Acronyms

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    • A - Amperes or amps. A measure of current. See warning.
    • AC - Air Conditioning, sometimes A/C.
    • AC - Alternating Current, a waveform of varying voltage in a circuit whose positive half-period corresponds with positive direction of the current and negative half negative direction of current.
    • AFAIK - As far as I know
    • Ah - Amp Hours
    • AGM - Absorbent glass mat, a type of lead acid battery.
    • AKA - Also known as
    • BFE - Basic flood elevation (height above sea level), typically electrical gear (e.g., meter, disconnect) must be at least BFE+1
    • BMS - Battery Management System, variety of features designed to keep lithium Batteries safe
    • BTU - British Thermal Units, a measurement of heat where it takes 1 BUT to heat 1 lb of water 1 degree F.
    • BTUH - British Thermal Units, a measurement of heat where it takes 1 BUT to heat 1 lb of water 1 degree F. per hour
    • CYA - Covering Your Anatomy, actions taken so a person doesn't the take blame for something.
    • DC - Direct current, unidirectional flow or movement of electric charge carriers
    • DIY - Do it Yourself.
    • DMM-Digital Multi Meter also, DVM - Digital Volt Meter and DVAM or DVOM Digital Volt Amp Meter, and Digital Volt Ohm Meter
    • DoD - Depth of Discharge, usually used in reference to optimizing such that you can maximize battery cycle life.
    • DSO - Digital Storage Oscilloscope ** (Scope)** - used to visualize electrical frequency characteristics
    • EF - Electrofrequency RF
    • EFI - Electrofrequency interference RFI
    • ELV - Extra-Low voltage, less than 50 VAC or 120V DC; varies a bit from country to country. Still dangerous.
    • EM - Electromagnetic
    • EMI - Electromagnetic interference
    • EMR - Electromagnetic Radiation RFI
    • EV - Electric Vehicle
    • FLA - Flooded Lead Acid battery, this is the type you put distilled water into.
    • FWIW - For what it's worth
    • GFI - Ground Fault Interrupt, or Grid Forming Inverter
    • GT - Grid tied, for example a GT Inverter is a grid-tied Inverter.
    • GIGO - Garbage In Garbage Out. Translation... bad supplies lead to bad results.
    • HOA - Home Owner's Association, a lot of times they have good intentioned rules to keep the neighbor nice.
    • HV - High Voltage, IEC term to indicate > 1000 VAC or 1500 VDC. see warning
    • HVHZ - High Velocity Hurricane Zone.
    • IMHO - In My Humble Opinion
    • IOT - Internet of things - Excuse to have some serious fun automating or controlling things remotely.
    • Impp - Solar panel Maximum Power Point Amperes, see link
    • IR - Internal resistance, every part in an electrical circuit has some resistance. IR in the forums is usually referring to a battery's resistance.
    • IR - Infra Red, a part of the electromagnetic spectrum associated with heat. Example.
    • Isc - Solar panel Short Circuit in Amperes, , see link
    • KISS - Keep It Simple Silly principle, originally U.S. navy slang that complexity bred failure and should be avoided.
    • kW - 1000 watts, see W
    • LA - Lead Acid Battery
    • LiFePO4 - Lithium Iron Phosphate.
    • LiIon - Lithium Ion Battery chemistry
    • LRA - Locked rotor amps. A measure of the high startup current needed by Induction motors in devices (e.g. refrigerator, pump, AC). Lower LRA means a lower amps.
    • LV - Low Voltage, defined as 50V or less - but is still dangerous. See ELV.
      WARNING: outside the U.S. LV may mean 50 to 1000 VAC and 75 to 1500 VDC,
    • MPPT - Maximum Point Power Tracking - it's an efficient way to maximize the power from your solar panels, aka SCC
    • OCP or OCPD - Over Current Protection Device. Protects a circuit from damage due to an over-current condition (e.g., a fuse).
    • OEM - Original Equipment Manufacturer.
    • OP - Original Poster or Original Post
    • Pmax - Solar panel Maximum in Watts, see link
    • PWM - Pulse Width Modulation - it's a low cost digital technique to pulse power; in the forums usually refers to a type of SCC
    • PWS - Personal Weather Station
    • PTO - Permission to Operate, needs to be granted in grid-tied systems before supplying power to the grid.
    • PV - Photovoltaic, generally referring to solar panels.
    • Rpi - Raspberry Pi
    • RTFM - Read the Fine Manual, or FAQ.
    • RV - Recreational Vehicle - Although that's a technical classification; for many people it's their only home and way of life whether it be due to economics, the Tiny Home movement, or the desire for a nomadic life style.
    • SBC - Single Board Computer
    • SCC - Solar Charge Controller - this is usually a PWM or MPPT; it's the bit that converts solar power to battery power
    • SHTF - A state of regional or global anarchy where people are on their own (e.g., zombies, nuclear war), what preppers prep for.
    • SOC - State of Charge, usually determined by comparing the battery's voltage to a chart for that type of battery.
    • SLA - Sealed Lead Acid battery
    • THD - Total Harmonic Distortion - a measurement voltage distortion in AC due to harmonics (occurs on inverters and generators).
    • V - Volts, a measure of electrical force.
    • VAC - Voltage Alternating Current.
    • VAR - Value Added Reseller
    • VDC - Voltage Direct Current
    • Voc - Solar panel Open Circuit Voltage, see link
    • Vmpp - Solar panel Maximum Power Point Voltage, see link
    • UPS - Uninterruptible Power Supply, a fast switching device that provides power should grid voltage or frequency go beyond set points.
    • W - Watts, a unit of power in an electric circuit
    • Wh - Watt hours, the number of watts over a period of 1 hour.
    • WRT - With regard to
    • YMMV - Your mileage may vary; means that you can expect similar, but not the exact same results.
    • HVD - High Voltage Disconnect
    • LVD - Low Voltage Disconnect
    • (MOS)FET - (Metal Oxide Semiconductor) Field Effect Transistor
    • SBMS - Solar Battery Management System, in context of the Electrodacus BMS
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