# Energy Conversion: KWH/M2, MWH/CM2 & WATT/M2

• Smile_Face
In summary, kwh/m2 and mwh/cm2 are equivalent, with a difference of a power of 10 in the numerator. Watt/m2 differs from the other two units as it does not have a time factor. In order to convert between the units, it is important to pay attention to the correct prefixes and the correct conversion factors.
Smile_Face
Hi all,

Dose kwh/m2 and mwh/cm2 and watt/m2 equal? if not what are the relationship between them?

How can convert between them??

Smile_Face :)

kwh/m2 and mwh/cm2 are equivalent - they differ by some power of 10. In the numerator k=1000, m=1000000. In the denominator m = 100cm.

watt/m2 is different in that the other two have time as a factor and this doesn't.

1 mwh/cm2 = 0.1 kwh/m2 is that right??

Smile_Face said:

1 mwh/cm2 = 0.1 kwh/m2 is that right??
incorrect. You are off by a factor of one hundred million.

1 megawatt hour = 1,000,000 watt hours
1 kilowatt hour = 1,000 watt hours

1 meter = 100 centimeters

So

1 megawatt hour per square centimeter = 1000 kilowatt hours per square centimeter.
since there are 100 centimeters in a meter there are 10,000 square centimeters in a square meter.

So 1000 kilowatt hours per square centimeter = 1,000 x 10,000 kilowatt hours per square meter = 10,000,000 kilowatt hours per square meter.

I spelled everything out because I think you were confused by the abbreviations. You lost sight of what the units actually are.

Be careful with upper/lowercase in prefixes:
m = milli = 1E-3; M = Mega = 1E6
p = pico = 1E-12; P = Peta = 1E15
(and there´s deci and deka, of course)

## What is energy conversion?

Energy conversion is the process of transforming one form of energy into another. This can include changing energy from mechanical, electrical, chemical, or thermal forms.

## What is KWH/M2?

KWH/M2 stands for kilowatt-hour per square meter. It is a unit of measurement used to measure the amount of energy produced or consumed per square meter in an hour.

## What is MWH/CM2?

MWH/CM2 stands for megawatt-hour per square centimeter. It is a unit of measurement used to measure the amount of energy produced or consumed per square centimeter in an hour.

## What is WATT/M2?

WATT/M2 stands for watt per square meter. It is a unit of measurement used to measure the amount of power produced or consumed per square meter.

## How are these units of energy conversion used?

These units are commonly used in the fields of energy production and consumption, such as in solar energy systems. They help measure the efficiency and output of energy sources and can be used to compare different energy sources.

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