatch between peak power load on the grid and hourly solar and wind energy production.
Financial incentives for photovoltaics– are incentives offered to electricity consumers to install and operate solar-electric generating systems, also known as photovoltaics (PV).
Net metering– an electricity policy for consumers who own (generally small) renewable energy facilities (such as wind, solar power or home fuel cells) or V2G electric vehicles.
Feed-in tariff– standard offer contract advanced renewable tariff or renewable energy payments) is a policy mechanism designed to accelerate investment in renewable energy technologies.
Solar power by country
Solar power by country– many industrialized nations are installing significant solar power capacity in their grids as a supplement or alternative to other power sources. Long distance transmission allows remote renewable energy resources to be used to displace fossil fuel consumption.
Solar power in Australia– growth in the amount of installed PV capacity in Australia has been dramatic with a 10-fold increase between 2009 and 2011. Feed-in tariffs and mandatory renewable energy targets designed to assist renewable energy commercialisation in Australia have largely been responsible for the rapid increase.
Solar power in Canada– Canada has many regions that are sparsely populated and difficult to access. Photovoltaic (PV) cells are increasingly used as standalone units, mostly as off-grid distributed electricity generation to power remote homes, telecommunications equipment, oil and pipeline monitoring stations and navigational devices.
Solar power in China– China has over 400 photovoltaic (PV) companies. In 2007 China produced 1.7 GW of solar panel capacity, nearly half of the world production of 3.8 GW, although 99% was exported.
Solar power in the European Union– During 2010, the European solar heating yield was 17.3 TWh, annual turnover was 2.6 Billion € and employment was 33,500 persons (1 job for 80kW new capacity).
Solar power in Germany– in 2011, solar PV provided 18 TWh (billion kilowatt-hours) of electricity in Germany, about 3% of its total electricity capacity.
Solar power in Italy– ranked among the world's largest producers of electricity from solar power with an installed photovoltaic nameplate capacity of 12,750 MW at the end of 2011 and 263,594 plants in operation as of 18 August 2011.
Solar power in Spain– one of the most advanced countries in the development of solar energy, and it is one of the European countries with the most hours of sunshine. Spain is the fourth largest manufacturer in the world of solar power technology and exports 80 percent of this output to Germany.
Olmedilla Photovoltaic Park– photovoltaic power plant in Olmedilla de Alarcón, Spain, with 270,000 solar photovoltaic panels generating 60 megawatts (peak). It produces enough electricity to power more than 40,000 homes.
Solar power in India– already a leader in wind power generation, India is planning to produce 20 GW of solar power by 2020.
Solar power in Israel– with no oil reserves and the country's tenuous relations with its oil-rich neighbors, the search for a stable source of energy is a national priority.[1][2] Solar technology in Israel has advanced to the point where it is almost cost-competitive with fossil fuels.[3]
Solar power in Japan– a leading manufacturer of solar panels and is in the top 5 ranking for countries with the most solar PV installed.
Grid energy storage– (also called large-scale energy storage) refers to the methods used to store electricity on a large scale within an electrical power grid.
Thermal mass– a concept in building design regarding how the mass of the building provides "inertia" against temperature fluctuations, sometimes known as the thermal flywheel effect.
Seasonal thermal energy storage - a collection of technologies for storing sensible heat, and large storages are capable of storage between opposing seasons with acceptably small heat losses. Technologies include: (1) Aquifer thermal energy storage, involving from a doublet of injection and extraction wells (each half being one or more wells) in a deep, contained aquifer; (2) A mass of native geological stratas (gravel, bedrock, etc.), thermally accessed via a cluster of small-diameter, heat exchanger equipped boreholes typically several hundred feet deep; (3) gravel/water-filled shallow pits, lined and top-insulated; and (4) large tank built on the surface, insulated and covered with earth berms.
Phase change material– a substance with a high heat of fusion which, melting and solidifying at a certain temperature, is capable of storing and releasing large amounts of energy. Heat is absorbed or released when the material changes from solid to liquid and vice versa; thus, PCMs are classified as latent heat storage (LHS) units.
Solar balloon– a balloon that gains buoyancy when the air inside is heated by the Sun's radiation, usually with the help of black or dark balloon material.
Agriculture
Greenhouse– (also called a glasshouse) is a building in which plants are grown.
Polytunnel– a tunnel made of polyethylene used to grow plants that require a higher temperature and/or humidity than that which is available in the environment.
Row cover– (or cloche) any material used as a protective covering to shield plants, usually vegetables, primarily from the undesirable effects of cold and wind, and also from insect damage.
Solar-powered pump– an off-the-grid system made up of solar panels, its controller and a pump
Appliances
Solar-powered refrigerator– An appliance to keep food or other things cool; runs on energy directly obtained from the Sun.
Solar air conditioning– To keep buildings cool; runs on energy directly obtained from the Sun.
Solar lamp– a portable light fixture composed of an LED lamp, a photovoltaic solar panel, and a rechargeable battery.
Solar charger– employs solar energy to supply electricity to devices or charge batteries.
Solar backpack– a cloth sack carried on one's back and secured with two straps that go over the shoulders, equipped with thin film solar cells and batteries.
Solar tree– a decorative means of obtaining solar energy.
Solar-powered pump– a pump running on electricity generated by photovoltaics. The operation of solar-powered pumps is more economical and has less environmental impact than pumps powered by an internal combustion engine (ICE).
Solar-powered watch– partly or wholly powered by solar cells integrated within the watch face.
Solar Tuki– a portable solar lamp unit with white LED bulbs designed to provide rural Nepal with an alternative to traditional kerosene tukis[clarification needed], their main current source of night-time illumination.
Photovoltaic keyboard– a wireless computer keyboard that charges its batteries from a light source such as the Sun or interior lighting, addressing a major drawback of wireless computer peripherals that otherwise require regular replacement of discharged batteries.
Solar road stud– maintenance-free flashing lighting devices powered by solar cellsand used in road construction to delineate road edges and centre lines.
Solar-powered fan– a mechanical fan powered by solar panels.
Solar street light– raised light sources which are powered by photovoltaic panels generally mounted on the lighting structure.
Solar traffic light– a signalling device powered by solar panels positioned at road intersections, pedestrian crossings and other locations to control the flow of traffic.
Building
Passive solar building design– windows, walls, and floors are made to collect, store, and distribute solar energy in the form of heat in the winter and reject solar heat in the summer.
Building-integrated photovoltaics– photovoltaic materials are used to replace conventional building materials in parts of the building envelope such as the roof, skylights, facades, or bri-soleil.
Urban heat island (UHI)– is a metropolitan area which is significantly warmer than its surrounding rural areas due to the modification of land surfaces, and waste heat from buildings and transportation.
Lighting
Hybrid solar lighting (HSL)– or hybrid lighting systems combine the use of solar with artificial light for interior illumination by channelling sunlight through fiber optic cable bundles to provide solar light into rooms without windows or skylights, and by supplementing this natural light with artificial—typically LED—light as required.
Solar lamp– a portable light fixture composed of an LED lamp, a photovoltaic solar panel, and a rechargeable battery.
Solar Tuki– a portable solar lamp unit with white LED bulbs designed to provide rural Nepal with an alternative to traditional kerosene tukis, their main current source of night-time illumination.
Light tube– or light pipes are used for transporting or distributing natural or artificial light.
Daylighting– the practice of placing windows or other openings and reflective surfaces so that during the day natural light provides effective internal lighting.
Process heat
Solar pond– a pool of saltwater which acts as a large-scale solar thermal energy collector with integral heat storage for supplying thermal energy.
Solar furnace– a structure that uses concentrated solar power to produce high temperatures, usually for industry.
Salt evaporation pond– also called salterns or salt pans, are shallow artificial ponds designed to produce salts from sea water or other brines.
Solar cooking
Solar cooker– or solar oven, is a device which uses the energy of sunlight to heat food or drink to cook it or sterilize it.
Solar disinfection
Solar water disinfection– also known as SODIS is a method of disinfecting water using only sunlight and plastic PET bottles.
Soil solarization– an environmentally friendly method of using solar power for controlling disease agents in the soil by mulching the soil and covering it with tarp, usually with a transparent polyethylene cover, to trap solar energy.
Solar still– a low-tech way of distilling water, powered by the heat of the sun (more precisely, the heat & humidity of the soil, and relative cool of the plastic).
Desalination– desalinization, or desalinisation refers to any of several processes that remove some amount of salt and other minerals from saline water.
Solar water heating
Solar water heating (SWH)– or solar hot water (SHW) systems comprise several innovations and many mature renewable energy technologies that have been well established for many years.
Solar combisystem– provides both solar space heating and cooling as well as hot water from a common array of solar thermal collectors, usually backed up an auxiliary non-solar heat source.
Solar controller– an electronic device that turns on and off power to the circulating pump in a solar water heater.
Electric aircraft– an aircraft that runs on electric motors rather than internal combustion engines, with electricity coming from fuel cells, solar cells, ultracapacitors, power beaming, or batteries.
Solar vehicle– an electric vehicle powered completely or significantly by direct solar energy.
Land transport
Solar vehicle– an electric vehicle powered completely or significantly by direct solar energy.
Solar car– a solar vehicle used for land transport.
Solar roadway– a road surface that generates electricity by solar photovoltaics.
Solar golf cart– are golf carts powered by mounting a photovoltaic (PV) or thin film panel on top of the existing roof or using a PV panel as the roof itself.
The Quiet Achiever– also known as the BP Solar Trek, was the world's first practical solar-powered car built to be driven by a person for long distances and powered solely by photovoltaic solar cells with no other back-up power source (i.
Sunmobile– was a model of a solar-powered automobile.
Air transport
Electric aircraft– an aircraft that runs on electric motors rather than internal combustion engines, with electricity coming from fuel cells, solar cells, ultracapacitors, power beaming, or batteries.
Mauro Solar Riser– an American biplane ultralight electric aircraft that was the first crewed aircraft to fly on solar power.
Gossamer Penguin– was a solar-power experimental aircraft created by Paul MacCready's AeroVironment.
Qinetiq Zephyr– a lightweight solar-powered UAV which was originally designed and built by the QQ1 "Edge of Space" team who were sponsored by the United Kingdom defence firm, Qinetiq.
Solar Challenger– was a solar-powered electric aircraft designed by Paul MacCready's AeroVironment.
Water transport
Solar powered boat– Photovoltaic power, temporarily stored in accumulator batteries, is used to drive a propeller via an electric motor.
Solar vehicle racing
Solar car racing– competitive races of electric vehicles which are powered by solar energy obtained from solar panels on the surface of the car (solar cars).
North American Solar Challenge (ASC)– previously known as Sunrayce, the American Solar Challenge, and the North American Solar Challenge, is a solar car race across the United States and Canada.
Solar Cup– an eco-boating competition in Temecula, California.
Solar Splash– an intercollegiate solar-electric boat competition dedicated to showing the feasibility of solar energy.
South African Solar Challenge– an alternative fuel vehicle auto racing challenge in South Africa, with classes for hybrid vehicles, electric vehicles, solar vehicles, and biofuel-powered vehicles.
Tour de Sol– in Switzerland was the first rally for solar-powered vehicles.
UC Solar Team– a multi-disciplinary student based team at the University of Calgary established to design and build a solar car to compete in the American Solar Challenge (ASC; previously named the North American Solar Challenge) and the World Solar Challenge (WSC).
Charles Fritts– was the American inventor credited with creating the first working solar cell in 1883.
Calvin Fuller– was a physical chemist at AT&T Bell Laboratories where he worked for 37 years from 1930 to 1967. Fuller was part of a team in basic research that found answers to physical challenges.
Abram Ioffe– was a prominent Russian/Soviet physicist. Ioffe was an expert in electromagnetism, radiology, crystals, high-impact physics, thermoelectricity and photoelectricity.
Wolfgang Scheffler– the inventor/promoter of Scheffler Reflectors, large, flexible parabolic reflecting dishes that concentrate sunlight for solar cooking in community kitchens, bakeries, etc. and in the world's first solar-powered crematorium.
Artificial photosynthesis– a chemical process that replicates the natural process of photosynthesis, a process that converts sunlight, water, and carbon dioxide into carbohydrates and oxygen.
AstroFlight Sunrise– was an uncrewed experimental electric aircraft technology demonstrator and the first aircraft to fly on solar power.
Auroville– (City of Dawn) is an "experimental" township in Viluppuram district in the state of Tamil Nadu, India, near Pondicherry in South India.
BP Solar– a subsidiary of BP, was a manufacturer and installer of photovoltaic solar cells headquartered in Madrid, Spain, with production facilities in India and the People's Republic of China.
BrightSource Energy– an Oakland, California, corporation that designs, builds, finances, and operates utility-scale solar power plants.
Community solar farm– or solar garden is a solar power installation that accepts capital from and provides credit for the output and tax benefits to individual and other investors.
Compact linear Fresnel reflector (CLFR)– also referred to as a concentrating linear Fresnel reflector– is a specific type of linear Fresnel reflector (LFR) technology.
Crookes radiometer– also known as the light mill, consists of an airtight glass bulb, containing a partial vacuum.
Daylighting– the practice of placing windows or other openings and reflective surfaces so that during the day natural light provides effective internal lighting.
Desertec– a concept proposed by the DESERTEC Foundation for making use of solar energy and wind energy.
Drake Landing Solar Community (DLSC)– is a planned community in Okotoks, Alberta, Canada, equipped with a central solar heating system and other energy efficient technology.
Dye-sensitized solar cell– DSC or DYSC) is a low-cost solar cell belonging to the group of thin film solar cells.
Effect of sun angle on climate– as the angle at which sunlight strikes the Earth varies by location, time of day, and season due to the Earth's orbit around the Sun and the Earth's rotation around its tilted axis.
European Photovoltaic Industry Association (EPIA)– is the world's largest solar photovoltaic (PV) industry association, representing around 95 percent of the European photovoltaic industry and 80 percent of the worldwide PV industry.
Feed-in tariff– standard offer contract advanced renewable tariff or renewable energy payments) is a policy mechanism designed to accelerate investment in renewable energy technologies.
Geomagnetic storm– a temporary disturbance of the Earth's magnetosphere caused by a disturbance in the interplanetary medium.
Global dimming– the gradual reduction in the amount of global direct irradiance at the Earth's surface that was observed for several decades after the start of systematic measurements in the 1950s.
Helioseismology– the study of the propagation of wave oscillations, particularly acoustic pressure waves, in the Sun.
Hybrid solar lighting (HSL)– or hybrid lighting systems combine the use of solar with artificial light for interior illumination by channelling sunlight through fiber optic cable bundles to provide solar light into rooms without windows or skylights, and by supplementing this natural light with artificial—typically LED—light as required.
Insolation– a measure of solar radiation energy received on a given surface area and recorded during a given time.
Ivanpah Solar Power Facility– is a solar thermal power project currently under construction in the California Mojave Desert, 40 miles (60km) southwest of Las Vegas, with a planned capacity of 392megawatts (MW).
List of photovoltaics companies– top 10 solar module playersSolar modules, as the final products to be installed to generate electricity, are regarded as the major components to be selected by customers willing to choose solar PV energy.
Magnetic sail– or magsail is a proposed method of spacecraft propulsion which would use a static magnetic field to deflect charged particles radiated by the Sun as a plasma wind, and thus impart momentum to accelerate the spacecraft.
Nanocrystal solar cell– are solar cells based on a substrate with a coating of nanocrystals.
Nevada Solar One– a concentrated solar power plant, with a nominal capacity of 64 MW and maximum capacity of 75 MW, spread over an area of 400 Acres.
North American Solar Challenge (ASC)–, previously known as Sunrayce, the American Solar Challenge, and the North American Solar Challenge, is a solar car race across the United States and Canada.
Parabolic reflector– (or dish or mirror) is a reflective device used to collect or project energy such as light, sound, or radio waves.
Photovoltaics (PV)– is a method of generating electrical power by converting solar radiation into direct current electricity using semiconductors that exhibit the photovoltaic effect.
Polytunnel– a tunnel made of polyethylene used to grow plants that require a higher temperature and/or humidity than that which is available in the environment.
Right to light– a form of easement in English law that gives a long-standing owner of a building with windows a right to maintain the level of illumination.
Row cover– (or cloche) is any material used as a protective covering to shield plants, usually vegetables, primarily from the undesirable effects of cold and wind, and also from insect damage.
Salt evaporation pond– also called salterns or salt pans, are shallow artificial ponds designed to produce salts from sea water or other brines.
Sandia National Laboratories– managed and operated by the Sandia Corporation (a wholly owned subsidiary of Lockheed Martin Corporation), are two major United States Department of Energy research and development national laboratories.
Seasonal thermal energy storage– (also known as a seasonal heat storage or interseasonal thermal storage) is the use of a thermal repository (sometimes very large) to, for example, retain solar heat acquired during the hot summer months to provide heating during colder winter weather in and individual building or district heating system. The use of other time-mismatched thermal source such winter's cold or waste heat can also be enabled with STES technologies.
Soil solarization– an environmentally friendly method of using solar power for controlling disease agents in the soil by mulching the soil and covering it with tarp, usually with a transparent polyethylene cover, to trap solar energy.
Solar and Heliospheric Observatory (SOHO)– is a spacecraft built by a European industrial consortium led by Matra Marconi Space (now Astrium) that was launched on a Lockheed Martin Atlas IIAS launch vehicle on December 2, 1995 to study the Sun, and has discovered over 2200 comets.
Solar architecture– the integration of solar panel technology with modern building techniques.
Solar balloon– a balloon that gains buoyancy when the air inside is heated by the solar radiation|sun's radiation, usually with the help of black or dark balloon material.
Solar car– a solar vehicle used for land transport.
Solar cell research– in universities and research institutions around the world.
Solar Challenger– was a solar-powered electric aircraft designed by Paul MacCready's AeroVironment.
Solar chimney– solar chimney — often referred to as a thermal chimney — is a way of improving the natural ventilation of buildings by using convection of air heated by passive solar energy.
Solar cycle– (or solar magnetic activity cycle) has a period of about 11 years.
Solar Decathlon– an international competition that challenges 20 collegiate teams to design, build, and operate the most attractive, effective, and energy-efficient solar-powered house.
Solar easement– a right, expressed as an easement, restriction, covenant, or condition contained in any deed, contract, or other written instrument executed by or on behalf of any landowner for the purpose of assuring adequate access to direct sunlight for solar energy systems.
Solar eclipse– occurs when the Moon passes between the Sun and the Earth, and the Moon fully or partially blocks the Sun.
Solar flare– a sudden brightening observed over the Sun's surface or the solar limb, which is interpreted as a large energy release of up to 6 × 1025 joules of energy.
Solar inverter– or PV inverter, converts the variable direct current output of a photovoltaic (PV) solar panel into a utility frequency alternating current that can be fed into a commercial electrical grid or used by a local, off-grid electrical network.
Solar lamp– a portable light fixture composed of a LED lamp, a photovoltaic solar panel, and a rechargeable battery.
Solar maximum– or solar max is the period of greatest solar activity in the solar cycle of the Sun.
Solar minimum– the period of least solar activity in the solar cycle of the Sun.
Solar mirror– a reflective surface used for gathering and reflecting solar energy in a system being powered by solar energy.
Solar power tower– also known as 'central tower' power plants or 'heliostat' power plants or power towers, is a type of solar furnace using a tower to receive the focused sunlight.
Solar-powered desalination unit– a device capable of harnessing energy from the sun to produce portable water from saline water through direct or indirect methods.
Solar prominence– a large, bright feature extending outward from the Sun's surface, often in a loop shape.
Solar proton event– (or proton storm) occurs when protons emitted by the Sun become accelerated to very high energies either close to the Sun during a solar flare or in interplanetary space by the shocks associated with coronal mass ejections.
Solar sail– (also called light sails or photon sails) are a form of spacecraft propulsion using the radiation pressure (also called solar pressure) of light from a star to push large ultra-thin mirrors to high speeds.
Solar savings fraction– or solar fraction (f) is the amount of energy provided by the solar technology divided by the total energy required.
Solar shingles– also called photovoltaic shingles, are solar cells designed to look like conventional asphalt shingles.
Solar variation– the change in the amount of radiation emitted by the Sun (see Solar radiation) and in its spectral distribution over years to millennia.
Solar vehicle– an electric vehicle powered completely or significantly by direct solar energy.
Solar water disinfection– also known as SODIS is a method of disinfecting water using only sunlight and plastic PET bottles.
Solar water heating (SWH)– or solar hot water (SHW) systems comprise several innovations and many mature renewable energy technologies that have been well established for many years.
Sopogy– a solar thermal technology supplier was founded in 2002 at the Honolulu, Hawaii-based clean technology incubator.
South African Solar Challenge– an alternative fuel vehicle auto racing challenge in South Africa, with classes for hybrid vehicles, electric vehicles, solar vehicles, and biofuel-powered vehicles.
Space-based solar power–: Part of the solar energy is lost on its way through the atmosphere by the effects of reflection and absorption.
Sun tanning– or simply tanning is the process whereby skin color is darkened or tanned.
Sunburn– a burn to living tissue, such as skin, which is produced by overexposure to ultraviolet (UV) radiation, commonly from the sun's rays.
Sunscreen– (also commonly known as sunblock, sun tan lotion, sun screen, sun cream or block out) is a lotion, spray, gel or other topical product that absorbs or reflects some of the sun's ultraviolet (UV) radiation on the skin exposed to sunlight and thus helps protect against sunburn.
Trombe wall– a sun-facing wall separated from the outdoors by glass and an air space, which absorbs solar energy and releases it selectively towards the interior at night.
The Solar Project– consists of the Solar One, Solar Two and Solar Tres solar thermal power plants based in the Mojave Desert, USA and AndalucÃa, Spain.