H harmonic content The number of frequencies in the output waveform in addition to the primary frequency (50 or 60 Hz.). Most solar lights have a switch on the back or bottom that allows you to choose between the two modes. electrode A conductor that is brought in conducting contact with a ground. This current increases with increasing voltage and temperature. Related to charge rate. The main components of a solar light include; Solar panel LED (Light Emitting Diode) Charge controller Rechargeable Battery This integration may be in vertical facades, replacing view glass, spandrel glass, or other facade material; into semitransparent skylight systems; into roofing systems, replacing traditional roofing materials; into shading eyebrows over windows; or other building envelope systems. They are often the sources of lowest-cost of energy when run at very high capacity factors. Manufactured by depositing layers of doped silicon on a substrate. Gassing commonly results from local action self-discharge or from the electrolysis of water in the electrolyte during charging. gel-type battery Lead-acid battery in which the electrolyte is composed of a silica gel matrix. Not everyone is aware that rechargeable solar light batteries exist. Two-axis tracking arrays capture the maximum possible daily energy. specific gravity The ratio of the weight of the solution to the weight of an equal volume of water at a specified temperature. See also mulitjunction device. The labeling on the leads will also indicate the conductor size and what the wire is made of, either aluminum or copper. 1 source: Office of Energy Efficiency & Renewable Energy ENERGY.GOV, mySolar.com 2013 all rights reserved | Privacy Policy | Site Map, 10 Reasons Going Solar Will Make You Happy, 10 Ways Solar Power Helps Make You A Cool Dude, Going Solar Will Make Your Kids Think You are Awesome Again, 10 Reasons You Should Date a Guy With Home Solar Power, Celebrities That Have Made the Switch to Home Solar Power, Advantages of Purchasing a Home Solar Power System, Home Solar 30% Federal Tax Credit due to Expire, What Your Utility Company Doesnt Want You to Know, California Solar Rights Solar Access Solar Easement, Top Five Cities in California for Solar Power, 10 Things to Ask Your Home Solar Energy Installer/Salesperson, Natural Gas vs. Higher lighting requirements of highways and parking lots start around 25 Watts / 2600 Lumens and goes up to 70 Watts / 6500 Lumens. Under common usage, the term battery also applies to a single cell if it constitutes the entire electrochemical storage system. The on/off switch is a potential source of trouble for a new owner who perhaps isn't aware that the switch is there. single-crystal material A material that is composed of a single crystal or a few large crystals. quantum efficiency (QE) The ratio of the number of charge carriers collected by a photovoltaic cell to the number of photons of a given energy shining on the cell. microgroove A small groove scribed into the surface of a solar cell, which is filled with metal for contacts. With the addition of circuitry, current will flow and electric power will be available. building integrated photovoltaics A term for the design and integration of photovoltaic (PV) technology into the building envelope, typically replacing conventional building materials. The system and grid are automatically configured for optimal operation. 100-watt solar panels at a glance: A 100-watt solar panel typically produces between 300 and 600 watt-hours (Wh) of solar energy per day. stand-alone system An autonomous or hybrid photovoltaic system not connected to a grid. Chlorophyll looks green not because it absorbs green light, but actually because it doesn't absorb it. When it gets dark, the circuit board or sensor detects no light coming from the panel and stops the battery from being charged rather than using the battery to power the LED bulb.