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Glossary

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This is a glossary of terms commonly used on PESWiki. For more help, see PESWiki:Help, PESWiki:FAQ, and PESWiki:Contributing FAQ. For abbreviations often used in edit summaries, see PESWiki:Edit summary legend. For common deletion shorthands used, see the PESWiki:Guide to deletion. See also the directory and PowerPedia for more terms.


Contents: Top - 0–9 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

Alphanumeric sequence

Note: while the definitions below may be useful for understanding and writing text in the pages (Talk, PESWiki, User, Meta, etc.) and edit summaries, some entries are slang. Please write actual articles in jargon-free language which is readily understandable without specific knowledge of the PESWiki project. See: PESWiki:Explain jargon.
Nonetheless, don't overdo the use of PESWiki jargon on PESWiki talk pages or in edit summaries either (specifically linking to maybe less known guidelines/policies via shortcuts). If you need convincing on this point, see PW:WOTTA

0–9

A

B

bscf
billion standard cubic feet
BTU
British thermal unit

C

Centi
Metrix prefix (symbol c) that stands for 10^-2 = 1000^(-2/3).
e.g. 3 centimeters = 0.03 meters.

D

Deci
Metrix prefix (symbol d) that stands for 10^-1 = 1000^(-1/3).
e.g. 2 decimeters = 2*10^-1 dm = 0.2 decimeters.

E

Exa
Metrix prefix (symbol E) that stands for 10^18 = 1000^6.
e.g. 2 exajoule = 2*10^18 joule.

F

Fahrenheit
(symbol °F) is a temperature scale.
Femto
Metrix prefix (symbol f) that stands for 10^-15 = 1000^-5.
e.g. 1 femtojoule = 1*10^-15 joule.

G

Giga
Metrix prefix (symbol G) that stands for 10^9 = 1000^3.
e.g. 1 gigajoule = 1*10^9 joule.

H

hecto
Metrix prefix (symbol h) that stands for 10^2 = 1000^(2/3).
e.g. 5 hectometers = 5*10^2 m = 500 meters.


I

International System of Units
(abbreviated SI from French: Le Système international d'unités)
is the modern form of the metric system. It comprises a coherent system of units of measurement built :around seven base units and coherent derived units.

J

Joule
The joule (symbol J) is a derived unit of energy, work or amount of heat
in the International System of Units.


K

Kelvin
The kelvin (symbol °K) is a unit of measurement for temperature.
It is one of the seven base units in the International System of Units (SI).
The Kelvin scale is an absolute, thermodynamic temperature scale using as its null point
absolute zero,
the temperature at which all thermal motion ceases in the classical description of thermodynamics.


Kilogram
The kilogram (symbol kg) is the base unit of mass in the International System of Units.
The kilogram is defined as being equal to the mass of the International Prototype of the Kilogram (IPK).

L

M

Mega
Metrix prefix (symbol M) that stands for 10^6 = 1000^2.
e.g. 1 megawatt = 1*10^6 watts = one million watts.
Micro
Metrix prefix (symbol µ) that stands for 10^-6 = 1000^-2.
e.g. 1 microwatt = 1*10^-6 watts.
Milli
Metrix prefix (symbol m) that stands for 10^-3 = 1000^-1.
e.g. 1 milliwatt = 1*10^-3 watts.


N

[[Glossary
N-m3|N-m3]]:normal cubic meter
net metering
grid hook-up that allows excess energy generated to be sold back to the utility

O

P

Peta
Metrix prefix (symbol P) that stands for 10^15 = 1000^5.
e.g. 1 petawatt = 1*10^15 watts = 1000^5 watts.

Q

R

S

scf
standard cubic feet


T

Tera
Metrix prefix (symbol T) that stands for 10^12 = 1000^4.
e.g. 1 terajoule = 1*10^12 joule.

U

UFO
Unidentified Flying Object.

V

W

Watt
The watt (symbol W) is a derived unit of power in the International System of Units (SI).
The unit measures the rate of energy conversion of transfer and is defined as one joule per second.
Wp
the Watt peak name plate rating for flat solar plates.
There are two Wp test conditions STC and PTC which are quite different.

X

Y

Z

Zetta
Metrix prefix (symbol Z) that stands for 10^21 = 1000^7.
e.g. 1 zettajoule = 1*10^21 joule.


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Contents: Top - 0–9 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

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