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A · B · C · D · E · F · G · H · I · J · K · L · M · N · O · P · Q · R · S · T · U · V · W · X · Y · Z   entire Web this site briefcase solar panels Two solar panels fitted inside a hard case which folds up on itself. Briefcase solar panels are suitable for use when on the move, for example with campers, tarilers, or tents, when no mains hookup is available. The case provides good protection to the delicate solar panels when not in use. When closed the equipment is slim and easily transportable. Towsure (www.towsure.com), for example, offer briefcase solar panels that measure just just 53 cm × 40 cm × 5 cm when closed. The panels can be propped up on a support leg in order to face the sun; for the best output, the panels should be realigned periodically to track the sun across the sky. Long leads with detachable connectors including crocodile clips are provided, so that the panels can be used to charge an auxiliary or vehicle battery. SOLAR ENERGY PAGES ON THIS SITE absorber absorption coefficient absorptivity active solar energy system active solar heating system air-based collector amorphous photovoltaic cell annual solar savings angle of incidence angle of inclination aperture apparent day autonomous system azimuth back-pass solar collector batch solar collector beam radiation blackbody blocking diode buffer storage building-integrated PV bypass diode candela candle power collector efficiency collector fluid collector tilt community solar access compound paraboloid collector concentrating collector concentrator crystalline silicon photovoltaic cell current at maximum power declination differential thermostat diffuse insolation diffuse radiation direct beam radiation direct gain direct insolation direct solar water heater double wall heat exchanger elevation emissivity equinox ethylene vinyl acetate eutectic salts evacuated tube collector expansion tank fill factor flat plate photovoltaic flat plate pumped collector flat plate solar module flat plate solar thermal collector flow condition foot candle Fresnel lens full sun Glauber's salt global insolation ground reflection heat absorbing window glass heliochemical process heliodon heliostat heliothermal heliothermic heliothermometer heliotropic hemispherical bowl technology high-temperature collector hot spot I-V curve illuminance incident light incident solar radiation indirect solar gain system indirect solar water heater infrared radiation insolation instantaneous efficiency interconnect internal collector storage irradiance isolated solar gain system isolation diode junction box light-induced defect light trapping liquid-based active solar heating liquid-based solar collector local solar time low-flow solar water heating system low-temperature collector low emissivity glass lumen maximum power point maximum power point tracker medium-temperature collector mixing valve multijunction device normal operating cell temperature one sun 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station solar collector solar collector orientation and tilt solar constant solar cooker solar cooling solar day solar declination solar distillation solar electric system solar electricity site resource eval. solar energy solar energy for crop drying solar film solar fraction solar furnace solar gain solar heat gain coefficient solar heating solar heating for homes & buildings solar heating system solar hot water for agriculture solar hot water for aquaculture solar hot water system solar irradiation solar mass solar module solar noon Solar One solar oven solar panel solar photovoltaic device solar pond solar power system solar radiation solar simulator solar space heater solar spectrum solar swimming pool heating solar thermal electric system solar thermal parabolic dish solar thermal system solar time solar transmittance solar trough system Solar Two solar ventilation air heating solar voltaic device solar water heater cost estimation solar water heater economics solar water heater efficiency solar water heater freeze protection solar water heater maint. & repair solar water heater site resource eval. solar water heater sizing solar water heating system corrosion solar water heating sys. bldng codes solarium solar-grade silicon solar-powered vehicle solstice spectral energy distribution spectral irradiance spectral reflectance spectrally selective coating split-spectrum cell Staebler-Wronski effect stagnation temperature stand-off mounting standard operating conditions standard test conditions stationary concentarting collector sun path diagram sun tempered building sunspace swimming pool absorber temperature coefficient thermal storage wall thermo photovoltaic (TPV) device thermophotovoltaic cell thermosiphon thermosiphon system thin film cell tilt angle of a solar collector total incident radiation total internal reflection tracking array trickle (solar) collector Trombe wall true south tube-in-plate absorber tube-type collector two-axis tracking two-tank solar system ultraviolet unglazed perforated plate collector unglazed solar collector visible light transmittance visible radiation water wall The Towsure solar panels are 13 W, enabling a theoretical maximum output of 1 amp in bright sunlight, though in practice the current will be slightly lower. When the device is active, a LED blinks to let you know it's working. The panel comes complete with a blocking diode to prevent reverse charging: when the panel is able to supply power to the battery, the diode lets it through, when the panel cannot supply power (at night or in bad weather) the diode prevents the battery discharging back through the panel. Unless you plan to leave the panels charging your battery for long periods whilst not in use, the manufacturers advise you don't need to fit a regulator/charge controller to prevent overcharging. For higher power demands, Towsure can supply panels from 10 W to 80 W as well as a variety of other solar equipment you'd ever need. Related categories    • SOLAR ENERGY AND POWER Also on this site: Encyclopedia of Science Transport Concepts & Designs (partner site) BACK TO TOP